1
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Xiang J, Lu YC. Ether-Based High-Voltage Lithium Metal Batteries: The Road to Commercialization. ACS NANO 2024; 18:10726-10737. [PMID: 38602344 PMCID: PMC11044695 DOI: 10.1021/acsnano.4c00110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/21/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
Ether-based high-voltage lithium metal batteries (HV-LMBs) are drawing growing interest due to their high compatibility with the Li metal anode. However, the commercialization of ether-based HV-LMBs still faces many challenges, including short cycle life, limited safety, and complex failure mechanisms. In this Review, we discuss recent progress achieved in ether-based electrolytes for HV-LMBs and propose a systematic design principle for the electrolyte based on three important parameters: electrochemical performance, safety, and industrial scalability. Finally, we summarize the challenges for the commercial application of ether-based HV-LMBs and suggest a roadmap for future development.
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Affiliation(s)
- Jingwei Xiang
- Electrochemical Energy and Interfaces
Laboratory, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, People’s
Republic of China
| | - Yi-Chun Lu
- Electrochemical Energy and Interfaces
Laboratory, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, People’s
Republic of China
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2
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A Review of Solid Electrolyte Interphase (SEI) and Dendrite Formation in Lithium Batteries. ELECTROCHEM ENERGY R 2023. [DOI: 10.1007/s41918-022-00147-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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3
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Chang B, Yun DH, Hwang I, Seo JK, Kang J, Noh G, Choi S, Choi JW. Carrageenan as a Sacrificial Binder for 5 V LiNi 0.5 Mn 1.5 O 4 Cathodes in Lithium-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303787. [PMID: 37466919 DOI: 10.1002/adma.202303787] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
5 V-class LiNi0.5 Mn1.5 O4 (LNMO) with its spinel symmetry is a promising cathode material for lithium-ion batteries. However, the high-voltage operation of LNMO renders it vulnerable to interfacial degradation involving electrolyte decomposition, which hinders long-term and high-rate cycling. Herein, this longstanding challenge presented by LNMO is overcome by incorporating a sacrificial binder, namely, λ-carrageenan (CRN), a sulfated polysaccharide. This binder not only uniformly covers the LNMO surface via hydrogen bonding and ion-dipole interaction but also offers an ionically conductive cathode-electrolyte interphase layer containing LiSOx F, a product of the electrochemical decomposition of the sulfate group. Taking advantage of these two auspicious properties, the CRN-based electrode exhibits cycling and rate performance far superior to that of its counterparts based on the conventional poly(vinylidene difluoride) and sodium alginate binders. This study introduces a new concept, namely "sacrificial" binder, for battery electrodes known to deliver superior electrochemical performance but be adversely affected by interfacial instability.
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Affiliation(s)
- Barsa Chang
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, 1-Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Dae Hui Yun
- Gwangju Clean Energy Research Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju, 61003, Republic of Korea
| | - Insu Hwang
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, 1-Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Joon Kyo Seo
- Gwangju Clean Energy Research Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju, 61003, Republic of Korea
| | - Joonhee Kang
- Computational Science & Engineering Laboratory, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Gyeongho Noh
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, 1-Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sunghun Choi
- Gwangju Clean Energy Research Center, Korea Institute of Energy Research (KIER), 270-25 Samso-ro, Buk-gu, Gwangju, 61003, Republic of Korea
| | - Jang Wook Choi
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, 1-Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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4
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Wu LQ, Li Z, Lu Y, Hou JZ, Han HQ, Zhao Q, Chen J. Hexacyclic Chelated Lithium Stable Solvates for Highly Reversible Cycling of High-Voltage Lithium Metal Battery. CHEMSUSCHEM 2023; 16:e202300590. [PMID: 37302979 DOI: 10.1002/cssc.202300590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 06/13/2023]
Abstract
Ether-based electrolytes that are endowed with decent compatibility towards lithium anode have been regarded as promising candidates for constructing energy-dense lithium metal batteries (LMBs), but their applications are hindered by low oxidation stability in conventional salt concentration. Here, we reported that regulating the chelating power and coordination structure can remarkably increase the high-voltage stability of ether-based electrolytes and lifespan of LMBs. Two ether molecules of 1,3-dimethoxypropane (DMP) and 1,3-diethoxypropane (DEP) are designed and synthesized as solvents of electrolytes to replace the traditional ether solvent (1,2-dimethoxyethane, DME). Both computational and spectra reveal that the transition from five- to six-membered chelate solvation structure by adding one methylene on DME results in the formation of weak Li solvates, which increase the reversibility and high-voltage stability in LMBs. Even under lean electrolyte (5 mL Ah-1 ) and low anode to cathode ratio (2.6), the fabricated high-voltage Li||LiNi0.8 Co0.1 Mn0.1 O2 LMBs using electrolyte of 2.30 M Lithiumbisfluorosulfonimide (LiFSI)/DMP still show capacity retention over 90 % after 184 cycles. This work highlights the importance of designing the coordination structures in non-fluorine ether electrolytes for rechargeable batteries.
