储能科学与技术2024，Vol.13Issue(2)：495-502,8.DOI:10.19799/j.cnki.2095-4239.2023.0535
隔热材料布局方式对280 Ah磷酸铁锂电池热失控传播抑制效果的影响
Effect of thermal insulation material layout on thermal runaway propagation inhibition effect of 280 Ah lithium-iron phosphate battery
摘要
Abstract
The thermal runaway propagation(TRP)of Li-ion batteries poses a substantial fire and explosion risks,preventing their further widespread application.Herein,glass fiber aerogel and ceramic fiber mats are used to suppress the TRP in batteries,exploring the influence of the type and thickness of the insulation material on the suppression effect.Two module layout methods are designed:single barrier and spacer barrier modules.The former involves placing a piece of insulation material in every other battery,while the latter involves placing a piece of insulation material in every two batteries.Research results show that in a single barrier module,glass fiber aerogels with a thickness of 2 and 1 mm can effectively prevent TRP,and the temperature rises of the front and back surfaces of the protected battery are 193.6℃,86.1℃,and 222.6℃,86.8℃,respectively.However,a 2 mm-thick ceramic fiber felt can only delay the speed of TRP butnot completely prevent it.In the spacer barrier module,using a 2 mm glass fiber aerogel as a barrier results in a temperature rise of 168.3℃ and 56℃on the front and back surfaces of the protected battery,demonstrating that the spacer barrier module offers an enhanced protective effect on the battery under abuse conditions.To a certain extent,the results of this study alleviate the contradiction between the use of thermal insulation materials and the energy density of modules.The findings hold important theoretical guidance for the safety design of lithium-ion battery modules.关键词
锂离子电池安全/热失控传播/预防/隔热材料/布局方式Key words
lithium-ion battery/thermal runaway propagation/prevent/thermal insulation material/layout mode分类
信息技术与安全科学引用本文复制引用
雷旗开,余胤,彭鹏,陈满,金凯强,王青松..隔热材料布局方式对280 Ah磷酸铁锂电池热失控传播抑制效果的影响[J].储能科学与技术,2024,13(2):495-502,8.基金项目
国家重点研发计划项目课题(2021YFB2402004). （2021YFB2402004）
