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Seenivasan M, Yang CC, Wu SH, Chang JK, Jose R. Systematic study of Co-free LiNi 0.9Mn 0.07Al 0.03O 2 Ni-rich cathode materials to realize high-energy density Li-ion batteries. J Colloid Interface Sci 2024; 661:1070-1081. [PMID: 38368230 DOI: 10.1016/j.jcis.2024.02.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/29/2024] [Accepted: 02/04/2024] [Indexed: 02/19/2024]
Abstract
The growing use of EVs and society's energy needs require safe, affordable, durable, and eco-friendly high-energy lithium-ion batteries (LIBs). To this end, we synthesized and investigated the removal of Co from Al-doped Ni-rich cathode materials, specifically LiNi0.9Co0.1Al0.0O2 (NCA-0), LiNi0.9Mn0.1Al0.0O2 (NMA-0), LiNi0.9Mn0.07Al0.03O2 (NMA-3), intending to enhance LIB performance and reduce the reliance on cobalt, a costly and scarce resource. Our study primarily focuses on how the removal of Co affects the material characteristics of Ni-rich cathode material and further introduces aluminum into the cathode composition to study its impacts on electrochemical properties and overall performance. Among the synthesized samples, we discovered that the NMA-3 sample, modified with 3 mol% of Al, exhibited superior battery performance, demonstrating the effectiveness of aluminum in promoting cathode stability. Furthermore, the Al-modified cathode showed promising cycle life under normal and high-temperature conditions. Our NMA-3 demonstrated remarkable capacity retention of ∼ 88 % at 25 °C and ∼ 81 % at 45 °C after 200 cycles at 1C, within a voltage range of 2.8-4.3 V, closely matching the performances of conventional NCM and NCA cathodes. Without cobalt, the cathodes exhibited increased cation disorder leading to inferior rate capabilities at high C-rates. In-situ transmission XRD analysis revealed that the introduction of Al has reduced the phase change and provided much-needed stability to the overall structure of the Co-free NMA-3. Altogether, the findings suggest that our aluminum-modified NMA-3 sample offers a promising approach to developing Co-free, Ni-rich cathodes, effectively paving the way toward sustainable, high-energy-density LIBs.
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Affiliation(s)
- Manojkumar Seenivasan
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC
| | - Chun-Chen Yang
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC; Department of Chemical and Materials Engineering & Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan City 333, Taiwan.
| | - She-Huang Wu
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC; Graduate Institute of Science and Technology, National Taiwan University of Science and Technology, 43, Sec. 4, Keelung Road, Taipei 106, Taiwan, ROC
| | - Jeng-Kuei Chang
- Department of Materials Science and Engineering, National Yang-Ming Chiao Tung University, 1001 University Road, Hsinchu, 30010, Taiwan, ROC
| | - Rajan Jose
- Nanostructured Renewable Energy Materials Laboratory, Faculty of Industrial Sciences and Technology, University Malaysia Pahang, 26300 Kuantan, Malaysia
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2
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Dai Z, Liu Y, Lu X, Zhao H, Bai Y. Ultra-High Temperature Operated Ni-Rich Cathode Stabilized by Thermal Barrier for High-Energy Lithium-Ion Batteries. Adv Mater 2024:e2313500. [PMID: 38472160 DOI: 10.1002/adma.202313500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/24/2024] [Indexed: 03/14/2024]
Abstract
The pursuit of high energy density batteries has expedited the fast development of Ni-rich cathodes. However, the chemo-mechanical degradation induced by local thermal accumulation and anisotropic lattice strain is posing great obstacles for its wide applications. Herein, a highly-antioxidative BaZrO3 thermal barrier engineered LiNi0.8 Co0.1 Mn0.1 O2 cathode through an in situ construction strategy is first reported to circumvent the above issues. It is found that the Zr ions are incorporated to Ni-rich material lattice and influence on the topotactic lithiation as well as enhance the oxygen electronegativity through the rigid Zr─O bonds, which effectively alleviates the lattice strain propagation and decreases the excessive oxidization of lattice oxygen for charge compensation. More importantly, the BaZrO3 thermal barrier with an ultra-low thermal conductivity validly impedes the fast heat exchange between electrode and electrolyte to mitigate the severe surface side reactions. This helps an ultra-high mass loading Li-ion pouch cell deliver a specific energy density of 690 Wh kg-1 at active material level and an excellent capacity retention of 92.5% after 1400 cycles under 1 C at 25 °C. Tested at a high temperature of 55 °C, the pouch type full-cell also exhibits 88.7% in capacity retention after 1200 cycles.
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Affiliation(s)
- Zhongsheng Dai
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, 475004, P. R. China
| | - Yun Liu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Xia Lu
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Huiling Zhao
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, 475004, P. R. China
| | - Ying Bai
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, 475004, P. R. China
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3
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Han Q, Yu H, Cai L, Chen L, Li C, Jiang H. Unique insights into the design of low-strain single-crystalline Ni-rich cathodes with superior cycling stability. Proc Natl Acad Sci U S A 2024; 121:e2317282121. [PMID: 38416683 DOI: 10.1073/pnas.2317282121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/06/2024] [Indexed: 03/01/2024] Open
Abstract
Micro-sized single-crystalline Ni-rich cathodes are emerging as prominent candidates owing to their larger compact density and higher safety compared with poly-crystalline counterparts, yet the uneven stress distribution and lattice oxygen loss result in the intragranular crack generation and planar gliding. Herein, taking LiNi0.83Co0.12Mn0.05O2 as an example, an optimal particle size of 3.7 µm is predicted by simulating the stress distributions at various states of charge and their relationship with fracture free-energy, and then, the fitted curves of particle size with calcination temperature and time are further built, which guides the successful synthesis of target-sized particles (m-NCM83) with highly ordered layered structure by a unique high-temperature short-duration pulse lithiation strategy. The m-NCM83 significantly reduces strain energy, Li/O loss, and cationic mixing, thereby inhibiting crack formation, planar gliding, and surface degradation. Accordingly, the m-NCM83 exhibits superior cycling stability with highly structural integrity and dual-doped m-NCM83 further shows excellent 88.1% capacity retention.
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Affiliation(s)
- Qiang Han
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haifeng Yu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Lele Cai
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ling Chen
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunzhong Li
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Jiang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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4
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Lee JA, Kim S, Cho Y, Kweon SH, Kang H, Byun JH, Kwon E, Seo S, Kim W, Ryu KH, Kwak SK, Hong S, Choi NS. Compositionally Sequenced Interfacial Layers for High-Energy Li-Metal Batteries. Adv Sci (Weinh) 2024:e2310094. [PMID: 38408139 DOI: 10.1002/advs.202310094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Indexed: 02/28/2024]
Abstract
Electrolyte additives with multiple functions enable the interfacial engineering of Li-metal batteries (LMBs). Owing to their unique reduction behavior, additives exhibit a high potential for electrode surface modification that increases the reversibility of Li-metal anodes by enabling the development of a hierarchical solid electrolyte interphase (SEI). This study confirms that an adequately designed SEI facilitates the homogeneous supply of Li+ , nonlocalized Li deposition, and low electrolyte degradation in LMBs while enduring the volume fluctuation of Li-metal anodes on cycling. An in-depth analysis of interfacial engineering mechanisms reveals that multilayered SEI structures comprising mechanically robust LiF-rich species, electron-rich P-O species, and elastic polymeric species enabled the stable charge and discharge of LMBs. The polymeric outer SEI layer in the as-fabricated multilayered SEI could accommodate the volume fluctuation of Li-metal anodes, significantly enhancing the cycling stability Li||LiNi0.8 Co0.1 Mn0.1 O2 full cells with an electrolyte amount of 3.6 g Ah-1 and an areal capacity of 3.2 mAh cm-2 . Therefore, this study confirms the ability of interfacial layers formed by electrolyte additives and fluorinated solvents to advance the performance of LMBs and can open new frontiers in the fabrication of high-performance LMBs through electrolyte-formulation engineering.
