Advances in New and Renewable Energy >
Numerical Simulation Investigation on the Heat Dissipation Performance of High Power Li-on Battery Pack
Received date: 2014-09-18
Revised date: 2014-10-08
Online published: 2014-12-30
Lithium ion battery has broad application prospect in EVs (Electric Vehicles) and HEVs (Hybrid Electric Vehicles) because of its high energy density and power density. The heat dissipation performance of high power LiFePO4 battery pack (4 × 6) based on unidirectional/reciprocating air flowing was investigated through 3D numerical simulation methods. The results showed that when the heat generation between the anode and the cathode was inhomogeneous, it was necessary to arrange anodes and cathodes crosswise in order to reduce local temperature difference of the battery pack. With the increase of entrance air speed, the effect of angle size on the heat dissipation performance of battery pack enlarged. When the period was long, reciprocating ventilation was not conducive to reducing the local temperature difference of the battery pack, even increased the local temperature difference to the contrary for a long time.
ZHAO Jia-teng , RAO Zhong-hao , LIU Xin-jian , LIU Chen-zhen , HUO Yu-tao , WANG Qing-chao . Numerical Simulation Investigation on the Heat Dissipation Performance of High Power Li-on Battery Pack[J]. Advances in New and Renewable Energy, 2014 , 2(6) : 471 -475 . DOI: 10.3969/j.issn.2095-560X.2014.06.010
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