隔热层对锂电池模组热失控蔓延特性影响的实验研究  

Experimental Study on the Effects of Thermal Insulation Layers on the Propagation Characteristics of Thermal Runaway in Lithiumion Battery Module

作　　者：常润泽 郑斌[1] 冯旭宁[2] 徐成善 王淮斌 陈立铎 王有镗 Chang Runze;Zheng Bin;Feng Xuning;Xu Chengshan;Wang Huaibin;Chen Liduo;Wang Youtang(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255049;Tsinghua University,State Key Laboratory of Automotive Safety and Energy,Beijing 10084;CATARC New Energy Automotive Test Center(Tianjin)Co.,Ltd.,Tianjin 300300)

机构地区：[1]山东理工大学交通与车辆工程学院,淄博255049 [2]清华大学,汽车安全与节能国家重点实验室,北京100084 [3]中汽研新能源汽车检验中心(天津)有限公司,天津300300

出　　处：《汽车工程》2021年第10期1448-1456,共9页Automotive Engineering

基　　金：国家自然科学基金(52076121,51806130);山东省自然科学基金(ZR2020ME176,ZR2020ME182)资助。

摘　　要：本文中对不同类型隔热层对电池模组热失控蔓延特性的影响进行了实验研究。结果表明:隔热层具有延长电池模组热蔓延时间、防止电池喷阀后起火和降低模组热蔓延最高温度的作用;其中预氧化丝气凝胶隔热层热蔓延抑制效果最优,其模组完全热蔓延时长是使用陶瓷气凝胶隔热层模组的138%,是使用纳米玻璃纤维隔热层模组的279%。In this paper,an experimental study on the effects of different types of heat insulation layer on the propagation characteristics of thermal runaway in battery modules is conducted.The results show that heat insulation layer can extend the heat spread time of battery module,prevent the fire caused by valve eruption in battery and lower the peak temperature in the thermal runaway of battery module.Among them,the thermal runaway propagation effect of the insulation layer of preoxidized fibers aerogel has the best effect in suppressing the propagation of thermal runaway.Its total propagation time of thermal runaway is 138%longer than that of ceramic aerogel,and 279%longer than that of nano-glass fiber.

关 键 词：锂电池模组 隔热层 热失控 热蔓延抑制 气凝胶 

分 类 号：TM912[电气工程—电力电子与电力传动]