| 摘要 |
The polymer electrolyte type hydrogen-oxygen fuel cell of the present invention comprises an oxygen electrode (72, 73) and a hydrogen electrode (74), a polymer electrolyte membrane (71) provided between the oxygen electrode (72, 73) and hydrogen electrode (74) and electron conductors (75) provided on the side of the electrodes which is opposite to the electrolyte side and the oxygen electrode (72, 73) comprises a catalytically active component, a carrier for the catalytically active component and a binder and has such a gradient in water repellency across the thickness that the water repellency is highest in the area adjacent to the electrolyte (71) and lowest in the area adjacent to the conductor (75). In this fuel cell, flooding of water at the interface between the oxygen electrode (72, 73) and the electrolyte (71) can be prevented. <IMAGE> |
