摘要
通过自主搭建的试验平台开展含添加剂的水系灭火剂抑制三元锂离子电池火灾的试验。分别选用不同质量分数表面活性剂、钾盐、微胞囊灭火剂进行含单一添加剂的水系灭火剂灭火试验,在此基础上复配得到3种复合添加剂配方,通过试验研究其对锂离子电池火灾抑制的有效性。结果表明:含复合添加剂的灭火剂的降温速率和灭火能力普遍优于含单一添加剂的灭火剂,且CF-2灭火剂对三元锂离子电池火灾的灭火效果最佳。对CF-2灭火剂配方进行理化性质测试并加入抗冻剂优化,得到优化后的灭火剂配方为CF-4:SDS(1.5%)、尿素(0.34%)、三乙醇胺(0.024%)、K_(2)C_(2)O_(4)(1.2%)、N,N-二甲基甲酰胺(0.6%)、乙二醇(0.3%)、聚丙烯酰胺(0.1%)。试验表明该配方不仅适用于锂电池火灾且在一定条件下可实现工程化应用。
Through the self‑built test platform,the fire suppression test of ternary lithium‑ion battery with water extinguishing agent containing additives was carried out.Different mass fractions of surfactant,potassium salt and microcyst fire extinguishing agent were selected to carry out the fire extinguishing test of aqueous fire extinguishing agent containing a single additive,and on this basis,three composite additive formulations were com‑pounded,and their effectiveness in fire extinguishing of lithium‑ion batteries was studied experimentally.The results show that the cooling rate and flame suppression ability of the fire extinguishing agent containing composite additive are generally better than the fire extinguishing agent containing a single additive,and the CF‑2 fire extinguishing agent has the best fire extinguishing effect on ternary lithium‑ion battery fire.The formula of CF‑2 fire extinguishing agent was tested for physical and chemical properties and antifreeze optimization,and the optimized fire extinguishing agent formula was CF‑4:SDS(1.5%),urea(0.34%),triethanolamine(0.024%),K_(2)C_(2)O_(4)(1.2%),N,N‑dimethylformamide(0.6%),ethylene glycol(0.3%),polyacrylamide(0.1%).Tests have shown that the formulation is not only suitable for lithium battery fire,but can be engineered under certain conditions.
作者
侯双平
朱顺兵
王文豪
Hou Shuangping;Zhu Shunbing;Wang Wenhao(College of Safety Science and Engineering,Nanjing Technology University,Jiangsu Nanjing 211816,China;Institute of Fire Science and Engineering,Nanjing Technology University,Jiangsu Nanjing 211816,China)
出处
《消防科学与技术》
CAS
北大核心
2023年第8期1135-1140,共6页
Fire Science and Technology
基金
江苏省高等学校自然科学研究重大项目(17KJA620004)。
关键词
锂离子电池
热失控火灾
添加剂
水系灭火剂
配方优化
lithium‑ion battery
thermal runaway fire
additive
aqueous fire extinguishing agent
recipe optimization
