Abstract
This article mainly addresses the technology of improving heat dissipation performance of power battery packs using Phase Change Material (PCM). This new technology aims to reduce the temperature gradient among the battery packs. As the thermal properties of the pure paraffin wax are hard to meet the dissipation demand, changes are made to add graphite particles into it. Commercial CFD software ANSYS FLUENT is used to simulate the heat dissipation process during battery discharge using PCM and traditional forced air cooling methods. The simulation results show that both under constant current and pulse current the maximal temperature and temperature gradient by the end of discharging using PCM method are relatively lower than that of using forced air cooling method.
Publisher
Trans Tech Publications, Ltd.
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