This $249,998 National Science Foundation Project Grant will support the development of fire-safe and low-cost iron-chromium redox flow batteries for residential solar energy storage by Southern Illinois University Carbondale. The university will synthesize novel perfluorophosphonic acid-zirconium polymer membranes to transport protons while reducing unwanted metal electrolyte crossovers in flow batteries. It will also design, construct, and evaluate a 7 kW iron-chromium redox flow battery stack for residential solar owners. If successful, this research could lead to the commercialization of affordable and safe iron-chromium batteries for homes, as well as new proton-conductive fluoropolymers for fuel cells, electrolyzers, and other flow batteries. This award falls under the NSF Technology, Innovation, and Partnerships program (CFDA 47.084), which supports science and engineering research driving technological breakthroughs and solutions to national challenges.
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