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Cui T, Xu J, Wang X, Liu L, Xiang Y, Zhu H, Li X, Fu Y. Highly reversible transition metal migration in superstructure-free Li-rich oxide boosting voltage stability and redox symmetry. Nat Commun 2024; 15:4742. [PMID: 38834571 DOI: 10.1038/s41467-024-48890-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/15/2024] [Indexed: 06/06/2024] Open
Abstract
The further practical applications of Li-rich layered oxides are impeded by voltage decay and redox asymmetry, which are closely related to the structural degradation involving irreversible transition metal migration. It has been demonstrated that the superstructure ordering in O2-type materials can effectively suppress voltage decay and redox asymmetry. Herein, we elucidate that the absence of this superstructure ordering arrangement in a Ru-based O2-type oxide can still facilitate the highly reversible transition metal migration. We certify that Ru in superstructure-free O2-type structure can unlock a quite different migration path from Mn in mostly studied cases. The highly reversible migration of Ru helps the cathode maintain the structural robustness, thus realizing terrific capacity retention with neglectable voltage decay and inhibited oxygen redox asymmetry. We untie the knot that the absence of superstructure ordering fails to enable a high-performance Li-rich layered oxide cathode material with suppressed voltage decay and redox asymmetry.
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Affiliation(s)
- Tianwei Cui
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Jialiang Xu
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xin Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Longxiang Liu
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK
| | - Yuxuan Xiang
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310030, China
| | - Hong Zhu
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiang Li
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.
| | - Yongzhu Fu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.
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2
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Marie JJ, House RA, Rees GJ, Robertson AW, Jenkins M, Chen J, Agrestini S, Garcia-Fernandez M, Zhou KJ, Bruce PG. Trapped O 2 and the origin of voltage fade in layered Li-rich cathodes. NATURE MATERIALS 2024; 23:818-825. [PMID: 38429520 DOI: 10.1038/s41563-024-01833-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/06/2024] [Indexed: 03/03/2024]
Abstract
Oxygen redox cathodes, such as Li1.2Ni0.13Co0.13Mn0.54O2, deliver higher energy densities than those based on transition metal redox alone. However, they commonly exhibit voltage fade, a gradually diminishing discharge voltage on extended cycling. Recent research has shown that, on the first charge, oxidation of O2- ions forms O2 molecules trapped in nano-sized voids within the structure, which can be fully reduced to O2- on the subsequent discharge. Here we show that the loss of O-redox capacity on cycling and therefore voltage fade arises from a combination of a reduction in the reversibility of the O2-/O2 redox process and O2 loss. The closed voids that trap O2 grow on cycling, rendering more of the trapped O2 electrochemically inactive. The size and density of voids leads to cracking of the particles and open voids at the surfaces, releasing O2. Our findings implicate the thermodynamic driving force to form O2 as the root cause of transition metal migration, void formation and consequently voltage fade in Li-rich cathodes.
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Affiliation(s)
- John-Joseph Marie
- Department of Materials, University of Oxford, Oxford, UK
- The Faraday Institution, Didcot, UK
| | - Robert A House
- Department of Materials, University of Oxford, Oxford, UK.
- The Faraday Institution, Didcot, UK.
| | - Gregory J Rees
- Department of Materials, University of Oxford, Oxford, UK
- The Faraday Institution, Didcot, UK
| | | | - Max Jenkins
- Department of Materials, University of Oxford, Oxford, UK
| | - Jun Chen
- Department of Materials, University of Oxford, Oxford, UK
| | | | | | | | - Peter G Bruce
- Department of Materials, University of Oxford, Oxford, UK.
- The Faraday Institution, Didcot, UK.
- Department of Chemistry, University of Oxford, Oxford, UK.
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3
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McColl K, Coles SW, Zarabadi-Poor P, Morgan BJ, Islam MS. Phase segregation and nanoconfined fluid O 2 in a lithium-rich oxide cathode. NATURE MATERIALS 2024; 23:826-833. [PMID: 38740957 DOI: 10.1038/s41563-024-01873-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 03/19/2024] [Indexed: 05/16/2024]
Abstract
Lithium-rich oxide cathodes lose energy density during cycling due to atomic disordering and nanoscale structural rearrangements, which are both challenging to characterize. Here we resolve the kinetics and thermodynamics of these processes in an exemplar layered Li-rich (Li1.2-xMn0.8O2) cathode using a combined approach of ab initio molecular dynamics and cluster expansion-based Monte Carlo simulations. We identify a kinetically accessible and thermodynamically favourable mechanism to form O2 molecules in the bulk, involving Mn migration and driven by interlayer oxygen dimerization. At the top of charge, the bulk structure locally phase segregates into MnO2-rich regions and Mn-deficient nanovoids, which contain O2 molecules as a nanoconfined fluid. These nanovoids are connected in a percolating network, potentially allowing long-range oxygen transport and linking bulk O2 formation to surface O2 loss. These insights highlight the importance of developing strategies to kinetically stabilize the bulk structure of Li-rich O-redox cathodes to maintain their high energy densities.
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Affiliation(s)
- Kit McColl
- Department of Chemistry, University of Bath, Bath, UK.
- The Faraday Institution, Harwell Science and Innovation Campus, Didcot, UK.
| | - Samuel W Coles
- Department of Chemistry, University of Bath, Bath, UK
- The Faraday Institution, Harwell Science and Innovation Campus, Didcot, UK
| | - Pezhman Zarabadi-Poor
- Department of Chemistry, University of Bath, Bath, UK
- The Faraday Institution, Harwell Science and Innovation Campus, Didcot, UK
- Department of Materials, University of Oxford, Oxford, UK
| | - Benjamin J Morgan
- Department of Chemistry, University of Bath, Bath, UK
- The Faraday Institution, Harwell Science and Innovation Campus, Didcot, UK
| | - M Saiful Islam
- Department of Chemistry, University of Bath, Bath, UK.
- The Faraday Institution, Harwell Science and Innovation Campus, Didcot, UK.
- Department of Materials, University of Oxford, Oxford, UK.
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4
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Zhao G, Zhang T, Wang R, Zhang N, Zheng L, Ma X, Yang J, Liu X. Engineering Reversible Lattice Structure for High-Capacity Co-Free Li-Rich Cathodes with Negligible Capacity Degradation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401839. [PMID: 38804822 DOI: 10.1002/smll.202401839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/20/2024] [Indexed: 05/29/2024]
Abstract
Co-free Li-rich Mn-based cathode materials are garnering great interest because of high capacity and low cost. However, their practical application is seriously hampered by the irreversible oxygen escape and the poor cycling stability. Herein, a reversible lattice adjustment strategy is proposed by integrating O vacancies and B doping. B incorporation increases TM─O (TM: transition metal) bonding orbitals whereas decreases the antibonding orbitals. Moreover, B doping and O vacancies synergistically increase the crystal orbital bond index values enhancing the overall covalent bonding strength, which makes TM─O octahedron more resistant to damage and enables the lattice to better accommodate the deformation and reaction without irreversible fracture. Furthermore, Mott-Hubbard splitting energy is decreased due to O vacancies, facilitating electron leaps, and enhancing the lattice reactivity and capacity. Such a reversible lattice, more amenable to deformation and forestalling fracturing, markedly improves the reversibility of lattice reactions and mitigates TM migration and the irreversible oxygen redox which enables the high cycling stability and high rate capability. The modified cathode demonstrates a specific capacity of 200 mAh g-1 at 1C, amazingly sustaining the capacity for 200 cycles without capacity degradation. This finding presents a promising avenue for solving the long-term cycling issue of Li-rich cathode.
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Affiliation(s)
- Guangxue Zhao
- College of Sino-Danish, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Sino-Danish Center for Education and Research, Beijing, 100049, P. R. China
| | - Tianran Zhang
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ruoyu Wang
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Nian Zhang
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaobai Ma
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, 102413, P. R. China
| | - Jinbo Yang
- College of Physics, Peking University, Beijing, 100871, P. R. China
| | - Xiangfeng Liu
- College of Sino-Danish, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Sino-Danish Center for Education and Research, Beijing, 100049, P. R. China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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5
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Li Y, Mazzio KA, Yaqoob N, Sun Y, Freytag AI, Wong D, Schulz C, Baran V, Mendez ASJ, Schuck G, Zając M, Kaghazchi P, Adelhelm P. Competing Mechanisms Determine Oxygen Redox in Doped Ni-Mn Based Layered Oxides for Na-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309842. [PMID: 38269958 DOI: 10.1002/adma.202309842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/11/2023] [Indexed: 01/26/2024]
Abstract
Cation doping is an effective strategy for improving the cyclability of layered oxide cathode materials through suppression of phase transitions in the high voltage region. In this study, Mg and Sc are chosen as dopants in P2-Na0.67Ni0.33Mn0.67O2, and both have found to positively impact the cycling stability, but influence the high voltage regime in different ways. Through a combination of synchrotron-based methods and theoretical calculations it is shown that it is more than just suppression of the P2 to O2 phase transition that is critical for promoting the favorable properties, and that the interplay between Ni and O activity is also a critical aspect that dictates the performance. With Mg doping, the Ni activity can be enhanced while simultaneously suppressing the O activity. This is surprising because it is in contrast to what has been reported in other Mn-based layered oxides where Mg is known to trigger oxygen redox. This contradiction is addressed by proposing a competing mechanism between Ni and Mg that impacts differences in O activity in Na0.67MgxNi0.33- xMn0.67O2 (x < 0 < 0.33). These findings provide a new direction in understanding the effects of cation doping on the electrochemical behavior of layered oxides.
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Affiliation(s)
- Yongchun Li
- Institut für Chemie, Humboldt-University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Katherine A Mazzio
- Institut für Chemie, Humboldt-University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
- Joint Research Group "Operando Battery Analysis" (CE-GOBA), Helmholtz-Zentrum Berlin für Materialien und Energie, GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Najma Yaqoob
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research Materials Synthesis and Processing (IEK-1), 52425, Jülich, Germany
- MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, The Netherlands
| | - Yanan Sun
- Institut für Chemie, Humboldt-University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
- Joint Research Group "Operando Battery Analysis" (CE-GOBA), Helmholtz-Zentrum Berlin für Materialien und Energie, GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Annica I Freytag
- Institut für Chemie, Humboldt-University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
- Joint Research Group "Operando Battery Analysis" (CE-GOBA), Helmholtz-Zentrum Berlin für Materialien und Energie, GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Deniz Wong
- Dynamics and Transport in Quantum Materials, Helmholtz-Zentrum Berlin für Materialen und Energie, GmbH, Albert-Einstein-Strasse 15, 12489, Berlin, Germany
| | - Christian Schulz
- Dynamics and Transport in Quantum Materials, Helmholtz-Zentrum Berlin für Materialen und Energie, GmbH, Albert-Einstein-Strasse 15, 12489, Berlin, Germany
| | - Volodymyr Baran
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607, Hamburg, Germany
| | - Alba San Jose Mendez
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607, Hamburg, Germany
| | - Götz Schuck
- Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Marcin Zając
- National Synchrotron Radiation Centre SOLARIS, Jagiellonian University, ul, Czerwone Maki 98, Kraków, 30-392, Poland
| | - Payam Kaghazchi
- Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research Materials Synthesis and Processing (IEK-1), 52425, Jülich, Germany
- MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, The Netherlands
| | - Philipp Adelhelm
- Institut für Chemie, Humboldt-University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
- Joint Research Group "Operando Battery Analysis" (CE-GOBA), Helmholtz-Zentrum Berlin für Materialien und Energie, GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
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6
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Park JY, Choi J, Lee S, Jeong JS, Min KS, Lee JS, Kim H, Park JS, Park J, Yoon S. Controlling Surface Structure and Primary Particle Size to Enhance Performance and Reduce Gas Evolution in Lithium- and Manganese-Rich Layered Oxide Cathodes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22048-22054. [PMID: 38632122 DOI: 10.1021/acsami.4c03009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Practical application of lithium- and manganese-rich layered oxide cathodes has been hindered despite their high performance and low cost owing to high gas evolution accompanying capacity loss even in a conservative voltage window. Here, we control the surface structure and primary particle size of lithium- and manganese-rich layered oxide cathodes not only to enhance the electrochemical performance but also to reduce gas evolution. Sulfur-coated Fm3̅m/R3̅m double reduced surface layers and Mo doping dramatically reduce gas evolution, which entails the improvement of electrochemical performance. With the optimization, we prove that it is competitive enough to conventional high-nickel cathodes in the aspects of gas evolution as well as electrochemical performance in the conservative voltage window of 2.5-4.4 V. Our findings provide invaluable insights on the improvement of electrochemical performance and gas evolution properties in lithium- and manganese-rich layered oxide cathodes.