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Affiliation(s)
- Lan-Qing Wu
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Zhe Li
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Yong Lu
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Jin-Ze Hou
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Hao-Qin Han
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Qing Zhao
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P.R. China
| | - Jun Chen
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P.R. China
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5
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Yu K, Cai G, Li M, Wu J, Gupta V, Lee DJ, Holoubek J, Chen Z. Effect of Electrolyte Chemistry and Sulfur Content in Li||Sulfurized Polyacrylonitrile (SPAN) Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43724-43731. [PMID: 37695100 DOI: 10.1021/acsami.3c08338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Sulfurized polyacrylonitrile (SPAN) is considered as a high-value cathode material, which leverages the high energy of S redox while mitigating the negative externalities that limit elemental S cycling. As such, the sulfur content in Li-SPAN batteries plays a critical role. In this work, we demonstrate that high-S loading SPAN cathodes, where the PAN backbone approaches the saturation point without signs of elemental S, are highly dependent on the electrolyte chemistry for long-term reversibility. Specifically, we find that a localized-high-concentration electrolyte (LHCE) further enhances the reversible capacity and cycling stability of SPAN cathode with optimized S content relative to a carbonate control, largely due to the formation of a compatible interphase. With this LHCE as the electrolyte and 43% sulfur ratio of SPAN as the cathode, a full cell applying N/P ratio = 1.82, a cathode loading of 6 mAh cm-2 (9.2 mg cm-2), and an electrolyte loading of 7 μL mg-1 SPAN can be cycled for 100 cycles with 433 mAh g-1 retained capacity and retains much of this reversibility even at 60 °C. This work reveals the molecular origin of optimized sulfur ratio in SPAN cathodes while providing guidance in electrolyte design for Li||SPAN cells with high capacity and cyclability.
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Affiliation(s)
- Kunpeng Yu
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Guorui Cai
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Mingqian Li
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Junlin Wu
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Varun Gupta
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Dong Ju Lee
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - John Holoubek
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Zheng Chen
- Department of Nano and Chemical Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Program of Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
- Sustainable Power and Energy Center, University of California, San Diego, La Jolla, California 92093, United States
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6
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Guo F, Chen X, Hou Y, Wei W, Wang Z, Yu H, Xu J. Improved Cycling of Li||NMC811 Batteries under Practical Conditions by a Localized High-Concentration Electrolyte. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207290. [PMID: 36670341 DOI: 10.1002/smll.202207290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Li||NMC811 battery, with lithium-metal (high specific capacity and low redox potential) as anode and LiNi0.8 Co0.1 Mn0.1 O2 (NMC811) as cathode, has been widely accepted to be a good candidate as one of the high-energy-density batteries. However, its cyclability needs improvement to fulfill the requirement for its future commercial use, especially under practical conditions. Electrolyte plays a key role in improving the cycling performance of Li||NMC811 batteries, where a high voltage/electrochemical window and good stability with the electrodes of the electrolyte are required. Herein, a localized high-concentration electrolyte with an additive of lithium difluoro(oxalate)borate (LiDFOB) is reported that improves the cycling performance of Li||NMC811 cells under crucial conditions with Li foil thickness of 50 µm, cathode areal loading of 4 mAh cm-2 , the areal capacity ratio between the negative and positive electrodes (N/P ratio) of 2.6 and the electrolyte/cell capacity ratio (E/C ratio) of 3.0 g (Ah)-1 . These cells can maintain 80% of the capacity after 195 cycles.
