簇或舱级释放全氟己酮对磷酸铁锂电池的灭火效果  

Suppression effect of perfluoro (2-methyl-3-pentanone) fire extinguishing agent released in cluster and cabin on lithium iron phosphate battery module fire

作　　者：赵光金 胡玉霞 李博文 秦艺 朱振杰 鲁红飞 金阳 ZHAO Guangjin;HU Yuxia;LI Bowen;QIN Yi;ZHU Zhenjie;LU Hongfei;JIN Yang(Research Institute,State Grid Henan Electric Power Co.,Ltd.,Zhengzhou 450000,China;Research Center of Grid Energy Storage and Battery Application School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]国网河南省电力公司电力科学研究院,郑州450000 [2]郑州大学电气与信息工程学院电网储能与电池应用研究中心,郑州450001

出　　处：《安全与环境学报》2023年第12期4263-4270,共8页Journal of Safety and Environment

基　　金：国网河南省电力公司科技项目(521702200005)。

摘　　要：储能电站中灭火系统的有效性越来越受到重视,但全氟己酮局部和空间布置方式对灭火有效性的影响缺乏研究。以磷酸铁锂电池模组为试验对象,搭建舱级试验平台,采用1 C充电倍率对电池模组过充至热失控进而着火,并实施无灭火措施、全氟己酮灭火剂局部释放和舱级释放以对火灾进行抑制。分析气体及温度数据,对比簇级和舱级释放下全氟己酮对磷酸锂铁电池模组火灾的抑制效果并提出高效的灭火剂释放策略。结果显示:簇级释放4 s内扑灭明火,降温速率达1.37℃/s;舱级释放46 s内扑灭明火,降温速率为0.81℃/s;簇级灭火速率比舱级灭火速率快且2者均能防止复燃。采取簇级和舱级释放相结合的灭火方式具备最佳火灾抑制效果。More and more attention has been paid to the effectiveness of fire extinguishing systems in energy storage power stations.However,few studies have been reported on the effect of the local and entire arrangement of perfluoro(2-methyl-3-pentanone) on fire extinguishing.In this paper,the notion of cabin release and cabin release were defined and an energy storage cabin test platform was built.The lithium iron phosphate battery module was taken as the test object which was overcharged by 1C rate constant current until thermal runaway happened.The test battery module caught fire later.Experiments were conducted to compare the fire suppression performance of no measures,cluster releasing and cabin releasing of perfluoro(2-methyl-3-pentanone) extinguishing agents.The results showed that the flame was put out within 4 seconds of cluster level release,and the cooling rate reached 1.37 ℃/s.The fire was extinguished within 46 seconds of the cabin releasing,and the cooling rate was 0.81 ℃/s.H_(2) and CO volume fractions descended back to the level before the test within 4 minutes.Cluster fire extinguishing was much more efficient than cabin fire extinguishing while they both prevented reignition.Consumption of perfluoro(2-methyl-3-pentanone) was different between cluster and cabin release.It showed that 35.96 kg perfluoro(2-methyl-3-pentanone) enabled to suppress of the fire of 960 Wh lithium iron phosphate battery module under cluster level release,while 91.2 kg perfluoro(2-methyl-3-pentanone) suppressed the fire of 576 Wh lithium iron phosphate battery module under cabin level release.Also,the layout of the perfluoro(2-methyl-3-pentanone) extinguishing agent affected the fire suppression effect.There was a larger range of effecting space of cabin release because it bypassed the obstacle to suppress the fire of the hidden module.Taking practical application into consideration,this paper put forward an efficient fire extinguishing agent release strategy.The combination of cluster-level release and cabin-level release had

关 键 词：安全工程 全氟己酮 磷酸铁锂电池 火灾抑制 簇级 舱级 

分 类 号：X932[环境科学与工程—安全科学]