1
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Zhao G, Ma H, Zhang C, Yang Y, Yu S, Zhu H, Sun Y, Guo H. Constructing Donor-Acceptor-Linked COFs Electrolytes to Regulate Electron Density and Accelerate the Li + Migration in Quasi-Solid-State Battery. NANO-MICRO LETTERS 2024; 17:21. [PMID: 39325321 PMCID: PMC11427627 DOI: 10.1007/s40820-024-01509-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Accepted: 08/11/2024] [Indexed: 09/27/2024]
Abstract
Regulation the electronic density of solid-state electrolyte by donor-acceptor (D-A) system can achieve highly-selective Li+ transportation and conduction in solid-state Li metal batteries. This study reports a high-performance solid-state electrolyte thorough D-A-linked covalent organic frameworks (COFs) based on intramolecular charge transfer interactions. Unlike other reported COF-based solid-state electrolyte, the developed concept with D-A-linked COFs not only achieves electronic modulation to promote highly-selective Li+ migration and inhibit Li dendrite, but also offers a crucial opportunity to understand the role of electronic density in solid-state Li metal batteries. The introduced strong electronegativity F-based ligand in COF electrolyte results in highly-selective Li+ (transference number 0.83), high ionic conductivity (6.7 × 10-4 S cm-1), excellent cyclic ability (1000 h) in Li metal symmetric cell and high-capacity retention in Li/LiFePO4 cell (90.8% for 300 cycles at 5C) than substituted C- and N-based ligands. This is ascribed to outstanding D-A interaction between donor porphyrin and acceptor F atoms, which effectively expedites electron transferring from porphyrin to F-based ligand and enhances Li+ kinetics. Consequently, we anticipate that this work creates insight into the strategy for accelerating Li+ conduction in high-performance solid-state Li metal batteries through D-A system.
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Affiliation(s)
- Genfu Zhao
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Hang Ma
- Yunnan Yuntianhua Co., Ltd, R & D Center, Kunming, 650228, People's Republic of China
| | - Conghui Zhang
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yongxin Yang
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Shuyuan Yu
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Haiye Zhu
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yongjiang Sun
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China
| | - Hong Guo
- School of Materials and Energy, International Joint Research Center for Advanced Energy Materials of Yunnan Province, Yunnan University, Kunming, 650091, People's Republic of China.
- Southwest United Graduate School, Kunming, 650091, People's Republic of China.
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2
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Deng Z, Chen S, Yang K, Song Y, Xue S, Yao X, Yang L, Pan F. Tailoring Interfacial Structures to Regulate Carrier Transport in Solid-State Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2407923. [PMID: 39081109 DOI: 10.1002/adma.202407923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/17/2024] [Indexed: 10/04/2024]
Abstract
Solid-state lithium-ion batteries (SSLIBs) have been considered as the priority candidate for next-generation energy storage system, due to their advantages in safety and energy density compare with conventional liquid electrolyte systems. However, the introduction of numerous solid-solid interfaces results in a series of issues, hindering the further development of SSLIBs. Therefore, a thorough understanding on the interfacial issues is essential to promote the practical applications for SSLIBs. In this review, the interface issues are discussed from the perspective of transportation mechanism of electrons and lithium ions, including internal interfaces within cathode/anode composites and solid electrolytes (SEs), as well as the apparent electrode/SEs interfaces. The corresponding interface modification strategies, such as passivation layer design, conductive binders, and thermal sintering methods, are comprehensively summarized. Through establishing the correlation between carrier transport network and corresponding battery electrochemical performance, the design principles for achieving a selective carrier transport network are systematically elucidated. Additionally, the future challenges are speculated and research directions in tailoring interfacial structure for SSLIBs. By providing the insightful review and outlook on interfacial charge transfer, the industrialization of SSLIBs are aimed to promoted.
