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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
This invention concerns an improved PEM for fuel cell applications such that the membrane is more robust. Specifically, this invention provides PEM in MEA systems that have nano-particles carrying proton conducting groups, and improved dimensional stability relative to conductivity. This invention provides a composition of matter for a high proton conductance, solid polymer electrolyte membrane, said membrane comprising: A) a nano-additive carrying proton conducting groups having a size from about 1 nm to about 1,000 run; B) a carrier polymer for the nano-additive of Part A; and C) a proton exchange membrane (PEM) or membrane electrode assembly (MEA) formed by mixing the components of Part A and Part B above. These proton conducting groups are contributed by POSS-based nano-additives or cyclic phosphazene-based nano-additives or small molecules carrying sulfonic acid groups in fuel cells or batteries.
Nowak, Robert M. (Midland, MI), Hartmann-Thompson, Claire (Midland, MI), Bruza, Kenneth J. (Alma, MI), Thomas, Lowell S. (Midland, MI), Meier, Dale J. (Midland, MI)
Michigan Molecular Institute (Midland MI)
12/ 450,793
April 11, 2008
FEDERALLY SPONSORED RESEARCH STATEMENT [0001] This invention was made with Government support under Award No. DE-FG36-06GO86043, Center for Intelligent Fuel Cell Materials Design, Department of Energy by Michigan Molecular Institute as a subcontractor to Chemsultants International, the award recipient. The Government has certain rights in this invention.