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Affiliation(s)
- Feng Guo
- Zhejiang CHINT Electrics Co., Ltd. , Shanghai, 201600, P. R. China
| | - Xi Chen
- Department of Physics, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, P. R. China
| | - Yuhan Hou
- Department of Applied Mathematics, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, P. R. China
- Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 7ZL, UK
| | - Wenshuo Wei
- Zhejiang CHINT Electrics Co., Ltd. , Shanghai, 201600, P. R. China
| | - Zhicheng Wang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hao Yu
- Department of Physics, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, P. R. China
| | - Jingjing Xu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, P. R. China
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7
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Piao Z, Gao R, Liu Y, Zhou G, Cheng HM. A Review on Regulating Li + Solvation Structures in Carbonate Electrolytes for Lithium Metal Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206009. [PMID: 36043940 DOI: 10.1002/adma.202206009] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Lithium metal batteries (LMBs) are considered promising candidates for next-generation battery systems due to their high energy density. However, commercialized carbonate electrolytes cannot be used in LMBs due to their poor compatibility with lithium metal anodes. While increasing cut-off voltage is an effective way to boost the energy density of LMBs, conventional ethylene carbonate-based electrolytes undergo a number of side reactions at high voltages. It is therefore critical to upgrade conventional carbonate electrolytes, the performance of which is highly influenced by the solvation structure of lithium ions (Li+ ). This review provides a comprehensive overview of the strategies to regulate the solvation structure of Li+ in carbonate electrolytes for LMBs by better understanding the science behind the Li+ solvation structure and Li+ behavior. Different strategies are systematically compared to help select better electrolytes for specific applications. The remaining scientific and technical problems are pointed out, and directions for future research on carbonate electrolytes for LMBs are proposed.
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Affiliation(s)
- Zhihong Piao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Runhua Gao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Yingqi Liu
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Guangmin Zhou
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Hui-Ming Cheng
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
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8
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Guo JX, Tang WB, Xiong X, Liu H, Wang T, Wu Y, Cheng XB. Localized high-concentration electrolytes for lithium metal batteries: progress and prospect. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2286-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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9
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Yuan S, Ding K, Zeng X, Bin D, Zhang Y, Dong P, Wang Y. Advanced Nonflammable Organic Electrolyte Promises Safer Li-Metal Batteries: From Solvation Structure Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206228. [PMID: 36004772 DOI: 10.1002/adma.202206228] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Batteries with a Li-metal anode have recently attracted extensive attention from the battery communities owing to their high energy density. However, severe dendrite growth hinders their practical applications. More seriously, when Li dendrites pierce the separators and trigger short circuit in a highly flammable organic electrolyte, the results would be catastrophic. Although the issues of growth of Li dendrites have been almost addressed by various methods, the highly flammable nature of conventional organic liquid electrolytes is still a lingering fear facing high-energy-density Li-metal batteries given the possibility of thermal runaway of the high-voltage cathode. Recently, various kinds of nonflammable liquid- or solid-state electrolytes have shown great potential toward safer Li-metal batteries with minimal detrimental effect on the battery performance or even enhanced electrochemical performance. In this review, recent advances in developing nonflammable electrolyte for high-energy-density Li-metal batteries including high-concentration electrolyte, localized high-concentration electrolyte, fluorinated electrolyte, ionic liquid electrolyte, and polymer electrolyte are summarized. Then, the solvation structure of different kinds of nonflammable liquid and polymer electrolytes are analyzed to provide insight into the mechanism for dendrite suppression and fire extinguishing. Finally, guidelines for future design of nonflammable electrolyte for safer Li-metal batteries are provided.
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Affiliation(s)
- Shouyi Yuan
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming, Kunming University of Science and Technology, Kunming, 650093, P. R. China
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Kai Ding
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Xiaoyuan Zeng
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Duan Bin
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
- Department of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yingjie Zhang
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Peng Dong
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Yonggang Wang
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
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10
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Chen T, You J, Li R, Li H, Wang Y, Wu C, Sun Y, Yang L, Ye Z, Zhong B, Wu Z, Guo X. Ultra-Low Concentration Electrolyte Enabling LiF-Rich SEI and Dense Plating/Stripping Processes for Lithium Metal Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203216. [PMID: 35978270 PMCID: PMC9534938 DOI: 10.1002/advs.202203216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/07/2022] [Indexed: 06/12/2023]
Abstract
The interface structure of the electrode is closely related to the electrochemical performance of lithium-metal batteries (LMBs). In particular, a high-quality solid electrode interface (SEI) and uniform, dense lithium plating/stripping processes play a key role in achieving stable LMBs. Herein, a LiF-rich SEI and a uniform and dense plating/stripping process of the electrolyte by reducing the electrolyte concentration without changing the solvation structure, thereby avoiding the high cost and poor wetting properties of high-concentration electrolytes are achieved. The ultra-low concentration electrolyte with an unchanged Li+ solvation structure can restrain the inhomogeneous diffusion flux of Li+ , thereby achieving more uniform lithium deposition and stripping processes while maintaining a LiF-rich SEI. The LiIICu battery with this electrolyte exhibits enhanced cycling stability for 1000 cycles with a coulombic efficiency of 99% at 1 mA cm-2 and 1 mAh cm-2 . For the LiIILiFePO4 pouch cell, the capacity retention values at 0.5 and 1 C are 98.6% and 91.4%, respectively. This study offers a new perspective for the commercial application of low-cost electrolytes with ultra-low concentrations and high concentration effects.
