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Aqueous Na-ion redox flow battery with ceramic NaSICON membrane

United States Patent

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10,586,997
March 10, 2020
View the Complete Patent at the US Patent & Trademark Office
A redox flow battery is described herein that has a sodium-super-ionic-conductor NaSICON barrier disposed between an anolyte chamber of the battery and the catholyte chamber of the battery. The NaSICON barrier prevents crossover of solvents or active redox species between the anolyte chamber and the catholyte chamber, while permitting transport of sodium ions between the chambers. In exemplary embodiments, the anolyte chamber includes an anolyte solution that comprises a first active redox species dissolved in a first solvent, while the catholyte chamber includes a catholyte solution that comprises a second active redox species dissolved in a second solvent.
15/ 709,653
September 20, 2017
1/1
H01M 8/18 (20060101)C07D 221/06 (20060101)C07C 39/08 (20060101)C07C 229/16 (20060101)H01M 4/90 (20060101)H01M 8/20 (20060101)
STATEMENT OF GOVERNMENTAL INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The U.S. Government has certain rights in the invention.