TEM characterization of the passivating layer formed during the reduction of graphite electrodes in selected electrolytes

被引：11

作者：

Naji, A

Ghanbaja, J

Willmann, P

Billaud, D

机构：

[1] Ctr Natl Etud Spatiales, F-31055 Toulouse, France

[2] Univ Nancy 1, LCSM, F-54506 Vandoeuvre Nancy, France

来源：

JOURNAL OF POWER SOURCES | 1999年 / 81卷

关键词：

graphite; intercalation; passivating layer; electrochemical properties; TEM; EELS;

D O I：

10.1016/S0378-7753(99)00193-7

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 electrochemical intercalation of lithium ions into graphite was studied in various electrolytes. The first cycle is accompanied by the irreversible process attributed to the formation of a passivating layer. The reduction of Cl-EC and EC begins at potentials equal to 1.7 and 0.9 V vs. Li+/Li, respectively. The electrochemical behaviour is considerably affected by the nature of the salt. Contrary to LiBF4, a good cycleability is obtained with LiClO4 and LiAsF6. (C) 1999 Elsevier Science S.A. All rights reserved.

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收藏

页码：207 / 211

页数：5

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