TOWARDS THE IMPLEMENTATION OF LOOP HEAT PIPES IN AUTOMOTIVE BATTERY THERMAL MANAGEMENT SYSTEMS

This paper presents the results of a series of investigations aimed to aid the implementation of a battery thermal management system for electric vehicles based on loop heat pipes. The LHPs can passively transfer heat from the battery pack to a remote chiller, without consuming parasitic power. Experiments demonstrate that the proposed solution can enable fast 3C charging and maintain satisfactory battery temperatures from -20°C to 50°C ambient. Compared to passive air cooling, the system reduces peak temperatures during fast charging by 7.9°C and more than doubles battery lifetime. The results highlight the potential of passive two-phase heat transfer for automotive thermal management.