电池2025，Vol.55Issue(6)：1312-1318,7.DOI:10.19535/j.1001-1579.2025.06.014
锂离子电池热失控建模及产气行为
Thermal runaway modeling and gas generation behavior of Li-ion battery
摘要
Abstract
Focusing on the thermal runaway behavior triggered by convective heat transfer,the multidimensional evolution characteristics of thermal-electrical-gas is reviewed through experiments and finite element simulations.The external heat source temperature affects thermal runaway initiation timing:under 600.15 K heat source,thermal runaway occurs 300 s earlier than at 450.15 K with 47％faster temperature rise rate.Sequential exothermic reactions involving solid electrolyte interphase(SEI)film decomposition and electrode/electrolyte interactions dominate the process,releasing characteristic gases(HF,H2,CH4,CO and CO2).H2 emerges as the earliest detectable gas(29 min pre-runaway),offering early warning potential,HF concentrates in post-runaway stages.A strong temporal correlation exists between voltage collapse(3.65 V to 0 V)and terminal temperature spikes.关键词
锂离子电池/热失控/产气行为/热滥用Key words
Li-ion battery/thermal runaway/gas generation behavior/thermal abuse分类
信息技术与安全科学引用本文复制引用
谭婷,马育林..锂离子电池热失控建模及产气行为[J].电池,2025,55(6):1312-1318,7.基金项目
江苏省重点研发计划项目(BE2021011-4) （BE2021011-4）
