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Systems and Methods for Rebalancing Redox Flow Battery Electrolytes

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Various methods of rebalancing electrolytes in a redox flow battery system include various systems using a catalyzed hydrogen rebalance cell configured to minimize the risk of dissolved catalyst negatively affecting flow battery performance. Some systems described herein reduce the chance of catalyst contamination of RFB electrolytes by employing a mediator solution to eliminate direct contact between the catalyzed membrane and the RFB electrolyte. Other methods use a rebalance cell chemistry that maintains the catalyzed electrode at a potential low enough to prevent the catalyst from dissolving.
PHAM, Ai Quoc (Milpitas, CA), Chang, On Kok (San Jose, CA)
14/ 606,281
January 27, 2015
STATEMENT OF FEDERALLY FUNDED RESEARCH [0002] Inventions included in this patent application were made with Government support under DE-OE0000225 "Recovery Act--Flow Battery Solution for Smart Grid Renewable Energy Applications" awarded by the US Department of Energy (DOE). The Government has certain rights in these inventions.