Patent ID: 8329322
Filing Date: 2012-12-11
Classification: H01M,Y02E,Y02P

Abstract:
1. An electrode-membrane-frame assembly for polyelectrolyte fuel cells, comprising: a membrane-electrode assembly comprising: a polyelectrolyte membrane having a front surface, and a back surface; and a pair of electrode layers placed on portions of the front and back surfaces, respectively, of the polyelectrolyte membrane inner than a peripheral edge portion of the polyelectrolyte membrane; a frame body which retains the peripheral edge portion of the polyelectrolyte membrane, the frame body being formed from resin; and a plurality of elastic members for sealing communications between a front surface side and a back surface side of the membrane-electrode assembly in a peripheral edge portion of the membrane-electrode assembly, wherein the frame body comprises: the first retaining portions and the second retaining portions are so arrayed that retaining positions of the polyelectrolyte membrane by the first retaining portions and retaining positions of the polyelectrolyte membrane by the second retaining portions are alternately placed along the peripheral edge portion of the polyelectrolyte membrane, and the plurality of elastic members includes a plurality of front-surface side elastic members placed on the front surface of the polyelectrolyte membrane directly between adjacent ones of the first retaining portions, and a plurality of back-surface side elastic members placed on the back surface of the polyelectrolyte membrane directly between adjacent ones of the second retaining portions.