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Aqueous electrolytes for redox flow battery systems

United States Patent

9,793,566
October 17, 2017
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
An aqueous redox flow battery system includes an aqueous catholyte and an aqueous anolyte. The aqueous catholyte may comprise (i) an optionally substituted thiourea or a nitroxyl radical compound and (ii) a catholyte aqueous supporting solution. The aqueous anolyte may comprise (i) metal cations or a viologen compound and (ii) an anolyte aqueous supporting solution. The catholyte aqueous supporting solution and the anolyte aqueous supporting solution independently may comprise (i) a proton source, (ii) a halide source, or (iii) a proton source and a halide source.
Liu; Tianbiao (Richland, WA), Li; Bin (Richland, WA), Wei; Xiaoliang (Richland, WA), Nie; Zimin (Richland, WA), Wang; Wei (Kennewick, WA), Liu; Jun (Richland, WA), Sprenkle; Vincent L. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
14/ 690,224
20160308233
April 17, 2015
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with government support under Contract DE-AC05-76RL01830, awarded by the U.S. Department of Energy. The government has certain rights in the invention.