A new Lewis-base ionic liquid comprising a mono-charged diamine structure: A highly stable electrolyte for lithium electrochemistry

被引:53
作者
Yoshizawa-Fujita, M
MacFarlane, DR
Howlett, PC
Forsyth, M
机构
[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
[2] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia
基金
澳大利亚研究理事会;
关键词
ionic liquid; Lewis base; lithium electrochemistry; ionic conductivity;
D O I
10.1016/j.elecom.2006.01.008
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A new Lewis-base ionic liquid (IL) based on mono-charged 1,4-diazabicyclo[2.2.2]octane (dabco) was synthesized and its thermal and electrochemical behaviour was characterized. The dabco-based IL with bis(trifluoromethanesulfonyl)amide (TFSA) anion melts at 76 degrees C when the N-substituted alkyl chain length is 2. The dabco-based IL showed a wide electrochemical window of over 4 V ranging from -3.5 to +1.5 V vs. Fc/Fc(+) and was able to deposit and strip lithium from a nickel substrate at reasonable efficiency. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:445 / 449
页数:5
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