Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 22, 2008
Patent Application Number
10455884
Date Filed
June 6, 2003
Patent Primary Examiner
Patent abstract
Conductivity of carboxylic acid membranes can be increased for use in fuel cells when the membrane comprises a Lewis base, which has, in its protonated form, a pKa greater than the pKa of the carboxylic acid groups of the membrane. When the invention is employed in direct methanol fuel cells, water transport and methanol crossover though the membrane are decreased compared to conventional direct methanol fuel cells employing sulfonic acid membranes.
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