一起刀片电池因撞击受潮起火事故的调查  

Investigation of a blade battery fire caused by impingement and damp

作　　者：黄文晓 HUANG Wen-xiao(Haikou Fire and Rescue Division,Hainan Haikou 570203,China)

机构地区：[1]海口市消防救援支队,海南海口570203

出　　处：《消防科学与技术》2022年第6期869-872,共4页Fire Science and Technology

摘　　要：分析一起新能源车因底盘受撞击、受潮,使所装载的刀片电池遭到破坏起火的事故的调查过程。通过监控视频、现场勘验等证据确定起火部位、起火点,结合电气故障、锂离子电池热失控理论知识、车辆远程监控数据、相关人员描述等综合情况认定火灾事故原因。通过现场实验深入分析电池包下护板撞击孔洞和电池包塑料盖板裂口的形成原因,并根据电气理论知识分析刀片电池存在问题并提出改进质量的建议。This paper analyzed the accident investigation process of a blade battery damaged by impingement and then caught fire due to moisture. The location of the fire was determined through video analysis, on-site investigation. The fire cause was identified by the theoretical knowledge of electrical faults, thermal runaway of lithium-ion batteries, remote monitoring data, personnel description and other evidence. The field experiment was used to analyze the formation of the impact hole on the lower guard plate and the hole on the cover plate. Combined with the knowledge of electrical theory, problems of the blade battery were analyzed, and some suggestions were put forward to improve its quality.

关 键 词：新能源车 刀片电池 撞击受潮 火灾调查 

分 类 号：X928.7[环境科学与工程—安全科学] TM912[电气工程—电力电子与电力传动]