LiCoO_2的热稳定性与循环性能  

Thermal stability and cyclic performance of LiCoO_2

作　　者：王静[1] 万新华[2] 余仲宝[2] 刘庆国[2] 

机构地区：[1]河北理工学院,河北唐山063009 [2]北京科技大学固体电解质研究室,北京100083

出　　处：《电源技术》2004年第2期78-80,共3页Chinese Journal of Power Sources

摘　　要：汽车动力电池的开发,促进了锂离子蓄电池的大型化。随着锂离子蓄电池的大型化,电池高温稳定性和电池安全性能的研究显得更为重要。以不同粒度和不同pH值的LiCoO2为正极材料,组装成AA型锂离子蓄电池,研究其循环性能和热稳定性。结果表明平均粒径为11 μm左右、pH≤7的LiCoO2材料,无论循环性能还是热稳定性都有优良的表现。With the aim of developing large-scale lithium ion batteries with good cycleability and safety for EV and HEV batteries, thermal stability and cyclic performance of AA size batteries those were assembled by using LiCoO2 samples with different particle sizes and different pH values as cathode materials were studied. The results show that the cathode material with the particle size of about 11μm and pH≤7 shows better performances.

关 键 词：锂离子蓄电池 LICOO2 热稳定性 循环性能 

分 类 号：TM912.2[电气工程—电力电子与电力传动]