STUDIES OF ELECTROCHEMICAL PROPERTIES OF LITHIUM COBALT OXIDE

被引:25
|
作者
YAO, CY [1 ]
KAO, TH [1 ]
CHENG, CH [1 ]
CHEN, JM [1 ]
HURNG, WM [1 ]
机构
[1] TSING HUA UNIV,INST MAT SCI & ENGN,HSINCHU,TAIWAN
关键词
LITHIUM INTERCALATION; LITHIUM; COBALT OXIDE;
D O I
10.1016/0378-7753(94)02132-M
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 characteristics of high-temperature (HT) LiCoO2 (900 degrees C) and low-temperature (LT) LiCoO2 (450 degrees C) were studied. From cyclic voltammetry results, lithium intercalating into LT-LiCoO2 generates two current peaks at 3.8 and 3.3 V, respectively, which is contrast to the intercalation of lithium into HT-LiCoO2. The resistance of lithium extraction is smaller than that of lithium insertion. The diffusion coefficients of Li+ ions in LiCoO2 have an order of 10(-9) cm(2)/s.
引用
收藏
页码:491 / 493
页数:3
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