However, due to its superior performance, the application of heat pipes in battery thermal management systems is gaining interest from manufacturers and researchers. Battery thermal management systems based on heat pipes can be classified into heat pipe only, heat pipe-air cooling, heat pipe-liquid cooling, and heat pipe-PCM.
The purpose of this study is to understand the suitability of various types of heat pipes for the battery thermal management system of electric vehicles. Heat pipes are the most effective methods for transferring heat, or thermal energy, from one location to another. These two-phase cooling systems are commonly utilized to cool objects or spaces.
For the hybrid battery management system, heat pipes coupled with phase change materials, air cooling and liquid cooling have been analysed. Finally, this review study describes the limitations and future work opportunities in the research area of thermal management systems in electric vehicle batteries based on heat pipes. 1. Introduction
Hybrid battery thermal management system based on heat pipe To further enhance the heat dissipation performance, heat pipe was usually coupled with air cooling or liquid cooling that will help removing the heat from the condenser side.
Summary of flat heat pipe battery thermal management systems. PCM/HP BTM takes longer operating time to reach a temperature of 50 °C. PCM melting temperature should be at least 3 °C higher than ambient. A single heat pipe catered up to 29.1 % of the cooling load required at a discharge rate of 8C.
Heat pipes are considered a great cooling method for the battery as they have very high thermal conductivity, are geometrically flexible, have compact structures etc. Furthermore, it can also work passively without any added energy. It is also already proven and used widely to cool electronic products.