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System and Method for Returning Material from the BR2 Side of an H2/BR2 Flow Battery Back after Crossover

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A flow battery system includes a first tank having a hydrogen reactant, a second tank having a bromine electrolyte, at least one cell including a hydrogen reactant side operably connected to the first tank through an 3/4 feed and return system and a bromine electrolyte side operably connected to the second tank, and a crossover return system. The crossover return system includes a vessel operably connected to the 3/4 feed and return system and configured to receive an effluent containing a first portion of the hydrogen reactant and a second portion of the bromine electrolyte, the vessel configured to separate the first portion from the second portion. A first return line returns the first portion of the hydrogen reactant to the first tank and a second return line returns the bromine electrolyte to the second tank.
Knudsen, Edward (Menlo Park, CA), Albertus, Paul (Washington, DC), Tucker, Michael C. (Piedmont, CA), Cho, Taek Kyu (Albany, CA), Weber, Adam Z. (Pleasant Hill, CA)
15/ 105,874
December 22, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under DE-AR0000137 awarded by the Department of Energy Advanced Research Projects Agency-Energy. The government has certain rights in the invention.