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US 2019/0198903 A1Published application
Membrane-electrode assembly for fuel cells having improved durability and a polymer electrolyte membrane fuel cell including the same
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsInYu Park, Jae Jun Ko, Bo Ki Hong
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Abstract
Disclosed are a membrane-electrode assembly for fuel cells with improved durability and a polymer electrolyte membrane fuel cell including the same. The membrane-electrode assembly includes an antioxidant, Sm-doped cerium oxide in the electrolyte membrane, which has a controlled microstructure through high-temperature heat treatment, thereby providing both superior antioxidant activity and excellent long-term stability.
Claims19
A membrane-electrode assembly for fuel cells comprising:
- an electrolyte membrane;
- and
- one or more electrodes associated with the electrolyte membrane;
- wherein at least one of the electrolyte membrane and the electrodes comprises an antioxidant, and
- the antioxidant comprises a samarium (Sm)-doped cerium oxide (SDC).
2 more elements
A method of preparing a membrane-electrodes assembly, comprising
- heat treating a samarium (Sm)-doped cerium oxide (SDC);
- providing the heat treated SDC to at least one of an electrolyte membrane and a pair electrodes comprises;
- and
- dispose the pair of electrodes on both surfaces of the electrolyte membrane.
1 more element
Dependencies are inferred from the claim text.