汽车工程 ›› 2021, Vol. 43 ›› Issue (10): 1448-1456.doi: 10.19562/j.chinasae.qcgc.2021.10.005

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隔热层对锂电池模组热失控蔓延特性影响的实验研究

常润泽1,2,郑斌1(),冯旭宁2,徐成善2,王淮斌2,陈立铎3,王有镗1   

  1. 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
  • 收稿日期:2021-04-25 修回日期:2021-05-29 出版日期:2021-10-25 发布日期:2021-10-25
  • 通讯作者: 郑斌 E-mail:sdutzb@163.com
  • 基金资助:
    国家自然科学基金(52076121);山东省自然科学基金(ZR2020ME176)

Experimental Study on the Effects of Thermal Insulation Layers on the Propagation Characteristics of Thermal Runaway in Lithium⁃ion Battery Module

Runze Chang1,2,Bin Zheng1(),Xuning Feng2,Chengshan Xu2,Huaibin Wang2,Liduo Chen3,Youtang Wang1   

  1. 1.School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255049
    2.Tsinghua University,State Key Laboratory of Automotive Safety and Energy,Beijing 10084
    3.CATARC New Energy Automotive Test Center(Tianjin)Co. ,Ltd. ,Tianjin 300300
  • Received:2021-04-25 Revised:2021-05-29 Online:2021-10-25 Published:2021-10-25
  • Contact: Bin Zheng E-mail:sdutzb@163.com

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%。

关键词: 锂电池模组, 隔热层, 热失控, 热蔓延抑制, 气凝胶

Abstract:

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.

Key words: lithium?ion battery module, insulating layer, thermal runaway, heat propagation suppression, aerogel