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Affiliation(s)
- Jae Yeol Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jonghyun Choi
- Battery Materials R&D, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Sangwon Lee
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jong Seok Jeong
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Kyung Suk Min
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jae Sang Lee
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Hoeyeon Kim
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Je Seob Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jungwon Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Seokhyun Yoon
- Battery Materials R&D, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
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7
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Chen Z, Zhang W, Liu J, Zhang M, Li S, Pan F. Influence of Li Content on the Topological Inhibition of Oxygen Loss in Li-Rich Cathode Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403307. [PMID: 38630907 DOI: 10.1002/adma.202403307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/15/2024] [Indexed: 04/19/2024]
Abstract
Lithium-rich layer oxide cathodes are promising energy storage materials due to their high energy densities. However, the oxygen loss during cycling limits their practical applications. Here, the essential role of Li content on the topological inhibition of oxygen loss in lithium-rich cathode materials and the relationship between the migration network of oxygen ions and the transition metal (TM) component are revealed. Utilizing first-principles calculations in combination with percolation theory and Monte Carlo simulations, it is found that TM ions can effectively encage the oxidized oxygen species when the TM concentration in TM layer exceeds 5/6, which hinders the formation of a percolating oxygen migration network. This study demonstrates the significance of rational compositional design in lithium-rich cathodes for effectively suppressing irreversible oxygen release and enhancing cathode cycling performance.
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Affiliation(s)
- Zhefeng Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Wentao Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Jiajie Liu
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Mingzheng Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Shunning Li
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Feng Pan
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, P. R. China
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8
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Wang S, Wang L, Sandoval D, Liu T, Zhan C, Amine K. Correlating concerted cations with oxygen redox in rechargeable batteries. Chem Soc Rev 2024; 53:3561-3578. [PMID: 38415295 DOI: 10.1039/d3cs00550j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Rechargeable batteries currently power much of our world, but with the increased demand for electric vehicles (EVs) capable of traveling hundreds of miles on a single charge, new paradigms are necessary for overcoming the limits of energy density, particularly in rechargeable batteries. The emergence of reversible anionic redox reactions presents a promising direction toward achieving this goal; however this process has both positive and negative effects on battery performance. While it often leads to higher capacity, anionic redox also causes several unfavorable effects such as voltage fade, voltage hysteresis, sluggish kinetics, and oxygen loss. However, the introduction of cations with topological chemistry tendencies has created an efficient pathway for achieving long-term oxygen redox with improved kinetics. The cations serve as pillars in the crystal structure and meanwhile can interact with oxygen in ways that affect the oxygen redox process through their impact on the electronic structure. This review delves into a detailed examination of the fundamental physical and chemical characteristics of oxygen redox and elucidates the crucial role that cations play in this process at the atomic and electronic scales. Furthermore, we present a systematic summary of polycationic systems, with an emphasis on their electrochemical performance, in order to provide perspectives on the development of next-generation cathode materials.
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Affiliation(s)
- Shiqi Wang
- Department of Energy Storage Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Lifan Wang
- Department of Energy Storage Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - David Sandoval
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
| | - Tongchao Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
| | - Chun Zhan
- Department of Energy Storage Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
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Zhang M, Qiu L, Hua W, Song Y, Deng Y, Wu Z, Zhu Y, Zhong B, Chou S, Dou S, Xiao Y, Guo X. Formulating Local Environment of Oxygen Mitigates Voltage Hysteresis in Li-Rich Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311814. [PMID: 38194156 DOI: 10.1002/adma.202311814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/05/2024] [Indexed: 01/10/2024]
Abstract
Li-rich cathode materials have emerged as one of the most prospective options for Li-ion batteries owing to their remarkable energy density (>900 Wh kg-1). However, voltage hysteresis during charge and discharge process lowers the energy conversion efficiency, which hinders their application in practical devices. Herein, the fundamental reason for voltage hysteresis through investigating the O redox behavior under different (de)lithiation states is unveiled and it is successfully addressed by formulating the local environment of O2-. In Li-rich Mn-based materials, it is confirmed that there exists reaction activity of oxygen ions at low discharge voltage (<3.6 V) in the presence of TM-TM-Li ordered arrangement, generating massive amount of voltage hysteresis and resulting in a decreased energy efficiency (80.95%). Moreover, in the case where Li 2b sites are numerously occupied by TM ions, the local environment of O2- evolves, the reactivity of oxygen ions at low voltage is significantly inhibited, thus giving rise to the large energy conversion efficiency (89.07%). This study reveals the structure-activity relationship between the local environment around O2- and voltage hysteresis, which provides guidance in designing next-generation high-performance cathode materials.
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Affiliation(s)
- Mengke Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Lang Qiu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Weibo Hua
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yang Song
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yuting Deng
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhenguo Wu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yanfang Zhu
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou, 325035, China
| | - Benhe Zhong
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Shulei Chou
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou, 325035, China
| | - Shixue Dou
- Institute of Energy Materials Science, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Yao Xiao
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou, 325035, China
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
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10
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Li JC, Tang J, Tian J, Cheng C, Liao Y, Hu B, Yu T, Li H, Liu Z, Rao Y, Deng Y, Zhang L, Zhang X, Guo S, Zhou H. From Oxygen Redox to Sulfur Redox: A Paradigm for Li-Rich Layered Cathodes. J Am Chem Soc 2024; 146:7274-7287. [PMID: 38377953 DOI: 10.1021/jacs.3c11569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
The utilization of anionic redox chemistry provides an opportunity to further improve the energy density of Li-ion batteries, particularly for Li-rich layered oxides. However, oxygen-based hosts still suffer from unfavorable structural rearrangement, including the oxygen release and transition metal (TM)-ion migration, in association with the tenuous framework rooted in the ionicity of the TM-O bonding. An intrinsic solution, by using a sulfur-based host with strong TM-S covalency, is proposed here to buffer the lattice distortion upon the highly activating sulfur redox process, and it achieves howling success in stabilizing the host frameworks. Experimental results demonstrate the prolonged preservation of the layered sulfur lattice, especially the honeycomb superlattice, during the Li+ extraction/insertion process in contrast to the large structural degeneration in Li-rich oxides. Moreover, the Li-rich sulfide cathodes exhibited a negligible overpotential of 0.08 V and a voltage drop of 0.13 mV/cycle, while maintaining a substantial reversible capacity upon cycling. These superior electrochemical performances can be unambiguously ascribed to the much shorter trajectories of sulfur in comparison to those of oxygen revealed by molecular dynamics simulations at a large scale (∼30 nm) and a long time scale (∼300 ps) via high-dimensional neural network potentials during the delithiation process. Our findings highlight the importance of stabilizing host frameworks and establish general guidance for designing Li-rich cathodes with durable anionic redox chemistry.
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Affiliation(s)
- Jing-Chang Li
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Jiayi Tang
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
| | - Jiaming Tian
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Chen Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, P. R. China
| | - Yuxin Liao
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Tao Yu
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Haoyu Li
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Zhaoguo Liu
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Yuan Rao
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Yu Deng
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
| | - Liang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, P. R. China
| | - Xiaoyu Zhang
- School of materials science and engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Shaohua Guo
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
- Lab of Power and Energy Storage Batteries, Shenzhen Research Institute of Nanjing University, Shenzhen 518057, P. R. China
| | - Haoshen Zhou
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210093, P. R. China
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11
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Liang P, Qi K, Chen S, Ding X, Wu X, Wu C, Zhu Y. Low-Electronegativity Cationic High-Entropy Doping to Trigger Stable Anion Redox Activity for High-Ni Co-Free Layered Cathodes in Li-Ion Batteries. Angew Chem Int Ed Engl 2024; 63:e202318186. [PMID: 38179819 DOI: 10.1002/anie.202318186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
LiNi0.8 Co0.1 Mn0.1 O2 (NCM-811) exhibits the highest capacity in commercial lithium-ion batteries (LIBs), and the high Ni content (80 %) provides the only route for high energy density. However, the cationic structure instability arisen from the increase of Ni content (>80 %) limits the further increase of the capacity, and inevitable O2 release related to anionic structure instability hinders the utilization of anion redox activity. Here, by comparing various combinations of high-entropy dopants substituted Co element, we propose a low-electronegativity cationic high-entropy doping strategy to fabricate the high-Ni Co-free layered cathode (LiNi0.8 Mn0.12 Al0.02 Ti0.02 Cr0.02 Fe0.02 O2 ) that exhibits much higher capacity and cycling stability. Configurational disorder originated from cationic high-entropy doping in transition metal (TM) layer, anchors the oxidized lattice oxygen ((O2 )n- ) to preserve high (O2 )n- content, triggering the anion redox activity. Electron transfer induced by applying TM dopants with lower electronegativity than that of Co element, increases the electron density of O in TM-O octahedron (TM-O6 ) configuration to reach higher (O2 )n- content, resulting in the higher anion redox activity. With exploring the stabilization effect on both cations and anions of high-entropy doping and low-electronegativity cationic modified anion redox activity, we propose an innovative and variable pathway for rationally tuning the properties of commercial cathodes.
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Affiliation(s)
- Pengrui Liang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kaiwen Qi
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shiyuan Chen
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xuan Ding
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiaojun Wu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Changzheng Wu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yongchun Zhu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
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12
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Cheng C, Yan T, Yuan C, Hu H, Xia X, Shen Y, Zhou X, Zeng P, Zhang L. Regulating Oxygen Redox Chemistry through the Synergistic Effect of Transition-Metal Vacancy and Substitution Element for Layered Oxide Cathodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306695. [PMID: 37857593 DOI: 10.1002/smll.202306695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/27/2023] [Indexed: 10/21/2023]
Abstract
Reversible oxygen redox (OR) is considered as a paradigmatic avenue to boost the energy densities of layered oxide cathodes. However, its activation is largely coupled with the local coordination environment around oxygen, which is usually accompanied with irreversible oxygen release and unfavorable structure distortion. Herein, it is revealed that the synergistic effect of transition-metal (TM) vacancy and substitution element for modulating the OR activity and reversibility of layered Na0.67 MnO2 through multimodal operando synchrotron characterizations and electrochemical investigations. It is disclosed that TM vacancy can not only suppress the complicated phase transition but also stimulate the OR activity by creating nonbonding O 2p states via the Na─O─vacancy configurations. Notably, the substitution element plays a decisive role for regulating the reversibility of vacancy-boosted OR activity: the presence of strong Al─O bonds stabilizes the Mn-O motifs by sharing O with Al in the rigid Mn─O─Al frameworks, which mitigates TM migration and oxygen release induced by TM vacancy, leading to enhanced OR reversibility; while the introduction of weak Zn─O bonds exacerbates TM migration and irreversible oxygen release. This work clarifies the critical role of both TM vacancy and substitution element for regulating the OR chemistry, providing an effective avenue for designing high-performance cathodes employing anionic redox.
