Patent ID: 7678490

Claim:
A polymer electrolyte fuel cell comprising a cell stack comprising a plurality of cells including a hydrogen ion conductive polymer electrolyte membrane, a pair of electrodes sandwiching said membrane and a pair of conductive separators, one of which has a gas flow channel for supplying and exhausting a fuel gas to and from one of said electrodes and the other has a gas flow channel for supplying and exhausting an oxidant gas to and from the other electrode, wherein at least one of said gas flow channels is connected to an inlet manifold at a junction, the lowermost part of said junction is positioned above a gas supply pipe connected to said inlet manifold, and said gas supply pipe is extended into said inlet manifold beyond an end plate located at a nearest end of said cell stack in the laminating direction of said cell stack, and an extended part of said gas supply pipe has a plurality of holes in the top thereof, which are spaced apart at decreasing intervals inwardly.