Vinyl ethylene carbonate as an additive to ionic liquid electrolyte for lithium ion batteries

被引：43

作者：

Fu, Yanbao ^{[1
]}

Chen, Cheng ^{[1
]}

Qiu, Chenchen ^{[1
]}

Ma, Xiaohua ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2009年 / 39卷 / 12期

关键词：

Vinyl ethylene carbonate; Solid electrolyte interface; Ionic liquid; Cyclic voltammetry; Additives; Lithium ion batteries; LITHIATED GRAPHITE; ANODE;

D O I：

10.1007/s10800-009-9949-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this research, we investigated the potential application of vinyl ethylene carbonate (VEC) and ethylene carbonate (EC) as solid electrolyte interface (SEI) film-forming additive in 1-ethyl-3-methylimidazolium (EMI)-bis(trifluoromethyl-sulfonyl) imide (TFSI)-LiTFSI ionic liquid electrolyte (IL). The electrochemical performance of natural graphite (NG7) was studied in LiTFSI/EMI-TFSI containing different weight percent of EC/VEC via cyclic voltammetry (CV), electrochemical impedance spectrum (EIS), and galvanostatic charge/discharge cycles. Temperature effect on the discharge/charge performance of NG7 electrode in the researched IL electrolyte was also discussed.

引用

页码：2597 / 2603

页数：7

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