中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 金属研究所
  3. 中国科学院金属研究所
An Anion-Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes

文献类型：期刊论文

作者Wang, Zhenxing2,3; Qi, Fulai2,3; Yin, Lichang2; Shi, Ying2,3; Sun, Chengguo4; An, Baigang4; Cheng, Hui-Ming1,2; Li, Feng2,3
刊名ADVANCED ENERGY MATERIALS
出版日期2020-02-17
卷号10期号:14页码:9
关键词anions energy barriers lithium metal anodes solid electrolyte interphase solvation sheaths
ISSN号1614-6832
DOI10.1002/aenm.201903843
通讯作者Li, Feng(fli@imr.ac.cn)
英文摘要The spatial distribution and transport characteristics of lithium ions (Li+) in the electrochemical interface region of a lithium anode in a lithium ion battery directly determine Li+ deposition behavior. The regulation of the Li+ solvation sheath on the solid electrolyte interphase (SEI) by electrolyte chemistry is key but challenging. Here, 1 m lithium trifluoroacetate (LiTFA) is induced to the electrolyte to regulate the Li+ solvation sheath, which significantly suppresses Li dendrite formation and enables a high Coulombic efficiency of 98.8% over 500 cycles. With its strong coordination between the carbonyl groups (C(sic)O) and Li+, TFA(-) modulates the environment of the Li+ solvation sheath and facilitates fast desolvation kinetics. In addition, due to relatively smaller lowest unoccupied molecular orbital energy than solvents, TFA(-) has a preferential reduction to produce a stable SEI with uniform distribution of LiF and Li2O. Such stable SEI effectively reduces the energy barrier for Li+ diffusion, contributing to low nucleation overpotential, fast ion transfer kinetics, and uniform Li+ deposition with high cycling stability. This work provides an alternative insight into the design of interface chemistry in terms of regulating anions in the Li+ solvation sheath. It is anticipated that this anion-tuned strategy will pave the way to construct stable SEIs for other battery systems.
资助项目National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51972312] ; National Natural Science Foundation of China[51472249] ; National Natural Science Foundation of China[51902316] ; Ministry of Science and Technology of the People's Republic of China[2016YFA0200100] ; Ministry of Science and Technology of the People's Republic of China[2016YFB0100100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; Key Research Program of the Chinese Academy of Sciences[KGZD-EW-T06] ; Bureau of Industry and Information Technology of Shenzhen for the 2017 Graphene Manufacturing Innovation Center Project[201901171523]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种英语
WOS记录号WOS:000513651100001
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; Ministry of Science and Technology of the People's Republic of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Bureau of Industry and Information Technology of Shenzhen for the 2017 Graphene Manufacturing Innovation Center Project
源URL[http://ir.imr.ac.cn/handle/321006/137553]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Feng
作者单位1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
4.Univ Sci & Technol Liaoning, Sch Chem Engn, Anshan 114051, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Zhenxing,Qi, Fulai,Yin, Lichang,et al. An Anion-Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes[J]. ADVANCED ENERGY MATERIALS,2020,10(14):9.
APA Wang, Zhenxing.,Qi, Fulai.,Yin, Lichang.,Shi, Ying.,Sun, Chengguo.,...&Li, Feng.(2020).An Anion-Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes.ADVANCED ENERGY MATERIALS,10(14),9.
MLA Wang, Zhenxing,et al."An Anion-Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes".ADVANCED ENERGY MATERIALS 10.14(2020):9.

入库方式： OAI收割

来源：金属研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。