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Affiliation(s)
- Chen Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Tianran Yan
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Cheng Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Haolv Hu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Xiao Xia
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Yihao Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Xi Zhou
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Pan Zeng
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
| | - Liang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, China
- Institute for Advanced Study, School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China
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13
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Wang H, Geng X, Hu L, Wang J, Xu Y, Zhu Y, Liu Z, Lu J, Lin Y, He X. Efficient direct repairing of lithium- and manganese-rich cathodes by concentrated solar radiation. Nat Commun 2024; 15:1634. [PMID: 38395918 PMCID: PMC10891061 DOI: 10.1038/s41467-024-45754-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Lithium- and manganese-rich layered oxide cathode materials have attracted extensive interest because of their high energy density. However, the rapid capacity fading and serve voltage decay over cycling make the waste management and recycling of key components indispensable. Herein, we report a facile concentrated solar radiation strategy for the direct recycling of Lithium- and manganese-rich cathodes, which enables the recovery of capacity and effectively improves its electrochemical stability. The phase change from layered to spinel on the particle surface and metastable state structure of cycled material provides the precondition for photocatalytic reaction and thermal reconstruction during concentrated solar radiation processing. The inducement of partial inverse spinel phase is identified after concentrated solar radiation treatment, which strongly enhances the redox activity of transition metal cations and oxygen anion, and reversibility of lattice structure. This study sheds new light on the reparation of spent cathode materials and designing high-performance compositions to mitigate structural degradation.
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Affiliation(s)
- Hailong Wang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin Geng
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Linyu Hu
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jun Wang
- School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yunkai Xu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yudong Zhu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG), Southern University of Science and Technology, No. 1088, Xueyuan Rd, Shenzhen, Guangdong, 518055, China
| | - Zhimeng Liu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Yuanjing Lin
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xin He
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
- College of Electrical Engineering, Sichuan University, Chengdu, 610065, China.
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan, 618307, China.
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14
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Jang HY, Eum D, Cho J, Lim J, Lee Y, Song JH, Park H, Kim B, Kim DH, Cho SP, Jo S, Heo JH, Lee S, Lim J, Kang K. Structurally robust lithium-rich layered oxides for high-energy and long-lasting cathodes. Nat Commun 2024; 15:1288. [PMID: 38346943 PMCID: PMC10861561 DOI: 10.1038/s41467-024-45490-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/24/2024] [Indexed: 02/15/2024] Open
Abstract
O2-type lithium-rich layered oxides, known for mitigating irreversible transition metal migration and voltage decay, provide suitable framework for exploring the inherent properties of oxygen redox. Here, we present a series of O2-type lithium-rich layered oxides exhibiting minimal structural disordering and stable voltage retention even with high anionic redox participation based on the nominal composition. Notably, we observe a distinct asymmetric lattice breathing phenomenon within the layered framework driven by excessive oxygen redox, which includes substantial particle-level mechanical stress and the microcracks formation during cycling. This chemo-mechanical degradation can be effectively mitigated by balancing the anionic and cationic redox capabilities, securing both high discharge voltage (~ 3.43 V vs. Li/Li+) and capacity (~ 200 mAh g-1) over extended cycles. The observed correlation between the oxygen redox capability and the structural evolution of the layered framework suggests the distinct intrinsic capacity fading mechanism that differs from the previously proposed voltage fading mode.
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Affiliation(s)
- Ho-Young Jang
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Donggun Eum
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Jiung Cho
- Seoul Western Center, Korea Basic Science Institute (KBSI), 150 Bugahyeon-ro, Seodaemun-gu, Seoul, 03759, Republic of Korea
| | - Jun Lim
- Pohang Light Source-II, Pohang University of Science and Technology (POSTECH), 80 Jigok-ro 127 beon-gil, Nam-gu, Pohang, 36763, Republic of Korea
| | - Yeji Lee
- Pohang Light Source-II, Pohang University of Science and Technology (POSTECH), 80 Jigok-ro 127 beon-gil, Nam-gu, Pohang, 36763, Republic of Korea
| | - Jun-Hyuk Song
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyeokjun Park
- Interdisciplinary Materials Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon, 34113, Republic of Korea
| | - Byunghoon Kim
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Do-Hoon Kim
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sung-Pyo Cho
- National Center for Inter-University Research Facilities, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sugeun Jo
- Department of Chemistry, College of Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jae Hoon Heo
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sunyoung Lee
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jongwoo Lim
- Department of Chemistry, College of Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Kisuk Kang
- Department of Materials Science and Engineering, Institute for Rechargeable Battery Innovations, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
- Institute of Engineering Research, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
- School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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15
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Shi Y, Geng F, Sun Y, Jiang P, Kan WH, Tong W, Lu X, Qian G, Zhang N, Wei B, Hu B, Cao D, Lu X. Sustainable Anionic Redox by Inhibiting Li Cross-Layer Migration in Na-Based Layered Oxide Cathodes. ACS NANO 2024. [PMID: 38324715 DOI: 10.1021/acsnano.3c11146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The irrational utilization of an anionic electron often accompanies structural degradation with an irreversible cation migration process upon cycling in sodium-layered oxide cathodes. Moreover, the insufficient understanding of the anionic redox involved cation migration makes the design strategies of high energy density electrodes even less effective. Herein, a P3-Na0.67Li0.2Fe0.2Mn0.6O2 (P3-NLFM) cathode is proposed with the in-plane disordered Li distribution after an in-depth remolding of the Li ribbon-ordered P3-Na0.6Li0.2Mn0.8O2 (P3-NLM) layered oxide. The disordered Li sublattice in the transition metal slab of P3-NLFM leads to the dispersed |O2p orbitals, the lowered charge transfer gap, and the suppressed phase transition at high voltages. Then the enhanced Mn-O interaction and electronic stability are disclosed by the crystal orbital Hamilton population (COHP) analysis at high voltage in P3-NLFM. Furthermore, ab initio molecular dynamics (AIMD) simulation suggests the order/disorder of the transition metal layer is highly correlated with the stability of the Li sublattice. The cross-layer migration and loss of Li in P3-NLM are suppressed in P3-NLFM to enable the high reversibility upon cycling. As a result, the P3-NLFM delivers a high capacity of 163 mAh g-1 without oxygen release and an enhanced capacity retention of 81.9% (vs 42.9% in P3-NLM) after 200 cycles, which constitutes a promising approach for sustainable oxygen redox in rechargeable batteries.
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Affiliation(s)
- Yuansheng Shi
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Fushan Geng
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Yang Sun
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Pengfeng Jiang
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Wang Hay Kan
- Spallation Neutron Source Science Center, Dongguan, 523803, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Tong
- Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Xueyi Lu
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Guoyu Qian
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Nan Zhang
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Bin Wei
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xia Lu
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
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16
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Mikheenkova A, Mukherjee S, Hirsbrunner M, Törnblom P, Tai CW, Segre CU, Ding Y, Zhang W, Asmara TC, Wei Y, Schmitt T, Rensmo H, Duda L, Hahlin M. The role of oxygen in automotive grade lithium-ion battery cathodes: an atomistic survey of ageing. JOURNAL OF MATERIALS CHEMISTRY. A 2024; 12:2465-2478. [PMID: 38269086 PMCID: PMC10805348 DOI: 10.1039/d3ta05516g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/06/2023] [Indexed: 01/26/2024]
Abstract
The rising demand for high-performance lithium-ion batteries, pivotal to electric transportation, hinges on key materials like the Ni-rich layered oxide LiNixCoyAlzO2 (NCA) used in cathodes. The present study investigates the redox mechanisms, with particular focus on the role of oxygen in commercial NCA electrodes, both fresh and aged under various conditions (aged cells have performed >900 cycles until a cathode capacity retention of ∼80%). Our findings reveal that oxygen participates in charge compensation during NCA delithiation, both through changes in transition metal (TM)-O bond hybridization and formation of partially reversible O2, the latter occurs already below 3.8 V vs. Li/Li+. Aged NCA material undergoes more significant changes in TM-O bond hybridization when cycling above 50% SoC, while reversible O2 formation is maintained. Nickel is found to be redox active throughout the entire delithiation and shows a more classical oxidation state change during cycling with smaller changes in the Ni-O hybridization. By contrast, Co redox activity relies on a stronger change in Co-O hybridization, with only smaller Co oxidation state changes. The Ni-O bond displays an almost twice as large change in its bond length on cycling as the Co-O bond. The Ni-O6 octahedra are similar in size to the Co-O6 octahedra in the delithiated state, but are larger in the lithiated state, a size difference that increases with battery ageing. These contrasting redox activities are reflected directly in structural changes. The NCA material exhibits the formation of nanopores upon ageing, and a possible connection to oxygen redox activity is discussed. The difference in interaction of Ni and Co with oxygen provides a key understanding of the mechanism and the electrochemical instability of Ni-rich layered transition metal oxide electrodes. Our research specifically highlights the significance of the role of oxygen in the electrochemical performance of electric-vehicle-grade NCA electrodes, offering important insights for the creation of next-generation long-lived lithium-ion batteries.
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Affiliation(s)
- Anastasiia Mikheenkova
- Ångström Laboratory, Department of Chemistry, Uppsala University SE 751 21 Uppsala Sweden
| | - Soham Mukherjee
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
| | - Moritz Hirsbrunner
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
| | - Pontus Törnblom
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University Stockholm 10691 Sweden
| | - Carlo U Segre
- Department of Physics and CSRRI, Illinois Institute of Technology Chicago IL 60616 USA
| | - Yujia Ding
- Department of Physics and CSRRI, Illinois Institute of Technology Chicago IL 60616 USA
| | - Wenliang Zhang
- Laboratory for Condensed Matter, Paul Scherrer Institute Forschungsstrasse 111 Villigen PSI 5232 Switzerland
| | - Teguh Citra Asmara
- Laboratory for Condensed Matter, Paul Scherrer Institute Forschungsstrasse 111 Villigen PSI 5232 Switzerland
| | - Yuan Wei
- Laboratory for Condensed Matter, Paul Scherrer Institute Forschungsstrasse 111 Villigen PSI 5232 Switzerland
| | - Thorsten Schmitt
- Laboratory for Condensed Matter, Paul Scherrer Institute Forschungsstrasse 111 Villigen PSI 5232 Switzerland
| | - Håkan Rensmo
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
| | - Laurent Duda
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
| | - Maria Hahlin
- Ångström Laboratory, Department of Chemistry, Uppsala University SE 751 21 Uppsala Sweden
- Ångström Laboratory, Department of Physics and Astronomy, Uppsala University SE 751 21 Uppsala Sweden
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17
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Xu Z, Guo X, Song W, Wang J, Qin T, Yuan Y, Lu J. Sulfur-Assisted Surface Modification of Lithium-Rich Manganese-Based Oxide toward High Anionic Redox Reversibility. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2303612. [PMID: 37715450 DOI: 10.1002/adma.202303612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/27/2023] [Indexed: 09/17/2023]
Abstract
Energy storage via anionic redox provides extra capacity for lithium-rich manganese-based oxide cathodes at high voltage but causes gradual structural collapse and irreversible capacity loss with generation of On - (0 ≤ n < 2) species upon deep oxidation. Herein, the stability and reversibility of anionic redox reactions are enhanced by a simple sulfur-assisted surface modification method, which not only modulates the material's energy band allowing feasible electron release from both bonding and antibonding bands, but also traps the escaping On - via an as-constructed SnS2- x - σ Oy coating layer and return them to the host lattice upon discharge. The regulation of anionic redox inhibits the irreversible structural transformation and parasitic reactions, maintaining the specific capacity retention of as-modified cathode up to 94% after 200 cycles at 100 mA g-1 , along with outstanding voltage stability. The reported strategy incorporating energy band modulation and oxygen trapping is promising for the design and advancement of other cathodes storing energy through anion redox.
