Proton conductive polymer, catalyst composite, electrolyte membrane for fuel cell and fuel cell
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United States of America Patent
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Sep 29, 2009
Grant Date -
Apr 28, 2005
app pub date -
Aug 25, 2004
filing date -
Aug 28, 2003
priority date (Note) -
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Abstract
The present invention is to provide an electrolyte membrane for fuel cell of low fuel permeability and high proton conductivity and to provide a fuel cell comprising the electrolyte membrane.According to the present invention, a polymer membrane including repeating unit of five-membered heterocyclic rings is used as an electrolyte membrane of the fuel cell. The electrolyte membrane has high proton conductivity with free from moves of the fuel or water when the proton conducts in the electrolyte membrane.
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