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Affiliation(s)
- Ting Chen
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Jinhai You
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenLeuven3001Belgium
| | - Rong Li
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Haoyu Li
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Yuan Wang
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Chen Wu
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Yan Sun
- School of Mechanical EngineeringChengdu UniversityChengdu610106P. R. China
| | - Liu Yang
- School of Materials Science and EngineeringHenan Normal UniversityXinxiangHenan453007P. R. China
| | - Zhengcheng Ye
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Benhe Zhong
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Zhenguo Wu
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
| | - Xiaodong Guo
- Department of Chemical EngineeringSichuan UniversityChengdu610065P. R. China
- Institute for Advanced StudyChengdu UniversityChengdu610106P. R. China
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11
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Wu Y, Wang A, Hu Q, Liang H, Xu H, Wang L, He X. Significance of Antisolvents on Solvation Structures Enhancing Interfacial Chemistry in Localized High-Concentration Electrolytes. ACS CENTRAL SCIENCE 2022; 8:1290-1298. [PMID: 36188346 PMCID: PMC9523775 DOI: 10.1021/acscentsci.2c00791] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Indexed: 06/10/2023]
Abstract
Localized high-concentration electrolytes (LHCEs) provide a new way to expand multifunctional electrolytes because of their unique physicochemical properties. LHCEs are generated when high-concentration electrolytes (HCEs) are diluted by antisolvents, while the effect of antisolvents on the lithium-ion solvation structure is negligible. Herein, using one-dimensional infrared spectroscopy and theoretical calculations, we explore the significance of antisolvents in the model electrolyte lithium bis(fluorosulfonyl)imide/dimethyl carbonate (LiFSI/DMC) with hydrofluoroether. We clarify that the role of antisolvent is more than dilution; it is also the formation of a low-dielectric environment and intensification of the inductive effect on the C=O moiety of DMC caused by the antisolvent, which decrease the binding energy of the Li+···solvent and Li+···anion interactions. It also has beneficial effects on interfacial ion desolvation and Li+ transport. Furthermore, antisolvents also favor reducing the lowest unoccupied molecular orbital (LUMO) energy level of the solvated clusters, and FSI- anions show a decreased reduction stability. Consequently, the influence of antisolvents on the interfacial chemical and electrochemical activities of solvation structures cannot be ignored. This finding introduces a new way to improve battery performance.
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Affiliation(s)
- Yanzhou Wu
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Aiping Wang
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Qiao Hu
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Hongmei Liang
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Hong Xu
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Li Wang
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
| | - Xiangming He
- Institute
of Nuclear and New Energy Technology, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084, China
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12
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Zhang J, Shi J, Gordon LW, Shojarazavi N, Wen X, Zhao Y, Chen J, Su CC, Messinger RJ, Guo J. Performance Leap of Lithium Metal Batteries in LiPF 6 Carbonate Electrolyte by a Phosphorus Pentoxide Acid Scavenger. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36679-36687. [PMID: 35930841 DOI: 10.1021/acsami.2c09267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Phosphorus pentoxide (P2O5) is investigated as an acid scavenger to remove the acidic impurities in a commercial lithium hexafluorophosphate (LiPF6) carbonate electrolyte to improve the electrochemical properties of Li metal batteries. Nuclear magnetic resonance (NMR) measurements reveal the detailed reaction mechanisms of P2O5 with the LiPF6 electrolyte and its impurities, which removes hydrogen fluoride (HF) and difluorophosphoric acid (HPO2F2) and produces phosphorus oxyfluoride (POF3), OF2P-O-PF5- anions, and ethyl difluorophosphate (C2H5OPOF2) as new electrolyte species. The P2O5-modified LiPF6 electrolyte is chemically compatible with a Li metal anode and LiNi0.6Mn0.2Co0.2O2 (NMC622) cathode, generating a POxFy-rich solid electrolyte interphase (SEI) that leads to highly reversible Li electrodeposition, while eliminating transition metal dissolution and cathode particle cracking. The excellent electrochemical properties of the P2O5-modified LiPF6 electrolytes are demonstrated on Li||NMC622 pouch cells with 0.4 Ah capacity, 50 μm Li anode, 3 mAh cm-2 NMC622 cathode, and 3 g Ah-1 electrolyte/capacity ratio. The pouch cells can be galvanostatically cycled at C/3 for 230 cycles with 87.7% retention.
