Redox Flow Batteries

Redox Flow BatteriesT he need to develop energy storage technologies for grid distribution has placed added emphasis on flow batteries.Such flow batteries are attractive for storing electricity generated through solar cells and wind turbines.The advantages of flow batteries include the inherent scalability of their capacity (i.e., through simple modulation of the size of the tanks) and long-term storage of charge.Such batteries work on the principles of reversible fuel cells or galvanic cells.In the storage mode, the electrical energy is first converted into chemical energy by transforming a redox couple into a stable reduced or oxidized state (Figure 1).During the discharge cycle