江汉大学学报（自然科学版）2025，Vol.53Issue(5)：53-60,8.DOI:10.16389/j.cnki.cn42-1737/n.2025.05.006
隔膜涂层对锂离子电池热失控影响研究
Impact of Separator Coating on Thermal Runaway of Lithium-ion Batteries
摘要
Abstract
In this study,two types of polyethylene(PE)separators coated with ceramic and polyvinylidene fluoride(PVDF)were investigated to assess their surface morphology and thermal stability.These separators were prepared into pouch batteries,and an adiabatic rate calorimeter(ARC)was employed to evaluate the thermal runaway behavior of the bat-teries.The experimental results indicated that the separator coatings effectively delayed the onset of thermal runaway and mitigated the intensity of the thermal runaway reaction in lithi-um-ion batteries.Specifically,the PVDF-coated separator effectively constrained the side reactions in the initial stage of battery thermal runaway,while the ceramic-coated separator demonstrated a superior inhibitory effect in the middle and later stages of battery thermal run-away.Therefore,the coated separators have a significant impact on the thermal runaway be-havior of lithium-ion batteries,with the inorganic ceramic coating being more effective in delaying the onset of thermal runaway.关键词
锂离子电池/隔膜/涂层/热失控/安全性Key words
lithium-ion battery/separator/coating/thermal runaway/safety分类
信息技术与安全科学引用本文复制引用
李英东,陈灵勤,周天健,陈轲鼎,苟斌,杨丽,张薇,刘志宏..隔膜涂层对锂离子电池热失控影响研究[J].江汉大学学报（自然科学版）,2025,53(5):53-60,8.基金项目
江汉大学一流学科建设重大研究专项(2023XKZ012) （2023XKZ012）
江汉大学精细爆破国家重点实验室自主课题(PBSKL2022102) （PBSKL2022102）
东风汽车集团股份有限公司横向课题(ZH2023-143) （ZH2023-143）
