摘要 |
A polymer electrolyte membrane is provided having a thickness of 90 microns or less and comprising a polymer, said polymer comprising a highly fluorinated backbone and recurring pendant groups according to the formula: YOSO2-CF2-CF2-CF2-CF2-O-[polymer backbone] (I) where Y is H<+> or a monovalent cation such as an alkali metal cation. Typically, the membrane is a cast membrane. Typically, the polymer has a hydration product of greater than 22,000. Typically, the polymer has an equivalent weight of 800-1200. |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HAMROCK, STEVEN, J.;RIVARD, LINDA, M.;MOORE, GEORGE, G., I.;FREEMYER, H. TODD |