TY - GEN
T1 - Analysis of Factors Influencing the Bottom Impact Safety Performance of Power Battery Systems
AU - Yan, Pengfei
AU - Ma, Tianyi
AU - Wang, Fang
AU - Gao, Yan
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.
PY - 2025
Y1 - 2025
N2 - In recent years, safety concerns regarding the bottom of new energy vehicles, particularly the traction battery system, have escalated due to potential severe safety incidents such as fires, owing to collisions and impacts from road obstacles. This study employed simulation methods to analyze the impact of road obstacles on the traction battery system and investigated how impact energy influences its structural safety. In this study, it was observed that battery pack bottom plates of different materials exhibited varying capacities, resisting foreign object impacts. Results indicated that an impact energy of 150 J was equivalent to a 10 kg foreign object colliding with the bottom of the battery pack at a speed of ~20 km/h. Furthermore, as the impact energy increased, battery cells were prone to compression damage. Additionally, under similar conditions, the impact resistance of aluminum plates significantly lagged behind that of steel substrates within battery systems. The study analyzed the bottom impact safety performance of traction battery systems under different damage factors, offering crucial reference and data support for the design of reasonable bottom impact resistance performance goals for new energy vehicle traction battery systems.
AB - In recent years, safety concerns regarding the bottom of new energy vehicles, particularly the traction battery system, have escalated due to potential severe safety incidents such as fires, owing to collisions and impacts from road obstacles. This study employed simulation methods to analyze the impact of road obstacles on the traction battery system and investigated how impact energy influences its structural safety. In this study, it was observed that battery pack bottom plates of different materials exhibited varying capacities, resisting foreign object impacts. Results indicated that an impact energy of 150 J was equivalent to a 10 kg foreign object colliding with the bottom of the battery pack at a speed of ~20 km/h. Furthermore, as the impact energy increased, battery cells were prone to compression damage. Additionally, under similar conditions, the impact resistance of aluminum plates significantly lagged behind that of steel substrates within battery systems. The study analyzed the bottom impact safety performance of traction battery systems under different damage factors, offering crucial reference and data support for the design of reasonable bottom impact resistance performance goals for new energy vehicle traction battery systems.
KW - Bottom safety
KW - Damage factor
KW - Impact capability
KW - New energy vehicles
UR - http://www.scopus.com/inward/record.url?scp=85208191060&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-73407-6_1
DO - 10.1007/978-3-031-73407-6_1
M3 - Conference contribution
AN - SCOPUS:85208191060
SN - 9783031734069
T3 - Mechanisms and Machine Science
SP - 1
EP - 15
BT - Proceedings of the TEPEN International Workshop on Fault Diagnostic and Prognostic - TEPEN2024-IWFDP
A2 - Wang, Zuolu
A2 - Zhang, Kai
A2 - Feng, Ke
A2 - Xu, Yuandong
A2 - Yang, Wenxian
PB - Springer Science and Business Media B.V.
T2 - TEPEN International Workshop on Fault Diagnostics and Prognostics, TEPEN-IWFDP 2024
Y2 - 8 May 2024 through 11 May 2024
ER -