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Affiliation(s)
- Jeong-A Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Saehun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yoonhan Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seong Hyeon Kweon
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Haneul Kang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jeong Hwan Byun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Eunji Kwon
- CTO Advanced Battery Development, Hyundai motor company, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Samuel Seo
- CTO Advanced Battery Development, Hyundai motor company, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Wonkeun Kim
- CTO Advanced Battery Development, Hyundai motor company, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Kyoung Han Ryu
- CTO Advanced Battery Development, Hyundai motor company, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Sang Kyu Kwak
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Seungbum Hong
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Nam-Soon Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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5
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Haworth AR, Johnston BIJ, Wheatcroft L, McKinney SL, Tapia-Ruiz N, Booth SG, Nedoma AJ, Cussen SA, Griffin JM. Structural Insight into Protective Alumina Coatings for Layered Li-Ion Cathode Materials by Solid-State NMR Spectroscopy. ACS Appl Mater Interfaces 2024; 16:7171-7181. [PMID: 38306452 PMCID: PMC10875645 DOI: 10.1021/acsami.3c16621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/20/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Layered transition metal oxide cathode materials can exhibit high energy densities in Li-ion batteries, in particular, those with high Ni contents such as LiNiO2. However, the stability of these Ni-rich materials often decreases with increased nickel content, leading to capacity fade and a decrease in the resulting electrochemical performance. Thin alumina coatings have the potential to improve the longevity of LiNiO2 cathodes by providing a protective interface to stabilize the cathode surface. The structures of alumina coatings and the chemistry of the coating-cathode interface are not fully understood and remain the subject of investigation. Greater structural understanding could help to minimize excess coating, maximize conductive pathways, and maintain high capacity and rate capability while improving capacity retention. Here, solid-state nuclear magnetic resonance (NMR) spectroscopy, paired with powder X-ray diffraction and electron microscopy, is used to provide insight into the structures of the Al2O3 coatings on LiNiO2. To do this, we performed a systematic study as a function of coating thickness and used LiCoO2, a diamagnetic model, and the material of interest, LiNiO2. 27Al magic-angle spinning (MAS) NMR spectra acquired for thick 10 wt % coatings on LiCoO2 and LiNiO2 suggest that in both cases, the coatings consist of disordered four- and six-coordinate Al-O environments. However, 27Al MAS NMR spectra acquired for thinner 0.2 wt % coatings on LiCoO2 identify additional phases believed to be LiCo1-xAlxO2 and LiAlO2 at the coating-cathode interface. 6,7Li MAS NMR and T1 measurements suggest that similar mixing takes place near the interface for Al2O3 on LiNiO2. Furthermore, reproducibility studies have been undertaken to investigate the effect of the coating method on the local structure, as well as the role of the substrate.
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Affiliation(s)
- Abby R. Haworth
- Department
of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Beth I. J. Johnston
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Laura Wheatcroft
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Sarah L. McKinney
- Department
of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K.
- Department
of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, London W12 0BZ, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Nuria Tapia-Ruiz
- Department
of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, London W12 0BZ, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Sam G. Booth
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Alisyn J. Nedoma
- Department
of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - Serena A. Cussen
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
| | - John M. Griffin
- Department
of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K.
- The
Faraday Institution, Quad One, Harwell Campus, Didcot OX11 0RA, U.K.
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6
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Deng Y, Zhao S, Chen Y, Wan S, Chen S. Wide-Temperature and High-Rate Operation of Lithium Metal Batteries Enabled by an Ionic Liquid Functionalized Quasi-Solid-State Electrolyte. Small 2024:e2310534. [PMID: 38326097 DOI: 10.1002/smll.202310534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/07/2024] [Indexed: 02/09/2024]
Abstract
The development of high-energy-density solid-state lithium metal battery has been hindered by the unstable cycling of Ni-rich cathodes at high rate and limited wide-temperatures adoptability. In this study, an ionic liquid functionalized quasi-solid-state electrolyte (FQSE) is prepared to address these challenges. The FQSE features a semi-immobilized ionic liquid capable of anchoring solvent molecules through electrostatic interactions, which facilitates Li+ desolvation and reduces deleterious solvent-cathode reactions. The FQSE exhibits impressive electrochemical characteristics, including high ionic conductivity (1.9 mS cm-1 at 30 °C and 0.2 mS cm-1 at -30 °C) and a Li+ transfer number of 0.7. Consequently, Li/NCM811 cells incorporating FQSE demonstrate exceptional stability during high-rate cycling, enduring 700 cycles at 1 C. Notably, the Li/LFP cells with FQSE maintain high capacity across a wide temperature range, from -30 to 60 °C. This research provides a new way to promote the practical application of high-energy lithium metal batteries.
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Affiliation(s)
- Yonghui Deng
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shunshun Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yong Chen
- UTS School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Shuang Wan
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shimou Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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7
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Meng F, Zhang H, Xiong X, Li X, Wu R, Han Q, Qin B, Yuan B, Hu R. Revealing the Subzero-Temperature Electrochemical Kinetics Behaviors in Ni-Rich Cathode. Small 2024; 20:e2304806. [PMID: 37649194 DOI: 10.1002/smll.202304806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/05/2023] [Indexed: 09/01/2023]
Abstract
The sluggish kinetics in Ni-rich cathodes at subzero temperatures causes decreased specific capacity and poor rate capability, resulting in slow and unstable charge storage. So far, the driving force of this phenomenon remains a mystery. Herein, with the help of in-situ X-ray diffraction and time of flight secondary ion mass spectrometry techniques, the continuous accumulation of both the cathode electrolyte interphase (CEI) film formation and the incomplete structure evolution during cycling under subzero temperature are proposed. It is presented that excessively uniform and thick CEI film generated at subzero temperatures would block the diffusion of Li+ -ions, resulting in incomplete phase evolution and clear charge potential delay. The incomplete phase evolution throughout the Li+ -ion intercalation/de-intercalation processes would further cause low depth of discharge and poor electrochemical reversibility with low initial Coulombic efficiency, as well. In addition, the formation of the thick and uniform CEI film would also consume Li+ -ions during the charging process. This discovery highlights the effects of the CEI film formation behavior and incomplete phase evolution in restricting electrochemical kinetics under subzero temperatures, which the authors believe would promote the further application of the Ni-rich cathodes.
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Affiliation(s)
- Fanbo Meng
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
| | - Haolin Zhang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
| | - Xingyu Xiong
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
| | - Xiangjie Li
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
| | - Rufeng Wu
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
- Guangdong Jinsheng New Energy Co Ltd, Zhaoqing, 526116, China
| | - Qiying Han
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
- Guangdong Jinsheng New Energy Co Ltd, Zhaoqing, 526116, China
| | - Bo Qin
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
- Guangdong Jinsheng New Energy Co Ltd, Zhaoqing, 526116, China
| | - Bin Yuan
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
| | - Renzong Hu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Mater., South China University of Technology, Guangzhou, 510640, China
- Guangdong Province Wsaste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing, 526116, China
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8
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Wang Z, Wei W, Zhang T, Yu H, Li C, Chen L, Jiang H. Perovskite Oxides Alleviate Microstrain and Anion Loss of Radially-Aligned Ni-Rich Ncm811 Cathodes under High-Voltage Operations. Small 2024; 20:e2306160. [PMID: 37715337 DOI: 10.1002/smll.202306160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/02/2023] [Indexed: 09/17/2023]
Abstract
The energy density of Ni-rich cathodes is expected to be further unlocked by increasing the cut-off voltage to above 4.3 V, which nevertheless come with significantly increased irreversible phase transition and abundant side reactions. In this study, the perovskite oxides enhanced radial-aligned LiNi0.8 Co0.1 Mn0.1 O2 (NCM811) cathodes are reported, in which the coherent-growth La2 [LiTM]O4 clusters are evenly riveted into the crystals and the stable Lax Ca1- x [TM]O3- x protective layer is concurrently formed on the surface. The reciprocal interactions greatly reduce the lattice strain during de-/lithiation. Meantime, the abundant oxygen vacancies of the coating layer are proved to reversibly capture (state of charge) and re-release (state of discharge) the oxygen radicals, fully avoiding their correlative side reactions. The resultant NCM811 displays negligible O2 and CO2 emissions when charging to 4.5 V as well as a thinner CEI film, therefore delivering a large capacity of 225 mAh g-1 at 0.1C in coin-type half-cells and a high retention of 88.3% after 1000 cycles at 1C in pouch-type full-cells within 2.7-4.5 V. The development of high-voltage Ni-rich cathodes exhibits a highly effective pathway to further increase their energy density.
