Research on the Thermal Management System of BEV LiFePO_4 Battery Pack

Lijian Bian

《International Core Journal of Engineering》 7卷11期 (2021/11) Pp. 270-274

https://doi.org/10.6919/ICJE.202111_7(11).0042

摘要

In order to effectively improve the working characteristics of the power battery of BEV, this paper conducts a thermodynamic analysis on the LiFePO4 battery pack, The changes of internal resistance under different discharge rates and ambient temperatures were measured. Three-dimensional thermal effect model of the battery was established, and the thermoelectric coupling simulation analysis was carried out, Compare the simulation results with the experimental results to verify the effectiveness of the model, and analyze the influence of the air inlet angle on the temperature distribution of the battery pack, and optimize the heat dissipation structure. By studying the influence of air flow and its temperature on the temperature distribution of the battery pack, the heat dissipation structure is optimized to achieve the best performance of the battery pack structure.

關鍵字

LiFePO_4 battery ； discharge rates ； thermoelectric coupling simulation ； heat dissipation structure

參考文獻

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