TUBE-SHAPED SOLID POLYMER FUEL CELL AND METHOD FOR PRODUCING TUBE-SHAPED SOLID POLYMER FUEL CELL

摘要

A tube-shaped solid polymer fuel cell is provided with communicating fuel gas channels 2 on the periphery of a bar-shaped current collector 1 and along the axis of the bar-shaped current collector 1 and the membrane-electrode assembly (MEA) 6 on the outside of the bar-shaped current collector 1 and the fuel gas channels 2 and has a structure in which a fuel gas flows through the fuel gas channels 2 and an oxide gas flows outside the membrane-electrode assembly (MEA) 6, wherein some or all of the fuel gas channels 2 are filled with a porous material having communication pores along the axis thereof and a conductive particulate having resistance to corrosion is mixed in with the porous material. The tube-shaped solid polymer fuel cell of the present invention makes it possible to improve gas flowability at the time of production of catalyst layers while avoiding infiltration of the gas channels by a catalyst ink so as to block the channels and thus lower cell resistance at the time of fuel cell operation. Thus, power generation performance is improved by the present invention.