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Affiliation(s)
- Zhihong Wang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Wu Wei
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Tao Zhang
- State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Haifeng Yu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chunzhong Li
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Ling Chen
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hao Jiang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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9
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Hou Y, Li C, Ren D, He F, Zhuang K, Yin S, Yuan G, Wang Y, Guo Y, Liu S, Sun P, Zhang Z, Tan T, Zhu G, Lu L, Liu X, Ouyang M. Enabling Electrochemical-Mechanical Robustness of Ultra-High Ni Cathode via Self-Supported Primary-Grain-Alignment Strategy. Adv Sci (Weinh) 2023; 10:e2306347. [PMID: 37882358 PMCID: PMC10754075 DOI: 10.1002/advs.202306347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/10/2023] [Indexed: 10/27/2023]
Abstract
The electrochemical-mechanical degradation of ultrahigh Ni cathode for lithium-ion batteries is a crucial aspect that limits the cycle life and safety of devices. Herein, the study reports a facile strategy involving rational design of primary grain crystallographic orientation within polycrystalline cathode, which well enhanced its electro-mechanical strength and Li+ transfer kinetics. Ex situ and in situ experiments/simulations including cross-sectional particle electron backscatter diffraction (EBSD), single-particle micro-compression, thermogravimetric analysis combined with mass spectrometry (TGA-MS), and finite element modeling reveal that, the primary-grain-alignment strategy effectively mitigates the particle pulverization, lattice oxygen release thereby enhances battery cycle life and safety. Besides the preexisting doping and coating methodologies to improve the stability of Ni-rich cathode, the primary-grain-alignment strategy, with no foreign elements or heterophase layers, is unprecedently proposed here. The results shed new light on the study of electrochemical-mechanical strain alleviation for electrode materials.
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Affiliation(s)
- Yu‐Kun Hou
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
- Prof. Ouyang Minggao Academician WorkstationSichuan new Energy Vehicle innovation Center Co., Ltd.Yibin644000China
| | - Chenxi Li
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Dongsheng Ren
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
| | - Feixiong He
- Prof. Ouyang Minggao Academician WorkstationSichuan new Energy Vehicle innovation Center Co., Ltd.Yibin644000China
| | - Kaijun Zhuang
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
- School of Control and Computer EngineeringNorth China Electric Power UniversityBeijing102208China
| | - Shuo Yin
- CNGR advanced material Co., Ltd.Tongren554000China
| | - Guohe Yuan
- CNGR advanced material Co., Ltd.Tongren554000China
| | - Yiqiao Wang
- CNGR advanced material Co., Ltd.Tongren554000China
| | - Yi Guo
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
| | - Saiyue Liu
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
| | - Peng Sun
- Changzhou Institute of Advanced Manufacturing Technology213000ChangzhouChina
| | - Zhihua Zhang
- Changzhou Institute of Advanced Manufacturing Technology213000ChangzhouChina
| | - Tiening Tan
- Prof. Ouyang Minggao Academician WorkstationSichuan new Energy Vehicle innovation Center Co., Ltd.Yibin644000China
| | - Gaolong Zhu
- Prof. Ouyang Minggao Academician WorkstationSichuan new Energy Vehicle innovation Center Co., Ltd.Yibin644000China
| | - Languang Lu
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
| | - Xiang Liu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Minggao Ouyang
- School of Vehicle and MobilityTsinghua UniversityBeijing100084China
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10
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Nie W, Tang Y, Cheng H, Tian F, Sun Q, Lu X, Zhao Y. Building Negative-Thermal-Expansion Protective Layers on the Grain Boundary of Ni-rich Cathodes Enables Safe and Durable High Voltage Lithium-Ion Batteries. Small 2023; 19:e2306351. [PMID: 37635121 DOI: 10.1002/smll.202306351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/17/2023] [Indexed: 08/29/2023]
Abstract
Ni-rich layered oxide cathode materials demonstrate high energy densities for Li-ion batteries, but the electrochemically driven thermal runaway and mechanical degradation remain their long-standing challenges in practical applications. Herein, it presents a novel ZrV2 O7 (ZVO) coating with negative thermal expansion properties along the secondary particles and primary particle grain boundaries (GBs), to simultaneously enhance the structural and thermal stability of LiNi0.8 Co0.1 Mn0.1 O2 (NCM811). It unveils that, such an architecture can significantly enhance the electronic conductivity, suppress the microcracks of GBs, alleviate the layered to spinel/rock-salt phase transformation, and meanwhile relieve the lattice oxygen loss by increasing the oxygen vacancy formation energy increased (1.43 vs 1.90 eV). Consequently, the ZVO-coated NCM811 material demonstrates a remarkable cyclability with 86.5% capacity retention after 100 cycles, and an outstanding rate performance of 30 C under a high-voltage of 4.6 V, outperforming the state-of-the-art literature. More importantly, the Li+ transportation can be readily blocked at 120 °C by the negative-thermal-expansion ZVO coating, thus avoiding the high-temperature thermal runaway.
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Affiliation(s)
- Wei Nie
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Yongfu Tang
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Hongwei Cheng
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Feng Tian
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Qiangchao Sun
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Xionggang Lu
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Yufeng Zhao
- State Key Laboratory of Advanced Special Steel & School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
- College of Sciences & Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, P. R. China
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11
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Zhou Y, Zhang H, Wang Y, Wan T, Guan P, Zhou X, Wang X, Chen Y, Shi H, Dou A, Su M, Guo R, Liu Y, Dai L, Chu D. Relieving Stress Concentration through Anion-Cation Codoping toward Highly Stable Nickel-Rich Cathode. ACS Nano 2023; 17:20621-20633. [PMID: 37791899 DOI: 10.1021/acsnano.3c07655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Nickel-rich LiNi0.8Co0.15Al0.015O2 (NCA) with excellent energy density is considered one of the most promising cathodes for lithium-ion batteries. Nevertheless, the stress concentration caused by Li+/Ni2+ mixing and oxygen vacancies leads to the structural collapse and obvious capacity degradation of NCA. Herein, a facile codoping of anion (F-)-cation (Mg2+) strategy is proposed to address these problems. Benefiting from the synergistic effect of F- and Mg2+, the codoped material exhibits alleviated Li+/Ni2+ mixing and demonstrates enhanced electrochemical performance at high voltage (≥4.5 V), outperformed the pristine and F-/Mg2+ single-doped counterparts. Combined experimental and theoretical studies reveal that Mg2+ and F- codoping decreases the Li+ diffusion energy barrier and enhances the Li+ transport kinetics. In particular, the codoping synergistically suppresses the Li+/Ni2+ mixing and lattice oxygen escape, and alleviates the stress-strain accumulation, thereby inhibiting crack propagation and improving the electrochemical performance of the NCA. As a consequence, the designed Li0.99Mg0.01Ni0.8Co0.15Al0.05O0.98F0.02 (Mg1+F2) demonstrates a much higher capacity retention of 82.65% than NCA (55.69%) even after 200 cycles at 2.8-4.5 V under 1 C. Furthermore, the capacity retention rate of the Mg1+F2||graphite pouch cell after 500 cycles is 89.6% compared to that of the NCA (only 79.4%).
