Fuel cell

A fuel cell is provided having a positive electrode layer and a negative electrode layer disposed on the front and rear sides of an electrolyte membrane, for generating electricity by bringing hydrogen into contact with a catalyst in the negative electrode layer and bringing oxygen into contact with a catalyst in the positive electrode layer. The positive electrode layer includes the components electrolyte, carbon, a catalyst carried on the carbon, a pore-forming material and a water-repellent resin. In the electrolyte membrane vicinity of the positive electrode layer, which is a part where the reaction between the oxygen and the hydrogen ions proceeds readily, the electrolyte/carbon weight ratio and the carried catalyst amount are made large. In parts where product water tends to stagnate, the amounts of the pore-forming material and the water-repellent resin are increased.