Based on the research for thermal management of air-cooled energy storage battery pack,a novel"harmonica plate"thermal management system is developed for air-cooled energy storage battery pack.The influences of natural convection,inlet air speed and ambient temperature on temperature contour and flow field distribution of thermal management system are studied under different discharge rates.Study results show that the maximum temperature of the battery pack is 42.26℃and the maximum temperature difference is 3.2℃when the discharge rate is 1.5 C,the inlet air speed is 10 m·s-1 and the ambient temperature is 25℃.In addition,the"harmonica plate"can effectively improve the uniformity of internal temperature distribution of energy storage battery pack,significantly reduce the maximum temperature of the battery pack.This study can provide relevant basic theoretical and experimental data support for the development and optimization of air-cooled thermal management system for large-capacity square energy storage battery packs.
air cooledharmonica plateenergy storage battery packconvective heat transferthermal management