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Affiliation(s)
- Yu Zhou
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hanwei Zhang
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yinglei Wang
- Thermal Science Research Center, Shandong Institute of Advanced Technology, Jinan, Shandong Province 250103, China
- Institute of Thermal Science and Technology, Shandong University, Jinan, Shandong Province 250061, China
| | - Tao Wan
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2502, Australia
| | - Peiyuan Guan
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2502, Australia
| | - Xindong Zhou
- Hunan Changyuan Lico Co., Ltd, Changsha 410025, China
| | - Xuri Wang
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yichang Chen
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hancheng Shi
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Aichun Dou
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mingru Su
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ruiqiang Guo
- Thermal Science Research Center, Shandong Institute of Advanced Technology, Jinan, Shandong Province 250103, China
| | - Yunjian Liu
- School of Material science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Liming Dai
- Australian Carbon Materials Centre (A-CMC), School of Chemical Engineering, The University of New South Wales Sydney, Sydney, NSW 2052, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2502, Australia
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12
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Huang Q, Zhang X, Lv X, Wang X, Wen W, Wu F, Chen R, Li L. Electrochemical Aging Protocol Governed Capacity Losses and Structure Degradations in Layered LiNi 0.8 Co 0.1 Mn 0.1 O 2 Oxides. Small 2023; 19:e2302086. [PMID: 37323104 DOI: 10.1002/smll.202302086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/16/2023] [Indexed: 06/17/2023]
Abstract
The comparatively poor endurance of Ni-rich cathode materials restricts their application in high-energy lithium-ion batteries. A thorough understanding of the degradation characteristics of such materials under complex electrochemical aging protocols is required to further improve their reliability. In this work, the irreversible capacity losses of LiNi0.8 Mn0.1 Co0.1 O2 under different electrochemical aging protocols are quantitatively evaluated via a well-designed experiment. In addition, it is discovered that the origin of irreversible capacity losses is highly related to electrochemical cycling parameters and can be divided into two types. Type I is heterogeneous degradation caused by low C-rate or high upper cut-off voltage cycling and features abundant capacity loss during H2-H3 phase transition. Such capacity loss is attributed to the irreversible surface phase transition that limits the accessible state of charge during the H2-H3 phase transition stage via the pinning effect. Type II is fast charging/discharging induced homogeneous capacity loss that occurs consistently throughout the whole phase transition time. This degradation pathway shows a distinctive surface crystal structure, which is dominated by a bending layered structure rather than a typical rock-salt phase structure. This work offers detailed insight into the failure mechanism of Ni-rich cathodes and provides guidance on designing long-cycle life, high-reliability electrode materials.
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Affiliation(s)
- Qingrong Huang
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiaodong Zhang
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiaowei Lv
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiaoqi Wang
- Petro China Research Institute of Petroleum Exploration & Development, Beijing, 100083, P. R. China
| | - Wen Wen
- Petro China Research Institute of Petroleum Exploration & Development, Beijing, 100083, P. R. China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, P. R. China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, P. R. China
| | - Renjie Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, P. R. China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, P. R. China
| | - Li Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, P. R. China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, P. R. China
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13
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Kim J, Lee W, Seok J, Kim M, Park S, Lee H, Kim YJ, Yoon WS. Critical Factors to Understanding the Electrochemical Performance of All-Solid-State Batteries: Solid Interfaces and Non-Zero Lattice Strain. Small 2023; 19:e2304269. [PMID: 37317038 DOI: 10.1002/smll.202304269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/01/2023] [Indexed: 06/16/2023]
Abstract
All-solid-state lithium batteries have been developed to secure safety by substituting a flammable liquid electrolyte with a non-flammable solid electrolyte. However, owing to the nature of solids, interfacial issues between cathode materials and solid electrolytes, including chemical incompatibility, electrochemo-mechanical behavior, and physical contact, pose significant challenges for commercialization. Herein, critical factors for understanding the performance of all-solid-state batteries in terms of solid interfaces and non-zero lattice strains are identified through a strategic approach. The initial battery capacity can be increased via surface coating and electrode-fabrication methods; however, the increased lattice strain causes significant stress to the solid interface, which degrades the battery cycle life. However, this seesaw effect can be alleviated using a more compacted electrode microstructure between the solid electrolyte and oxide cathode materials. The compact solid interfaces contribute to low charge-transfer resistance and a homogeneous reaction between particles, thereby leading to improved electrochemical performance. These findings demonstrate, for the first time, a correlation between the uniformity of the electrode microstructure and electrochemical performance through the investigation of the reaction homogeneity among particles. Additionally, this study furthers the understanding of the relationship between electrochemical performance, non-zero lattice strain, and solid interfaces.
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Affiliation(s)
- Jaeyoung Kim
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Wontae Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jangwhan Seok
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Minji Kim
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sangbin Park
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyunbeom Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Young-Jun Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Won-Sub Yoon
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea
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14
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Wang Z, Wei W, Han Q, Zhu H, Chen L, Hu Y, Jiang H, Li C. Isotropic Microstrain Relaxation in Ni-Rich Cathodes for Long Cycling Lithium Ion Batteries. ACS Nano 2023; 17:17095-17104. [PMID: 37610225 DOI: 10.1021/acsnano.3c04773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Developing isotropic-dominated microstrain relaxation is a vital step toward the enhancement of cyclic performance and thermal stability for high-energy-density Ni-rich cathodes. Here, a microstructure engineering strategy is employed for synthesizing the elongated primary particles radially aligned Ni-rich cathodes only by regulating the precipitation rates of cations and the distributions of flow field. The as-obtained cathode also exhibits an enlarged lattice distance and highly exposed (003) plane. The high aspect ratio and favorable atomic arrangement of primary particles not only enable isotropic strain relaxation for effectively suppressing microcrack formation and propagation, but also facilitate Li-ion diffusion with greatly reduced Li/Ni mixing. Consequently, it shows obvious superiority in the high-rate, long-cycle life, and thermal stability compared with the conventional counterparts. After modification, an exceptionally long life is achieved with a capacity retention of 90.1% at 1C and 84.3% at 5C after 1500 cycles within 3.0-4.3 V in a 1.5-Ah pouch cell. This work offers a universal strategy to achieve isotropic strain distribution for conveniently enhancing the durability of Ni-rich cathodes.
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Affiliation(s)
- Zhihong Wang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wu Wei
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qiang Han
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Huawei Zhu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ling Chen
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanjie Hu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Jiang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunzhong Li
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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15
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Jeyakumar J, Seenivasan M, Wu YS, Wu SH, Chang JK, Jose R, Yang CC. Preparation of long-term cycling stable ni-rich concentration-gradient NCMA cathode materials for li-ion batteries. J Colloid Interface Sci 2023; 639:145-159. [PMID: 36804788 DOI: 10.1016/j.jcis.2023.02.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Nickel-rich (Ni > 90 %) cathodes are regarded as one of the most attractive because of their high energy density, despite their poor stability and cycle life. To improve their performance, in this study we synthesized a double concentration-gradient layered Li[Ni0.90Co0.04Mn0.03Al0.03]O2 oxide (CG-NCMA) using a continuous co-precipitation Taylor-Couette cylindrical reactor (TCCR) with a Ni-rich-core, an Mn-rich surface, and Al on top. The concentration-gradient morphology was confirmed through cross-sectional EDX line scanning. The as-synthesized sample exhibited excellent electrochemical performance at high rates (5C/10C), as well as cyclability (91.5 % after 100 cycles and 70.3 % after 500 cycles at 1C), superior to that (83.4 % and 47.6 %) of its non-concentration-gradient counterpart (UC-NCMA). The Mn-rich surface and presence of Al helped the material stay structurally robust, even after 500 cycles, while also suppressing side reactions between the electrode and electrolyte, resulting in better overall electrochemical performance. These enhancements in performance were studied using TEM, SEM, in-situ-XRD, XPS, CV, EIS and post-mortem analyses. This synthetic method enables the highly scalable production of CG-NCMA samples with two concentration-gradient structures for practical applications in Li-ion batteries.
