摘要
针对纯电动汽车锂离子动力电池存在的一个潜在安全问题,即热失控现象,本文中对某三元锂离子动力电池最为剧烈的一种热失控,即针刺热失控的过程进行研究。通过混合脉冲能力特性实验、热箱加热热失控实验和基于已有模型,搭建了描述针刺热失控过程的集总参数模型,并进行了实验。针刺模型的预测结果得到了针刺实验的证实,这为后续的研究和系统开发奠定了基础。
Aiming at a hidden safety issue, i.e. thermal runaway phenomenon, happening in the Li-ion power battery of pure electric vehicle, the process of one of most violent thermal runaway, i.e. that With nail pene- tration in a NCM Li-ion power battery is studied in this paper. Based on hybrid pulse power characteristic （HPPC） test, oven heating thermal runaway test and existing models, a lumped parameter model describing the process of nail penetration thermal runaway is built with corresponding experiments conducted. The prediction results with the model are validated by experiments. This lays a foundation for subsequent research and system development.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第7期743-750,756,共9页
Automotive Engineering
基金
科技部国际科技合作计划(2011AA11A269)
教育部国际科技合作计划(2012DFA81190)
北京市科技计划与国家支撑计划(Z121100007912001
2013BAG16B01)
清华大学自主科研课题(2011Z01004)资助
关键词
三元锂离子动力电池
针刺热失控
实验
建模
NCM Li-ion power battery
nail penetration thermal runaway
experiments
modeling
