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 (8): 1086-1090.

• • 上一篇    下一篇

半封闭空间内电动自行车锂离子电池热失控研究

荣建忠1, 吕银华2, 张林志1, 林桑3   

  1. (1. 应急管理部四川消防研究所,四川 成都 610036;2. 杭州银湖安全科技有限公司,浙江 杭州 311402;3. 宁波市消防救援支队,浙江 宁波 315012)
  • 收稿日期:2024-02-26 修回日期:2024-04-04 出版日期:2024-08-19 发布日期:2024-08-15
  • 作者简介:荣建忠(1984- ),男,应急管理部四川消防研究所防火室助理研究员,博士,主要从事消防产品检验、防排烟系统、消防物联网、消防安全管理等方面的研究,四川省成都市金牛区金科南路69号,610036。
  • 基金资助:
    基金项目:应急管理部四川消防研究所基科费研究项目(Z20248806)

Research on thermal runaway of lithium-ion batteries for electric bicycles in semi enclosed spaces

Rong Jianzhong1, Lv Yinhua2, Zhang Linzhi1, Lin Sang3   

  1. (1. Sichuan Fire Science and Technology Research Institute of MEM, Sichuan Chengdu 610036, China;2. Hangzhou Silver Lake Security Technology Co., Ltd., Zhejiang Hangzhou 314402, China;3. Ningbo Fire and Rescue Division, Zhejiang Ningbo 315012, China)
  • Received:2024-02-26 Revised:2024-04-04 Online:2024-08-19 Published:2024-08-15

摘要: 制作了阻燃防护幕布覆盖的鞍座支架模型,基于ISO 9705试验平台,搭建了电动自行车热失控装置,研究了电动自行车20 Ah/48 V磷酸铁锂电池、35 Ah/60 V三元锂电池在197.0 L半封闭空间内的热失控特性。结果表明,在试验条件下,磷酸铁锂电池热释放速率峰值为151.40 kW,泄压口外侧30 cm处测得的火焰温度最高,为597.5 ℃;三元锂电池的热释放速率峰值可达0.86 MW,泄压口外侧30 cm处测得的火焰温度最高,为630.3 ℃。

关键词: 锂离子电池, 半封闭空间, 热失控, 电动自行车, 热释放速率峰值

Abstract: This article presents a saddle bracket model covered with flame-retardant protective curtains, based on the ISO 9705 test platform, a thermal runaway device for electric bicycles was constructed. The thermal runaway characteristics of 20 Ah/48 V LFP battery and 35 Ah/60 V NCM battery for electric bicycles were studied in a semi enclosed space of 197.0 L. The results showed that under experimental conditions, the peak heat release rate of LFP batteries battery was 151.40 kW, and the highest flame temperature measured at 30 cm outside the pressure relief port was 597.5 ℃; The peak heat release rate of NCM battery can reach 0.86 MW, and the highest flame temperature measured at 30 cm outside the pressure relief port is 630.3 ℃.

Key words: lithium-ion batteries, semi?enclosed spaces, thermal runaway, electric bicycles, the peak heat release rate