SEALING STRUCTURE OF POLYMER ELECTROLYTE TYPE FUEL CELL IMPROVING SEALING ABILITY AND UNBALANCE OF STRESS DISPERSING

摘要

PURPOSE: A sealing structure of a polymer electrolyte type fuel cell is provided, which improves a sealing ability by double sealing of an elastic rubber and a gasket and can disperse unbalance of stress applied to a separator and a membrane-electrode assembly. CONSTITUTION: The sealing structure comprises: the separator(100) having a sealing groove(110)(110') filled with the elastic rubber by a dispenser; the gasket placed between the separator(100) and the membrane-electrode assembly; additionally, an anchor(112) connected to the sealing groove(110) and having a larger width than the width of the sealing groove. The elastic rubber is made of at least one of a silicon rubber, a fluorine rubber, and an olefin rubber. And the material of the gasket is the same as the material of the separator.