A J-Type Air-Cooled Battery Thermal Management System Design and Optimization Based on the Electro-Thermal Coupled Model

Air-cooled battery thermal management system (BTMS) is a widely adopted temperature control strategy for lithium-ion batteries. However, pack with this type of BTMS typically suffers from high temperatures and large differences (∆T). To address issue, study conducted an electro-thermal coupled model to optimize the flow channel structure reducing maximum (Tmax) ∆T in “J-type” air-cooled BTMS. The parameters required predict heat generation were obtained single testing experiment. transfer that had 24 18650 batteries was established by Computational Fluid Dynamics software ANSYS Fluent 2020R2. simulation results validated measurement Using proposed model, parameter analysis has been implemented. optimized terms duct size, spacing, arrangement original reduce Tmax 1.57 K 0.80 K, respectively. This may provide valuable reference designing