FUEL CELL

摘要

Reaction gas is prevented from flowing out to the outlet without passing through an electrode to cause degradation of power generation efficiency even if the reaction gas flows into rectangular anode side gap and cathode side gap formed between an annular body section and a membrane electrode assembly, respectively, on the anode side and cathode side of a fuel cell. At least one of anode side gasket and cathode side gasket in the fuel cell is provided with an extra seal portion which is coupled with the annular body section to intersect one pair of gap portions having a larger pressure gradient of the fuel gas and the oxidizing agent gas from the upstream side to the downstream side of a fuel gas channel and an oxidizing agent gas channel out of two pairs of gap portions opposing each other at the anode side gap and the cathode side gap.