A transmission electron microscopy study of cycled LiCoO2

被引：54

作者：

Gabrisch, H ^{[1
]}

Yazami, R ^{[1
]}

Fultz, B ^{[1
]}

机构：

[1] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

electron microscopy; LiCoO2; spinel; phase transformation;

D O I：

10.1016/S0378-7753(03)00234-9

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：

A sample of LiCoO2 was prepared as a cathode for a lithium battery, and subjected to a large number of charge/discharge cycles that induced an irreversible loss in capacity. A transmission electron microscopy study of this material showed that the initial O3 crystal structure transformed partially to a cubic spinel phase, especially on the surfaces of the particles. We suggest that this spinel phase formation could be responsible in part for the irreversible capacity fade. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：674 / 679

页数：6

共 7 条

[1] The character of dislocations in LiCoO2 [J].