Fuel cell electrode having increased oxygen concentration and methods of preparing electrode
AssigneeNissan North America, Inc.
InventorsCenk Gumeci, Amod Kumar, Nilesh Dale
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Abstract
A membrane electrode assembly includes a membrane, a gas diffusion layer and a catalyst layer between the membrane and the gas diffusion layer. The catalyst layer comprises catalyst comprising active catalyst particles supported on support particles, a proton conducting ionomer and a phospholipid containing soluble oxygen. One method of preparation includes preparing a catalyst solution comprising a solvent and catalyst, adding proton conducting ionomer to the catalyst solution to form a catalyst ink, saturating a solution of solvent and a phospholipid with oxygen and mixing the saturated phospholipid with the catalyst ink.
Claims20
A membrane electrode assembly, comprising:
- a membrane;
- a gas diffusion layer;
- and
- a catalyst layer between the membrane and the gas diffusion layer, the catalyst layer comprising:
- catalyst comprising active catalyst particles supported on support particles;
- a proton conducting ionomer;
- and
- a phospholipid containing soluble oxygen.
A method of preparing a membrane electrode assembly, comprising:
- preparing a catalyst solution comprising a solvent and catalyst;
- adding proton conducting ionomer to the catalyst solution to form a catalyst ink;
- saturating a solution of solvent and a phospholipid with oxygen;
- mixing the saturated phospholipid with the catalyst ink.
A method of preparing a membrane electrode assembly, comprising:
- preparing a catalyst solution comprising a solvent and catalyst;
- saturating a solution of solvent and a phospholipid with oxygen;
- mixing proton conducting ionomer to the saturated phospholipid;
- depositing a catalyst solution comprising the solvent and the catalyst on one of a membrane and a gas diffusion layer;
- and
- depositing the mixture of proton conducting ionomer and the saturated phospholipid on the deposited catalyst solution.
Dependencies are inferred from the claim text.