Advanced Hydrogen-Bromine Flow Battery for Energy Storage

The hydrogen-bromine flow battery has been shown to be a promising candidate for energy storage due to its fast kinetics, fully reversible electrodes and low cost of chemicals. It features high electric-to-electric efficiency, high power density and simple system design. However, today's conventional hydrogen-bromine flow batteries use very expensive membrane materials (such as Nafion®) and platinum catalyst that can be poisoned and corroded when exposed to HBr and Br 2 . TVN Systems is developing an advanced H 2 -Br 2 flow battery incorporating new catalysts that will be more durable than platinum in HBr/Br 2 environment, new membranes with higher perm-selectivity at a fraction of the cost of conventional membranes and novel electrode/cell designs with superior cell performance. The performance, durability and cost advantages of this advanced H 2 -Br 2 flow batteries will be discussed. Acknowledgements This work was funded by Advanced Research Projects Agency-Energy (ARPA-E) of the U. S. Department of Energy under Award No. DE-AR0000262. References Cho KT, Albertus P, Battaglia V, Kojic A, Srinivasan V, and Weber AZ, Energy Technol ., 1 , 596-608 (2013). Kreutzer H, Yarlagadda V, and Nguyen TV, J. Electrochem. Soc. , 159 , F331-F337 (2012)