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Affiliation(s)
- Jian Zhang
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, United States
| | - Jiayan Shi
- Department of Chemical and Environmental Engineering, University of California - Riverside, Riverside, California 92521, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Leo W Gordon
- Department of Chemical Engineering, The City College of New York, CUNY, New York, New York 10031, United States
| | - Nastaran Shojarazavi
- Department of Chemical and Environmental Engineering, University of California - Riverside, Riverside, California 92521, United States
| | - Xiaoyu Wen
- Department of Chemical and Environmental Engineering, University of California - Riverside, Riverside, California 92521, United States
| | - Yifan Zhao
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, United States
| | - Jianjun Chen
- Department of Chemical and Environmental Engineering, University of California - Riverside, Riverside, California 92521, United States
| | - Chi-Cheung Su
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Robert J Messinger
- Department of Chemical Engineering, The City College of New York, CUNY, New York, New York 10031, United States
| | - Juchen Guo
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, United States
- Department of Chemical and Environmental Engineering, University of California - Riverside, Riverside, California 92521, United States
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13
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Yao N, Chen X, Fu ZH, Zhang Q. Applying Classical, Ab Initio, and Machine-Learning Molecular Dynamics Simulations to the Liquid Electrolyte for Rechargeable Batteries. Chem Rev 2022; 122:10970-11021. [PMID: 35576674 DOI: 10.1021/acs.chemrev.1c00904] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rechargeable batteries have become indispensable implements in our daily life and are considered a promising technology to construct sustainable energy systems in the future. The liquid electrolyte is one of the most important parts of a battery and is extremely critical in stabilizing the electrode-electrolyte interfaces and constructing safe and long-life-span batteries. Tremendous efforts have been devoted to developing new electrolyte solvents, salts, additives, and recipes, where molecular dynamics (MD) simulations play an increasingly important role in exploring electrolyte structures, physicochemical properties such as ionic conductivity, and interfacial reaction mechanisms. This review affords an overview of applying MD simulations in the study of liquid electrolytes for rechargeable batteries. First, the fundamentals and recent theoretical progress in three-class MD simulations are summarized, including classical, ab initio, and machine-learning MD simulations (section 2). Next, the application of MD simulations to the exploration of liquid electrolytes, including probing bulk and interfacial structures (section 3), deriving macroscopic properties such as ionic conductivity and dielectric constant of electrolytes (section 4), and revealing the electrode-electrolyte interfacial reaction mechanisms (section 5), are sequentially presented. Finally, a general conclusion and an insightful perspective on current challenges and future directions in applying MD simulations to liquid electrolytes are provided. Machine-learning technologies are highlighted to figure out these challenging issues facing MD simulations and electrolyte research and promote the rational design of advanced electrolytes for next-generation rechargeable batteries.
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Affiliation(s)
- Nan Yao
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiang Chen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhong-Heng Fu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Qiang Zhang
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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14
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Yao J, Shi M, Li W, Han Q, Wu M, Yang W, Wang E, Zhao M, Lu X. Fluorinated Ether‐Based Electrolyte for Supercapacitors with Increased Working Voltage and Suppressed Self‐discharge. ChemElectroChem 2022. [DOI: 10.1002/celc.202200223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jing Yao
- Guangxi University School of Resources, Environment and Materials CHINA
| | - Mingwei Shi
- Chinese Academy of Sciences Institute of Nanoenergy and Nanosystems CHINA
| | - Wenshi Li
- Chinese Academy of Sciences Beijing Institute of Nanoenergy and Nanosystems CHINA
| | - Qiankun Han
- Guangxi University School of Resources, Environment and Materials CHINA
| | - Maosheng Wu
- Chinese Academy of Sciences Beijing Institute of Nanoenergy and Nanosystems CHINA
