Method for preparing membrane-electrode assembly, membrane-electrode assembly prepared therefrom and fuel cell comprising the same

Abstract

Provided is a method for producing a membrane-electrode assembly for a full cell, comprising: preparing catalyst ink slurry from a catalyst, an ion conductive polymer and a solvent; applying the catalyst ink slurry onto a support film, followed by vacuum drying; and transferring the support film to either surface or both surfaces of an electrolyte membrane to form a catalyst layer on the electrolyte membrane. A membrane-electrode assembly obtained by the method and a fuel cell including the membrane-electrode assembly are also provided. The method provides a membrane-electrode assembly having increased porosity, and thus the membrane-electrode assembly shows significantly reduced mass transfer resistance. Therefore, the output density and the quality of the fuel cell including the membrane-electrode assembly prepared therefrom can be improved.

Dependencies are inferred from the claim text.