Effect of Thermal Parameters on Behaviour of A Lithium-Ion Battery: Simulation Study

Lithium-Ion battery temperature should maintain within a specific range during charging and discharging processes to ensure the higher performance of the battery, longer life of the battery, and safety of use. Accordingly, a battery cooling system is required. In general, generated heat through chemical reactions within the battery is the main source of battery temperature increment. The generated heat which spreads throughout the battery components and surface is affected by many factors such as the ambient temperature, the type of materials used, and the design dimensions. Hence, there is more than one methodology to control the temperature of the battery. These methods include the use of cooling systems, controlling the design dimensions, and using various types of materials for battery components. The main core of this article is to establish a simulation program implemented by Finite Element Method (FEM) to examine the impact of variation of some operating and thermal factors on the battery thermal operation. These parameters are ambient temperature (255.4, 277.6, 299.9, 322.1, 344.3 K), discharge/charge rates (0.5C, 1C, 1.5C, 2C). Heat transfer coefficient, thermal conductivity, density, and heat capacity are some of the thermal attributes of the employed material.