摘要
采用商品化的LiMn2O4和石墨作为正负极材料制作锰酸锂动力电池(347080-16Ah),测试其热冲击,穿刺,短路和过充安全实验。研究发现,电池经过热冲击、穿刺和短路测试后,电池未发生爆炸起火现象。但是3C/10V过充后,电池发生爆炸,并放出大量黑烟,电池表面最高温度达到290℃。黑烟的主要成分是CO2、CO、H2、CH4、C2H6、C2H4和炭黑,爆炸后的粉末主要成分为C、MnO和Li2CO3。
The power battery（347080-16 Ah） was manufactured with the commercial LiMn2O4 as cathode and graphite as anode.The heat concussion,puncture,short circuit and overcharge performance of batteries were tested.The LiMn2O4 battery shows good safety performance and doesn＇t explode after heat concussion,puncture,and short circuit test.But the battery blasted after 3 C/10 V overcharge and released black smoke.The maximal temperature of battery surface reached 290 ℃ after blast.The smoke was made up of CO2,CO,H2,CH4,C2H6,C2H4 and carbon powers.The carbon,MnO,and Li2CO3 were observed in the exploded powders.
出处
《电源技术》
CAS
CSCD
北大核心
2011年第6期652-655,共4页
Chinese Journal of Power Sources
基金
江苏大学高级人才启动基金(10JDG041)
关键词
锰酸锂电池
安全性能
爆炸
LiMn2O4 battery
safety performance
blast
