摘要
锂离子电池热值高、燃烧和蔓延速度快,有复燃和爆炸风险,尤其是其自内向外的燃烧方式使得灭火剂无法进入电池内部,导致现有灭火手段效率低,甚至无效。对适用于锂离子电池火灾的控火毯性能需求和产业现状展开研究,通过模拟锂电池火灾试验,对控火毯可能的候选材料、织物形态、有机涂层进行了系统性研究,并开展了防火、隔热和强度、抗爆试验。为了满足控火毯防火、隔热和抗爆性能要求,提出了一种由玻璃纤维织物-陶瓷纤维内衬-玻璃纤维织物组成的3层结构,为技术研究人员开发出更有效的控火毯提供技术支持。
Lithium‑ion batteries have high calorific value,fast combustion and propagation speed,and there is a risk of reignition and explosion.Especially,their combustion mode from the inside out prevents the fire extinguishing agent from entering the interior of the battery,resulting in low efficiency and even ineffectiveness of existing fire extinguishing methods.Research was conducted on the performance requirements and industry status of fire control blankets suitable for lithium‑ion battery fires.Through simulated lithium battery fire tests,a systematic study was conducted on potential candidate materials,fabric morphology,and organic coatings for fire control blankets.Fire prevention,insulation,strength,and explosion resistance tests were also conducted.In order to meet the requirements of fire prevention,insulation,and explosion resistance of fire control blankets,a three‑layer structure composed of glass fiber fabric,ceramic fiber lining,and glass fiber fabric is proposed,providing technical support for technical researchers to develop more effective fire control blankets.
作者
尚向前
甄海生
Shang Xiangqian;Zhen Haisheng(College of Mechanical Engineering,Hainan University,Hainan Haikou 570228,China)
出处
《消防科学与技术》
CAS
北大核心
2023年第12期1703-1708,共6页
Fire Science and Technology
基金
海南省重点研发计划项目(ZDYF2023GXJS015)。
关键词
锂离子电池火灾
先控制后消灭
控火装置
控火毯
lithium‑ion battery fire
control first and then eliminate
fire‑controlling device
fire control blanket
作者简介
尚向前(1996-),男,山西运城人,海南大学机电工程学院硕士研究生,主要从事火灾科学、火焰与燃烧、新能源等研究,海南省海口市美兰区人民大道海南大学海甸校区,570228;通信作者:甄海生,男,海南大学机电工程学院教授。
