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Wei Z, Hu B, Yao C, Yang J, Zhang B, Wang Y, Li X, Guo J, Liu J. Dual-engineered Ni-LiMn 2O 4 microsheets for sustainable lithium mining: Accelerated ion transport and robust electrochemical extraction in brine. J Colloid Interface Sci 2025; 693:137655. [PMID: 40279849 DOI: 10.1016/j.jcis.2025.137655] [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: 03/05/2025] [Revised: 04/09/2025] [Accepted: 04/19/2025] [Indexed: 04/29/2025]
Abstract
The surging demand for lithium in energy storage necessitates sustainable and efficient electrochemical lithium recovery from salt lakes. Herein, we develop Ni-doped LiMn2O4 microsheets (LNMO-MS) via a green bio-templated synthesis that integrates 2D morphology engineering and Ni-doping using chitosan biopolymer as a structural guide. This dual modulation addresses intrinsic limitations of conventional LiMn2O4. Ni doping induces [MnO6] octahedral contraction to stabilize the framework and enhance Li+ selectivity (Mg2+/Li+ separation factor: 401.32 at Mg2+/Li+ = 200), while the 2D architecture shortens Li+ diffusion paths, enabling 10-fold faster ion kinetics and improved charge transfer. In capacitive deionization (CDI), the LNMO-MS achieves a record Li+ adsorption capacity (4.12 mmol g-1), with low energy consumption (1.96 Wh moL-1 Li+), outperforming conventional LiMn2O4 electrodes. Real-world validation using Qarhan Salt Lake brine demonstrates practical viability, producing concentrated LiCl solutions (1 g L-1 Li, Mg2+/Li+=0.13) at 8.63 Wh·mol-1 Li+, while maintaining 92 % capacity retention over 200 cycles. The strategy of bio-guided 2D structuring and Ni doping establishes an energy-efficient, durable platform for selective lithium extraction, offering a sustainable solution to bridge lithium supply-demand gaps with minimized environmental footprint.
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Affiliation(s)
- Zheng Wei
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Bin Hu
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Chenfei Yao
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Jianmao Yang
- Research Center for Analysis & Measurement, Donghua University, Shanghai 201620, PR China
| | - Boshuang Zhang
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Yiwen Wang
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Xiaodie Li
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China
| | - Jianxin Guo
- Key Laboratory of Optic-Electronic Information Materials of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, PR China
| | - Jianyun Liu
- College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment, Donghua University, Shanghai 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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2
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Xu W, Li Q, Xia S, Li Z, Cheng F, Guo S. In situ formed Ag nanoparticle decorated LiMn 2O 4 cathodes with outstanding electrochemical performance. Dalton Trans 2025; 54:6613-6622. [PMID: 40152285 DOI: 10.1039/d5dt00511f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2025]
Abstract
Surface coating is an effective approach for realizing the commercialization of cathode materials. Nowadays, ionically conducting surface coatings are commonly used to improve the electrochemical stability of LiMn2O4. In this work, LiMn2O4 cathodes decorated with in situ formed Ag nanoparticles with high electronic and ionic conductivity are prepared via a simple calcination process. The detailed microstructural mechanism of the influence of Ag on the electrochemical performance enhancement of spinel LiMn2O4 is uncovered by spherical-aberration-corrected (Cs-corrected) scanning transmission electron microscopy (STEM). The results demonstrate that the Ag coating helps to promote the transport of Li+ and strengthen the cycling stability by alleviating the decomposition of the electrolyte and manganese dissolution. Accordingly, the capacity retention rate of the optimized 5 wt% Ag/LiMn2O4 sample reached 80% after 900 cycles with an initial discharge-specific capacity of 100 mA h g-1 at 5 C (1 C = 148 mA h g-1). This work indicates that Ag coating is a promising technology for producing high-energy density lithium-ion batteries.
