Analysis of lithium-ion battery thermal management system adapting ethylene glycol coolant Available to Purchase

When lithium-ion battery is operating under high charge and discharge rates, there will be a rapid rise in the temperature of the battery. This high temperature of the battery will cause safety issues like thermal runaway and also will reduce the efficiency of the battery. In order to maintain the temperature of the battery within permissible limit, it is important to adopt thermal management system for batteries. There are several thermal management systems like air cooling, liquid cooling etc. But compared to all existing systems, liquid cooling system has greater efficiency in cooling the battery. In liquid cooling system, selecting right kind of coolant is important in order to cool the battery efficiently. In this paper, liquid cooling system of lithium ion battery is designed using “COMSOL Multiphysics Software" and simulated with two most commonly used coolants which are water and water-Glycol using “CFD ANALYSIS" in “ANSYS” and their heat transfer rates are calculated.