Impact of Battery Pack Shell Materials on Electrical Leakage in Submersion

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Published: May 29, 2025
Keywords:
Battery submersion Battery pack shell materials Electrical leakage Eletrical behavior Finite Element Method

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D.N. Ngo
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
C. Charoenphonphanich
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
N. Kunanusont
National Energy Technology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
P. Meelapchotipong
AMM Research Laboratory, Faculty of Engineering, Thai-Nichi Institute of Technology, Bangkok, 10250, Thailand
C.T. Vo
Faculty of Automotive Engineering Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, 727900, Vietnam
T.S.V. Pham
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
M. Masomtob
National Energy Technology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand

Abstract

This study investigates the impact of battery pack shell materials on electrical leakage when fully submerged in seawater. Both conductive and insulating materials are utilized for battery pack shells. Simulations are conducted using the Finite Element Method (FEM) and are compared with experimental procedure to validate accuracy and reliability. After validation, the simulations are applied to different accident scenarios to analyze potential outcomes. The results revealed that the choice of materials significantly influences electrical leakage, as evidenced by simulations of various scenarios. Moreover, the voltage distribution changed with different battery pack shell states, indicating that the condition of the battery shell significantly impacts electrical leakage. Additionally, solutions for mitigating leakage were implemented and analyzed. Adding highly conductive materials between leaked positions can also reduce the current density in the surrounding areas. These findings are expected to provide valuable data for designing battery pack shells and enhancing the safety of electric vehicles (EVs) in potential accident scenarios.

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How to Cite
Nhat Ngo, D., Charoenphonphanich, C. ., Kunanusont, N. ., Meelapchotipong, P. ., Tan Vo, C. ., Song Vo Pham, T. ., & Masomtob, M. . (2025). Impact of Battery Pack Shell Materials on Electrical Leakage in Submersion. Journal of Research and Applications in Mechanical Engineering, 13(2), JRAME–25. retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/258184
Issue
Vol. 13 No. 2 (2025)
Section
RESEARCH ARTICLES
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