Patent ID: 6869719
Filing Date: 2005-03-22
Classification: C08L,H01M,Y02E,Y02P

Abstract:
1. A polymer electrolyte fuel cell stack comprising a plurality of unit cells, each unit cell comprising a polymer electrolyte membrane, a pair of electrodes arranged across said polymer electrolyte membrane and having respective catalytic reaction layers, a first separator having means for feeding a supply of fuel gas containing hydrogen gas to one of said electrodes, and a second separator having means for feeding a supply of oxidant gas to the other of said electrodes, and a manifold for feeding at least one of the supply of fuel gas and the supply of oxidant gas to the respective electrodes, the manifold being disposed on a side face of the stack of unit cells, and a sealing portion being disposed inside of the manifold, wherein said sealing portion is constituted by a polymer compound expressed by formula (1): wherein R