Proton conducting polymer membrane, method for production thereof and fuel cell therewith
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United States of America Patent
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Oct 15, 2013
Grant Date -
May 28, 2009
app pub date -
May 31, 2006
filing date -
Jun 3, 2005
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Abstract
There are provided a novel proton-conducting polymer membrane that shows good workability in a fuel cell assembling process and good proton conductivity and durability even under high-temperature, non-humidified conditions, a method for production thereof, and a fuel cell therewith. The proton-conducting polymer membrane includes: a polymer membrane containing a polybenzimidazole compound having a sulfonic acid group and/or a phosphonic acid group; and vinylphosphonic acid contained in the polymer membrane. The fuel cell uses the proton-conducting polymer membrane. The polybenzimidazole compound preferably includes a sulfonic and/or phosphonic acid group-containing component represented by Structural Formula (1):
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