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Affiliation(s)
- Zhou Xu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xingzhong Guo
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, 311200, China
| | - Wenjun Song
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Junzhang Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Tengteng Qin
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yifei Yuan
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Quzhou Institute of Power Battery and Grid Energy Storage, Quzhou, Zhejiang, 324000, China
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18
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Chen H, Ma J, Liu F, Yao M. Dual Strategies with Anion/Cation Co-Doping and Lithium Carbonate Coating to Enhance the Electrochemical Performance of Lithium-Rich Layered Oxides. Chemistry 2023; 29:e202302569. [PMID: 37792289 DOI: 10.1002/chem.202302569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/10/2023] [Accepted: 09/29/2023] [Indexed: 10/05/2023]
Abstract
Lithium-rich layered oxides (LLOs, Li1.2 Mn0.54 Ni0.13 Co0.13 O2 ) are widely used as cathode materials for lithium-ion batteries due to its high specific capacity, high operating voltage and low cost. However, the LLOs are faced with rapid decay of charge/discharge capacity and voltage, as well as interface side reactions, which limit its electrochemical performance. Herein, the dual strategies of sulfite/sodium ion co-doping and lithium carbonate coating were used to improve it. It founds that modified LLOs achieve 88.74 % initial coulomb efficiency, 295.3 mAh g-1 first turn discharge capacity, in addition to 216.9 mAh g-1 at 1 C, and 87.23 % capacity retention after 100 cycles. Mechanism research indicated that the excellent electrochemical performance benefits from the doping of both Na+ and SO3 2- , and it could significantly reduce the migration energy barrier of Li+ and promote Li+ migration. Meanwhile, anion and cation are co-doped greatly reduces the band gap of LLOs and increase its electrical conductivity, and its binding effect on Li+ is weakened, making it easier for Li+ to shuttle through the material. In addition, the lithium carbonate coating significantly inhibits the occurrence of interfacial side reactions of LLOs. This work provides a theoretical basis and practical guidance for the further development of LLOs with higher electrochemical performance.
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Affiliation(s)
- Huai Chen
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Jun Ma
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Fei Liu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
| | - Mengqin Yao
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
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19
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Wang Y, Outka A, Takele WM, Avdeev M, Sainio S, Liu R, Kee V, Choe W, Raji-Adefila B, Nordlund D, Zhou S, Kan WH, Habteyes TG, Chen D. Over-Stoichiometric Metastabilization of Cation-Disordered Rock Salts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2306396. [PMID: 37906379 DOI: 10.1002/adma.202306396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/30/2023] [Indexed: 11/02/2023]
Abstract
Cation-disordered rock salts (DRXs) are well known for their potential to realize the goal of achieving scalable Ni- and Co-free high-energy-density Li-ion batteries. Unlike in most cathode materials, the disordered cation distribution may lead to more factors that control the electrochemistry of DRXs. An important variable that is not emphasized by research community is regarding whether a DRX exists in a more thermodynamically stable form or a more metastable form. Moreover, within the scope of metastable DRXs, over-stoichiometric DRXs, which allow relaxation of the site balance constraint of a rock salt structure, are particularly underexplored. In this work, these findings are reported in locating a generally applicable approach to "metastabilize" thermodynamically stable Mn-based DRXs to metastable ones by introducing Li over-stoichiometry. The over-stoichiometric metastabilization greatly stimulates more redox activities, enables better reversibility of Li deintercalation/intercalation, and changes the energy storage mechanism. The metastabilized DRXs can be transformed back to the thermodynamically stable form, which also reverts the electrochemical properties, further contrasting the two categories of DRXs. This work enriches the structural and compositional space of DRX families and adds new pathways for rationally tuning the properties of DRX cathodes.
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Affiliation(s)
- You Wang
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Alexandra Outka
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Wassie Mersha Takele
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Maxim Avdeev
- Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, 2234, Australia
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Sami Sainio
- SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Rui Liu
- College of Pharmacy, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Vanessa Kee
- Nanoscience & Biomedical Engineering, South Dakota School of Mines & Technology, Rapid City, SD, 57701, USA
| | - Wonu Choe
- Albuquerque Institute for Math & Science, Albuquerque, NM, 87106, USA
| | - Basirat Raji-Adefila
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Dennis Nordlund
- SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Shan Zhou
- Nanoscience & Biomedical Engineering, South Dakota School of Mines & Technology, Rapid City, SD, 57701, USA
| | - Wang Hay Kan
- Spallation Neutron Source Science Center, Dongguan, 523803, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Terefe G Habteyes
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Dongchang Chen
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM, 87131, USA
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20
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Yang Y, Gao C, Luo T, Song J, Yang T, Wang H, Zhang K, Zuo Y, Xiao W, Jiang Z, Chen T, Xia D. Unlocking the Potential of Li-Rich Mn-Based Oxides for High-Rate Rechargeable Lithium-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2307138. [PMID: 37689984 DOI: 10.1002/adma.202307138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/29/2023] [Indexed: 09/11/2023]
Abstract
Lithium-rich Mn-based oxides have gained significant attention worldwide as potential cathode materials for the next generation of high-energy density lithium-ion batteries. Nonetheless, the inferior rate capability and voltage decay issues present formidable challenges. Here, a Li-rich material equipped with quasi-three-dimensional (quasi-3D) Li-ion diffusion channels is initially synthesized by introducing twin structures with high Li-ion diffusion coefficients into the crystal and constructing a "bridge" between different Li-ion diffusion tunnels. The as-prepared material exhibits monodispersed micron-sized primary particles (MP), delivering a specific capacity of 303 mAh g-1 at 0.1 C and an impressive capacity of 253 mAh g-1 at 1 C. More importantly, the twin structure also serves as a "breakwater" to inhibit the migration of Mn ions and improve the overall structural stability, leading to cycling stability with 85% capacity retention at 1 C after 200 cycles. The proposed strategy of constructing quasi-3D channels in the layered Li-rich cathodes will open up new avenues for the research and development of other layered oxide cathodes, with potential applications in industry.
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Affiliation(s)
- Yali Yang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Chuan Gao
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Tie Luo
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jin Song
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Tonghuan Yang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Hangchao Wang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Kun Zhang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yuxuan Zuo
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Wukun Xiao
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zewen Jiang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Tao Chen
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Dingguo Xia
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
- Institute of Carbon Neutrality, Peking University, Beijing, 100871, P. R. China
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21
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Abulikemu A, Matsunaga T, Shi X, Kumar M, Thakur N, Takami T, Yamamoto K, Uchiyama T, Watanabe T, Inada M, Uchimoto Y. Improving the Cyclic Reversibility of Layered Li-Rich Cathodes by Combining Oxygen Vacancies and Surface Fluorination. ACS APPLIED MATERIALS & INTERFACES 2023; 15:54419-54431. [PMID: 37967338 DOI: 10.1021/acsami.3c11511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Layered-type Li-rich cathode materials have attracted significant attention for next-generation Li-ion batteries, but the advantage of their high capacity is eclipsed by their poor reversibility upon cycling. Irreversible oxygen redox activity and surface degradation have been deemed as the root cause and direct cause for their poor performance, respectively. We attempted to suppress surface degradation by inserting fluoride ions up to some depth on the surface. By fluorination with NH4HF2 after introducing a significant amount of oxygen vacancies in layered Li1.2Ni0.2Co0.2Mn0.4O2 by using CaH2 as a reducing agent, the reversible capacity reached 268 mAh/g, and the capacity retention after 100 cycles was about 99%. The scanning transmission electron microscopy-electron energy loss spectroscopy (STEM-EELS) technique revealed that, in contrast to directly fluorinated samples, our materials exhibit deeper fluorine signals besides surface signals, and hard X-ray photoelectron spectroscopy (HAXPES) patterns show ionic and covalent fluorine coordination. These results indicate that the combination of oxygen deficiency introduction and surface fluorination allows some F- ions to occupy near-surface oxygen vacancy sites rather than forming only a LiF layer on the surface, suggesting a new strategy to modify cathode materials for lithium-ion batteries.
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Affiliation(s)
- Aierxiding Abulikemu
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Toshiyuki Matsunaga
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Xian Shi
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Mukesh Kumar
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Neha Thakur
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Tsuyoshi Takami
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kentaro Yamamoto
- Faculty of Engineering, Nara Women's University, Kita-uoya Nishimachi, Nara 630-8506, Japan
| | - Tomoki Uchiyama
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Toshiki Watanabe
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Miki Inada
- Center of Advanced Instrumental Analysis, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshiharu Uchimoto
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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22
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Feng J, Chen Z, Zhou W, Hao Z. Origin and characterization of the oxygen loss phenomenon in the layered oxide cathodes of Li-ion batteries. MATERIALS HORIZONS 2023; 10:4686-4709. [PMID: 37593917 DOI: 10.1039/d3mh00780d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Li-ion batteries have been widely applied in the field of energy storage due to their high energy density and environment friendliness. Owing to their high capacity of ∼200 mA h g-1 and high cutoff voltage of ∼4.6 V vs. Li+/Li, layered lithium transition metal oxides (LLMOs) stand out among the numerous cathode materials. However, the oxygen loss of LLMO cathodes during cycling hampers the further development LLMO cathode-based Li-ion batteries by inducing a dramatic decay of electrochemical performance and safety issues. In this regard, the oxygen loss phenomenon of LLMO cathodes has attracted attention, and extensive efforts have been devoted to investigating the origins of oxygen loss in LLMO cathodes by various characterization methods. In this review, a comprehensive overview of the main causes of oxygen loss is presented, including the state of charge, side reactions with electrolytes, and the thermal instability of LLMO cathodes. The characterization methods used in the scope are introduced and summarized based on their functional principles. It is hoped that the review can inspire a deeper consideration of the utilization of characterization techniques in detecting the oxygen loss of LLMO cathodes, paving a new pathway for developing advanced LLMO cathodes with better cycling stability and practical capabilities.
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Affiliation(s)
- Junrun Feng
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China.
| | - Zhuo Chen
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China.
| | - Weihua Zhou
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China.
| | - Zhangxiang Hao
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China.
