FUEL CELL AND OXIDANT DISTRIBUTION PLATE FOR FUEL CELL

摘要

A fuel cell and an oxidant distribution plate for fuel cells are disclosed which enable to humidify an oxidant gas and/or a fuel, which are flowing in backside channels arranged with their backs to an MEA, in the fuel cell by effectively utilizing water within the fuel cell. The fuel cell comprises an MEA (1), an oxidant distribution plate (3) which is arranged opposite to an oxidant electrode for supplying an oxidant gas to the oxidant electrode, and a fuel distribution plate (4) which is arranged opposite to a fuel electrode for supplying a fuel to the fuel electrode. At least one of the oxidant distribution plate (3) and the fuel distribution plate (4) has a backside channel (31, 41) which is formed in the back surface thereof that faces away from the MEA (1), and a reaction channel (32, 42) which is formed in the front surface thereof that faces the MEA (1) and communicates with the backside channel (31, 41).