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Affiliation(s)
- Zhikang Deng
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
| | - Shiming Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
| | - Kai Yang
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Yongli Song
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Shida Xue
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
| | - Xiangming Yao
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
| | - Luyi Yang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
| | - Feng Pan
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055, China
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3
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Pan L, Feng S, Sun H, Liu XX, Yuan P, Cao M, Gao M, Wang Y, Sun Z. Ultrathin, Mechanically Durable, and Scalable Polymer-in-Salt Solid Electrolyte for High-Rate Lithium Metal Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400272. [PMID: 38623970 DOI: 10.1002/smll.202400272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/21/2024] [Indexed: 04/17/2024]
Abstract
Polymer-in-salt solid-state electrolytes (PIS SSEs) are emerging for high room-temperature ionic conductivity and facile handling, but suffer from poor mechanical durability and large thickness. Here, Al2O3-coated PE (PE/AO) separators are proposed as robust and large-scale substrates to trim the thickness of PIS SSEs without compromising mechanical durability. Various characterizations unravel that introducing Al2O3 coating on PE separators efficiently improves the wettability, thermal stability, and Li-dendrite resistance of PIS SSEs. The resulting PE/AO@PIS demonstrates ultra-small thickness (25 µm), exceptional mechanical durability (55.1 MPa), high decomposition temperature (330 °C), and favorable ionic conductivity (0.12 mS cm-1 at 25 °C). Consequently, the symmetrical Li cells remain stable at 0.1 mA cm-2 for 3000 h, without Li dendrite formation. Besides, the LiFePO4|Li full cells showcase excellent rate capability (131.0 mAh g-1 at 10C) and cyclability (93.6% capacity retention at 2C after 400 cycles), and high-mass-loading performance (7.5 mg cm-2). Moreover, the PE/AO@PIS can also pair with nickel-rich layered oxides (NCM811 and NCM9055), showing a remarkable specific capacity of 165.3 and 175.4 mAh g-1 at 0.2C after 100 cycles, respectively. This work presents an effective large-scale preparation approach for mechanically durable and ultrathin PIS SSEs, driving their practical applications for next-generation solid-state Li-metal batteries.
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Affiliation(s)
- Long Pan
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Shengfa Feng
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Hui Sun
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Xiong Xiong Liu
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Pengcheng Yuan
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Mufan Cao
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Min Gao
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Yaping Wang
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - ZhengMing Sun
- Key Laboratory of Advanced Metallic Materials of Jiangsu Province, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, P. R. China
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4
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Huang J, Davenport AM, Heffernan K, Debela TT, Marshall CR, McKenzie J, Shen M, Hou S, Mitchell JB, Ojha K, Hendon CH, Brozek CK. Electrochemical Anion Sensing Using Conductive Metal-Organic Framework Nanocrystals with Confined Pores. J Am Chem Soc 2024. [PMID: 39011684 DOI: 10.1021/jacs.4c06669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Anion sensing technology is motivated by the widespread and critical roles played by anions in biological systems and the environment. Electrochemical approaches comprise a major portion of this field but so far have relied on redox-active molecules appended to electrodes that often lack the ability to produce mixtures of distinct signatures from mixtures of different anions. Here, nanocrystalline films of the conductive metal-organic framework (MOF) Cr(1,2,3-triazolate)2 are used to differentiate anions based on size, which consequently affect the reversible oxidation of the MOF. During framework oxidation, the intercalation of larger charge-balancing anions (e.g., ClO4-, PF6-, and OTf-) gives rise to redox potentials shifted anodically by hundreds of mV due to the additional work of solvent reorganization and anion desolvation. Smaller anions (e.g., BF4-) may enter partially solvated, while larger ansions (e.g., OTf-) intercalate with complete desolvation. As a proof-of-concept, we leverage this "nanoconfinement" approach to report an electrochemical ClO4- sensor in aqueous media that is recyclable, reusable, and sensitive to sub-100-nM concentrations. Taken together, these results exemplify an unusual combination of distinct external versus internal surface chemistry in MOF nanocrystals and the interfacial chemistry they enable as a novel supramolecular approach for redox voltammetric anion sensing.
