Tubular solid polymer fuel cell comprising a rod-shaped...

H - Electricity – 01 – M

Patent

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H01M 8/02 (2006.01)

Patent

CA 2621385

There is provided a tubular fuel cell in which a catalyst ink does not penetrate into a gas flow channel at the time of preparing a catalyst layer, and hence does not block the flow channel and thereby improves the electric power generation performance as well as the gals flow property, and there is also provided a production method of the tubular fuel cell. A tubular solid polymer fuel cell including a fuel gas flow channel 2, on the periphery of a rod-shaped current collector 1, communicatively continuous in the axial direction of the rod-shaped current collector, further including a membrane- electrode assembly (MEA) 6 outside the rod-shaped current collector 1 and the fuel gas flow channel 2, and having a structure in which fuel gas flows in the fuel gas flow channel 2 and an oxidizing gas flows outside the membrane- electrode assembly (MEA) 6, the tubular solid polymer fuel cell being characterized in that a part or the whole of the fuel gas flow channel 2 is filled with a porous material having continuous holes communicatively continuous in the axial direction of the fuel gas flow channel.

La présente invention fournit une pile à combustible tubulaire dans laquelle une encre de catalyseur ne pénètre pas dans un canal d~écoulement de gaz au moment de préparer une couche de catalyseur, et par conséquent ne bloque pas le canal d~écoulement et de ce fait améliore la performance de production d'énergie électrique ainsi que la propriété d~écoulement de gaz, et on fournit également un procédé de production de la pile à combustible tubulaire. Une pile à combustible tubulaire en polymère solide comprenant un canal d'écoulement de gaz combustible 2, à la périphérie d'un collecteur de courant sous forme de tige 1, communiquant de manière continue dans la direction axiale du collecteur de courant sous forme de tige, comprenant en outre un ensemble membrane-électrode (EME) 6 à l~extérieur du collecteur de courant sous forme de tige 1 et du canal d'écoulement de gaz combustible 2, et ayant une structure selon laquelle le gaz combustible s~écoule dans le canal d'écoulement de gaz combustible 2 et un gaz oxydant s~écoule à l~extérieur de l~ensemble membrane-électrode (EME) 6, la pile à combustible tubulaire en polymère solide étant caractérisée en ce qu~une partie ou la totalité du canal d'écoulement de gaz combustible 2 est remplie d~un matériau poreux ayant des trous continus communiquant de manière continue dans la direction axiale du canal d'écoulement de gaz combustible.

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