锂离子电池健康状态与火灾安全研究  

Research on Health Status and Fire Safety of Lithium-ion Batteries

作　　者：林彭勇 LIN Pengyong(Xiamen King Long United Automotive Industry Co.,Ltd.,Xiamen 361023,China;Key Laboratory of Bus Safety and Power-saving Technology Enterprises of Fujian Province,Xiamen 361023,China)

机构地区：[1]厦门金龙联合汽车工业有限公司,福建厦门361023 [2]福建省客车安全与节能技术企业重点实验室,福建厦门361023

出　　处：《客车技术与研究》2025年第2期6-9,共4页Bus & Coach Technology and Research

摘　　要：随着锂离子电池使用时间的延长,电池单体的健康状态出现不同程度的退化,导致单体性能不一致,甚至可能引发内部短路导致热失控。本文基于对事故过程和后台数据的分析,研究电池健康状态与热失控之间的关系,提出实现锂离子电池热失控预警的有效方法。With lithium-ion batteriesusage time extending,the health status of individual cells undergoes varying degrees of degeneracy.This results in performance inconsistency among the cells,leading to internal short circuits and thermal runaway.This paper analyzes based on the accident process and backend data,investigates the relationship between batterieshealth status and thermal runaways,and proposes effective methods for early warning of lithium-ion batteriesthermal runaways.

关 键 词：电动汽车 动力电池 健康状态 火灾安全 

分 类 号：U461.91[机械工程—车辆工程] TM912[交通运输工程—载运工具运用工程]