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Affiliation(s)
- Juliya Jeyakumar
- Battery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC; Department of Chemical Engineering, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC
| | - Manojkumar Seenivasan
- Battery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC; Department of Chemical Engineering, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC
| | - Yi-Shiuan Wu
- Battery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC
| | - She-Huang Wu
- Battery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC; Graduate Institute of Science and Technology, National Taiwan University of Science and Technology, 43, Sec. 4, Keelung Road, Taipei 106, Taiwan, ROC
| | - Jeng-Kuei Chang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan, ROC
| | - Rajan Jose
- Nanostructured Renewable Energy Materials Laboratory, Faculty of Industrial Sciences and Technology, University Malaysia Pahang, 26300 Kuantan, Malaysia
| | - Chun-Chen Yang
- Battery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC; Department of Chemical Engineering, Ming Chi University of Technology, Taishan, New Taipei, City 24301, Taiwan, ROC; Department of Chemical and Materials Engineering, and Green Technology Research Center, Chang Gung University, Taoyuan City 333, Taiwan, ROC.
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16
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Zhu H, Wang Z, Chen L, Hu Y, Jiang H, Li C. Strain Engineering of Ni-Rich Cathode Enables Exceptional Cyclability in Pouch-Type Full Cells. Adv Mater 2023; 35:e2209357. [PMID: 36515215 DOI: 10.1002/adma.202209357] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Ni-rich layered oxides are at the forefront of the development of high-energy Li-ion batteries, yet the extensive applications are retarded by the deteriorative capacity and thermal instability. Herein, an in situ co-precipitation strategy is implemented to achieve the novel super-dispersed Nb-doped Ni-rich cathode that consists of the elongated and radially aligned primary particles with increased oxygen stable {001} planes. The unique microstructure homogenizes the intragranular and intergranular strain distribution and stabilizes the spherical secondary particles, effectively inhibiting microcrack formation and propagation and surface degradation. The super-dispersed Nb doping prevents the Li/Ni disordering and lattice oxygen escape, thereby further strengthening the crystal structure and thermal stability. Accordingly, this cathode delivers a high reversible capacity of 229.0 mAh g-1 at 0.1 C with much better retention at 55 °C and 5 C after 100 cycles than the conventional Nb-doped Ni-rich cathodes. In a pouch-type full cell, it exhibits exceptionally long life with a capacity retention of 91.9% at 1 C after 500 cycles and 80.5% at 5 C after 2000 cycles within 3.0-4.2 V, greatly prolonging the service period to cater to the lightweight and intelligence of electric vehicles.
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Affiliation(s)
- Huawei Zhu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhihong Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Ling Chen
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yanjie Hu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hao Jiang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Chunzhong Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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17
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Zhu H, Yang T, Lee PK, Yin Z, Tang Y, Li T, Gallington LC, Ren Y, Yu DYW, Liu Q. High-Performance Layered Ni-Rich Cathode Materials Enabled by Stress-Resistant Nanosheets. ACS Appl Mater Interfaces 2023; 15:8046-8053. [PMID: 36723949 DOI: 10.1021/acsami.2c20405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Layered O3-type transition metal oxides are promising cathode candidates for high-energy-density Li-ion batteries. However, the structural instability at the highly delithiated state and low kinetics at the fully lithiated state are arduous challenges to overcome. Here, a facile approach is developed to make secondary particles of Ni-rich materials with nanosheet primary grains. Because the alignment of the primary grains reduces internal stress buildup within the particle during charge-discharge and provides straightforward paths for Li transport, the as-synthesized Ni-rich materials do not undergo cracking upon cycling with higher overall Li+ ion diffusion rates. Specifically, a LiNi0.75Co0.14Mn0.11O2 cathode with nanosheet grains delivers a high reversible capacity of 206 mAh g-1 and shows ultrahigh cycling stability, e.g., 98% capacity retention over 500 cycles in a full cell with a graphite anode.
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Affiliation(s)
- Hekang Zhu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Tingting Yang
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Pui-Kit Lee
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Zijia Yin
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yu Tang
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Tianyi Li
- X-Ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Leighanne C Gallington
- X-Ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yang Ren
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Denis Y W Yu
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Center for Green Research on Energy and Environmental Materials (GREEN), National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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18
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Ma L, Wang L, Liu T, Wu T, Lu J. Probing Distinctive Redox Mechanism in Ni-Rich Cathode Via Real-Time Quick X-Ray Absorption Spectroscopy. Small Methods 2023; 7:e2201173. [PMID: 36446636 DOI: 10.1002/smtd.202201173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Indexed: 06/16/2023]
Abstract
X-ray radiation damage on the measuring system has been a critical issue regularly for a long-time exposure to X-ray beam during the in operando characterizations, which is particularly severe when the applied X-ray energy is near the absorption edges (M, L, K, etc.) of the interest element. To minimize the negative effects raised by beam radiation, we employ quick X-ray absorption spectroscopy (QXAS) to study the electrochemical reaction mechanism of a Ni-rich layered structure cathode for lithium-ion batteries. With the advanced QXAS technique, the electronic structure and local coordination environment of the transition metals (TMs) are monitored in-operando with limited radiation damage. Compared to the conventional step-mode X-ray absorption spectroscopy, the QXAS can provide more reliable oxidation state change and more detailed local structure evolutions surrounding TMs (Ni and Co) in Ni-rich layered oxides. By leveraging these advantages of QXAS, we demonstrated that the Ni dominates the electrochemical process with the Co being almost electrochemically inactive. Reversible Ni ions movement between TMs sites and Li sites is also revealed by the time-resolved QXAS technique.
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Affiliation(s)
- Lu Ma
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Liguang Wang
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Tongchao Liu
- Chemical Science and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Tianpin Wu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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19
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Wu S, Zhang X, Ma S, Fan E, Lin J, Chen R, Wu F, Li L. A New Insight into the Capacity Decay Mechanism of Ni-Rich Layered Oxide Cathode for Lithium-Ion Batteries. Small 2022; 18:e2204613. [PMID: 36228105 DOI: 10.1002/smll.202204613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Understanding the mapping relationship between electrochemical characteristics and physicochemical properties of layered LiNi0.80 Co0.15 Al0.05 O2 (NCA) cathodes is important to develop high energy density lithium-ion batteries (LIBs). Combining in situ and ex situ characterization, the effect of the H2-H3 phase transition on the capacity decay and aging mechanism of NCA materials are systematically investigated. With the increase of cut-off voltage, the cathode electrolyte interphase (CEI) on the NCA interface shows an evolutionary path of formation-thickening-rupture. This phenomenon is closely related to the H2-H3 phase transition. The volumetric stresses and strains caused by the H2-H3 phase transition accelerate the formation and expansion of secondary particle microcracks in the electrode material, leading to the growth of interfacial CEI variations. The capacity of the electrode material can decrease even if the material does not experience the H2-H3 phase transition due to the persistence of interfacial side reactions with calendar aging from long cycles. This work opens up a valuable perspective for the study of the mapping relationship between phase transition and electrochemical properties in Ni-rich layered oxide cathodes and provides guidance for developing high capacity and long cycle life LIBs.
