储能科学与技术2025，Vol.14Issue(1)：140-151,12.DOI:10.19799/j.cnki.2095-4239.2024.0651
复合水系灭火剂抑制磷酸铁锂电池火灾实验
Fire suppression experiment of lithium iron phosphate battery with composite water extinguishing agent
摘要
Abstract
In order to explore the suppression effect of composite water extinguishing agents on lithium-ion battery fires,fire extinguishing experiments were conducted using water-soluble salts and surfactants at varying concentrations of a single component.Based on the results,four complex solutions(CS)were synthesized.The study focused on the surface tension and pyrolysis characteristics of fire extinguishing agents to determine the mechanism behind fire suppression.Simultaneously,various experiments were conducted to investigate characteristics of fine water mist parameters in extinguishing lithium-ion battery fires,focusing on the impact of working pressure and atomization cone angle on the effect of fire suppression.The results showed that applying four compound extinguishing agents can effectively inhibit the thermal runaway propagation of lithium-ion batteries.The results of the comprehensive evaluation of various extinguishing parameters and the effectiveness of extinguishing agents indicated that the CS-4 extinguishing agent,which is formulated with 0.15%FC-4(nonafluorobutanesulfonyl fluoride),1%APG0810(alkyl glucoside),0.32%CH4N2O(urea),and 2%NaHCO3(sodium bicarbonate),demonstrated an outstanding comprehensive extinguishing effect.High-pressure fine water mist had a stronger flame suppression ability,whereas the flame under low-pressure fine water mist appeared to be intensified after being initially suppressed.The fire suppression efficiency of the fire extinguishing agent showed a V-shaped trend with the increase of water mist atomization cone angle,and the best effect was achieved when the atomization cone angle was 60°.The comprehensive research on the characteristic parameters of composite water extinguishing agents and water mist extinguishing systems can provide references for developing fire control strategies and extinguishing agents for lithium-ion battery fires and the safety protection of lithium battery energy storage power stations.关键词
锂离子电池/高效灭火剂/灭火有效性/灭火机理/细水雾Key words
lithium-ion battery/high efficiency extinguishing agent/fire fighting effectiveness/fire extinguishing mechanism/water mist分类
资源环境引用本文复制引用
李可,朱顺兵,陶致格,王赫..复合水系灭火剂抑制磷酸铁锂电池火灾实验[J].储能科学与技术,2025,14(1):140-151,12.基金项目
国家自然科学基金面上项目(51876088),江苏省高等学校自然科学基础研究重大项目(17KJA620004). （51876088）
