Plastic crystalline phases of crown ether: salt complexes and their utilization in lithium-metal batteries

被引：23

作者：

Abouimrane, Ali ^{[1
]}

Alarco, Pierre-Jean ^{[2
]}

Abu-Lebdeh, Yaser ^{[1
]}

Davidson, Isobel ^{[1
]}

Armand, Michel ^{[3
]}

机构：

[1] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada

[2] Univ Montreal, Dept Chem, Montreal, PQ H3C 3J7, Canada

[3] Univ Picardie Jules Verne, LRCS, UMR CNRS 6007, F-80039 Amiens, France

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

关键词：

electrolyte; crown ether; plastic crystal; lithium battery;

D O I：

10.1016/j.jpowsour.2007.06.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have shown that crown ether complexes with the lithium salt, lithium bis-(trifluoromethanesulphonyl) imide (LiTFSI), are plastic crystals as evidenced by DSC and their mechanical properties. The conductivity of the complexes was measured and found to vary as a function of crown ether:salt molar ratio. Our study of the (18-Crown-6)-LiTFSI (1/1) solid complex showed that it has a high conductivity reaching similar to 10(-4) S cm(-1) at 50 degrees C and an electrochemical stability of over 4 V enabling its use in a lithium-metal battery. A lithium battery with 1:1 (18-Crown-6)-LiTFSI as electrolyte was assembled, tested, and found to exhibit reversible Li+ transport. Crown Copyright (C) 2007 Published by Elsevier B.V. All rights reserved.

引用

页码：1193 / 1196

页数：4

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