Novel room temperature molten salt electrolyte based on LiTFSI and acetamide for lithium batteries

被引：144

作者：

Hu, YS ^{[1
]}

Li, H ^{[1
]}

Huang, XJ ^{[1
]}

Chen, LQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Lab Solid State Ion, Inst Phys, Beijing 100080, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2004年 / 6卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ionic conductivity; electrochemical stability window; RTMS; lithium batteries;

D O I：

10.1016/j.elecom.2003.10.009

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel room temperature molten salt (RTMS) electrolyte composed of lithium bis(trifluoromethane sulfone)imide (LiN (SO2CF3)(2), LiTFSI) and acetamide was found. Both LiTFSI and acetamide are solid at room temperature, but their mixture is a liquid at room temperature with a eutectic temperature of -67 degreesC at a molar ratio of 1:4 (LiTFSI:Acetamide). The room temperature ionic conductivities of some compositions of the RTMS exceed 10(-3) S/cm. The oxidation and reduction potentials of this RTMS electrolyte were observed at 4.4 and 0.7 V versus Li/Li+, respectively. In addition, a Li/RTMS/MnO2 test cell was constructed and tested using the above mentioned RTMS electrolyte. Due to its superior physicochemical properties, it can be suggested potential applications as lithium battery electrolytes. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：28 / 32

页数：5

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