Storage characteristics of cathodes for Li-ion batteries

被引：153
|
作者：
Pistoia, G
Antonini, A
Rosati, R
Zane, D
机构：
[1] Ctro. Stud. per la Elettrochimica C., C.N.R., 00161 Rome
来源：
ELECTROCHIMICA ACTA | 1996年 / 41卷 / 17期
关键词：
storage of Li cells; self-discharge; ternary oxide cathodes; impedance spectroscopy; organic electrolytes;
D O I：
10.1016/0013-4686(96)00122-3
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The storage characteristics of LiMn2O4, LiCoO2 and LiNiO2 have been evaluated in liquid electrolytes commonly used in lithium-ion batteries. All materials show self-discharge phenomena even at moderate oxidation levels. Three mechanisms are thought to be operating in this process: (a) electrolyte decomposition; (b) spontaneous Li+ reinsertion due to instability of the delithiated cathodes; (c) solubility by corrosion. Mechanisms (a) and (c) have been much in evidence in the impedance tests. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码：2683 / 2689
页数：7
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