Liquid electrolyte based on lithium bis-fluorosulfonyl imide salt: Aluminum corrosion studies and lithium ion battery investigations

JOURNAL OF POWER SOURCES

卷:189

Article; Proceedings Paper

Abouimrane, A.¹  Ding, J.¹  Davidson, I. J.¹ 

[1] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R6, Canada

关键词: Lithium ion battery;    Electrolyte salt;    LiFSI;    Aluminum corrosion;   

DOI  :  10.1016/j.jpowsour.2008.08.077

来源: Elsevier

【 摘 要 】

The performance of a liquid electrolyte composed of lithium bis-fluorosulfonyl imide (LiSFI) in a 1: 1 volume of ethylene carbonate and dimethyl carbonate is evaluated for use in lithium ion batteries. Imide salts offer the benefits of higher thermal stability and could provide a safer alternative to LiPF6 which is prone to the formation of HF. However, the most studied lithium imide salt, lithium bis(trifluoromethanesulfonyl) imide, is well known to have a problem with corrosion of aluminum which is commonly used as the cathode current collector. Consequently, the corrosion properties of liquid electrolytes based on lithium bis-fluorosulfonyl imide are also investigated. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

【 授权许可】

Free