| | - Wei Yang
- Chinese Academy of Sciences Beijing Institute of Nanoenergy and Nanosystems CHINA
| | - Engui Wang
- Guangxi University School of Resources, Environment and Materials CHINA
| | - Man Zhao
- Chinese Academy of Sciences Beijing Institute of Nanoenergy and Nanosystems CHINA
| | - Xianmao Lu
- Beijing Institute of Nanoenergy & Nanosystems Xueyuan Road #30Tiangong Tower C 100083 Beijing CHINA
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15
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Kuang S, Hua H, Lai P, Li J, Deng X, Yang Y, Zhao J. Anion-Containing Solvation Structure Reconfiguration Enables Wide-Temperature Electrolyte for High-Energy-Density Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19056-19066. [PMID: 35420775 DOI: 10.1021/acsami.2c02221] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The demand for high-energy-density lithium batteries (LBs) that work under a wide temperature range (-40 to 60 °C) has been increasing recently. However, the conventional lithium hexafluorophosphate (LiPF6)-based ester electrolyte with a solvent-based solvation structure has limited the practical application of LBs under extreme temperature conditions. In this work, a novel localized high-concentration electrolyte (LHCE) system is designed to achieve the anion-containing solvation structure with less free solvent molecules using lithium difluorophosphate (LiPO2F2) as a lithium salt, which enables wide-temperature electrolyte for LBs. The optimized solvation structure contributes to the cathode-electrolyte interface (CEI) with abundant LiF and P-O components on the surface of the LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode, effectively inhibiting the decomposition of electrolyte and the dissolution of transition-metal ions (TMIs). Moreover, the weakened Li+-dipole interaction is also beneficial to the desolvation process. Therefore, the 4.3 V Li||NCM523 cell using the modified electrolyte maintains a high capacity retention of 81.0% after 200 cycles under 60 °C. Meanwhile, a considerable capacity of 70.9 mAh g-1 (42.0% of that at room temperature) can be released at an extremely low temperature of -60 °C. This modified electrolyte dramatically enhances the electrochemical stability of NCM523 cells by regulating the solvation structure, providing guidelines for designing a multifunctional electrolyte that works under a wide temperature range.
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Affiliation(s)
- Silan Kuang
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Haiming Hua
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Pengbin Lai
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jialin Li
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Xiaodie Deng
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yang Yang
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jinbao Zhao
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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16
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Fan H, Liu X, Luo L, Zhong F, Cao Y. All-Climate High-Voltage Commercial Lithium-Ion Batteries Based on Propylene Carbonate Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:574-580. [PMID: 34936327 DOI: 10.1021/acsami.1c16767] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Propylene carbonate (PC)-based electrolytes have many attractive advantages over the commercially used ethylene carbonate (EC)-based electrolytes like a wider operating temperature and higher oxidation stability. Therefore, PC-based electrolytes become the potential candidate for lithium-ion batteries with higher energy density, longer lifespan, and better low- and high-temperature performance. In spite of the superiority, PC is incompatible with the graphite anode because PC fails to passivate the graphite anode, leading to severe decomposition and gas evolution, which seriously restrict the development of the PC-based electrolytes. Nevertheless, it is recently found that the usage of diethyl carbonate (DEC) as a cosolvent will greatly improve the anodic tolerance of PC to realize the reversible lithiation/delithiation of the graphite anode in the PC-based electrolyte. It is because DEC induces anions into the solvation shell of Li+ to form an anion-induced ion-solvent-coordinated (AI-ISC) structure with higher reduction stability. In this work, we fabricated 4.4 V pouch cells to assess in detail the practical viability of the PC-based electrolyte in a commercial battery system. In comparison to conventionally used EC-based cells, the pouch cells with the PC-based electrolyte exhibit more excellent high-voltage tolerance and electrochemical performance at all temperature ranges (-40 to 85 °C), demonstrating the wide application prospect of the PC-based electrolyte.
