主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (5): 590-596.

• • 上一篇    下一篇

锂离子电池热失控监测参数研究综述

王芳1,2, 陈文涛1,2, 马彪1,2, 刘仕强1,2   

  1. (1. 中国汽车研究中心有限公司,天津 300300;2. 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:2024-01-10 修回日期:2024-03-06 出版日期:2024-05-15 发布日期:2024-05-15
  • 作者简介:王 芳(1977- ),女,江苏盐城人,中国汽车技术研究中心有限公司首席科学家,教授级高级工程师,主要从事汽车动力电池性能测试评价方面的研究,天津市东丽区先锋路68号,300300。
  • 基金资助:
    国家重点研发计划(2021YFB2402001)

A review of thermal runaway monitoring parameters of lithium-ion batteries

Wang Fang1,2, Chen Wentao1,2, Ma Biao1,2,Liu Shiqiang1,2   

  1. (1. China Automotive Technology & Research Center, Tianjin 300300, China; 2. CATARC New Energy Vehicle Test Center(Tianjin) Co. Ltd., Tianjin 300300, China)
  • Received:2024-01-10 Revised:2024-03-06 Online:2024-05-15 Published:2024-05-15

摘要: 锂离子电池因其能量密度高、自放电率低、循环寿命长、输出功率大等优点被广泛应用于储能领域,然而由于其不稳定性导致储能事故频发。从热失控-火灾蔓延角度出发,对热失控机理进行探究,基于产气成分及含量、膨胀力、表面温度、电压变化等热失控特征参数,对现有的磷酸铁锂体系电池早期预警(外部)方式进行综述,在此基础上,提出未来电池热失控早期预警(外置)的发展思路,为锂电池热失控早期监控及预警提供思路。

关键词: 锂离子电池, 热失控, 热失控特征参数, 早期预警

Abstract: Lithium ion battery is widely used in energy storage field because of its advantages of high energy density, low self discharge rate, long cycle life and large output power. However, due to its intrinsic instability, more and more accidents occur frequently in energy storage. From the point of view of thermal runaway and fire propagation, this paper explores the mechanism of thermal runaway. Based on the characteristics of thermal runaway such as gas generation composition and content, expansion force, surface temperature and voltage-drop, the existing early warning (external) methods are summarized. On this basis, the development idea of early warning (external) of battery thermal runaway in the future is proposed, which provides ideas for early monitoring and early warning of thermal runaway of lithium battery.

Key words: lithium-ion batteries, thermal runaway, thermal runaway characteristic parameters, early warning