High durability fuel cell components with cerium salt additives

Patent · Tue Aug 30 04:00:00 EDT 2016

OSTI ID:1531940

Frey, Matthew H.; Pierpont, Daniel M.; Hamrock, Steven J.

A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.5 charge equivalents based on the molar amount of acid functional groups present in the polymer electrolyte, more typically between 0.005 and 0.2, more typically between 0.01 and 0.1, and more typically between 0.02 and 0.05.

• Research Organization: 3M Innovative Properties Company, St. Paul, MN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC36-02AL67621
• Assignee: 3M Innovative Properties Company (St. Paul, MN)
• Patent Number(s): 9,431,670
• Application Number: 14/098,163
• OSTI ID: 1531940
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY