Patent ID: 7776490
Filing Date: 2010-08-17
Classification: H01M,Y02E

Abstract:
1. A fuel cell including a membrane electrode assembly and first and second separators sandwiching said membrane electrode assembly, said membrane electrode assembly including a first electrode, a second electrode, and an electrolyte membrane interposed between said first electrode and said second electrode, wherein reactant gas flow fields are formed between said membrane electrode assembly and said first and second separators for supplying reactant gases along said first and second electrodes, said fuel cell comprising: a seal member formed at least on said first separator to cover an outer edge of said first separator, said seal member including an outer seal and an inner seal facing said first electrode; and a plurality of closure seals provided in a space between an inner edge of said inner seal and a protrusion forming said reactant gas flow field adjacent to said inner edge, said closure seals preventing flow of said reactant gas along said space; wherein said inner seal, said outer seal and said plurality of closure seals are provided between said first separator and said second separator sandwiching said membrane electrode assembly.