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Affiliation(s)
- Wangqiong Xu
- College of Physics and Electronic Engineering, Qujing Normal University, Qujing, Yunnan 655011, China.
| | - Qiling Li
- Yunnan Key Laboratory of Crystalline Porous Organic Functional Materials, College of Chemistry and Environmental Science, Qujing Normal University, Qujing, Yunnan 655011, China
| | - Shubiao Xia
- Yunnan Key Laboratory of Crystalline Porous Organic Functional Materials, College of Chemistry and Environmental Science, Qujing Normal University, Qujing, Yunnan 655011, China
| | - Zhe Li
- College of Physics and Electronic Engineering, Qujing Normal University, Qujing, Yunnan 655011, China.
| | - Feixiang Cheng
- Yunnan Key Laboratory of Crystalline Porous Organic Functional Materials, College of Chemistry and Environmental Science, Qujing Normal University, Qujing, Yunnan 655011, China
| | - Shimei Guo
- College of Physics and Electronic Engineering, Qujing Normal University, Qujing, Yunnan 655011, China.
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3
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Huang Y, Zhang B, Zhang J, Wang Y, Xia L, Xiang M, Han W, Li J, Feng Z, Liu Y, Zhang E, Duan J, Dong P, Zhang Y, Zhang Y. Using High-Entropy Configuration Strategy to Design Spinel Lithium Manganate Cathodes with Remarkable Electrochemical Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025; 21:e2410999. [PMID: 39763130 DOI: 10.1002/smll.202410999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2024] [Revised: 12/25/2024] [Indexed: 02/21/2025]
Abstract
Owing to its abundant manganese source, high operating voltage, and good ionic diffusivity attributed to its 3D Li-ion diffusion channels. Spinel LiMn2O4 is considered a promising low-cost positive electrode material in the context of reducing scarce elements such as cobalt and nickel from advanced lithium-ion batteries. However, the rapid capacity degradation and inadequate rate capabilities induced by the Jahn-Teller distortion and the manganese dissolution have limited the large-scale adoption of spinel LiMn2O4 for decades. In this study, LiMn1.98Mg0.005Ti0.005Sb0.005Ce0.005O4 spinel positive electrode material (HE-LMO) with remarkable interfacial structural and cycling stability is developed based on a complex concentrated doping strategy. The initial discharge capacity and capacity retention of the electrode of HE-LMO are 111.51 mAh g-1 and 90.55% after 500 cycles at 1 C. The as-prepared HE-LMO displays favorable cycling stability, significantly surpassing the pristine sample. Furthermore, theoretical calculations strongly support the above finding. HE-LMO has a higher and more continuous density of states at the Fermi energy level and more robust bonded states of the electrons among the Mn─O atom pairs. This research contributes to the field of high-entropy doping modification and establishes a facile strategy for designing advanced spinel manganese-based lithium-ion batteries (LIBs).
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Affiliation(s)
- Yixue Huang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Bao Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jian Zhang
- Shanghai Institute of Microsystem and Information Technology, Shanghai, 201800, China
| | - Yongqi Wang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Ling Xia
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China
| | - Mingwu Xiang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China
| | - Wenchang Han
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jie Li
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Ziliang Feng
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yongkang Liu
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Enfeng Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jianguo Duan
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Peng Dong
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yingjie Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yannan Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China
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Tan G, Wan S, Chen JJ, Yu HQ, Yu Y. Reduced Lattice Constant in Al-Doped LiMn 2O 4 Nanoparticles for Boosted Electrochemical Lithium Extraction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310657. [PMID: 38193844 DOI: 10.1002/adma.202310657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/12/2023] [Indexed: 01/10/2024]
Abstract
Extracting lithium selectively and efficiently from brine sources is crucial for addressing energy and environmental challenges. The electrochemical system employing LiMn2O4 (LMO) electrodes has been recognized as an effective method for lithium recovery. However, the lithium selectivity and stability of LMO need further enhancement for its practical applications. Herein, the Al-doped LMO with reduced lattice constant is successfully fabricated through a facile one-step solid-state sintering method, leading to enhanced lithium selectivity. The reduced lattice constant in Al-doped LMO is proved through spectroscopic analyses and theoretic calculations. Compared to the original LMO, the Al-doped LMO (LiAl0.05Mn1.95O4, LMO-Al0.05) exhibits highercapacitance, lower resistance, and improved stability. Moreover, the LMO-Al0.05 with reduced lattice constant can offer higher Li+ diffusion coefficient and lower intercalation energy revealed by cyclic voltammetry and multiscale simulations. When employed in hybrid capacitive deionization (CDI), the LMO-Al0.05 obtains a Li+ intercalation capacity of 21.7 mg g-1 and low energy consumption of 2.6 Wh mol-1 Li+. Importantly, the LMO-Al0.05 achieves a high Li+ extraction percentage (≈86%) with Li+/Na+ and Li+/Mg2+ selectivity of 1653.8 and 434.9, respectively, in synthetic brine. The results demonstrate that the Al-doped LMO with reduced lattice constant could be a sustainable solution for electrochemical lithium extraction.
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Affiliation(s)
- Guangcai Tan
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Shun Wan
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Jie-Jie Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Yu
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China
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5
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Sun K, Tebyetekerwa M, Zeng X, Wang Z, Duignan TT, Zhang X. Understanding the Electrochemical Extraction of Lithium from Ultradilute Solutions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:3997-4007. [PMID: 38366979 DOI: 10.1021/acs.est.3c09111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
The electrochemical extraction of lithium (Li) from aqueous sources using electrochemical means is a promising direct Li extraction technology. However, to this date, most electrochemical Li extraction studies are confined to Li-rich brine, neglecting the practical and existing Li-lean resources, with their overall extraction behaviors currently not fully understood. More still, the effect of elevated sodium (Na) concentrations typically found in most Li-lean water sources on Li extraction is unclear. Hence, in this work, we first understand the electrochemical Li extraction behaviors from ultradilute solutions using spinel lithium manganese oxide as the model electrode. We discovered that Li extraction depends highly on the Li concentration and cell operation current density. Then, we switched our focus on low Li to Na ratio solutions, revealing that Na can dominate the electrostatic screening layer, reducing Li ion concentration. Based on these understandings, we rationally employed pulsed electrochemical operation to restructure the electrode surface and distribute the surface-adsorbed species, which efficiently achieves a high Li selectivity even in extremely low initial Li/Na concentrations of up to 1:20,000.
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Affiliation(s)
- Kaige Sun
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Mike Tebyetekerwa
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Xiangkang Zeng
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Zhuyuan Wang
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Timothy T Duignan
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, QLD 4011, Australia
| | - Xiwang Zhang
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
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6
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Park H, Guo Z, Manthiram A. Effect of Oxidative Synthesis Conditions on the Performance of Single-Crystalline LiMn 2- x M x O 4 (M = Al, Fe, and Ni) Spinel Cathodes in Lithium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303526. [PMID: 37786310 DOI: 10.1002/smll.202303526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 09/17/2023] [Indexed: 10/04/2023]
Abstract
LiMn2 O4 (LMO) spinel cathode materials attract much interest due to the low price of manganese and high power density for lithium-ion batteries. However, the LMO cathodes suffer from the Mn dissolution problem at particle surfaces, which accelerates capacity fade. Herein, the authors report that the oxidative synthesis condition is a key factor in the cell performance of single-crystalline LiMn2- x Mx O4 (0.03 ≤ x ≤ 0.1, M = Al, Fe, and Ni) cathode materials prepared at 1000 °C. The use of oxygen flow during the spinel-phase formation minimizes the presence of oxygen vacancies generated at 1000 °C, thereby yielding a stoichiometrically doped LMO product; otherwise, the spinel cathode prepared in atmospheric air readily loses capacity due to the oxygen vacancies in the structure. As a way of circumventing the use of oxygen flow, a one-pot, two-step heating in air at 1000 °C and subsequently at 600 °C is used to yield the stoichiometric LMO product. The lithiation heating at 1000-600 ⁰C resulted in a significant improvement in the cycling stability of the prepared LMO cathode in graphite-based full cells. This study on oxidative synthesis conditions also confirms the advantage of minimizing the surface area of the cathode particles.