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Affiliation(s)
- Shumeng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiaodong Zhang
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Su Ma
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Ersha Fan
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China
| | - Jiao Lin
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Renjie Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
- Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou, Guangdong, 511447, China
| | - Li Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
- Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy Testing, Guangzhou, Guangdong, 511447, China
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20
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Shi JL, Sheng H, Meng XH, Zhang XD, Lei D, Sun X, Pan H, Wang J, Yu X, Wang C, Li Y, Guo YG. Size controllable single-crystalline Ni-rich cathodes for high-energy lithium-ion batteries. Natl Sci Rev 2022; 10:nwac226. [PMID: 36817832 PMCID: PMC9935991 DOI: 10.1093/nsr/nwac226] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/13/2022] Open
Abstract
A single-crystalline Ni-rich (SCNR) cathode with a large particle size can achieve higher energy density, and is safer, than polycrystalline counterparts. However, synthesizing large SCNR cathodes (>5 μm) without compromising electrochemical performance is very challenging due to the incompatibility between Ni-rich cathodes and high temperature calcination. Herein, we introduce Vegard's Slope as a guide for rationally selecting sintering aids, and we successfully synthesize size-controlled SCNR cathodes, the largest of which can be up to 10 μm. Comprehensive theoretical calculation and experimental characterization show that sintering aids continuously migrate to the particle surface, suppress sublattice oxygen release and reduce the surface energy of the typically exposed facets, which promotes grain boundary migration and elevates calcination critical temperature. The dense SCNR cathodes, fabricated by packing of different-sized SCNR cathode particles, achieve a highest electrode press density of 3.9 g cm-3 and a highest volumetric energy density of 3000 Wh L-1. The pouch cell demonstrates a high energy density of 303 Wh kg-1, 730 Wh L-1 and 76% capacity retention after 1200 cycles. SCNR cathodes with an optimized particle size distribution can meet the requirements for both electric vehicles and portable devices. Furthermore, the principle for controlling the growth of SCNR particles can be widely applied when synthesizing other materials for Li-ion, Na-ion and K-ion batteries.
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Affiliation(s)
| | | | | | - Xu-Dong Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing100190, China
| | - Dan Lei
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing100190, China
| | - Xiaorui Sun
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, CAS, Beijing100190, China
| | - Hongyi Pan
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, CAS, Beijing100190, China
| | - Junyang Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, CAS, Beijing100190, China
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21
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Wu F, Kuenzel M, Diemant T, Mullaliu A, Fang S, Kim JK, Kim HW, Kim GT, Passerini S. Enabling High-Stability of Aqueous-Processed Nickel-Rich Positive Electrodes in Lithium Metal Batteries. Small 2022; 18:e2203874. [PMID: 36116115 DOI: 10.1002/smll.202203874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Lithium batteries occupy the large-scale electric mobility market raising concerns about the environmental impact of cell production, especially regarding the use of poly(vinylidene difluoride) (teratogenic) and N-methyl-2-pyrrolidone (NMP, harmful). To avoid their use, an aqueous electrode processing route is utilized in which a water-soluble hybrid acrylic-fluoropolymer together with sodium carboxymethyl cellulose is used as binder, and a thin phosphate coating layer is in situ formed on the surface of the nickel-rich cathode during electrode processing. The resulting electrodes achieve a comparable performance to that of NMP-based electrodes in conventional organic carbonate-based electrolyte (LP30). Subsequently, an ionic liquid electrolyte (ILE) is employed to replace the organic electrolyte, building stable electrode/electrolyte interphases on the surface of the nickel-rich positive electrode (cathode) and metallic lithium negative electrode (anode). In such ILE, the aqueously processed electrodes achieve high cycling stability with a capacity retention of 91% after 1000 cycles (20 °C). In addition, a high capacity of more than 2.5 mAh cm-2 is achieved for high loading electrodes (≈15 mg cm-2 ) by using a modified ILE with 5% vinylene carbonate additive. A path to achieve environmentally friendly electrode manufacturing while maintaining their outstanding performance and structural integrity is demonstrated.
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Affiliation(s)
- Fanglin Wu
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Matthias Kuenzel
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Thomas Diemant
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Angelo Mullaliu
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Shan Fang
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Jae-Kwang Kim
- Department of Solar & Energy Engineering, Cheongju University, Cheongju, Chungbuk, 28503, Republic of Korea
| | - Hee Woong Kim
- Department of Solar & Energy Engineering, Cheongju University, Cheongju, Chungbuk, 28503, Republic of Korea
| | - Guk-Tae Kim
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstrasse 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021, Karlsruhe, Germany
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22
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Liu X, Hao J, Zhang M, Zheng B, Zhao D, Cheng Y, He Z, Su M, Xie C, Luo M, Shan P, Tao M, Liang Z, Xiang Y, Yang Y. Mitigating the Surface Reconstruction of Ni-Rich Cathode via P2-Type Mn-Rich Oxide Coating for Durable Lithium Ion Batteries. ACS Appl Mater Interfaces 2022; 14:30398-30409. [PMID: 35748137 DOI: 10.1021/acsami.2c06264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ni-rich materials have received widespread attention as one of the mainstream cathodes in high-energy-density lithium-ion batteries for electric vehicles. However, Ni-rich cathodes suffer from severe surface reconstruction in a high delithiation state, constraining their rate capabilities and life span. Herein, a novel P2-type NaxNi0.33Mn0.67O2 (NNMO) is rationally selected as the surficial modification layer for LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode, which undergoes a spontaneous Na+-Li+ exchange reaction to form an O2-type LixNi0.33Mn0.67O2 (LNMO) layer revealed by combining X-ray diffraction and solid-state nuclear magnetic resonance techniques. Owing to the specific oxygen stacking sequence, O2-type LNMO significantly prevents the initial layered structure of NCM811 from transforming to the spinel or rock-salt phases during cycling, thus effectively maintaining the integral surficial structure and the Li+ diffusion channels of NCM811. Eventually, the NNMO@NCM811 electrode yields enhanced thermal stability, outstanding rate performance, and long cycling stability with 80% capacity retention after 294 cycles at 200 mA g-1, and its life span is further extended to 531 cycles while enhancing the mechanical stability of the bulk material.
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Affiliation(s)
- Xiangsi Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jialiang Hao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Maojie Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bizhu Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Danhui Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong Cheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory for Physical Chemistry of Solid Surface, College of Materials, Xiamen University, Xiamen 361105, China
| | - Zhanning He
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mintao Su
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chenpeng Xie
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingzeng Luo
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Peizhao Shan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingming Tao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ziteng Liang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuxuan Xiang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong Yang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- School of Energy Research, Xiamen University, Xiamen 361005, China
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23
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Liu H, Xie Z, Qu W, Dy E, Niketic S, Brueckner S, Tsay K, Fuller E, Bock C, Zaker N, Botton GA. High-Voltage Induced Surface and Intragranular Structural Evolution of Ni-Rich Layered Cathode. Small 2022; 18:e2200627. [PMID: 35411712 DOI: 10.1002/smll.202200627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Layered Ni-rich lithium transition metal oxides are promising cathode materials for high-energy-density lithium-ion batteries. These cathodes, however, suffer from rapid performance decay under high-voltage operation. In this work, the electrochemical properties and structural evolution of the LiNi0.8 Mn0.1 Co0.1 O2 (NMC811) cathode upon high-voltage cycling are investigated. The results show that the NMC811 cathode not only experiences surface evolution with the formation of Li-deficient rock-salt layers, but also suffers from drastic intragranular structural changes inside bulk grains after high-voltage cycling. Direct evidence for the formation of transition-metal/Li disordering domains with uneven Li content and lattice plane distortion at the internal grains of 4.6 V-cycled NMC811 are provided with their atomic ordering and spatial distribution clearly resolved. The complex intragranular structural changes impede Li+ diffusion inside bulk material, resulting in kinetic limitation and capacity loss. The results demonstrate that the high-voltage cycling would induce severe structural degradation at the grain interior of the cathode material beyond surface evolution, which contributes significantly to the rapid performance decay of the NMC811 cathode. The findings provide new insights for developing effective countermeasures to mitigate this degradation pathway.
