用户侧电化学储能系统新型灭火剂研发与应用

Research and Application of New Extinguishing Agent for Electrochemical Energy Storage System at User Side

用户侧储能系统直接面向生产、医疗和社区等用户,储能安全运行是重中之重。因缺乏针对锂离子电池的专用灭火剂,储能系统的发展受到约束。在锂离子热失控机理分析基础上,搭建了适用于锂离子火灾灭火测试的平台,对现有灭火剂的优劣势进行了分析,以全氟己酮为核心,搭配降温剂和防腐材料开发出了一种锂离子电池专用灭火剂。实验结果表明,该灭火剂具有10 s扑灭明火能力,并实现电池降到室温时间小于15 s,72 h无复燃。进一步对开发的新型灭火剂进行绝缘实验测试,该灭火剂对金属无腐蚀性,并且浸泡下电子器件能够正常运行。研究结果能够为锂离子电池储能系统的消防安全提供有效的试验支撑和安全保障。

The user side energy storage system is directly facing the users of production,medical treatment and community so the safe operation of energy storage is the focus of attention.The development of energy storage system is restricted due to the lack of special fire extinguishing agent for lithium-ion batteries.Therefore,based on the analysis of the mechanism of lithium ion thermal runaway,a test platform suitable for lithium ion fire extinguishing was built,and the advantages and disadvantages of the existing fire extinguishing agent were analyzed.A special fire extinguishing agent for lithium ion battery was developed with perfluorohexanone as the core,cooling agent and anti-corrosion materials as the collocation.The experimental results show that the fire extinguishing agent has the ability to extinguish open fire in 10 seconds,and the time for the battery to drop to room temperature is less than 15 seconds,and there is no reburning in 72 hours.Furthermore,the insulation test of the developed new fire extinguishing agent shows that the fire extinguishing agent is non corrosive to metal,and the electronic devices can operate normally under immersion.The research results can provide effective test support and security for the fire safety of lithium-ion battery energy storage system.