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): 722-725.

• • 上一篇    下一篇

三元锂电池电动自行车火灾燃烧特性研究

何学超, 刘振飞, 何瑾   

  1. (应急管理部四川消防研究所,四川 成都 610036)
  • 收稿日期:2024-01-22 修回日期:2024-02-26 出版日期:2024-05-15 发布日期:2024-05-15
  • 作者简介:何学超(1982- ),男,四川宜宾人,应急管理部四川消防研究所,主要从事火蔓延、防烟排烟、新能源火灾、火灾风险评估等方面的研究,四川省成都市金牛区金科南路69号,610036,22821182@qq.com。
  • 基金资助:
    基本科研业务费项目(20218803Z,20238812Z)

Study on combustion characteristics of ternary lithium battery-electric bicycle fires

He Xuechao, Liu Zhenfei, He Jin   

  1. (1.China Automotive Technology and Research Center Co., Ltd.,Tianjin 300300, China; 2. CATARC Automotive Test Center (Tianjin) Co., Ltd., Tianjin 300300, China)
  • Received:2024-01-22 Revised:2024-02-26 Online:2024-05-15 Published:2024-05-15

摘要: 通过对三元锂电池电动自行车开展实体燃烧试验,研究了电动自行车火灾的发展和蔓延过程,分析了燃烧现象、温度及烟气变化等典型特征。试验结果表明,电动自行车火灾发展迅速,燃烧过程中伴随射流火和爆炸现象。在距地面1 m处,测得的火羽流温度最高可达730 ℃,此时对应的最大热释放速率为1 290 kW。通过对烟气毒性进行评估,计算得到有效剂量百分数FED值为1.8,表明在此火灾环境中大约一半人员会因烟气毒气危害而丧生。此外,产生的烟气中还包含大量易燃易爆气体,其中H2含量最高为2 300 μL/L。

关键词: 三元锂电池, 电动自行车火灾, 火蔓延, 烟气毒性

Abstract: The development and spreading process of electric bike fire is studied by carrying out physical combustion test on a ternary lithium battery-electric bicycle,and typical features such as combustion phenomenon, temperature and smoke change are analyzed. The test results show that the e-bike fire develops rapidly, and the combustion process is accompanied by jet fire and explosion phenomena. The fire plume temperature measured at 1 m above the ground could reach up to 730 ℃, which corresponds to a maximum heat release rate of 1 290 kW. By evaluating the toxicity of the smoke, an effective dose percentage (FED) value of 1.8 is calculated, which indicates that about half of the people in this fire environment would be killed due to smoke toxicity hazards. In addition, the generated smoke contains a large amount of flammable and explosive gases, among which H2 content is highest at 2 300 μL/L.

Key words: lithium ternary battery, electric bicycle fire, fire spread, smoke toxicity