POLYELECTROLYTE FUEL CELL

摘要

PROBLEM TO BE SOLVED: To resolve concentration of loads such as differential pressures of fuel and oxidizer gas and vibration to a cell in a polyelectrolyte film portion between a gasket and an electrode and easy fracture of the polyelectrolyte film in an edge part of the electrode or a gasket end face. SOLUTION: An angle α comprised of an end part face of at least one electrode and a contact surface of the polyelectrolyte film and the electrode is >90 deg. and <180 deg.. An angle β comprised of the end face of the gasket in at least one electrode side and a contact surface of the polyelectrolyte film and the gasket is >90 deg. and <180 deg.. By this, the loads to the polyelectrolyte film are reduced.