Internal short circuit simulation analysis based on electrochemical-thermal coupling model

Tao Liu; Mian Yang; Jingru Liu; Nengsen Shi; Mei Zhang; Wei Shi

doi:10.1117/12.3054443

20 January 2025 Internal short circuit simulation analysis based on electrochemical-thermal coupling model

Tao Liu, Mian Yang, Jingru Liu, Nengsen Shi, Mei Zhang, Wei Shi

Author Affiliations +

Proceedings Volume 13515, Fourth International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024); 135150P (2025) https://doi.org/10.1117/12.3054443
Event: 4th International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024), 2024, Chongqing, China

Abstract

At present, the key reason that restricts the commercialization of power batteries lies in their safety issues. Among them, the uncontrollable growth of lithium dendrites will penetrate the separator during the cycle process, resulting in a short circuit or even thermal runaway in the battery, and it is difficult to monitor the internal characteristics of the battery after the occurrence of internal short circuit. In this paper, the electrochemical-thermal coupling model of ternary pouch lithium-ion battery is established in finite element software, and the internal short circuit setting caused by lithium dendrites is added to analyze the characteristics of batteries after internal short circuits at different positions, different starting SOCs, and different lithium dendrite radii. The results show that the larger the radius of lithium dendrites, the stronger the inhomogeneity of the internal temperature of the battery at the same time after the occurrence of the internal short circuit, and the greater the peak value of the battery temperature. The temperature uniformity of the internal short circuit occurring in the center position is better, and the peak temperature reaches is slightly lower due to the good heat dissipation conditions; the rate of battery temperature increase and the peak value reached are positively correlated with the initial SOC of the battery.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tao Liu, Mian Yang, Jingru Liu, Nengsen Shi, Mei Zhang, and Wei Shi "Internal short circuit simulation analysis based on electrochemical-thermal coupling model", Proc. SPIE 13515, Fourth International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2024), 135150P (20 January 2025); https://doi.org/10.1117/12.3054443

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE