Advanced thermal management system of Lithium-Ion Batteries: Integrating thermoelectric modules with phase change materials

Abstract

This study investigates an innovative approach to lithium-ion battery thermal management using thermoelectric (TEC) modules and phase change materials (PCMs). The system incorporates battery enclosures filled with PCMs to stabilize temperature fluctuations. These enclosures are immersed in a water reservoir where the heat from the batteries is absorbed by the PCMs, which subsequently transfer heat to the surrounding water. A TEC cooling system then cools the water, completing the heat dissipation cycle. Experimental results show that this integrated system effectively reduces battery temperatures, achieving temperature reductions of approximately 12% for 50-watt, 9% for 30-watt, and 14% for 10-watt battery modes compared to natural convection methods. This approach not only enhances battery performance but also proves suitable for applications requiring compact and efficient thermal management solutions, such as electric vehicles.

Keywords

• Battery thermal management
• Lithium-ion battery
• Thermoelectric
• Electric vehicles