电池2024，Vol.54Issue(6)：847-850,4.DOI:10.19535/j.1001-1579.2024.06.017
储能用280 Ah锂离子电池的热箱测试
Heat box test of 280 Ah Li-ion battery for energy storage
刘永环 1刘俊 1刘应航 1程友民 1唐俊 1邹志刚1
作者信息
- 1. 湖南德赛电池有限公司,湖南 长沙 410299
- 折叠
摘要
Abstract
To study the expansion and valve opening behavior of high-capacity batteries under different heat box test conditions,280 Ah battery for energy storage is used,the hot box test is conducted on the state of charge(0%SOC,100%SOC)under different temperature(130℃,145℃and 160℃)and time(30 min,120 min)conditions.Above 130℃,the surface temperature rise of the battery with 100%SOC is higher,indicating the existence of self heating behavior in the battery.Under the condition of 145℃,the internal resistance of the battery with 100%SOC is higher than others,indicating that the battery has self-heating at this temperature,which leads to higher internal temperature,greater damage to the internal electrolyte and separator.At 145℃,using the Antoine equation,the internal pressure is calculated to be about 0.69 MPa,the battery vent device opens.At 145℃,the volume expansion of the battery reaches its maximum value(about 700 mL,about 35%of the initial volume).At 160℃,the battery without clamps further expands in volume and explodes,thermal runaway does not occur on the battery with clamps of 100%SOC.关键词
储能电池/热箱测试/防爆阀/体积膨胀/电解液蒸气压力Key words
energy storage battery/hot box test/battery vent/volume expansion/electrolyte vapor pressure分类
信息技术与安全科学引用本文复制引用
刘永环,刘俊,刘应航,程友民,唐俊,邹志刚..储能用280 Ah锂离子电池的热箱测试[J].电池,2024,54(6):847-850,4.