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Affiliation(s)
- Jiawei Huang
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Audrey M Davenport
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Kelsie Heffernan
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Tekalign T Debela
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Checkers R Marshall
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Jacob McKenzie
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Meikun Shen
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Shujin Hou
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - James B Mitchell
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Kasinath Ojha
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Christopher H Hendon
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Carl K Brozek
- Department of Chemistry and Biochemistry, Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
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5
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Bilo JV, Chang CK, Chuang YC, Fang MH. Coprecipitation Strategy for Halide-Based Solid-State Electrolytes and Atmospheric-Dependent In Situ Analysis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27394-27399. [PMID: 38752670 PMCID: PMC11145587 DOI: 10.1021/acsami.4c03694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/29/2024] [Accepted: 05/06/2024] [Indexed: 05/30/2024]
Abstract
In the continuous pursuit of an energy-efficient alternative to the energy-intensive mechanochemical process, we developed a coprecipitation strategy for synthesizing halide-based solid-state electrolytes that warrant both structural control and commercial scalability. In this study, we propose a new coprecipitation approach to synthesized Li3InCl6, exhibiting both structural and electrochemical performance stability, with a high ionic conductivity of 1.42 × 10-3 S cm-1, comparable to that of traditionally prepared counterparts. Through the in situ synchrotron X-ray diffraction technique, we unveil the stability mechanisms and rapid chemical reactions of Li3InCl6 under dry Ar, dry O2, and high-humidity atmosphere, which were not previously reported. Furthermore, the fast reversibility capability of moisture-exposed Li3InCl6 was tracked under vacuum, revealing the optimal recovery conditions at low temperatures (150-200 °C). This work addresses the critical challenges in structural engineering and sustainable mass production and provides insights into chemical reactions under real-world conditions.
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Affiliation(s)
- Josanelle
Angela V. Bilo
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Department
of Engineering and System Science, National
Tsing Hua University, Hsinchu 30013, Taiwan
- Nano
Science and Technology Program, Taiwan International Graduate Program, Academia Sinica and National Tsinghua University, Hsinchu 30013, Taiwan
- Department
of Science and Technology, Philippine Textile
Research Institute, Taguig City 1631, Philippines
| | - Chung-Kai Chang
- National
Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
| | - Yu-Chun Chuang
- National
Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
| | - Mu-Huai Fang
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
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6
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Luo JD, Zhang Y, Cheng X, Li F, Tan HY, Zhou MY, Wang ZW, Hao XD, Yin YC, Jiang B, Yao HB. Halide Superionic Conductors with Non-Close-Packed Anion Frameworks. Angew Chem Int Ed Engl 2024; 63:e202400424. [PMID: 38433094 DOI: 10.1002/anie.202400424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/05/2024]
Abstract
Halide superionic conductors (SICs) are drawing significant research attention for their potential applications in all-solid-state batteries. A key challenge in developing such SICs is to explore and design halide structural frameworks that enable rapid ion movement. In this work, we show that the close-packed anion frameworks shared by traditional halide ionic conductors face intrinsic limitations in fast ion conduction, regardless of structural regulation. Beyond the close-packed anion frameworks, we identify that the non-close-packed anion frameworks have great potential to achieve superionic conductivity. Notably, we unravel that the non-close-packed UCl3-type framework exhibit superionic conductivity for a diverse range of carrier ions, including Li+, Na+, K+, and Ag+, which are validated through both ab initio molecular dynamics simulations and experimental measurements. We elucidate that the remarkable ionic conductivity observed in the UCl3-type framework structure stems from its significantly more distorted site and larger diffusion channel than its close-packed counterparts. By employing the non-close-packed anion framework as the key feature for high-throughput computational screening, we also identify LiGaCl3 as a promising candidate for halide SICs. These discoveries provide crucial insights for the exploration and design of novel halide SICs.
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Affiliation(s)
- Jin-Da Luo
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yixi Zhang
- Key Laboratory of Precision and Intelligent Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiaobin Cheng
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Feng Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hao-Yuan Tan
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Mei-Yu Zhou
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zi-Wei Wang
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xu-Dong Hao
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yi-Chen Yin
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Bin Jiang
- Key Laboratory of Precision and Intelligent Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hong-Bin Yao
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
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7
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Zhang HS, Lei XC, Su D, Guo SJ, Zhu JC, Wang XF, Zhang X, Wu TT, Lu SQ, Li YT, Cao AM. Surface Lattice Modulation Enables Stable Cycling of High-Loading All-solid-state Batteries at High Voltages. Angew Chem Int Ed Engl 2024; 63:e202400562. [PMID: 38382041 DOI: 10.1002/anie.202400562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/23/2024]
Abstract
Halide solid electrolytes, known for their high ionic conductivity at room temperature and good oxidative stability, face notable challenges in all-solid-state Li-ion batteries (ASSBs), especially with unstable cathode/solid electrolyte (SE) interface and increasing interfacial resistance during cycling. In this work, we have developed an Al3+-doped, cation-disordered epitaxial nanolayer on the LiCoO2 surface by reacting it with an artificially constructed AlPO4 nanoshell; this lithium-deficient layer featuring a rock-salt-like phase effectively suppresses oxidative decomposition of Li3InCl6 electrolyte and stabilizes the cathode/SE interface at 4.5 V. The ASSBs with the halide electrolyte Li3InCl6 and a high-loading LiCoO2 cathode demonstrated high discharge capacity and long cycling life from 3 to 4.5 V. Our findings emphasize the importance of specialized cathode surface modification in preventing SE degradation and achieving stable cycling of halide-based ASSBs at high voltages.