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23
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Kang S, Choi D, Lee H, Choi B, Kang YM. A Mechanistic Insight into the Oxygen Redox of Li-Rich Layered Cathodes and their Related Electronic/Atomic Behaviors Upon Cycling. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211965. [PMID: 36920413 DOI: 10.1002/adma.202211965] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Li-rich cathodes are extensively investigated as their energy density is superior to Li stoichiometric cathode materials. In addition to the transition metal redox, this intriguing electrochemical performance originates from the redox reaction of the anionic sublattice. This new redox process, the so-called anionic redox or, more directly, oxygen redox in the case of oxides, almost doubles the energy density of Li-rich cathodes compared to conventional cathodes. Numerous theoretical and experimental investigations have thoroughly established the current understanding of the oxygen redox of Li-rich cathodes. However, different reports are occasionally contradictory, indicating that current knowledge remains incomplete. Moreover, several practical issues still hinder the real-world application of Li-rich cathodes. As these issues are related to phenomena resulting from the electronic to atomic evolution induced by unstable oxygen redox, a fundamental multiscale understanding is essential for solving the problem. In this review, the current mechanistic understanding of oxygen redox, the origin of the practical problems, and how current studies tackle the issues are summarized.
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Affiliation(s)
- Seongkoo Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Dayeon Choi
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hakwoo Lee
- Department of Battery-Smart Factory, Korea University, Seoul, 02841, Republic of Korea
| | - Byungjin Choi
- Cathode Materials R&D Center, LG Chem, Daejeon, 34122, Republic of Korea
| | - Yong-Mook Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Department of Battery-Smart Factory, Korea University, Seoul, 02841, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
- Energy Storage Research Center, Clean Energy Research Division, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
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24
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Wang L, Shen Y, Liu Y, Zeng P, Meng J, Liu T, Zhang L. Electrochemical Restoration of Battery Materials Guided by Synchrotron Radiation Technology for Sustainable Lithium-Ion Batteries. SMALL METHODS 2023; 7:e2201658. [PMID: 37199184 DOI: 10.1002/smtd.202201658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/18/2023] [Indexed: 05/19/2023]
Abstract
Lithium-ion batteries (LIBs) have been ubiquitous in modern society, especially in the fields of electronic devices, electric vehicles and grid storage, while raising concerns about a tremendous number of spent batteries in the next five to ten years. As environmental awareness and resource security is gaining increasingly extensive attention, how to effectively deal with spent LIBs has become a challenging issue academically and industrially. Accordingly, the development of battery recycling has surfaced as a highly researched topic in the battery community. Recently, the structural and electrochemical restoration of recycled electrode materials have been proposed as a non-destructive method to save more energy and chemical agents compared with mature metallurgical methods. Such a refurbishment process of electrode materials is also regarded as a reverse process of their degradation in the working condition. Notably, synchrotron radiation technology, which is previously applied to diagnose battery degrade, has started to play major roles in gaining more insight into the structural restoration of electrode materials. Here, the contribution of synchrotron radiation technology to reveal the underlying degradation and regeneration mechanisms of LIBs cathodes is highlighted, providing a theoretical basis and guidance for the direct recycling and reuse of degraded cathodes.
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Affiliation(s)
- Lei Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yihao Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yuanlong Liu
- Zhejiang Tianneng New Materials Co. Ltd., Huzhou, Zhejiang, 313103, China
| | - Pan Zeng
- Institute for Advanced Study, School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China
| | - Junxia Meng
- School of Physics and Electronics, Gannan Normal University, Ganzhou, 341000, China
| | - Tiefeng Liu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Liang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu, 215123, China
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25
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Song JH, Yu S, Kim B, Eum D, Cho J, Jang HY, Park SO, Yoo J, Ko Y, Lee K, Lee MH, Kang B, Kang K. Slab gliding, a hidden factor that induces irreversibility and redox asymmetry of lithium-rich layered oxide cathodes. Nat Commun 2023; 14:4149. [PMID: 37438468 DOI: 10.1038/s41467-023-39838-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/27/2023] [Indexed: 07/14/2023] Open
Abstract
Lithium-rich layered oxides, despite their potential as high-energy-density cathode materials, are impeded by electrochemical performance deterioration upon anionic redox. Although this deterioration is believed to primarily result from structural disordering, our understanding of how it is triggered and/or occurs remains incomplete. Herein, we propose a theoretical picture that clarifies the irreversible transformation and redox asymmetry of lithium-rich layered oxides by introducing a series of global and local dynamic structural evolution processes involving slab gliding and transition-metal migration. We show that slab gliding plays a key role in trigger/initiating the structural disordering and consequent degradation of the anionic redox reaction. We further reveal that the 'concerted disordering mechanism' of slab gliding and transition-metal migration produces spontaneously irreversible/asymmetric lithiation and de-lithiation pathways, causing irreversible structural deterioration and the asymmetry of the anionic redox reaction. Our findings suggest slab gliding as a crucial, yet underexplored, method for achieving a reversible anionic redox reaction.
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Affiliation(s)
- Jun-Hyuk Song
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
- LiB Materials Research Group, Research Institute of Industrial Science & Technology (RIST), 100 Songdogwahak-ro, Yeonsu-gu, Incheon, Republic of Korea
| | - Seungju Yu
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Byunghoon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Donggun Eum
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Jiung Cho
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyeon-ro, Seoul, 03759, Republic of Korea
- Department of Advanced Materials Engineering, Chung-Ang University, 4726, Seodong-daero, Daedoek-myeon, Anseong-si, Gyeonggi-do, 17546, Republic of Korea
| | - Ho-Young Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Sung-O Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Jaekyun Yoo
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Youngmin Ko
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Kyeongsu Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Myeong Hwan Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Byungwook Kang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Kisuk Kang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
- Institute of Engineering Research, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul, 08826, Republic of Korea.
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26
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Li J, Xu H, Li J, Chen X, Zhang Y, Liu W, Li W, Han C, An S, Wang X, Qiu X. Construction of Inorganic-Rich Cathode Electrolyte Interphase on Co-Free Cathodes. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37220156 DOI: 10.1021/acsami.3c02553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Lithium-rich layered oxides (LRLOs), with the chemical formula of xLi2MnO3·(1 - x)LiMO2, delivering higher specific discharge capacity, are potential cathode materials for lithium-ion batteries. However, the dissolution of transition metal ions and the instability of the cathode-electrolyte interphase (CEI) hinder the commercial application of LRLOs. Herein, a simple and affordable method is developed for the construction of a robust CEI layer by quenching a kind of cobalt-free LRLO, Li1.2Ni0.15Fe0.1Mn0.55O2 (denoted as NFM), in 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether solvent. This robust CEI, with well-distributed LiF, TMFx, and partial organic component CFx, performs as a physical barrier to prevent NFM from direct contact with the electrolyte, suppresses the oxygen release, and ensures the CEI layer stability. The customized CEI with LiF and TMFx-rich phase considerably enhances the NFM cycle stability and the initial coulomb efficiency and inhibits voltage fading. This work provides a valuable strategy for designing stable interface chemistry on the cathode of lithium-ion batteries.
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Affiliation(s)
- Jinxing Li
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 100083 Beijing, China
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Hanying Xu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Jie Li
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Xinping Chen
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Yujuan Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Wei Liu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Wenting Li
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Ce Han
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Shengli An
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 100083 Beijing, China
- School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Xindong Wang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 100083 Beijing, China
| | - Xinping Qiu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, 100084 Beijing, China
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27
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Sasaki S, Giri S, Cassidy SJ, Dey S, Batuk M, Vandemeulebroucke D, Cibin G, Smith RI, Holdship P, Grey CP, Hadermann J, Clarke SJ. Anion redox as a means to derive layered manganese oxychalcogenides with exotic intergrowth structures. Nat Commun 2023; 14:2917. [PMID: 37217479 DOI: 10.1038/s41467-023-38489-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 05/03/2023] [Indexed: 05/24/2023] Open
Abstract
Topochemistry enables step-by-step conversions of solid-state materials often leading to metastable structures that retain initial structural motifs. Recent advances in this field revealed many examples where relatively bulky anionic constituents were actively involved in redox reactions during (de)intercalation processes. Such reactions are often accompanied by anion-anion bond formation, which heralds possibilities to design novel structure types disparate from known precursors, in a controlled manner. Here we present the multistep conversion of layered oxychalcogenides Sr2MnO2Cu1.5Ch2 (Ch = S, Se) into Cu-deintercalated phases where antifluorite type [Cu1.5Ch2]2.5- slabs collapsed into two-dimensional arrays of chalcogen dimers. The collapse of the chalcogenide layers on deintercalation led to various stacking types of Sr2MnO2Ch2 slabs, which formed polychalcogenide structures unattainable by conventional high-temperature syntheses. Anion-redox topochemistry is demonstrated to be of interest not only for electrochemical applications but also as a means to design complex layered architectures.
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Affiliation(s)
- Shunsuke Sasaki
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000, Nantes, France
| | - Souvik Giri
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Simon J Cassidy
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Sunita Dey
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Maria Batuk
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Daphne Vandemeulebroucke
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Giannantonio Cibin
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Ronald I Smith
- The ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Philip Holdship
- Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, UK
| | - Clare P Grey
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Joke Hadermann
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Simon J Clarke
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK.
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28
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Yang P, Zhang S, Wei Z, Guan X, Xia J, Huang D, Xing Y, He J, Wen B, Liu B, Xu H. A Gradient Doping Strategy toward Superior Electrochemical Performance for Li-Rich Mn-Based Cathode Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207797. [PMID: 36808233 DOI: 10.1002/smll.202207797] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/04/2023] [Indexed: 05/18/2023]
Abstract
Lithium-rich layered oxides (LLOs) are concerned as promising cathode materials for next-generation lithium-ion batteries due to their high reversible capacities (larger than 250 mA h g-1 ). However, LLOs suffer from critical drawbacks, such as irreversible oxygen release, structural degradation, and poor reaction kinetics, which hinder their commercialization. Herein, the local electronic structure is tuned to improve the capacity energy density retention and rate performance of LLOs via gradient Ta5+ doping. As a result, the capacity retention elevates from 73% to above 93%, and the energy density rises from 65% to above 87% for LLO with modification at 1 C after 200 cycles. Besides, the discharge capacity for the Ta5+ doped LLO at 5 C is 155 mA h g-1 , while it is only 122 mA h g-1 for bare LLO. Theoretical calculations reveal that Ta5+ doping can effectively increase oxygen vacancy formation energy, thus guaranteeing the structure stability during the electrochemical process, and the density of states results indicate that the electronic conductivity of the LLOs can be boosted significantly at the same time. This strategy of gradient doping provides a new avenue to improve the electrochemical performance of the LLOs by modulating the local structure at the surface.
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Affiliation(s)
- Puheng Yang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
- School of Physics Science and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China
| | - Shichao Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Ziwei Wei
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Xianggang Guan
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Jun Xia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Danyang Huang
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Yalan Xing
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Jia He
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Bohua Wen
- Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Bin Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, P. R. China
| | - Huaizhe Xu
- School of Physics Science and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China
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29
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Liao Y, Feng H, Yang Q, Shen M, Jiang Y, Li C, Zhao C, Geng F, Hu B. Oxygen Redox Activation at Initial Cycle to Improve Cycling Stability for the Na 0.83Li 0.12Ni 0.22Mn 0.66O 2 System. ACS APPLIED MATERIALS & INTERFACES 2023; 15:10709-10717. [PMID: 36792937 DOI: 10.1021/acsami.2c21573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Oxygen reactions are commonly used to increase the specific capacities of Na-ion batteries, especially for the NaxLiyTMO2 systems. Previous research focused on improving the stabilities of oxygen reactions to enhance cycling stability. However, the effects of oxygen reactions on the distribution of Li ions in the transition metal (TM) and alkali metal (AM) layers for the Na-ion battery are relatively unexplored and rarely employed. In this study, we employ a layered P2-Na0.83Li0.12Ni0.22Mn0.66O2 cathode to control the effects of the oxygen reactions on the distributions of Li ions in two layers. With oxygen-redox-activation-at-first-cycle (ORAFIC)-cycling, which cycled first within 2.0-4.6 V to activate oxygen redox and then cycled within 2.0-4.2 V, this cathode exhibited better cycling stability compared to low-voltage (LV)-cycling of 2.0-4.2 V and high-voltage (HV)-cycling of 2.0-4.6 V. Using nuclear magnetic resonance spectroscopy, electron paramagnetic resonance, inductively coupled plasma experiments, and X-ray diffraction, it is confirmed that ORAFIC-cycling stabilizes the crystal structure and distributions of Li ions in the TM and AM layers and reduces Li-ion loss, thus improving the cycling stability.
