MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELLS

Disclosed is a membrane-electrode assembly for fuel cells that can improve durability and prevent reduction in a lifespan thereof. The membrane-electrode assembly for fuel cells includes a pair of electrodes, an electrolyte membrane stacked between the electrodes, the which includes a membrane extension member extending outside the electrodes, a sub-gasket bonded to both surfaces of the membrane extension member, which includes an upper gasket and a lower gasket extending outside the membrane extension member and being bonded to each other, and an opening formed in at least one of the upper gasket and the lower gasket so as to discharge water produced during an electrochemical reaction occurring in the electrodes, which is adjacent to the membrane extension member.