Discharge-charge properties of Li/LiCoO2 cell using room temperature ionic liquids (RTILs) based on quaternary ammonium cation -: Effect of the structure

被引：174

作者：

Sakaebe, H ^{[1
]}

Matsumoto, H ^{[1
]}

Tatsumi, K ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Ubiquitous Energy Devices, Ikeda, Osaka 5638577, Japan

来源：

JOURNAL OF POWER SOURCES | 2005年 / 146卷 / 1-2期

关键词：

room temperature ionic liquid; quaternary ammonium; symmetry of anion; Li battery; interfacial stability;

D O I：

10.1016/j.jpowsour.2005.03.071

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：

The properties of the Li/LiCoO2 cell containing several RTILs with three different anions were investigated. Introducing the asymmetric nature to anionic species using amide improved the viscosity and conductivity of the RTIL, however, the rate properties of the cell was not enhanced very much. Declined cathodic stability seems to be responsible for the result. In the case of the stable system consisting of quaternary ammonium cation and imide anion, both of cycling properties and Coulombic efficiency during the cycling were satisfactory and the viscosity dominated the rate properties of the cell. The performance of the Li/LiCoO2 cell in this study was almost consistent with the stability of Li-electrolyte interface evaluated by ac impedance measurement. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：693 / 697

页数：5

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