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Affiliation(s)
- Yuxin Liao
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Hui Feng
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Qi Yang
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Ming Shen
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Yu Jiang
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Chao Li
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Chenxuan Zhao
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Fushan Geng
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
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30
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Huang J, Ouyang B, Zhang Y, Yin L, Kwon DH, Cai Z, Lun Z, Zeng G, Balasubramanian M, Ceder G. Inhibiting collective cation migration in Li-rich cathode materials as a strategy to mitigate voltage hysteresis. NATURE MATERIALS 2023; 22:353-361. [PMID: 36702887 DOI: 10.1038/s41563-022-01467-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/16/2022] [Indexed: 06/18/2023]
Abstract
Lithium-rich cathodes are promising energy storage materials due to their high energy densities. However, voltage hysteresis, which is generally associated with transition metal migration, limits their energy efficiency and implementation in practical devices. Here we reveal that voltage hysteresis is related to the collective migration of metal ions, and that isolating the migration events from each other by creating partial disorder can create high-capacity reversible cathode materials, even when migrating transition metal ions are present. We demonstrate this on a layered Li-rich chromium manganese oxide that in its fully ordered state displays a substantial voltage hysteresis (>2.5 V) associated with collective transition metal migration into Li layers, but can be made to achieve high capacity (>360 mAh g-1) and energy density (>1,100 Wh kg-1) when the collective migration is perturbed by partial disorder. This study demonstrates that partially cation-disordered cathode materials can accommodate a high level of transition metal migration, which broadens our options for redox couples to those of mobile cations.
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Affiliation(s)
- Jianping Huang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Bin Ouyang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Yaqian Zhang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Liang Yin
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - Deok-Hwang Kwon
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Zijian Cai
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Zhengyan Lun
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Guobo Zeng
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | | | - Gerbrand Ceder
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
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31
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Cao Y, Xiao M, Sun X, Dong W, Huang F. Recent Advances on High-Capacity Sodium Manganese-Based Oxide Cathodes for Sodium-ion Batteries. Chemistry 2023; 29:e202202997. [PMID: 36349981 DOI: 10.1002/chem.202202997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
Abstract
Sodium manganese-based oxides (NMO) are attracting huge attention as safe and cost-effective cathode materials for sodium-ion batteries (SIBs). To date, one of the most important challenges of NMO-based cathodes is the relatively low capacity. Therefore, it is of great significance to develop high-capacity NMO-based cathodes. Great efforts have been made to enhance the reversible capacity of NMO-based cathodes, achieving considerable progress not only on electrochemical performance, but also the mechanism of massive sodium ion storage. In this paper, the structure and sodium storage mechanism for typical phases of NMO are reviewed, including P2, P3, O3, tunnel-type, and spinel-type NMO-based cathodes. Strategies for high-capacity NMO-based cathodes, such as cationic substitution, anion redox activation, etc are introduced in detail. Last but not least, the future opportunities and challenges for high-capacity NMO-based cathode are prospected.
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Affiliation(s)
- Yuge Cao
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049 (P. R. China), University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, P. R. China
| | - Meijing Xiao
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049 (P. R. China), University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, P. R. China
| | - Xuzhou Sun
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049 (P. R. China), University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, P. R. China
| | - Wujie Dong
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
| | - Fuqiang Huang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049 (P. R. China), University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, P. R. China.,State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 202 Chengfu Road, Beijing, 100871, P. R. China
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32
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Li Q, Liang Q, Zhang H, Jiao S, Zhuo Z, Wang J, Li Q, Zhang JN, Yu X. Unveiling the High-valence Oxygen Degradation Across the Delithiated Cathode Surface. Angew Chem Int Ed Engl 2023; 62:e202215131. [PMID: 36471651 DOI: 10.1002/anie.202215131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Charge compensation on anionic redox reaction (ARR) has been promising to realize extra capacity beyond transition metal redox in battery cathodes. The practical development of ARR capacity has been hindered by high-valence oxygen instability, particularly at cathode surfaces. However, the direct probe of surface oxygen behavior has been challenging. Here, the electronic states of surface oxygen are investigated by combining mapping of resonant Auger electronic spectroscopy (mRAS) and ambient pressure X-ray photoelectron spectroscopy (APXPS) on a model LiCoO2 cathode. The mRAS verified that no high-valence oxygen can sustain at cathode surfaces, while APXPS proves that cathode electrolyte interphase (CEI) layer evolves and oxidizes upon oxygen gas contact. This work provides valuable insights into the high-valence oxygen degradation mode across the interface. Oxygen stabilization from surface architecture is proven a prerequisite to the practical development of ARR active cathodes.
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Affiliation(s)
- Qinghao Li
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao, 266071, China.,Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qi Liang
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao, 266071, China
| | - Hui Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Sichen Jiao
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zengqing Zhuo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Junyang Wang
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qiang Li
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao, 266071, China
| | - Jie-Nan Zhang
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiqian Yu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
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33
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Dong Y, Li J. Oxide Cathodes: Functions, Instabilities, Self Healing, and Degradation Mitigations. Chem Rev 2023; 123:811-833. [PMID: 36398933 DOI: 10.1021/acs.chemrev.2c00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Recent progress in high-energy-density oxide cathodes for lithium-ion batteries has pushed the limits of lithium usage and accessible redox couples. It often invokes hybrid anion- and cation-redox (HACR), with exotic valence states such as oxidized oxygen ions under high voltages. Electrochemical cycling under such extreme conditions over an extended period can trigger various forms of chemical, electrochemical, mechanical, and microstructural degradations, which shorten the battery life and cause safety issues. Mitigation strategies require an in-depth understanding of the underlying mechanisms. Here we offer a systematic overview of the functions, instabilities, and peculiar materials behaviors of the oxide cathodes. We note unusual anion and cation mobilities caused by high-voltage charging and exotic valences. It explains the extensive lattice reconstructions at room temperature in both good (plasticity and self-healing) and bad (phase change, corrosion, and damage) senses, with intriguing electrochemomechanical coupling. The insights are critical to the understanding of the unusual self-healing phenomena in ceramics (e.g., grain boundary sliding and lattice microcrack healing) and to novel cathode designs and degradation mitigations (e.g., suppressing stress-corrosion cracking and constructing reactively wetted cathode coating). Such mixed ionic-electronic conducting, electrochemically active oxides can be thought of as almost "metalized" if at voltages far from the open-circuit voltage, thus differing significantly from the highly insulating ionic materials in electronic transport and mechanical behaviors. These characteristics should be better understood and exploited for high-performance energy storage, electrocatalysis, and other emerging applications.
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Affiliation(s)
- Yanhao Dong
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Ju Li
- Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
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34
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Understanding the Impact of Fe‐Doping on the Structure and Battery Performance of a Co‐Free Li‐Rich Layered Cathodes. ChemElectroChem 2023. [DOI: 10.1002/celc.202201072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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35
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Lin T, Seaby T, Hu Y, Ding S, Liu Y, Luo B, Wang L. Understanding and Control of Activation Process of Lithium-Rich Cathode Materials. ELECTROCHEM ENERGY R 2022. [DOI: 10.1007/s41918-022-00172-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
AbstractLithium-rich materials (LRMs) are among the most promising cathode materials toward next-generation Li-ion batteries due to their extraordinary specific capacity of over 250 mAh g−1 and high energy density of over 1 000 Wh kg−1. The superior capacity of LRMs originates from the activation process of the key active component Li2MnO3. This process can trigger reversible oxygen redox, providing extra charge for more Li-ion extraction. However, such an activation process is kinetically slow with complex phase transformations. To address these issues, tremendous effort has been made to explore the mechanism and origin of activation, yet there are still many controversies. Despite considerable strategies that have been proposed to improve the performance of LRMs, in-depth understanding of the relationship between the LRMs’ preparation and their activation process is limited. To inspire further research on LRMs, this article firstly systematically reviews the progress in mechanism studies and performance improving attempts. Then, guidelines for activation controlling strategies, including composition adjustment, elemental substitution and chemical treatment, are provided for the future design of Li-rich cathode materials. Based on these investigations, recommendations on Li-rich materials with precisely controlled Mn/Ni/Co composition, multi-elemental substitution and oxygen vacancy engineering are proposed for designing high-performance Li-rich cathode materials with fast and stable activation processes.
Graphical abstract
The “Troika” of composition adjustment, elemental substitution, and chemical treatment can drive the Li-rich cathode towards stabilized and accelerated activation.
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36
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Zhao E, Wu K, Zhang Z, Fu Z, Jiang H, Ke Y, Yin W, Ikeda K, Otomo T, Wang F, Zhao J. Quantifying the Anomalous Local and Nanostructure Evolutions Induced by Lattice Oxygen Redox in Lithium-Rich Cathodes. SMALL METHODS 2022; 6:e2200740. [PMID: 36180397 DOI: 10.1002/smtd.202200740] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/10/2022] [Indexed: 06/16/2023]
Abstract
Due to their accessible lattice oxygen redox (l-OR) at high voltages, Li-rich layered transition metal (TM) oxides have shown promising potential as candidate cathodes for high-energy-density Li-ion batteries. However, this l-OR process is also associated with unusual electrochemical issues such as voltage hysteresis and long-term voltage decay. The structure response mechanism to the l-OR behavior also remains unclear, hindering rational structure optimizations that would enable practical Li-rich cathodes. Here, this study reveals a strong coupling between l-OR and structure dynamic evolutions, as well as their effects on the electrochemical properties. Using the technique of neutron total scattering with pair distribution function analysis and small-angle neutron scattering, this study quantifies the local TM migration and formation of nanopores that accompany the l-OR. These experiments demonstrate the causal relationships among l-OR, the local/nanostructure evolutions, and the unusual electrochemistry. The TM migration triggered by the l-OR can change local oxygen coordination environments, which results in voltage hysteresis. Coupled with formed oxygen vacancies, it will accelerate the formation of nanopores, inducing a phase transition, and leading to irreversible capacity and long-cycling voltage fade.