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Affiliation(s)
- Hongjun Park
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - Zezhou Guo
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - Arumugam Manthiram
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, Texas, 78712, USA
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Liu X, Fan Z, Zheng Y, Zha J, Zhang Y, Zhu S, Zhang Z, Zhang X, Huang F, Liang T, Li C, Wang Q, Tan C. Controlled Synthesis of Lead-Free Double Perovskite Colloidal Nanocrystals for Nonvolatile Resistive Memory Devices. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55991-56002. [PMID: 37987746 DOI: 10.1021/acsami.3c12576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Although lead-free double perovskites such as Cs2AgBiBr6 have been widely explored, they still remain a daunting challenge for the controlled synthesis of lead-free double perovskite nanocrystals with highly tunable morphology and band structure. Here, we report the controlled synthesis of lead-free double perovskite colloidal nanocrystals including Cs2AgBiBr6 and Cs2AgInxBi1-xBr6 via a facile wet-chemical synthesis method for the fabrication of high-performance nonvolatile resistive memory devices. Cs2AgBiBr6 colloidal nanocrystals with well-defined cuboidal, hexagonal, and triangular morphologies are synthesized through a facile wet-chemical approach by tuning the reaction temperature from 150 to 190 °C. Further incorporating indium into Cs2AgBiBr6 to synthesize alloyed Cs2AgInxBi1-xBr6 nanocrystals not only can induce the indirect-to-direct bandgap transition with enhanced photoluminescence but also can improve its structural stability. After optimizing the active layers and device structure, the fabricated Ag/polymethylene acrylate@Cs2AgIn0.25Bi0.75Br6/ITO resistive memory device exhibits a low power consumption (the operating voltage is ∼0.17 V), excellent cycling stability (>10 000 cycles), and good synaptic property. Our study would enable the facile wet-chemical synthesis of lead-free double perovskite colloidal nanocrystals in a highly controllable manner for the development of high-performance resistive memory devices.
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Affiliation(s)
- Xingyu Liu
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Zhen Fan
- Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Yuhui Zheng
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Jiajia Zha
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 999077, P. R. China
| | - Yong Zhang
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China
| | - Siyuan Zhu
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China
| | - Zhang Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Xuyan Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China
| | - Fei Huang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Tong Liang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Chunxia Li
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Qianming Wang
- School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, P. R. China
| | - Chaoliang Tan
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR 999077, P. R. China
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Shen F, Ma Q, Tietz F, Kao J, Huang C, Hernandha RFH, Huang C, Lo Y, Chang J, Wu W. In Situ Atomic-Scale Investigation of Structural Evolution During Sodiation/Desodiation Processes in Na 3 V 2 (PO 4 ) 3 -Based All-Solid-State Sodium Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301490. [PMID: 37672878 PMCID: PMC10646283 DOI: 10.1002/advs.202301490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/21/2023] [Indexed: 09/08/2023]
Abstract
Recently, all-solid-state sodium batteries (Na-ASSBs) have received increased interest owing to their high safety and potential of high energy density. The potential of Na-ASSBs based on sodium superionic conductor (NASICON)-structured Na3 V2 (PO4 )3 (Na3 VP) cathodes have been proven by their high capacity and a long cycling stability closely related to the microstructural evolution. However, the detailed kinetics of the electrochemical processes in the cathodes is still unclear. In this work, the sodiation/desodiation process of Na3 VP is first investigated using in situ high-resolution transmission electron microscopy (HRTEM). The intermediate Na2 V2 (PO4 )3 (Na2 VP) phase with the P21 /c space group, which would be inhibited by constant electron beam irradiation, is observed at the atomic scale. With the calculated volume change and the electrode-electrolyte interface after cycling, it can be concluded that the Na2 VP phase reduces the lattice mismatch between Na3 VP and NaV2 (PO4 )3 (NaVP), preventing structural collapse. Based on the density functional theory calculation (DFT), the Na+ ion migrates more rapidly in the Na2 VP structure, which facilitates the desodiation and sodiation processes. The formation of Na2 VP phase lowers the formation energy of NaVP. This study demonstrates the dynamic evolution of the Na3 VP structure, paving the way for an in-depth understanding of electrode materials for energy-storage applications.
