4.8 Article

Revealing the internal short circuit mechanisms in lithium-ion batteries upon dynamic loading based on multiphysics simulation

期刊

APPLIED ENERGY
卷 351, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2023.121790

关键词

Lithium-ion battery; Drop-weight test; Internal short circuit; Multi-physics modeling; Thermal runaway

向作者/读者索取更多资源

In this study, a coupled multi-physics model is established to describe the mechanical, electrical, and thermal response of lithium-ion batteries (LIBs) under dynamic loading. Four internal short circuit (ISC) modes are revealed through disassembling the LIBs after dynamic loading, and a strain-based ISC criterion is proposed. The mechanical-electrical-thermal behavior of LIBs in quasi-static and dynamic loading is compared and analyzed. The triggering impact energy of four ISC modes for LIBs with different SOCs is concluded.
Internal short circuit (ISC) of lithium-ion batteries (LIBs) would be triggered due. to inevitable electric vehicle collision, which pose serious threats to the safety and stability of the battery system. However, there is a lack of research on the ISC mechanism of LIBs under dynamic impact loadings. In this work, a coupled multi-physics model to describe the mechanical, electrical, and thermal response of LIBs under dynamic loading is established. The model can well predict the ISC and thermal runaway evolution process of LIBs with various SOCs under different impact energies. Four ISC modes are revealed through disassembling the LIBs after dynamic loading. Further, a strain-based ISC criterion is proposed to describe the triggering and voltage drop characteristics of each ISC mode. Subsequently, the mechanical-electrical-thermal behavior of LIBs in quasi-static and dynamic loading is compared and analyzed. Afterward, the triggering impact energy of four ISC modes for LIBs with different SOCs is concluded. The model proposed in this paper is currently based on small-sized batteries, and further study is required to extend its application to large-sized batteries.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据