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Affiliation(s)
- Enyue Zhao
- Songshan Lake Materials Laboratory, Dongguan, 523808, P. R. China
| | - Kang Wu
- Songshan Lake Materials Laboratory, Dongguan, 523808, P. R. China
| | - Zhigang Zhang
- Songshan Lake Materials Laboratory, Dongguan, 523808, P. R. China
| | - Zhendong Fu
- Songshan Lake Materials Laboratory, Dongguan, 523808, P. R. China
| | - Hanqiu Jiang
- Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yubin Ke
- Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wen Yin
- Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kazutaka Ikeda
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki, 319-1106, Japan
- J-PARC Center, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki, 319-1106, Japan
| | - Toshiya Otomo
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki, 319-1106, Japan
- J-PARC Center, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki, 319-1106, Japan
| | - Fangwei Wang
- Spallation Neutron Source Science Center, Dongguan, 523803, P. R. China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jinkui Zhao
- Songshan Lake Materials Laboratory, Dongguan, 523808, P. R. China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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37
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Lai Y, Xie H, Li P, Li B, Zhao A, Luo L, Jiang Z, Fang Y, Chen S, Ai X, Xia D, Cao Y. Ion-Migration Mechanism: An Overall Understanding of Anionic Redox Activity in Metal Oxide Cathodes of Li/Na-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206039. [PMID: 36165216 DOI: 10.1002/adma.202206039] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/31/2022] [Indexed: 06/16/2023]
Abstract
The anionic redox reaction (ARR) has attracted extensive attention due to its potential to enhance the reversible capacity of cathode materials in Li/Na-ion batteries (LIBs/SIBs). However, the understanding of its activation mechanism is still limited by the insufficient mastering of the underlying thermodynamics and kinetics. Herein, a series of Mg/Li/Zn-substituted Nax MnO2 and Lix MnO2 cathode materials are designed to investigate their ARR behaviors. It is found that the ARR can be activated in only Li-substituted Lix MnO2 and not for Mg- and Zn-substituted ones, while all Mg/Li/Zn-substituted Nax MnO2 cathode materials exhibit ARR activities. Combining theoretical calculations with experimental results, such a huge difference between Li and Na cathodes is closely related to the migration of substitution ions from the transition metal layer to the alkali metal layer in a kinetic aspect, which generates unique Li(Na)-O-□TM and/or □Li/ Na -O-□TM configurations and reducing reaction activation energy to trigger the ARR. Based on these findings, an ion-migration mechanism is proposed to explain the different ARR behaviors between the Nax MnO2 and Lix MnO2 , which can not only reveal the origin of ARR in the kinetic aspect, but also provide a new insight for the development of high-capacity metal oxide cathode materials for LIBs/SIBs.
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Affiliation(s)
- Yangyang Lai
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Huixian Xie
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Peng Li
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Biao Li
- Beijing Key Laboratory of Theory and Technology for Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Along Zhao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Laibing Luo
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Zewen Jiang
- Beijing Key Laboratory of Theory and Technology for Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yongjin Fang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Shengli Chen
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Xinping Ai
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Dingguo Xia
- Beijing Key Laboratory of Theory and Technology for Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yuliang Cao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
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38
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Bassey EN, Reeves PJ, Seymour ID, Grey CP. 17O NMR Spectroscopy in Lithium-Ion Battery Cathode Materials: Challenges and Interpretation. J Am Chem Soc 2022; 144:18714-18729. [PMID: 36201656 PMCID: PMC9585580 DOI: 10.1021/jacs.2c02927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Modern studies of lithium-ion battery (LIB) cathode materials
employ
a large range of experimental and theoretical techniques to understand
the changes in bulk and local chemical and electronic structures during
electrochemical cycling (charge and discharge). Despite its being
rich in useful chemical information, few studies to date have used 17O NMR spectroscopy. Many LIB cathode materials contain paramagnetic
ions, and their NMR spectra are dominated by hyperfine and quadrupolar
interactions, giving rise to broad resonances with extensive spinning
sideband manifolds. In principle, careful analysis of these spectra
can reveal information about local structural distortions, magnetic
exchange interactions, structural inhomogeneities (Li+ concentration
gradients), and even the presence of redox-active O anions. In this
Perspective, we examine the primary interactions governing 17O NMR spectroscopy of LIB cathodes and outline how 17O
NMR may be used to elucidate the structure of pristine cathodes and
their structural evolution on cycling, providing insight into the
challenges in obtaining and interpreting the spectra. We also discuss
the use of 17O NMR in the context of anionic redox and
the role this technique may play in understanding the charge compensation
mechanisms in high-capacity cathodes, and we provide suggestions for
employing 17O NMR in future avenues of research.
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Affiliation(s)
- Euan N Bassey
- Department of Chemistry, University of Cambridge, Lensfield Road, CambridgeCB2 1EW, United Kingdom
| | - Philip J Reeves
- Department of Chemistry, University of Cambridge, Lensfield Road, CambridgeCB2 1EW, United Kingdom
| | - Ieuan D Seymour
- Department of Chemistry, University of Cambridge, Lensfield Road, CambridgeCB2 1EW, United Kingdom.,Department of Materials, Imperial College London, South Kensington Campus, LondonSW7 2AZ, United Kingdom
| | - Clare P Grey
- Department of Chemistry, University of Cambridge, Lensfield Road, CambridgeCB2 1EW, United Kingdom
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39
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Liu B, Hu N, Li C, Ma J, Zhang J, Yang Y, Sun D, Yin B, Cui G. Direct Observation of Li‐Ion Transport Heterogeneity Induced by Nanoscale Phase Separation in Li‐rich Cathodes of Solid‐State Batteries. Angew Chem Int Ed Engl 2022; 61:e202209626. [DOI: 10.1002/anie.202209626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Bowen Liu
- Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 China
| | - Naifang Hu
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
| | - Chao Li
- Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Tianjin 300071 China
| | - Jun Ma
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
- Shandong Energy Institute Qingdao 266101 China
| | - Jianwei Zhang
- Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 China
| | - Yuan Yang
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
| | - Deye Sun
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
| | - Bangxun Yin
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
| | - Guanglei Cui
- Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China
- Shandong Energy Institute Qingdao 266101 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
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40
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Yan C, Shao Q, Yao Z, Gao M, Zhang C, Chen G, Sun Q, Sun W, Liu Y, Gao M, Pan H. Multifunctional Surface Construction for Long-Term Cycling Stability of Li-Rich Mn-Based Layered Oxide Cathode for Li-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107910. [PMID: 35768284 DOI: 10.1002/smll.202107910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/31/2022] [Indexed: 06/15/2023]
Abstract
Li-rich Mn-based layered oxides (LMLOs) are promising cathode material candidate for the next-generation Li-ion batteries (LIBs) of high energy density. However, the fast capacity fading and voltage decay as well as low Coulombic efficiency caused by irreversible oxygen release and phase transition during the electrochemical process hinder their practical application. To solve these problems, in the present study, a multifunctional surface construction involving a coating layer, spinel-layered heterostructure, and rich-in oxygen vacancies is successfully conducted by a facile thermal reduction of the LMLO particles with potassium borohydride (KBH4 ) as the reducing agent. The multifunctional surface structure plays synergistic effects on suppressing the interface side reaction, reducing the dissolution of transition metal, increasing electron conductivity and lithium diffusion rate. As a result, electrochemical performances of the LMLO cathode are effectively enhanced. With optimization of the addition of KBH4 , the electrode delivers a reversible capacity of 280 mAh g-1 at 0.1 C, which maintains after 100 cycles. The capacity retention with respect to the initial capacity is as high as 98% at 1 C after 400 cycles. The present work provides insights into designing a highly effective functional surface structure of LMLO cathode materials for high-performance LIBs.
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Affiliation(s)
- Chenhui Yan
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qinong Shao
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhihao Yao
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Mingxi Gao
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chenyang Zhang
- College of Chemistry and Chemical Engineering, Xinxiang University, Henan, 453003, China
| | - Gairong Chen
- College of Chemistry and Chemical Engineering, Xinxiang University, Henan, 453003, China
| | - Qianwen Sun
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wenping Sun
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yongfeng Liu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Mingxia Gao
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hongge Pan
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
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41
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Hiroi S, Oishi M, Ohara K, Shimoda K, Kabutan D, Uchimoto Y. Adaptive Cation Pillar Effects Achieving High Capacity in Li-Rich Layered Oxide, Li 2 MnO 3 -LiMeO 2 (Me = Ni, Co, Mn). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203412. [PMID: 36052573 DOI: 10.1002/smll.202203412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Intensive research is underway to further enhance the performance of lithium-ion batteries (LIBs). To increase the capacity of positive electrode materials, Li-rich layered oxides (LLO) are attracting attention but have not yet been put to practical use. The structural mechanisms through which LLO materials exhibit higher capacity than conventional materials remain unclear because their disordered phases make it difficult to obtain structural information by conventional analysis. The X-ray total scattering analysis reveals a disordered structure consisting of metal ions in octahedral and tetrahedral sites of Li layers as a result of cation mixing after the extraction of Li ions. Metal ions in octahedral sites act as rigid pillars. The metal ions move to the tetrahedral site of the Li layer, which functions as a Li-layer pillar during Li extraction, and returns to the metal site during Li insertion, facilitating Li diffusion as an adaptive pillar. Adaptive pillars are the specific structural features that differ from those of the conventional layered materials, and their effects are responsible for the high capacity of LLO materials. An essential understanding of the pillar effects will contribute to design guidelines for intercalation-type positive electrodes for next-generation LIBs.
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Affiliation(s)
- Satoshi Hiroi
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Masatsugu Oishi
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minami Josanjima-cho, Tokushima, 770-8506, Japan
| | - Koji Ohara
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Keiji Shimoda
- Office of Society-Academia Collaboration for Innovation, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Daiki Kabutan
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minami Josanjima-cho, Tokushima, 770-8506, Japan
| | - Yoshiharu Uchimoto
- Graduate School of Human and Environment Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
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42
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Investigating the particle size effect on the electrochemical performance and degradation of cobalt-free lithium-rich layered oxide Li1.2Ni0.2Mn0.6O2. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Transition metal migration and O 2 formation underpin voltage hysteresis in oxygen-redox disordered rocksalt cathodes. Nat Commun 2022; 13:5275. [PMID: 36071065 PMCID: PMC9452515 DOI: 10.1038/s41467-022-32983-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 08/25/2022] [Indexed: 11/20/2022] Open
Abstract
Lithium-rich disordered rocksalt cathodes display high capacities arising from redox chemistry on both transition-metal ions (TM-redox) and oxygen ions (O-redox), making them promising candidates for next-generation lithium-ion batteries. However, the atomic-scale mechanisms governing O-redox behaviour in disordered structures are not fully understood. Here we show that, at high states of charge in the disordered rocksalt Li2MnO2F, transition metal migration is necessary for the formation of molecular O2 trapped in the bulk. Density functional theory calculations reveal that O2 is thermodynamically favoured over other oxidised O species, which is confirmed by resonant inelastic X-ray scattering data showing only O2 forms. When O-redox involves irreversible Mn migration, this mechanism results in a path-dependent voltage hysteresis between charge and discharge, commensurate with the hysteresis observed electrochemically. The implications are that irreversible transition metal migration should be suppressed to reduce the voltage hysteresis that afflicts O-redox disordered rocksalt cathodes. The oxygen-redox mechanism in lithium-rich disordered rocksalt cathode materials is still not well understood. Here, the authors show that in Li2MnO2F, molecular oxygen forms in the bulk during charge and is re-incorporated into the structure as oxygen anions on discharge, but this process is associated with irreversible Mn migration, causing voltage hysteresis.