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Affiliation(s)
- Fang‐Chun Shen
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
| | - Qianli Ma
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate ResearchMaterials Synthesis and Processing (IEK‐1)52425JülichGermany
| | - Frank Tietz
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate ResearchMaterials Synthesis and Processing (IEK‐1)52425JülichGermany
| | - Jui‐Cheng Kao
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
| | - Chi‐Ting Huang
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
| | | | - Chun‐Wei Huang
- Department of Materials Science and EngineeringFeng Chia UniversityNo. 100, Wenhwa Rd., SeatwenTaichung40724Taiwan
| | - Yu‐Chieh Lo
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
| | - Jeng‐Kuei Chang
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
| | - Wen‐Wei Wu
- Department of Materials Science and EngineeringNational Yang Ming Chiao Tung UniversityHsinchu30010Taiwan
- Center for the Intelligent Semiconductor Nano‐system Technology ResearchHsinchu30078Taiwan
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9
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Zhang Y, Hu A, Xia D, Hwang S, Sainio S, Nordlund D, Michel FM, Moore RB, Li L, Lin F. Operando characterization and regulation of metal dissolution and redeposition dynamics near battery electrode surface. NATURE NANOTECHNOLOGY 2023; 18:790-797. [PMID: 37081082 DOI: 10.1038/s41565-023-01367-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/09/2023] [Indexed: 05/03/2023]
Abstract
Mn dissolution has been a long-standing, ubiquitous issue that negatively impacts the performance of Mn-based battery materials. Mn dissolution involves complex chemical and structural transformations at the electrode-electrolyte interface. The continuously evolving electrode-electrolyte interface has posed great challenges for characterizing the dynamic interfacial process and quantitatively establishing the correlation with battery performance. In this study, we visualize and quantify the temporally and spatially resolved Mn dissolution/redeposition (D/R) dynamics of electrochemically operating Mn-containing cathodes. The particle-level and electrode-level analyses reveal that the D/R dynamics is associated with distinct interfacial degradation mechanisms at different states of charge. Our results statistically differentiate the contributions of surface reconstruction and Jahn-Teller distortion to the Mn dissolution at different operating voltages. Introducing sulfonated polymers (Nafion) into composite electrodes can modulate the D/R dynamics by trapping the dissolved Mn species and rapidly establishing local Mn D/R equilibrium. This work represents an inaugural effort to pinpoint the chemical and structural transformations responsible for Mn dissolution via an operando synchrotron study and develops an effective method to regulate Mn interfacial dynamics for improving battery performance.
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Affiliation(s)
- Yuxin Zhang
- Department of Chemistry, Virginia Tech, Blacksburg, VA, USA
| | - Anyang Hu
- Department of Chemistry, Virginia Tech, Blacksburg, VA, USA
| | - Dawei Xia
- Department of Chemistry, Virginia Tech, Blacksburg, VA, USA
| | - Sooyeon Hwang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA.
| | - Sami Sainio
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - F Marc Michel
- Department of Geosciences, Virginia Tech, Blacksburg, VA, USA
| | - Robert B Moore
- Department of Chemistry, Virginia Tech, Blacksburg, VA, USA
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, USA
| | - Luxi Li
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA.
| | - Feng Lin
- Department of Chemistry, Virginia Tech, Blacksburg, VA, USA.
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, USA.
- Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, USA.
