| An Anion-Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes | |
| Wang, Zhenxing1,2; Qi, Fulai1,2; Yin, Lichang1; Shi, Ying1,2; Sun, Chengguo3; An, Baigang3; Cheng, Hui-Ming1,4; Li, Feng1,2 | |
| Corresponding Author | Li, Feng(fli@imr.ac.cn) |
| 2020-02-17 | |
| Source Publication | ADVANCED ENERGY MATERIALS
 |
| ISSN | 1614-6832 |
| Volume | 10Issue:14Pages:9 |
| Abstract | 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. |
| Keyword | anions energy barriers lithium metal anodes solid electrolyte interphase solvation sheaths |
| Funding Organization | 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 |
| DOI | 10.1002/aenm.201903843 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000513651100001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137554 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Feng |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Univ Sci & Technol Liaoning, Sch Chem Engn, Anshan 114051, Peoples R China 4.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China |
| Recommended Citation 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. |
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