Investigations of Lithium-Ion Battery Thermal Management System with Hybrid PCM/Liquid Cooling Plate

To improve the operating performance of large-capacity battery pack electric vehicles during continuous charging and discharging to avoid its thermal runaway, in this paper we propose a new hybrid management system that couples PCM with liquid cooling plate microchannels. The flow direction microchannel structure bottom is designed according characteristics large axial conductivity battery, whole under charge/discharge cycles numerically simulated. results show PCM/liquid can maintain good discharge process pack. After each cycle temperature be reduced less than 30°, maximum change rate multiple controlled within 0.8%. With application PCM/liquid-cooled system, safe range ensured even discharging. present work facilitate future optimizations vehicles.