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Affiliation(s)
- Hanshuo Liu
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Zhong Xie
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Wei Qu
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Eben Dy
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Svetlana Niketic
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Shawn Brueckner
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Ken Tsay
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Eric Fuller
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Christina Bock
- Energy, Mining and Environment Research Centre, National Research Council Canada, 4250 Wesbrook Mall, Vancouver, BC, V6T 1W5, Canada
| | - Nafiseh Zaker
- Department of Materials Science & Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Gianluigi A Botton
- Department of Materials Science & Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
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24
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Wang L, Lei X, Liu T, Dai A, Su D, Amine K, Lu J, Wu T. Regulation of Surface Defect Chemistry toward Stable Ni-Rich Cathodes. Adv Mater 2022; 34:e2200744. [PMID: 35276756 DOI: 10.1002/adma.202200744] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Surface reconstruction of Ni-rich layered oxides (NLO) degrades the cycling stability and safety of high-energy-density lithium-ion batteries (LIBs), which challenges typical surface-modification approaches to build a robust interface with electrochemical activity. Here, a strategy of leveraging the low-strain analogues of Li- and Mn-rich layered oxides (LMR) to reconstruct a stable surface on the Ni-rich layered cathodes is proposed. The new surface structure not only consists of a gradient chemical composition but also contains a defect-rich structure regarding the formation of oxygen vacancies and cationic ordering, which can simultaneously facilitate lithium diffusion and stabilize the crystal structure during the (de)lithiation. These features in the NLO lead to a dramatic improvement in electrochemical properties, especially the cyclability under high voltage cycling, exhibiting the 30% increase in capacity retention after 200 cycles at the current density of 1 C (3.0-4.6 V). The findings offer a facile and effective way to regulate defect chemistry and surface structure in parallel on Ni-rich layered structure cathodes to achieve high-energy density LIBs.
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Affiliation(s)
- Liguang Wang
- X-ray Science Division, Advanced Photon Sources, Argonne National Laboratory, Lemont, IL, 60439, USA
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON, N9B 3P4, Canada
| | - Xincheng Lei
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences, Beijing, 100190, China
| | - Tongchao Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Alvin Dai
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences, Beijing, 100190, China
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Department of Material Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Jun Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Tianpin Wu
- X-ray Science Division, Advanced Photon Sources, Argonne National Laboratory, Lemont, IL, 60439, USA
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25
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Zhang L, Müller Gubler EA, Tai CW, Kondracki Ł, Sommer H, Novák P, El Kazzi M, Trabesinger S. Elucidating the Humidity-Induced Degradation of Ni-Rich Layered Cathodes for Li-Ion Batteries. ACS Appl Mater Interfaces 2022; 14:13240-13249. [PMID: 35271266 DOI: 10.1021/acsami.1c23128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ni-rich layered oxides, in a general term of Li(NixCoyMn1-x-y)O2 (x > 0.5), are widely recognized as promising candidates for improving the specific energy and lowering the cost for next-generation Li-ion batteries. However, the high surface reactivity of these materials results in side reactions during improper storage and notable gas release when the cell is charged beyond 4.3 V vs Li+/Li0. Therefore, in this study, we embark on a comprehensive investigation on the moisture sensitivity of LiNi0.85Co0.1Mn0.05O2 by aging it in a controlled environment at a constant room-temperature relative humidity of 63% up to 1 year. We quantitatively analyze the gassing of the aged samples by online electrochemical mass spectrometry and further depict plausible reaction pathways, accounting for the origin of the gas release. Transmission electron microscopy reveals formation of an amorphous surface impurity layer of ca. 10 nm in thickness, as a result of continuous reactions with moisture and CO2 from the air. Underneath it, there is another reconstructed layer of ca. 20 nm in thickness, showing rock salt/spinel-like features. Our results provide insight into the complex interfacial degradation phenomena and future directions for the development of high-performance Ni-rich layered oxides.
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Affiliation(s)
- Leiting Zhang
- Electrochemistry Laboratory (LEC), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
| | - Elisabeth Agnes Müller Gubler
- Laboratory of Biomolecular Research (LBR), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm SE-106 91, Sweden
| | - Łukasz Kondracki
- Electrochemistry Laboratory (LEC), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
| | | | - Petr Novák
- Electrochemistry Laboratory (LEC), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
| | - Mario El Kazzi
- Electrochemistry Laboratory (LEC), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
| | - Sigita Trabesinger
- Electrochemistry Laboratory (LEC), Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI CH-5232, Switzerland
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26
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Reissig F, Lange MA, Haneke L, Placke T, Zeier WG, Winter M, Schmuch R, Gomez‐Martin A. Synergistic Effects of Surface Coating and Bulk Doping in Ni-Rich Lithium Nickel Cobalt Manganese Oxide Cathode Materials for High-Energy Lithium Ion Batteries. ChemSusChem 2022; 15:e202102220. [PMID: 34784118 PMCID: PMC9300204 DOI: 10.1002/cssc.202102220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Ni-rich layered oxide cathodes are promising candidates to satisfy the increasing energy demand of lithium-ion batteries for automotive applications. Thermal and cycling stability issues originating from increasing Ni contents are addressed by mitigation strategies such as elemental bulk substitution ("doping") and surface coating. Although both approaches separately benefit the cycling stability, there are only few reports investigating the combination of two of such approaches. Herein, the combination of Zr as common dopant in commercial materials with effective Li2 WO4 and WO3 coatings was investigated with special focus on the impact of different material processing conditions on structural parameters and electrochemical performance in nickel-cobalt-manganese (NCM) || graphite cells. Results indicated that the Zr4+ dopant diffusing to the surface during annealing improved the electrochemical performance compared to samples without additional coatings. This work emphasizes the importance to not only investigate the effect of individual dopants or coatings but also the influences between both.
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Affiliation(s)
- Friederike Reissig
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
| | - Martin Alexander Lange
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Lukas Haneke
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Tobias Placke
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Wolfgang G. Zeier
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
- Institute of Physical ChemistryUniversity of MünsterCorrensstr. 3048149MünsterGermany
| | - Martin Winter
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Richard Schmuch
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Aurora Gomez‐Martin
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
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27
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Park CW, Lee JH, Seo JK, Ran WTA, Whang D, Hwang SM, Kim YJ. Graphene/PVDF Composites for Ni-rich Oxide Cathodes Toward High-Energy Density Li-ion Batteries. Materials (Basel) 2021; 14:2271. [PMID: 33925721 DOI: 10.3390/ma14092271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/20/2022]
Abstract
Li-ion batteries (LIBs) employ porous, composite-type electrodes, where few weight percentages of carbonaceous conducting agents and polymeric binders are required to bestow electrodes with electrical conductivity and mechanical robustness. However, the use of such inactive materials has limited enhancements of battery performance in terms of energy density and safety. In this study, we introduced graphene/polyvinylidene fluoride (Gr/PVdF) composites in Ni-rich oxide cathodes for LIBs, replacing conventional conducting agents, carbon black (CB) nanoparticles. By using Gr/PVdF suspensions, we fabricated highly dense LiNi0.85Co0.15Al0.05O2 (NCA) cathodes having a uniform distribution of conductive Gr sheets without CB nanoparticles, which was confirmed by scanning spreading resistance microscopy mode using atomic force microscopy. At a high content of 99 wt.% NCA, good cycling stability was shown with significantly improved areal capacity (Qareal) and volumetric capacity (Qvol), relative to the CB/PVdF-containing NCA electrode with a commercial-level of electrode parameters. The NCA electrodes using 1 wt.% Gr/PVdF (0.9:0.1) delivered a high Qareal of ~3.7 mAh cm−2 (~19% increment) and a high Qvol of ~774 mAh cm−3 (~18% increment) at a current rate of 0.2 C, as compared to the conventional NCA electrode. Our results suggest a viable strategy for superseding conventional conducting agents (CB) and improving the electrochemical performance of Ni-rich cathodes for advanced LIBs.
