A Review of Thermal Performance of Liquid Cold Plates of Li-Ion Battery by Computational Fluid Dynamics Approach

Abstract

Lithium-ion battery temperature management and analysis are critical for use in electric vehicles. In this study, a liquid cooling design is used to study the thermal behavior of a lithium-ion battery. Battery modules with cold-plate cooling and immersion cooling are contrasted in terms of maximum cell temperature, temperature gradient, the temperature difference between cells, and pressure drop. Each cooling strategy is studied to identify how it impacts the systems as a whole. The entire numerical analysis is performed using Computational Fluid Dynamics (3D time accurate) (CFD). The module's temperature varies widely because of the module's poor thermal properties and high rate of heat rejection. The reduced density and viscosity of the dielectric liquid in an immersion-cooled battery module also contribute to the improved performance.