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ALL-VANADIUM SULFATE ACID REDOX FLOW BATTERY SYSTEM

United States Patent Application

20160099480
A1
View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
All-vanadium sulfate redox flow battery systems have a catholyte and an anolyte comprising an aqueous supporting solution including chloride ions and phosphate ions. The aqueous supporting solution stabilizes and increases the solubility of vanadium species in the electrolyte, allowing an increased vanadium concentration over a desired operating temperature range. According to one example, the chloride ions are provided by MgCl.sub.2, and the phosphate ions are provided by (NH.sub.4).sub.2HPO.sub.4.
Nie, Zimin (Richland, WA), Wang, Wei (Kennewick, WA), Wei, Xiaoliang (Richland, WA), Li, Bin (Richland, WA), Liu, Jun (Richland, WA), Sprenkle, Vincent L. (Richland, WA)
BATTELLE MEMORIAL INSTITUTE (Richland WA)
14/ 875,565
October 5, 2015
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under DE-AC0576RL01830 awarded by the U.S. Department of Energy. The government has certain rights in the invention.