Patent ID: 7070872
Filing Date: 2006-07-04
Classification: H01M,Y02E,Y02T

Abstract:
1. A fuel cell stack comprising a stacking body formed by stacking a plurality of assemblies each interposed between separators, each of said assemblies including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said stacking body being tightened by a pair of end plates provided at opposite ends of said stacking body in the stacking direction, wherein at least one of said separators includes a pair of separator plates and a metal plate interposed between said separator plates; each of said separator plates has an embossed section comprising protrusions protruding toward said metal plate and recesses spaced from said metal plate; and said protrusions of said embossed section in one separator plate face said recesses of said embossed section in the other separator plate, respectively, wherein a coolant flow passage is formed between said metal plate and one separator plate, and between said metal plate and the other separator plate.