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10
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Zhang K, Li D, Shao J, Jiang Y, Lv L, Shi Q, Qu Q, Zheng H. Ultrafast Charge and Long Life of High-Voltage Cathodes for Dual-Ion Batteries via a Bifunctional Interphase Nanolayer on Graphite Particles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206360. [PMID: 36587962 DOI: 10.1002/smll.202206360] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Dual-ion batteries (DIBs) with Co/Ni-free cathodes especially graphite cathodes are very attractive energy storage systems in the long run because of the cost effectiveness and sustainability. However, graphite cathodes severely suffer from poor structural stability during anions storage at high potentials owing to the oxidative decomposition of electrolytes and volume expansion. This work proposes an artificial cathode/electrolyte interphase (CEI) strategy by implanting polyphosphoric acid (PPA) nanofilms tightly on natural graphite (NG) particles via interfacial hydrogen bonding. The electrochemical results show that the PPA-modified graphite cathodes possess enhanced charge-discharge reversibility, accelerated electrode reaction kinetic, decreased resistance, decelerated self-discharge, and prolonged cycling life. Through post-analyses on the cycled graphite cathodes, the improved performance is mainly attributed to the PPA-based CEI, which effectively mitigates the electrolyte decomposition and protects the graphitic structure. More interestingly, the hydrogen bonding interactions between poly(vinyldifluoride) (PVDF) binder and PPA as validated through density functional theory calculations and practical experiments can increase the contact sites of PVDF chains on NG@PPA particles. Meanwhile, the cross-linking effect of PPA can enhance the mechanical strength of PVDF, thus the long life of NG@PPA cathode is also correlated with the improved mechanical stability of the entire electrode.
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Affiliation(s)
- Kejia Zhang
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
| | - Decheng Li
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
| | - Jie Shao
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
| | - Yu Jiang
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
| | - Linze Lv
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
| | - Qiang Shi
- Suzhou Huaying New Energy Materials and Technology Co., Ltd., Suzhou, Jiangsu, 215100, P. R. China
| | - Qunting Qu
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
- Suzhou Huaying New Energy Materials and Technology Co., Ltd., Suzhou, Jiangsu, 215100, P. R. China
| | - Honghe Zheng
- College of Energy, Soochow University, Suzhou, Jiangsu, 215006, P. R. China
- Suzhou Huaying New Energy Materials and Technology Co., Ltd., Suzhou, Jiangsu, 215100, P. R. China
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11
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Li J, Yang M, Zhang X, Wen J, Wang C, Huang G, Song W. First-Principles Study of the Effect of Ni-Doped on the Spinel-Type Mn-Based Cathode Discharge. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8208-8216. [PMID: 36734007 DOI: 10.1021/acsami.2c22188] [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
Spinel-type manganese oxide is considered as a typical cobalt-free high-voltage cathode material for lithium-ion battery applications because of its low cost, non-toxicity, and easy preparation. Nevertheless, severe capacity fading during charge and discharge limits its commercialization. Therefore, understanding the electrochemical properties and its modification mechanism of spinel-type manganese oxide for a lithium-ion battery is of great research interest. Herein, we presented a theoretical study regarding the discharge process of LiMn2O4 and LiNi0.5Mn1.5O4 using first-principles calculations based on density functional theory. We found that the discharge process is accompanied by an increase in unit cell volume and lattice distortion. Moreover, 25% Ni-substitution increases the average calculated voltage of LiMn2O4 from 3.83 to 4.61 V, which is very close to the experimental value. The electronic structure is further discussed to understand the mechanism of voltage increase. In addition, the Ni element also reduces the Li-ion diffusion barrier by 0.06 eV, which helps to improve the intrinsic rate performance of LiMn2O4. Our research can provide insight into how Ni-substitution influences the voltage and diffusion barrier of LiMn2O4 and pave the way for other spinel-type manganese oxide electrode applications.
