摘要
为了掌握锂离子电池火灾的发生发展规律,制定防控措施和应急管理方案,采用加热片对某60 Ah磷酸铁锂方形单体电池表面加热,考察在无外加火源情况下电池的燃烧特性,记录温度、火焰、烟气等随时间的变化。加热片功率为200、500、750W。试验结果表明:加热功率达到一定程度后,磷酸铁锂方形电池可能出现爆燃和喷射火。加热功率越大,爆燃时间越短;电池的燃烧特性不受电池电压状态的影响,即使电压降为0 V,电池内部材料仍可能发生燃烧。建议加强方形电池应用场所的泄压措施,做好电池安全管理和预警;消防员扑救磷酸铁锂方形电池火灾时佩戴相应个人防护装备,针对火灾特点展开救援。
In order to master the occurrence and development law of lilhium-ion battery fire and to better formulate the fire prevention and control measures and emergency management schemes, the heating plate was used to heat the surface of 60 Ah lithium iron phosphate square cell, the combustion characteristics of the bar tery without external source of fire were investigated. The variations of temperature, flame and smoke with time were recorded. The power of heat plate were 200, 500, 750 W. The test results showed that when the heating power reached a certain level, the square battery of lithium iron phosphate might be deflagrated and hadjel fire. The higher the heating power was, the shorter the deflagration time was. The burning characteristic of the battery was not affected by the voltage state of the battery. Even if the voltage drops to 0 V, the material inside the battery might still be burnt. It was suggested lo strengthen the pressure relief measures in the square battery application site, and make the battery safety management and early warning. Firefighters should put out corresponding personal protective equipment when fighting fire on the lithium iron phosphate square battery, and launched the rescue according to the fire characteristics.
作者
卓萍
倪照鹏
杨凯
阚强
高飞
王康康
ZHUO Ping;NI Zhao-peng;YANG Kai;KAN Qiang;GAO Fei;WANG Kang-kang(Tianjin Fire Research Institute of MEM. Tianjin 300381,China;Natio nal Center for Fire Engineeri ng Tech no logy. Tianjin 300381,China;State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electric Power Research Institute, Beijing 100192, China)
出处
《消防科学与技术》
CAS
北大核心
2019年第2期280-283,共4页
Fire Science and Technology
基金
国家重点研发计划项目(2016YFB0901700)
国家电网公司科技项目"锂离子储能电池组燃烧及爆炸激源解析与防控技术研究"
中央级科研院所基本科研业务费专项资金资助项目(2018SJ21)
关键词
磷酸铁锂
方形电池
受热
火灾
爆燃
lithium iron phosphate
square cell
healing
fire
deflagrate
