Polymer electrolyte membranes for use in fuel cells
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United States of America Patent
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Sep 3, 2002
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N/A
app pub date -
Apr 30, 1997
filing date -
Nov 18, 1996
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Abstract
A polymer electrolyte membrane composed of polystyrene sulfonic acid (PSSA) crosslinked within a poly(vinylidene fluoride) (PVDF) matrix is provided. This membrane exhibits low methanol crossover which translates to higher fuel and fuel cell efficiencies. A fuel cell comprising a PSSA-PVDF membrane is also provided. Further, methods of decreasing the fuel crossover rate, enhancing fuel cell efficiency, and enhancing electrical performance of a fuel cell are provided.
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