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44
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Wang Q, Liao Y, Jin X, Cheng C, Chu S, Sheng C, Zhang L, Hu B, Guo S, Zhou H. Dual Honeycomb‐Superlattice Enables Double‐High Activity and Reversibility of Anion Redox for Sodium‐Ion Battery Layered Cathodes. Angew Chem Int Ed Engl 2022; 61:e202206625. [DOI: 10.1002/anie.202206625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Qi Wang
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
- Shenzhen Research Institute of Nanjing University Shenzhen 51800 P. R. China
| | - Yuxin Liao
- Shanghai Key Laboratory of Magnetic Resonance State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University Shanghai 200241 P. R. China
| | - Xin Jin
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
| | - Chen Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University 199 Ren'ai Road Suzhou 215123 P. R. China
| | - Shiyong Chu
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
- Shenzhen Research Institute of Nanjing University Shenzhen 51800 P. R. China
| | - Chuanchao Sheng
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
| | - Liang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University 199 Ren'ai Road Suzhou 215123 P. R. China
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University Shanghai 200241 P. R. China
| | - Shaohua Guo
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
- Shenzhen Research Institute of Nanjing University Shenzhen 51800 P. R. China
| | - Haoshen Zhou
- Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures, and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China
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45
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Liu B, Hu N, Li C, Ma J, Zhang J, Yang Y, Sun D, Yin B, Cui G. Direct Observation of Li‐Ion Transport Heterogeneity Induced by Nanoscale Phase Separation in Li‐rich Cathodes of Solid‐State Batteries. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bowen Liu
- Tianjin University of Technology Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering CHINA
| | - Naifang Hu
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Chao Li
- Tianjin University of Technology Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering CHINA
| | - Jun Ma
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Jianwei Zhang
- Tianjin University of Technology Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering CHINA
| | - Yuan Yang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Deye Sun
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Bangxun Yin
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Guanglei Cui
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Department of Energy Science and Energy Technology Songling Road, 189 266101 Qingdao City CHINA
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46
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Fang L, Zhou L, Park M, Han D, Lee G, Kang S, Lee S, Chen M, Hu Z, Zhang K, Nam K, Kang Y. Hysteresis Induced by Incomplete Cationic Redox in Li-Rich 3d-Transition-Metal Layered Oxides Cathodes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201896. [PMID: 35661447 PMCID: PMC9376854 DOI: 10.1002/advs.202201896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Activation of oxygen redox during the first cycle has been reported as the main trigger of voltage hysteresis during further cycles in high-energy-density Li-rich 3d-transition-metal layered oxides. However, it remains unclear whether hysteresis only occurs due to oxygen redox. Here, it is identified that the voltage hysteresis can highly correlate to cationic reduction during discharge in the Li-rich layered oxide, Li1.2 Ni0.4 Mn0.4 O2 . In this material, the potential region of discharge accompanied by hysteresis is apparently separated from that of discharge unrelated to hysteresis. The quantitative analysis of soft/hard X-ray absorption spectroscopies discloses that hysteresis is associated with an incomplete cationic reduction of Ni during discharge. The galvanostatic intermittent titration technique shows that the inevitable energy consumption caused by hysteresis corresponds to an overpotential of 0.3 V. The results unveil that hysteresis can also be affected by cationic redox in Li-rich layered cathodes, implying that oxygen redox cannot be the only reason for the evolution of voltage hysteresis. Therefore, appropriate control of both cationic and anionic redox of Li-rich layered oxides will allow them to reach their maximum energy density and efficiency.
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Affiliation(s)
- Liang Fang
- Department of Energy and Materials EngineeringDongguk University – SeoulSeoul04620Republic of Korea
| | - Limin Zhou
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Mihui Park
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Daseul Han
- Department of Energy and Materials EngineeringDongguk University – SeoulSeoul04620Republic of Korea
| | - Gi‐Hyeok Lee
- Department of Energy and Materials EngineeringDongguk University – SeoulSeoul04620Republic of Korea
| | - Seongkoo Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Suwon Lee
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Mingzhe Chen
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Zhe Hu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Engineering Research Center of High‐efficiency Energy Storage (Ministry of Education)Renewable Energy Conversion and Storage Center (RECAST)College of ChemistryNankai UniversityTianjin300071China
| | - Kai Zhang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Engineering Research Center of High‐efficiency Energy Storage (Ministry of Education)Renewable Energy Conversion and Storage Center (RECAST)College of ChemistryNankai UniversityTianjin300071China
| | - Kyung‐Wan Nam
- Department of Energy and Materials EngineeringDongguk University – SeoulSeoul04620Republic of Korea
| | - Yong‐Mook Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
- KU‐KIST Graduate School of Converging Science & TechnologyKorea UniversitySeoul02841Republic of Korea
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47
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Ji X, Xu Y, Xia Q, Zhou Y, Song J, Feng H, Wang P, Yang J, Tan Q. Li-Deficient Materials-Decoration Restrains Oxygen Evolution Achieving Excellent Cycling Stability of Li-Rich Mn-Based Cathode. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30133-30143. [PMID: 35739645 DOI: 10.1021/acsami.2c03073] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With the increasing demand for high energy density and rapid charging performance, Li-rich materials have been the up and coming cathodes for next-generation lithium-ion batteries. However, because of oxygen evolution and structural instability, the commercialization of Li-rich materials is extremely retarded by their poor electrochemical performances. In this work, Li-deficient materials Li0.3NbO2 and (Nb0.62Li0.15)TiO3 are applied to functionalize the surface of Li1.2Mn0.54Ni0.13Co0.13O2, aiming to suppress oxygen evolution and increase structural stability in LIBs. In addition, a fast Li-ion transport channel is beneficial to enhance Li+ diffusion kinetics. The results demonstrate that the electrodes decorated with Li0.3NbO2 and (Nb0.62Li0.15)TiO3 materials exhibit more stable cycling stability after long-term cycling and outstanding rate capability.
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Affiliation(s)
- Xueqian Ji
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuxing Xu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Hebei Technology Innovation Center of Advanced Energy Materials, Langfang 065001, China
| | - Qing Xia
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Hebei Technology Innovation Center of Advanced Energy Materials, Langfang 065001, China
| | - Yuncheng Zhou
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiechen Song
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hailan Feng
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Hebei Technology Innovation Center of Advanced Energy Materials, Langfang 065001, China
| | - Pengfei Wang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Hebei Technology Innovation Center of Advanced Energy Materials, Langfang 065001, China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Qiangqiang Tan
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Hebei Technology Innovation Center of Advanced Energy Materials, Langfang 065001, China
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48
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Dual Honeycomb‐Superlattice Enables Double‐High Activity and Reversibility of Anion Redox for Sodium‐Ion Battery Layered Cathodes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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49
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Hendrickx M, Paulus A, Kirsanova MA, Van Bael MK, Abakumov AM, Hardy A, Hadermann J. The Influence of Synthesis Method on the Local Structure and Electrochemical Properties of Li-Rich/Mn-Rich NMC Cathode Materials for Li-Ion Batteries. NANOMATERIALS 2022; 12:nano12132269. [PMID: 35808104 PMCID: PMC9268383 DOI: 10.3390/nano12132269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023]
Abstract
Electrochemical energy storage plays a vital role in combating global climate change. Nowadays lithium-ion battery technology remains the most prominent technology for rechargeable batteries. A key performance-limiting factor of lithium-ion batteries is the active material of the positive electrode (cathode). Lithium- and manganese-rich nickel manganese cobalt oxide (LMR-NMC) cathode materials for Li-ion batteries are extensively investigated due to their high specific discharge capacities (>280 mAh/g). However, these materials are prone to severe capacity and voltage fade, which deteriorates the electrochemical performance. Capacity and voltage fade are strongly correlated with the particle morphology and nano- and microstructure of LMR-NMCs. By selecting an adequate synthesis strategy, the particle morphology and structure can be controlled, as such steering the electrochemical properties. In this manuscript we comparatively assessed the morphology and nanostructure of LMR-NMC (Li1.2Ni0.13Mn0.54Co0.13O2) prepared via an environmentally friendly aqueous solution-gel and co-precipitation route, respectively. The solution-gel (SG) synthesized material shows a Ni-enriched spinel-type surface layer at the {200} facets, which, based on our post-mortem high-angle annual dark-field scanning transmission electron microscopy and selected-area electron diffraction analysis, could partly explain the retarded voltage fade compared to the co-precipitation (CP) synthesized material. In addition, deviations in voltage fade and capacity fade (the latter being larger for the SG material) could also be correlated with the different particle morphology obtained for both materials.
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Affiliation(s)
- Mylène Hendrickx
- EMAT, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium;
| | - Andreas Paulus
- DESINe Group, Materials Chemistry, Institute for Materials Research (IMO-Imomec), Hasselt University, Agoralaan Building D and Imec, Division Imomec, and Energyville, 3590 Diepenbeek, Belgium; (A.P.); (M.K.V.B.); (A.H.)
| | - Maria A. Kirsanova
- Skolkovo Institute of Science and Technology, Center for Energy Science and Technology, Nobel Str. 3, 121205 Moscow, Russia; (M.A.K.); (A.M.A.)
| | - Marlies K. Van Bael
- DESINe Group, Materials Chemistry, Institute for Materials Research (IMO-Imomec), Hasselt University, Agoralaan Building D and Imec, Division Imomec, and Energyville, 3590 Diepenbeek, Belgium; (A.P.); (M.K.V.B.); (A.H.)
| | - Artem M. Abakumov
- Skolkovo Institute of Science and Technology, Center for Energy Science and Technology, Nobel Str. 3, 121205 Moscow, Russia; (M.A.K.); (A.M.A.)
| | - An Hardy
- DESINe Group, Materials Chemistry, Institute for Materials Research (IMO-Imomec), Hasselt University, Agoralaan Building D and Imec, Division Imomec, and Energyville, 3590 Diepenbeek, Belgium; (A.P.); (M.K.V.B.); (A.H.)
| | - Joke Hadermann
- EMAT, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium;
- Correspondence:
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Chi ZL, Yu GH, Teng HH, Liu HG, Wang J, Liu CQ, Shen QR, Gadd GM. Molecular Trade-Offs between Lattice Oxygen and Oxygen Vacancy Drive Organic Pollutant Degradation in Fungal Biomineralized Exoskeletons. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8132-8141. [PMID: 35561278 DOI: 10.1021/acs.est.2c01388] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Fungal-mineral interactions can effectively alleviate cellular stress from organic pollutants, the production of which are expected to rapidly increase owing to the Earth moving into an unprecedented geological epoch, the Anthropocene. The underlying mechanisms that may enable fungi to combat organic pollution during fungal-mineral interactions remain unclear. Inspired by the natural fungal sporulation process, we demonstrate for the first time that fungal biomineralization triggers the formation of an ultrathin (hundreds of nanometers thick) exoskeleton, enriched in nanosized iron (oxyhydr)oxides and biomolecules, on the hyphae. Mapped biochemical composition of this coating at a subcellular scale via high spatial resolution (down to 50 nm) synchrotron radiation-based techniques confirmed aromatic C, C-N bonds, amide carbonyl, and iron (oxyhydr)oxides as the major components of the coatings. This nanobiohybrid system appeared to impart a strong (×2) biofunctionality for fungal degradation of bisphenol A through altering molecular-level trade-offs between lattice oxygen and oxygen vacancy. Together, fungal coatings could act as "artificial spores", which enable fungi to combat physical and chemical stresses in natural environments, providing crucial insights into fungal biomineralization and coevolution of the Earth's lithosphere and biosphere.
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Affiliation(s)
- Zhi-Lai Chi
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Guang-Hui Yu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - H Henry Teng
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
- Department of Chemistry, George Washington University, Washington, District of Columbia 20006, United States
| | - Hai-Gang Liu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Jian Wang
- Canadian Light Source Inc., University of Saskatchewan, 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Cong-Qiang Liu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Qi-Rong Shen
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, U.K
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China
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