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Affiliation(s)
- Haiman Fan
- Shenzhen SaiJiaoYang Energy & Science Technology Co., Ltd., Baolong 2nd Rd., Longgang District, Shenzhen 518116, P. R. China
| | - Xingwei Liu
- Engineering Research Center of Organosilicon Compounds & Materials of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Laibing Luo
- Engineering Research Center of Organosilicon Compounds & Materials of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Faping Zhong
- Shenzhen National Engineering Research Center of Advanced Energy Storage Materials, Shenzhen 518000, P. R. China
| | - Yuliang Cao
- Engineering Research Center of Organosilicon Compounds & Materials of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
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17
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Cui X, Zhang J, Wang J, Wang P, Sun J, Dong H, Zhao D, Li C, Wen S, Li S. Antioxidation Mechanism of Highly Concentrated Electrolytes at High Voltage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59580-59590. [PMID: 34851095 DOI: 10.1021/acsami.1c19969] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
It has been researched that highly concentrated electrolytes (HCEs) can solve the problem of the excessive decomposition of dilute electrolytes at a high voltage, but the mechanism is not clear. In this work, the antioxidation mechanism of HCE at a high voltage was investigated by in situ electrochemical tests and theoretical calculations from the perspective of the solvation structure and physicochemical property. The results indicate that compared with the dilute electrolyte, the change of solvation structures in HCE makes more PF6- anions easier to be oxidized prior to the dimethyl carbonate solvents, resulting in a more stable cathode-electrolyte interphase (CEI) film. First, the lower oxidation potential of the solvation structure with more PF6- anions inhibits the side effects of the electrolyte effectively. Second, the CEI film, consisted of LiF and LixPOyFz generated from the oxidation of PF6- and Li3PO4 generated from the hydrolysis of LiPF6 via the soluble PO2F2- intermediate, can reduce the interface impedance and improve the conductivity. Intriguingly, the high viscosity of HCEs and the hydrolysis of LiPF6 are proven to play a positive role in enhancing the interfacial stability of the electrolyte/electrode at a high voltage. This study builds a deep understanding of the bulk and interface properties of HCEs and provides theoretical support for their large-scale application in high-voltage battery materials.
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Affiliation(s)
- Xiaoling Cui
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
- Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou 730050, P.R. China
| | - Jingjing Zhang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Jie Wang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Peng Wang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Jinlong Sun
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Hong Dong
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Dongni Zhao
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
- Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou 730050, P.R. China
| | - Chunlei Li
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
- Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou 730050, P.R. China
| | - Shuxiang Wen
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
| | - Shiyou Li
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
- Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou 730050, P.R. China
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18
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Fan X, Wang C. High-voltage liquid electrolytes for Li batteries: progress and perspectives. Chem Soc Rev 2021; 50:10486-10566. [PMID: 34341815 DOI: 10.1039/d1cs00450f] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Since the advent of the Li ion batteries (LIBs), the energy density has been tripled, mainly attributed to the increase of the electrode capacities. Now, the capacity of transition metal oxide cathodes is approaching the limit due to the stability limitation of the electrolytes. To further promote the energy density of LIBs, the most promising strategies are to enhance the cut-off voltage of the prevailing cathodes or explore novel high-capacity and high-voltage cathode materials, and also replacing the graphite anode with Si/Si-C or Li metal. However, the commercial ethylene carbonate (EC)-based electrolytes with relatively low anodic stability of ∼4.3 V vs. Li+/Li cannot sustain high-voltage cathodes. The bottleneck restricting the electrochemical performance in Li batteries has veered towards new electrolyte compositions catering for aggressive next-generation cathodes and Si/Si-C or Li metal anodes, since the oxidation-resistance of the electrolytes and the in situ formed cathode electrolyte interphase (CEI) layers at the high-voltage cathodes and solid electrolyte interphase (SEI) layers on anodes critically control the electrochemical performance of these high-voltage Li batteries. In this review, we present a comprehensive and in-depth overview on the recent advances, fundamental mechanisms, scientific challenges, and design strategies for the novel high-voltage electrolyte systems, especially focused on stability issues of the electrolytes, the compatibility and interactions between the electrolytes and the electrodes, and reaction mechanisms. Finally, novel insights, promising directions and potential solutions for high voltage electrolytes associated with effective SEI/CEI layers are proposed to motivate revolutionary next-generation high-voltage Li battery chemistries.
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Affiliation(s)
- Xiulin Fan
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Chunsheng Wang
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
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19
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Yuan S, Kong T, Zhang Y, Dong P, Zhang Y, Dong X, Wang Y, Xia Y. Advanced Electrolyte Design for High‐Energy‐Density Li‐Metal Batteries under Practical Conditions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108397] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shouyi Yuan
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Fudan University Shanghai 200433 P. R. China
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming 650093 P. R. China
| | - Taoyi Kong
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Fudan University Shanghai 200433 P. R. China
| | - Yiyong Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming 650093 P. R. China
| | - Peng Dong
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming 650093 P. R. China
| | - Yingjie Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming 650093 P. R. China
| | - Xiaoli Dong
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Fudan University Shanghai 200433 P. R. China
| | - Yonggang Wang
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Fudan University Shanghai 200433 P. R. China
| | - Yongyao Xia
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Fudan University Shanghai 200433 P. R. China
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20
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Yuan S, Kong T, Zhang Y, Dong P, Zhang Y, Dong X, Wang Y, Xia Y. Advanced Electrolyte Design for High-Energy-Density Li-Metal Batteries under Practical Conditions. Angew Chem Int Ed Engl 2021; 60:25624-25638. [PMID: 34331727 DOI: 10.1002/anie.202108397] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/09/2022]
Abstract
Given the limitations inherent in current intercalation-based Li-ion batteries, much research attention has focused on potential successors to Li-ion batteries such as lithium-sulfur (Li-S) batteries and lithium-oxygen (Li-O2 ) batteries. In order to realize the potential of these batteries, the use of metallic lithium as the anode is essential. However, there are severe safety hazards associated with the growth of Li dendrites, and the formation of "dead Li" during cycles leads to the inevitable loss of active Li, which in the end is undoubtedly detrimental to the actual energy density of Li-metal batteries. For Li-metal batteries under practical conditions, a low negative/positive ratio (N/P ratio), a electrolyte/cathode ratio (E/C ratio) along with a high-voltage cathode is prerequisite. In this Review, we summarize the development of new electrolyte systems for Li-metal batteries under practical conditions, revisit the design criteria of advanced electrolytes for practical Li-metal batteries and provide perspectives on future development of electrolytes for practical Li-metal batteries.
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Affiliation(s)
- Shouyi Yuan
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China.,National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Taoyi Kong
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Yiyong Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Peng Dong
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Yingjie Zhang
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Xiaoli Dong
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Yonggang Wang
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Yongyao Xia
- Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
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21
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Qu J, Wang S, Wu F, Zhang C. Effect of Electrolyte Additives on the Cycling Performance of Li Metal and the Kinetic Mechanism Analysis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18283-18293. [PMID: 33835794 DOI: 10.1021/acsami.1c01595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lithium metal secondary batteries (LMBs) have extremely high energy densities and are considered the most promising energy storage and conversion systems in the future. We start with the formation and growth process of the Li metal deposited layer to reveal and clarify the reasons for the apparent comprehensive performance of the Li metal anode. Specifically, under the conditions of ether electrolyte and typical additives, the apparent Coulombic efficiency, micromorphology of the deposition layer, SEI information, and the kinetic mechanism of the Li plating/stripping process under a series of current density conditions are studied. The results show that in the electrolyte containing LiNO3, Li metal exhibits excellent cycling performance, the Li plating layer is denser, and the particles in the plating layer are smooth and uniform. In the electrolyte containing FEC, the performance of Li metal is also improved to some extent. Then, we use microelectrode technology to obtain the kinetic parameters of elementary steps in the deposition process of Li metal and find that the stability of the kinetic parameters of mass transfer, interface, and surface steps and their good matching degree are conducive to the good cycling stability of the Li metal anode. This study reveals the kinetic relationship among the apparent comprehensive performances of Li metal, the electrolyte composition, and operating conditions, which provides a reliable dynamic reference for screening and optimizing electrolytes.
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Affiliation(s)
- Jinyi Qu
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Simin Wang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Feng Wu
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
- The National High Technology Development Center of Green Materials, Beijing 100081, China
- Beijing Key Laboratory of Environmental Science and Engineering, Beijing 100081, China
| | - Cunzhong Zhang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
- The National High Technology Development Center of Green Materials, Beijing 100081, China
- Beijing Key Laboratory of Environmental Science and Engineering, Beijing 100081, China
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22
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Gradient Solid Electrolyte Interphase and Lithium‐Ion Solvation Regulated by Bisfluoroacetamide for Stable Lithium Metal Batteries. Angew Chem Int Ed Engl 2021; 60:6600-6608. [DOI: 10.1002/anie.202013993] [Citation(s) in RCA: 156] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/09/2020] [Indexed: 11/07/2022]
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23
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Li F, He J, Liu J, Wu M, Hou Y, Wang H, Qi S, Liu Q, Hu J, Ma J. Gradient Solid Electrolyte Interphase and Lithium‐Ion Solvation Regulated by Bisfluoroacetamide for Stable Lithium Metal Batteries. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013993] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fang Li
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Jian He
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Jiandong Liu
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Mingguang Wu
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Yuyang Hou
- CSIRO Mineral Resources Clayton VIC 3168 Australia
| | - Huaping Wang
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Shihan Qi
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Quanhui Liu
- School of Physics and Electronics Hunan University Changsha 410082 China
| | - Jiawen Hu
- State Key Laboratory for Chemo/Biosensing and Chemometrics, and College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Jianmin Ma
- School of Physics and Electronics Hunan University Changsha 410082 China
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