电池2024，Vol.54Issue(6)：821-825,5.DOI:10.19535/j.1001-1579.2024.06.012
软包装锂离子电池封装寿命评估
Sealing life assessment of pouch Li-ion battery
崔杏辉 1杨大鹏1
作者信息
- 1. 中航锂电(洛阳)有限公司,河南 洛阳 471003
- 折叠
摘要
Abstract
The pouch Li-ion battery show suffer expansion,internal gas production,water vapor penetration and other problems caused by temperature,humidity and other environmental conditions in use.This will result in seal failure,the sealing life is reduced,then the service life will be affected.The accelerated aging tests with high temperature,high temperature and high humidity conditions are conducted,the water vapor permeability and bonding strength in the hot sealing area of battery are studied.Based on the Arrhenius model and Hallberg-Peck model,the sealing life of battery under conventional stress through the water vapor penetration test is obtained,which is 6.31 a.The sealing life of battery under 25℃through the high temperature test is 29.69 a.The sealing life of battery under conventional stress through the high temperature and high humidity test is 33.18 a.Within a certain range of accelerating stress,this method can quickly predict the sealing life of battery and shorten the test time.关键词
软包装锂离子电池/封装/铝塑膜/加速老化试验/寿命预测Key words
pouch Li-ion battery/sealing/aluminum laminated film/accelerated aging test/lifetime prediction分类
信息技术与安全科学引用本文复制引用
崔杏辉,杨大鹏..软包装锂离子电池封装寿命评估[J].电池,2024,54(6):821-825,5.
