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Multiple-membrane multiple-electrolyte redox flow battery design

United States Patent

May 2, 2017
View the Complete Patent at the US Patent & Trademark Office
A redox flow battery is provided. The redox flow battery involves multiple-membrane (at least one cation exchange membrane and at least one anion exchange membrane), multiple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and at least one electrolyte disposed between the two membranes) as the basic characteristic, such as a double-membrane, triple electrolyte (DMTE) configuration or a triple-membrane, quadruple electrolyte (TMQE) configuration. The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte.
Yan; Yushan (Hockessin, DE), Gu; Shuang (Newark, DE), Gong; Ke (Newark, DE)
University of Delaware (Newark, DE)
13/ 918,452
June 14, 2013
GOVERNMENT SUPPORT This invention was made with government support under Grant Nos. DE-AR000009 and DE-AR0000346 awarded by ARPA-E project of the U.S. Department of Energy. The government has certain rights in the invention.