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

消防科学与技术 ›› 2023, Vol. 42 ›› Issue (5): 681-685.

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不同压力细水雾抑制三元锂离子电池热失控效果试验研究

张军1, 王子阳2,4, 陆睿哲3, 姚斌4   

  1. （1. 合肥市消防救援支队，安徽 合肥 230001；2. 合肥科大立安安全技术有限责任公司，安徽 合肥 230088；3. 安徽省消防救援总队，安徽 合肥 230000；4. 中国科学技术大学 火灾科学国家重点实验室，安徽 合肥 230026）
  • 出版日期:2023-05-15 发布日期:2023-05-15
  • 作者简介:张 军（1972— ），男，安徽舒城人，合肥市消防救援支队高级工程师，博士，主要从事消防监督管理工作，安徽省合肥市蜀山区习友路与科学大道交口，230001。

Experimental study on inhibition effect of different pressure water mist on thermal runaway of ternary lithium-ion battery

Zhang Jun1, Wang Ziyang2,4, Lu Ruizhe3, Yao Bin4   

  1. (1. Hefei Fire and Rescue Division, Anhui Hefei 230001, China; 2. Hefei Keda Li'an Safety Technology Co., Ltd., Anhui Hefei 230088, China; 3. Anhui General Fire and Rescue Brigade, Anhui Hefei 230000, China;4. State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui Hefei 230026, China)
  • Online:2023-05-15 Published:2023-05-15

摘要： 为探究瓶组式细水雾灭火装置在存储和使用过程中的压力变化对150 Ah大容量三元锂离子电池热失控抑制效果的影响，搭建了锂离子电池燃烧抑制试验平台，开展了锂离子电池热失控抑制试验。结果表明：试验条件下，细水雾压力越大抑制热失控所需时间越短；1.2 MPa细水雾扑灭锂离子电池明火后存在复燃现象；在成功扑灭锂离子电池热失控明火的条件下，10 MPa细水雾耗水量最少；压力衰减会降低瓶组式细水雾的灭火效果。试验可以为细水雾灭火装置抑制大容量三元锂离子电池热失控的系统选型和运行维护提供参考。

关键词: 锂离子电池, 热失控, 细水雾, 压力, 降温效率

Abstract: In order to explore the influence of pressure change on thermal runaway suppression effect of 150 Ah large capacity ternary lithium-ion battery during storage and use of bottle group fine water mist fire extinguishing device, a combustion suppression experiment platform was built and thermal runaway suppression experiment for lithium-ion battery was carried out. The results show that under the experimental conditions in this paper, the greater the water mist pressure, the shorter the time needed to restrain thermal runaway. There is reignition phenomenon after 1.2 MPa fine water mist extinguishes lithium-ion battery open flame. Under the condition of successfully extinguishing lithium-ion battery thermal runaway open flame, 10 MPa fine water mist consumes the least amount of water. Pressure attenuation will reduce the extinguishing effect of bottle group water mist. This experiment can provide reference for system selection, operation and maintenance of fine water mist extinguishing device to suppress thermal runaway of large capacity ternary lithium-ion battery.

Key words: lithium-ion battery, thermal runaway, water mist, pressure, cooling efficiency