江汉大学学报（自然科学版）2025，Vol.53Issue(1)：5-13,9.DOI:10.16389/j.cnki.cn42-1737/n.2025.01.001
高镍三元锂离子电池热失控实验及动力学参数分析
Thermal Runaway Experiment and Kinetic Parameter Analysis of High Nickel Ternary Lithium-ion Battery
摘要
Abstract
Taking the high specific energy 18650 lithium-ion battery as the research object,using adiabatic accelerated calorimetry to carry out thermal runaway experiments on lithium batteries with different SOC,calculating the reaction kinetic parameters during the thermal runaway process,and finally analyzing the destructive nature of the battery thermal runaway.The results showed a risk of thermal runaway when the SOC≥25%,and the larger the SOC,the shorter the trigger time of thermal runaway.The reaction kinetics calculations showed that the activation energy and preexponential factor decreased with increasing SOC.The thermal runaway release energy,TNT equivalent,and damage radius increased with increasing SOC.It indicates that batteries with high SOC are thermally unstable and more prone to thermal runaway.关键词
锂离子电池/荷电状态/热失控/反应动力学/破坏半径Key words
lithium-ion battery/the state of charge/thermal runaway/reaction kinetics/damage radius分类
信息技术与安全科学引用本文复制引用
徐远健,李英东,陈轲鼎,刘潇怡,郑鹏伦,郑云,刘志宏..高镍三元锂离子电池热失控实验及动力学参数分析[J].江汉大学学报（自然科学版）,2025,53(1):5-13,9.基金项目
江汉大学精细爆破国家重点实验室自主课题(PBSKL2022102) （PBSKL2022102）
江汉大学一流学科建设重大研究专项(2023XKZ012) （2023XKZ012）
四川省民机火灾科学与安全工程重点实验室开放课题(MZ2023KF03) （MZ2023KF03）
