Skip to Content
Find More Like This
Return to Search

Iron-sulfide redox flow batteries

United States Patent

June 14, 2016
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficiency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S.sup.2- and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.
Xia; Guanguang (Richland, WA), Yang; Zhenguo (Bellevue, WA), Li; Liyu (Richland, WA), Kim; Soowhan (Seoul, KR), Liu; Jun (Richland, WA), Graff; Gordon L (West Richland, WA)
Battelle Memorial Institute (Richland, WA)
14/ 079,135
November 13, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract DE-AC0576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.