Abstract:

 Large-scale lithium-ion battery energy storage system is great important for improving the traditional power grid and the efficient utilize of new energy. In order to achieve a large-scale lithium-ion battery energy storage system with high rate, long life and high security, there is an urgent demand for the high performance battery thermal management system. In this paper, the effect of temperature on the performance of lithium-ion battery is summarized. The research of air cooling, liquid cooling, heat pipe cooling and phase change cooling technologies is reviewed. The application and research status of thermal management technology in the lithium-ion battery energy storage system are analyzed. With the increase of the working rate of lithium-ion battery energy storage system, the heat generated increases and a more efficient thermal management system is needed. The next step of research work should focus on these four aspects: The optimization of air cooling system, the cooling system based on a new medium, the economical heat pipe and the multi-objective optimization design.

Key words: lithium-ion battery, energy storage, thermal management