Thermal Management of Lithium-ion Battery based on Flow and Heat Transfer Entropy Generation Analysis

Abstract

In order to realize the problem of efficient heat dissipation management of lithium battery modules, the thermal management model of liquid cooled lithium-ion battery modules is studied in this paper. The entropy increase characteristics caused by the flow process and heat transfer process of the lithium-ion battery module under three liquid cooling inlet and outlet modes are analyzed by numerical simulation, and the internal mechanism of the local entropy generation characteristics of the lithium-ion battery module is clarified. The numerical results show that the 3×3 MIMO is the best model considering the heat dissipation and fluidity of the protective fluid. In addition, the results of this study can provide effective design guidance for thermal management of lithium-ion batteries.