福州大学学报（自然科学版）2026，Vol.54Issue(1)：25-31,7.DOI:10.7631/issn.1000-2243.25005
车用三元锂电池的面外挤压响应特性仿真及失效分析
Out-of-plane compression response simulation and failure analysis of automotive ternary lithium-ion batteries
摘要
Abstract
To investigate the internal short circuit failure of automotive ternary lithium-ion batteries under mechanical abuse,this study combines experimental and simulation methods to analyze out-of-plane compression response characteristics of batteries.Initially,quasi-static loading experiments were conducted on both batteries and jellyrolls,and failure process analyzed through experimental observa-tions and loading-displacement curves.Subsequently,key failure parameters were determined via parameter optimization,enabling the establishment of a finite element model coupling battery's shell and jellyroll.Results demonstrate that the proposed model accurately captures the mechanical behavior under compression,achieving prediction accuracies of 92.8%for short-circuit failure displacement and 96.4%for failure load.Furthermore,by comparing the deformation responses under different compres-sion conditions,the correlation between mechanical abuse and internal short circuit failure was revealed.The research provides theoretical basis for failure assessments of lithium-ion batteries.关键词
三元锂电池/挤压响应特性/内短路失效/机械滥用Key words
ternary lithium-ion battery/compression response characteristics/shot circuit failure/mechanical abuse分类
交通工程引用本文复制引用
黎衍,刘亚铭,于潇雁,姚立纲..车用三元锂电池的面外挤压响应特性仿真及失效分析[J].福州大学学报（自然科学版）,2026,54(1):25-31,7.基金项目
科技部国家重点研发计划资助项目(2022YFB4702401) （2022YFB4702401）