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Mukherjee P, Lu P, Faenza N, Pereira N, Amatucci G, Ceder G, Cosandey F. Atomic Structure of Surface-Densified Phases in Ni-Rich Layered Compounds. ACS Appl Mater Interfaces 2021; 13:17478-17486. [PMID: 33844491 DOI: 10.1021/acsami.1c00143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, we report the presence of surface-densified phases (β-Ni5O8, γ-Ni3O4, and δ-Ni7O8) in LiNiO2 (LNO)- and LiNi0.8Al0.2O2 (LNA)-layered compounds by combined atomic level scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS). These surface phases form upon electrochemical aging at high state of charge corresponding to a fully delithiated state. A unique feature of these phases is the periodic occupancy by Ni2+ in the Li layer. This periodic Ni occupancy gives rise to extra diffraction reflections, which are qualitatively similar to those of the LiNi2O4 spinel structure, but these surface phases have a lower Ni valence state and cation content than spinel. These experimental results confirm the presence of thermodynamically stable surface phases and provide new insights into the phenomena of surface phase formation in Ni-rich layered structures.
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Affiliation(s)
- Pinaki Mukherjee
- Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Ping Lu
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Nicholas Faenza
- Energy Storage Research Group, Rutgers University, Newark, New Jersey 08902, United States
| | - Nathalie Pereira
- Energy Storage Research Group, Rutgers University, Newark, New Jersey 08902, United States
| | - Glenn Amatucci
- Energy Storage Research Group, Rutgers University, Newark, New Jersey 08902, United States
| | - Gerbrand Ceder
- Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Frederic Cosandey
- Materials Science and Engineering, Rutgers University, Newark, New Jersey 08854, United States
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Gao A, Li X, Meng F, Guo S, Lu X, Su D, Wang X, Zhang Q, Gu L. In Operando Visualization of Cation Disorder Unravels Voltage Decay in Ni-Rich Cathodes. Small Methods 2021; 5:e2000730. [PMID: 34927884 DOI: 10.1002/smtd.202000730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/04/2020] [Indexed: 06/14/2023]
Abstract
Despite the high energy density of Ni-rich layered-oxide electrodes, their real-world implementation in batteries is hindered by the substantial voltage decay on cycling, which mainly originates from bulk and surface structural degradation. Here, in operando observation of cation disorder, a major origin of structural degradation, reveals the voltage decay mechanism in Ni-rich cathode. Viewed along [1 1-0] and [110] orientations by scanning transmission electron microscopy, it is demonstrated that transition metal (TM) migration gives rise to the drastic fluctuation of interlamellar spacing and NiO bond length, but almost exerts no influence on atom site in ab plane. Density functional theory calculations reveal that the fluctuation of the NiO bond length triggers voltage decay via lifting the energy level of the antibonding (3dz2 -2p)* orbits. Broadening bands by a shorter NiO bond increase the voltage slope of battery, which will reduce the accessible Li capacity within the stable voltage range of the electrolyte. Furthermore, a collaborative path of TM migration triggered by oxygen vacancy is verified to account for the TM migration. The finding provides insights into new chemistry to be explored for developing high-capacity layered electrodes that evade voltage decay.
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Affiliation(s)
- Ang Gao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinyan Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fanqi Meng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengnan Guo
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xia Lu
- School of Materials, Sun Yat-sen University, Guangzhou, 510275, China
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xuefeng Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Yangtze River Delta Physics Research Center Co. Ltd., Liyang, 213300, China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, 523808, China
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Cheng X, Liu M, Yin J, Ma C, Dai Y, Wang D, Mi S, Qiang W, Huang B, Chen Y. Regulating Surface and Grain-Boundary Structures of Ni-Rich Layered Cathodes for Ultrahigh Cycle Stability. Small 2020; 16:e1906433. [PMID: 32141179 DOI: 10.1002/smll.201906433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/10/2020] [Indexed: 06/10/2023]
Abstract
The wide applications of Ni-rich LiNi1- x-y Cox Mny O2 cathodes are severely limited by capacity fading and voltage fading during the cycling process resulting from the pulverization of particles, interfacial side reactions, and phase transformation. The canonical surface modification approach can improve the stability to a certain extent; however, it fails to resolve the key bottlenecks. The preparation of Li(Ni0.4 Co0.2 Mn0.4 )1- x Tix O2 on the surface of LiNi0.8 Co0.1 Mn0.1 O2 particles with a coprecipitation method is reported. After sintering, Ti diffuses into the interior and mainly distributes along surface and grain boundaries. A strong surface and grain boundary strengthening are simultaneously achieved. The pristine particles are fully pulverized into first particles due to mechanical instability and high strains, which results in serious capacity fading. In contrast, the strong surface and the grain boundary strengthening can maintain the structural integrity, and therefore significantly improve the cycle stability. A general and simple strategy for the design of high-performance Ni-rich LiNi1- x - y Cox Mny O2 cathode is provided and is applicable to surface modification and grain-boundary regulation of other advanced cathodes for batteries.
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Affiliation(s)
- Xu Cheng
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Meng Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Jingyun Yin
- Beijing Pride Power System Technology Co., LTD, Beijing, 102606, China
| | - Chuansheng Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yanzhu Dai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Deyu Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Shaobo Mi
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wenjiang Qiang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Bingxin Huang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yanan Chen
- Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
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Yang J, Tang M, Liu H, Chen X, Xu Z, Huang J, Su Q, Xia Y. O3-Type Layered Ni-Rich Oxide: A High-Capacity and Superior-Rate Cathode for Sodium-Ion Batteries. Small 2019; 15:e1905311. [PMID: 31663266 DOI: 10.1002/smll.201905311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Inspired by its high-active and open layered framework for fast Li+ extraction/insertion reactions, layered Ni-rich oxide is proposed as an outstanding Na-intercalated cathode for high-performance sodium-ion batteries. An O3-type Na0.75 Ni0.82 Co0.12 Mn0.06 O2 is achieved through a facile electrochemical ion-exchange strategy in which Li+ ions are first extracted from the LiNi0.82 Co0.12 Mn0.06 O2 cathode and Na+ ions are then inserted into a layered oxide framework. Furthermore, the reaction mechanism of layered Ni-rich oxide during Na+ extraction/insertion is investigated in detail by combining ex situ X-ray diffraction, X-ray photoelectron spectroscopy, and electron energy loss spectroscopy. As an excellent cathode for Na-ion batteries, O3-type Na0.75 Ni0.82 Co0.12 Mn0.06 O2 delivers a high reversible capacity of 171 mAh g-1 and a remarkably stable discharge voltage of 2.8 V during long-term cycling. In addition, the fast Na+ transport in the cathode enables high rate capability with 89 mAh g-1 at 9 C. The as-prepared Ni-rich oxide cathode is expected to significantly break through the limited performance of current sodium-ion batteries.
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Affiliation(s)
- Jun Yang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Manjing Tang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Hao Liu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Xueying Chen
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Zhanwei Xu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Jianfeng Huang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, P. R. China
| | - Qingmei Su
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Yongyao Xia
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai, 200433, P. R. China
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