Solid polymer electrolyte fuel cell membrane with anion exchange membrane
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United States of America Patent
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May 14, 2013
Grant Date -
Oct 21, 2010
app pub date -
Dec 17, 2008
filing date -
Dec 21, 2007
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Abstract
Disclosed is a solid polymer electrolyte fuel cell membrane comprising an anion exchange membrane that contains a hydrocarbon-based anion exchange resin, wherein the water permeability at 25° C. is 1400 g m−2 hr−1 or greater, the anion exchange capacity is 0.2 to 5.0 mmol·g−1, the percentage of water content at 25° C. is 7% by weight or greater, and the thickness is 3 to 50 μm. It is especially preferable as a solid polymer electrolyte fuel cell membrane when said anion exchange membrane is an ion exchange membrane with a 5 to 15 μm-thick porous membrane substrate, wherein the voids in said porous membrane are filled with a hydrocarbon-based anion exchange resin.
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