Recent progress in zinc-bromine flow battery energy storage technologies

The use of zinc-bromine flow battery technologies has a number of advantages for large-scale electrical energy storage applications including low cost, long service life and environmental friendliness. It has a huge potential for a high extent of renewable energy penetration, distributed generation and smart grid. This paper briefly introduces the principle and component configuration of zinc-bromine flow batteries, analyzes their characteristics, and reviews recent state-of-art development in the area. Finally, recommendations for future research are proposed.