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Affiliation(s)
- Hong-Shen Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, 100049, Beijing, P. R. China
| | - Xin-Cheng Lei
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, No. 8 Zhongguancun South Third Street, 100190, Beijing, P. R. China
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, No. 8 Zhongguancun South Third Street, 100190, Beijing, P. R. China
| | - Si-Jie Guo
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
| | - Jia-Cheng Zhu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, No. 8 Zhongguancun South Third Street, 100190, Beijing, P. R. China
| | - Xue-Feng Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, No. 8 Zhongguancun South Third Street, 100190, Beijing, P. R. China
| | - Xing Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
| | - Ting-Ting Wu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
| | - Si-Qi Lu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, 100049, Beijing, P. R. China
| | - Yu-Tao Li
- Beijing Frontier Research Center on Clean Energy, Huairou Division, Institute of Physics, Chinese Academy of Sciences, Yongle North Second Street, Yanqi Economic Development Zone, Huairou District, 101400, Beijing, P. R. China
| | - An-Min Cao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnol-ogy, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), No.2 Zhongguancun North First Street, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, 100049, Beijing, P. R. China
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8
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Wang X, Yang Z, Li N, Wu K, Gao K, Zhao E, Han S, Guo W. Influence Mechanism of Interfacial Oxidation of Li 3YCl 6 Solid Electrolyte on Reduction Potential. Chemistry 2024; 30:e202303884. [PMID: 38319044 DOI: 10.1002/chem.202303884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
Halide-based solid electrolytes are promising candidates for all solid-state lithium-ion batteries (ASSLBs) due to their high ionic conductivity, wide electrochemical window, and excellent chemical stability with cathode materials. However, when tested in practice, their intrinsic electrochemical stability windows do not well match the conditions for stable operation of ASSBs. Existing literature reports halide-based ASSBs that still operate well outside the electrochemical stability window, while ASSBs that do not operate within the window are not well studied or the studies are based on the cathode material interface. In this study, we aim to elucidate the mechanism behind all-solid-state battery failure by investigating how the reduction potential of Li3YCl6 solid-state electrolyte itself changes under overcharging conditions. Our findings demonstrate that in Li-In|Li3YCl6|Li3YCl6-C half-cells during the first state of charge, Cl ions participate in charge compensation, resulting in a depletion of ligands. This phenomenon significantly affects the reduction potential of Y3+, causing it to be reduced to Y2Cl3 and ultimately to Y0 at conditions far exceeding its actual reduction potential. Furthermore, we analyze the interfacial impedance induced by this process and propose a novel perspective on battery failure.
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Affiliation(s)
- Xin Wang
- Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-Scale Scientific Facilities, School of Physical Sciences, Great Bay University, Dongguan, 523000, Guangdong, China
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
| | - Zhiqiang Yang
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
- Academy for Advanced Interdisciplinary Studies & Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Na Li
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
| | - Kang Wu
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
| | - Kesheng Gao
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
| | - Enyue Zhao
- Songshan Lake Materials Laboratory, Dongguan, 523808, Guangdong, China
| | - Songbai Han
- Academy for Advanced Interdisciplinary Studies & Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Wenhan Guo
- Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-Scale Scientific Facilities, School of Physical Sciences, Great Bay University, Dongguan, 523000, Guangdong, China
- Great Bay Institute for Advanced Study, Dongguan, 523000, China
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