POLYMER ELECTROLYTE TYPE FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a polymer electrolyte type fuel cell excellent in stability of an output voltage without causing flooding even in a low-output operation by smoothly draining condensed water in a separator plate of the fuel cell.

SOLUTION: This polymer electrolyte type fuel cell is provided with: an anode and a cathode catching a polymer electrolyte film; the anode-side conductive separator plate having a gas passage for supplying a fuel gas to the anode; and the cathode-side conductive separator plate having a gas passage for supplying an oxidizer gas to the cathode. The gas passage of at least either one of the conductive separator plates is so structured as to set the flow of the gas substantially downward in the gravity direction of the cell, and has a recessed part on the inside surface of the gas passage.

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