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Affiliation(s)
- Jiexiang Li
- College of New Energy and Materials, China University of Petroleum, Beijing102249, China
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Min Yang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Xiaoming Zhang
- College of New Energy and Materials, China University of Petroleum, Beijing102249, China
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Jiawei Wen
- College of New Energy and Materials, China University of Petroleum, Beijing102249, China
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Chunxia Wang
- College of New Energy and Materials, China University of Petroleum, Beijing102249, China
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Guoyong Huang
- College of New Energy and Materials, China University of Petroleum, Beijing102249, China
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing102249, China
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12
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Yin T, Lin X, Han T, Zhou T, Li J, Liu J. A novel coral-like LiMn2O4 nanostructure as Li-ion battery cathode displaying stable energy-storage performance. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2022.117090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Xu W, Song C, Qi R, Zheng Y, Wu Y, Cheng Y, Peng H, Lin H, Huang R. In Situ Formed Core-Shell LiZn xMn 2-xO 4@ZnMn 2O 4 as Cathode for Li-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55528-55537. [PMID: 36510356 DOI: 10.1021/acsami.2c15783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Elemental doping and surface modification are commonly used strategies for improving the electrochemical performance of LiMn2O4, such as the rated capacity and cycling stability. In this study, in situ formed core-shell LiZnxMn2-xO4@ZnMn2O4 cathodes are prepared by tuning the Zn-doping content. Through comprehensive microstructural analyses by the spherical aberration-corrected scanning transmission microscopy (Cs-STEM) technique, we shed light on the correlation between the microstructural configuration and the electrochemical performance of Zn-doped LiMn2O4. We demonstrate that part of Zn2+ ions dope into the spinel to form LiZnxMn2-xO4 in bulk and other Zn2+ ions occupy the 8a sites of the spinel to form the ZnMn2O4 shell on the outermost surface. This in situ formed core-shell LiZnxMn2-xO4@ZnMn2O4 contributes to better structural stabilization, presenting a superior capacity retention ratio of 95.8% after 700 cycles at 5 C at 25 °C for the optimized sample (LiZn0.02Mn1.98O4), with an initial value of 80 mAh g-1. Our investigations not only provide an effective way toward high-performance LIBs but also shed light on the fundamental interplay between the microstructural configuration and the electrochemical performance of Zn-doped spinel LiMn2O4.
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Affiliation(s)
- Wangqiong Xu
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
- College of Physics and Electronic Engineering, Qujing Normal University, Qujing 655011, China
| | - Chengzhen Song
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Ruijuan Qi
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Yonghui Zheng
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Yuning Wu
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Yan Cheng
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Hui Peng
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Hechun Lin
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Rong Huang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics Sciences, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, Shanxi, China
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14
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Yang L, Liu Z, Li S, Hu Z, Kong Q, Shen X, Liu Q, Zhu H, Chen JM, Haw SC, Gao Y, Yingying W, Su D, Wang X, Yu R, Wang Z, Chen L. Vacancy-enhanced oxygen redox and structural stability of spinel Li 2Mn 3O 7-x. Chem Commun (Camb) 2022; 58:11685-11688. [PMID: 36173359 DOI: 10.1039/d2cc03259g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vacancies have been proved effective in activating the oxygen redox and stabilizing the structure of the oxide cathode materials for the Na-ion batteries, but their effect on the cathode materials of the Li-ion batteries is unclear. We herein show that they have similar effect on spinel [Li4/7Mn2/7□1/7]8a[Li4/7Mn10/7]16d[O4-x']32e.
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Affiliation(s)
- Lu Yang
- Key Laboratory for Renewable Energy, Chinese Academy of Sciences, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,College of Material Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zepeng Liu
- Key Laboratory for Renewable Energy, Chinese Academy of Sciences, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Shuwei Li
- Key Laboratory for Renewable Energy, Chinese Academy of Sciences, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Dresden, 01187, Germany
| | - Qingyu Kong
- Synchrotron Soleil L'Orme des Merisiers St-Aubin Gif-sur-Yvette Cedex, 91192, France.,School of Physical Science and Information Technology, Liaocheng University, Liaocheng, 252059, China
| | - Xi Shen
- Laboratory for Advanced Materials and Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, China
| | - He Zhu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, China
| | - Jin-Ming Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Shu-Chih Haw
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yurui Gao
- Laboratory of Theoretical and Computational Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, China
| | - Wang Yingying
- Laboratory for Advanced Materials and Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dong Su
