E3S Web Conf.
Volume 248, 20212021 3rd International Conference on Civil Architecture and Energy Science (CAES 2021)
|Number of page(s)||6|
|Section||Chemical Performance Structure Research and Environmental Pollution Control|
|Published online||12 April 2021|
Simulation study of local thermal runaway of 18650 lithium battery module under multi-point thermal trigger
1 School of Mechanical and Automotive Engineering, South China University of Technology, Tianhe, Guangzhou, Guangdong, China
2 School of Mechanical Engineering, Guangzhou College of South China University of Technology, Huadu, Guangzhou, Guangdong, China
The thermal runaway of lithium power battery is the key problem of battery safety, according to the standard SAE J2464–2009 single point heating key position, the proposed multi-point trigger based thermal runaway of lithium power battery module simulation method and battery module thermal runaway battery monomer ratio PN, thermal runaway trigger time tn two indicators, the thermal runaway rule of 18650 lithium power battery module under different trigger position, trigger points. The results show that considering the external thermal insulation conditions of the power lithium battery module, the geometric angular position in the module is the most dangerous position, and the number of thermal trigger points is positively correlated with PN.
© The Authors, published by EDP Sciences, 2021
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