Abstract：To solve the problem of high temperature for lithium-ion battery during high rate discharge, a new type of cold plate was designed based on mini-channel, and the computational fluid dynamics (CFD) was used to simulate the cooling effects of battery module. The cooling properties of cold plates with different channel types were compared to select the channel type with better temperature performance and the effects of inlet mass flow of coolant and channel structure parameters were analyzed based on the optimized channel type. The results show that the channel combined in series and parallel has good performance, which can lower the temperature of battery module and improve the temperature uniformity with reduced coolant pressure drop. The increasing of coolant mass flow rate can improve the cooling effect, which slows down gradually. The increasing of channel width can reduce the average temperature of battery module and improve temperature uniformity, and the maximum temperature is decreased with latter slight increasing. With the increasing of channel height, the coolant flow rate is decreased, and the maximum battery temperature and the temperature difference are increased.
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2021, Vol. 42 
