US Patent 7402351 Carboxylic acid-based ionomer fuel cells
Patent 7402351 was granted and assigned to E.I. Du Pont De Nemours And Company on July, 2008 by the United States Patent and Trademark Office.
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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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US Patent 07402351 Carboxylic acid-based ionomer fuel cells US Patent 7402351 Carboxylic acid-based ionomer fuel cells
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Patent Number
0740235100
Patent Number
740235100
Edits on 18 May, 2023
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074023510
Date of Patent
July 22, 2008
0Patent Application Number
104558840
Date Filed
June 6, 2003
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074023510
Date of Patent
July 22, 2008
0Patent Application Number
104558840
Date Filed
June 6, 2003
0Official Website
Patent Primary Examiner
Edits on 9 Jun, 2022
Golden AI
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Website URL
Edits on 30 Nov, 2021
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US Patent 07402351 Carboxylic acid-based ionomer fuel cells
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07402351
Date of patent
July 22, 2008
Patent application number
10455884
Date Filed
June 6, 2003
Patent primary examiner
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