Fuel cell stack, fuel cell, and method of manufacturing fuel cell stack
OwnerShoji Sekinoinventor
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Abstract
A fuel cell stack includes two or more cells. The cell includes a solid polymer electrolyte membrane, a porous metallic cathode, and a porous metallic anode. The cathode is arranged on one surface of the solid polymer electrolyte membrane through a catalyst layer. The anode is arranged on the other surface of the solid polymer electrolyte membrane through a catalyst layer. Two or more cells are connected in an electrically conductive manner by resistance welding of the cathode of one of the cells and the anode of the other one of the cells with a conductive metallic foil interposed therebetween.
Claims10
A fuel cell stack comprising:
- two or more cells comprising:
- a solid polymer electrolyte membrane;
- a porous metallic cathode;
- and
- a porous metallic anode, wherein
- said cathode is arranged on one surface of said solid polymer electrolyte membrane through a catalyst layer,
- said anode is arranged on the other surface of said solid polymer electrolyte membrane through a catalyst layer, and
- said two or more cells are connected in an electrically conductive manner by resistance welding of said cathode of one of said cells and said anode of the other one of said cells with a conductive metallic foil interposed therebetween.
A method of manufacturing a fuel cell stack comprising:
- providing two or more cells,
- said two or more cells comprising:
- a solid polymer electrolyte membrane;
- a porous metallic cathode;
- and
- a porous metallic anode, said cathode being arranged on one surface of said solid polymer electrolyte membrane through a catalyst layer, and said anode being arranged on the other surface of said solid polymer electrolyte membrane through a catalyst layer;
- and
- connecting said two or more cells in an electrically conductive manner by resistance welding of said cathode of one of said cells and said anode of the other one of said cells with a conductive metallic foil interposed therebetween.
Dependencies are inferred from the claim text.