Effects of electrolyte additive on the electrochemical performance of Si/C anode for lithium-ion batteries | |
Wang, Jianping; Zhang, Lan; Zhang, Haitao | |
刊名 | IONICS |
2018-11-01 | |
卷号 | 24期号:11页码:3691-3698 |
关键词 | Additives Silicon Graphite Composite Anode Electrolytes Vinyl Tris(2-methoxyethoxy) Silane Electrochemical Performance |
ISSN号 | 0947-7047 |
DOI | 10.1007/s11581-018-2682-4 |
英文摘要 | Additives play critical roles on the performances of electrolytes. Vinyl tris(2-methoxyethoxy) silane (VTMS) was utilized as additive in the ethylene carbonate (EC)/ethyl methyl carbonate (EMC) electrolyte. Scanning electron microscopy (SEM) was used to examine the morphological evolution of electrodes after cycling. The morphology of the SEI film for Si/C electrode was observed by transmission electron microscopy (TEM). X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectra (EIS) techniques were employed to understand the effect of electrolytes containingVTMS on the formation of the SEI layer. Our experiments reveal that the capacity and cyclability of Si/C anode are improved due to formation of a stable SEI on the anode surface. These behaviors are confirmed by constant current charge-discharge and electrochemical impedance spectra (EIS) study. In particular, 5wt.% VTMS in EC:DEC (3:7wt.%) shows the most optimal reversible capacity and best cycle stability. Such a performance can be attributed to the formation of a more flexible SEI containing Li2CO3, LiF, and organosilicone compounds, which can reduce further reduction of electrolyte. |
资助项目 | National Key Research and Development Program of China[2016YFB0100303] ; International Cooperation and Exchange of the National Natural Science Foundation of China[51561145020] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA09010103] ; National Natural Science Foundation of China[21706261] ; Beijing Natural Science Foundation[L172045] ; Ford-China University Research Program, National Science Foundation of China[21506197] ; Ford-China University Research Program, National Science Foundation of China[21646011] |
WOS关键词 | Thin-film Electrode ; Fluoroethylene Carbonate ; Rechargeable Batteries ; Amorphous-silicon ; Graphite Anodes ; Composite ; Silane ; Binder ; Efficiency ; Solvents |
WOS研究方向 | Chemistry ; Electrochemistry ; Physics |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:000447736300037 |
资助机构 | National Key Research and Development Program of China ; International Cooperation and Exchange of the National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Ford-China University Research Program, National Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/26197] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Zhang, Haitao |
作者单位 | Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Jianping,Zhang, Lan,Zhang, Haitao. Effects of electrolyte additive on the electrochemical performance of Si/C anode for lithium-ion batteries[J]. IONICS,2018,24(11):3691-3698. |
APA | Wang, Jianping,Zhang, Lan,&Zhang, Haitao.(2018).Effects of electrolyte additive on the electrochemical performance of Si/C anode for lithium-ion batteries.IONICS,24(11),3691-3698. |
MLA | Wang, Jianping,et al."Effects of electrolyte additive on the electrochemical performance of Si/C anode for lithium-ion batteries".IONICS 24.11(2018):3691-3698. |
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