- Laboratory for Advanced Materials and Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xuefeng Wang
- College of Material Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China. .,Laboratory for Advanced Materials and Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Richeng Yu
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China. .,Laboratory for Advanced Materials and Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhaoxiang Wang
- Key Laboratory for Renewable Energy, Chinese Academy of Sciences, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,College of Material Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China. .,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Liquan Chen
- Key Laboratory for Renewable Energy, Chinese Academy of Sciences, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
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15
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Sun X, Xiao R, Yu X, Li H. Screening LiMn 2O 4 Surface Modification Schemes under Theoretical Guidance. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10353-10362. [PMID: 35179368 DOI: 10.1021/acsami.1c23478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mn dissolution is one of the most important factors for the failure of LiMn2O4 batteries. Doping has been widely adopted in the modification of LiMn2O4 cathodes; however, there is still a lack of theoretical guidance on screening the dopants. Here, through first-principles calculations, we systematically investigated the effects of all 3, 4d transition metals as well as Mg, Ca, Sr, Al, Ga, and In on the surface oxygen stability of LiMn2O4 cathodes, which has been proved to be correlated with the stability of the surface Mn atoms. Six competitive dopants, namely Nb, Ru, Mo, V, Tc, and Ti, were screened out. Besides, for three dopants in low valence states (Mg, Cu, and Zn), their Li-site doping can more effectively stabilize the surface oxygen atoms compared with Mn-site doping. Finally, we synthesized LiMn2O4 samples with Mg, Mo, and Nb surface doping to validate the rationality of the computational results. We found that particle morphology should also be considered in addition to surface oxygen stability for controlling Mn dissolution. Moreover, the electrochemical performance of LiMn2O4 batteries is a more complex issue and cannot be solely regulated by Mn dissolution. During the experiments, we have explored novel efficient binary chromogenic reagents for ultraviolet-visible spectroscopy analysis that can be used for rapid and low-cost Mn dissolution detection. This work provides a paradigm for the systematic design of the surface modification of the LiMn2O4 cathode under theoretical guidance.
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Affiliation(s)
- Xiaorui Sun
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruijuan Xiao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiqian Yu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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16
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Liang Q, Wang Z, Bai W, Guo J, Xiang M, Liu X, Bai H. Stimulative formation of truncated octahedral LiMn 2O 4 by Cr and Al co-doping for use in durable cycling Li-ion batteries. Dalton Trans 2021; 50:17052-17061. [PMID: 34779450 DOI: 10.1039/d1dt03221f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The rational design of the unique morphology of particles has been considered as the key to improving the structural stability of spinel LiMn2O4 cathode materials for Li-ion batteries. Herein, a facile solid-state combustion process, combined with a Cr and Al co-doping approach, is proposed to prepare various LiCr0.01AlxMn1.99-xO4 (x ≤ 0.10) cathode materials with a good crystallinity. Cr and Al co-doping facilitates the formation of a single crystal truncated octahedral morphology. This endows the as-prepared LiCr0.01AlxMn1.99-xO4 with abundant {111} planes for Mn dissolution reduction and a few {100} and {110} planes for Li+ ion fast diffusion channels. Moreover, the introduction of Cr and Al elements with a stable electronic configuration further boosts the structural stability of the spinel LiMn2O4 owing to the relatively robust Al-O and Cr-O bonds compared with the Mn-O bond. Owing to these advantages, the optimal LiCr0.01Al0.05Mn1.94O4 delivers a good electrochemical performance with a high first discharge capacity of 118.5 mA h g-1 and a capacity retention of 70.8% after 1000 cycles at 1 C. Even at relatively high current rates of 15 and 20 C, a durable and prolonged cycling performance of up to 3000 cycles can be achieved. In addition, a high-temperature capacity retention of 72.1% is also maintained after 200 cycles at 5 C under 55 °C. This work provides potential candidates for developing long-life Li-ion batteries with a simultaneously high capacity.
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Affiliation(s)
- Qimei Liang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China.
| | - Zilin Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China.
| | - Wei Bai
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China. .,Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Junming Guo
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China. .,Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Mingwu Xiang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China. .,Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Xiaofang Liu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China. .,Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Yunnan Minzu University, Kunming 650500, Yunnan, China
| | - Hongli Bai
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, Yunnan, China. .,Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Yunnan Minzu University, Kunming 650500, Yunnan, China
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