Patent ID: 8481229
Filing Date: 2013-07-09
Classification: H01M,Y02E

Abstract:
1. A fuel cell stack comprising: a membrane electrode assembly including an anode electrode, a cathode electrode, an electrolyte membrane interposed between the anode electrode and the cathode electrode, which are laminated onto each other; a pair of end plates sandwiching the membrane electrode assembly from both sides in a laminating direction of the membrane electrode assembly; and a pair of backing plates at an outside of the end plates in a laminating direction of the membrane electrode assembly and the end plates, and a first plate spring tightening the membrane electrode assembly and the end plates in the laminating direction, the first plate spring including two arm sections for pressing the end plates and a connecting section connecting the two arm sections so as to have a C-shaped cross-section; wherein a tip of each of the arm sections of the first plate spring is apart from the backing plates.