FUEL CELL STACK, REPAIRING METHOD OF FUEL CELL STACK, AND SHORT CIRCUIT MEMBER ELECTRICALLY SHORT-CIRCUITING OPERATION DEFECTIVE UNIT CELL IN FUEL CELL STACK

摘要

PPROBLEM TO BE SOLVED: To easily repair a defective unit cell without damaging a reaction membrane. PSOLUTION: A membrane electrode assembly (MEA) 25 comprising a solid electrolyte 31, an anode 33, and a cathode 35 is installed between an anode side separator 1 and a cathode side separator 3. A gas passage groove 5 communicating with a manifold Mai is installed on a surface facing the MEA 25 of the anode side separator 1, an elastically deformable gas shutting off member 51 is installed in a gas shutting off member housing recess 49 in the vicinity of the manifold Mai of the gas passage groove 5. The back of the gas shutting off member 51 is communicated with a working hole 53, and an adhesive 55 is filled in the working hole 53 to deform the gas shutting off member 51 and to shut off the gas passage groove 51. PCOPYRIGHT: (C)2005,JPO&NCIPI