| abstract |
The present invention relates to a membrane-electrode assembly for a fuel cell, a method for manufacturing the same, and a fuel cell system including the same, wherein the membrane-electrode assembly for a fuel cell is positioned on both sides of a polymer electrolyte membrane and the polymer electrolyte membrane and includes an anode including a catalyst layer. Electrodes and cathode electrodes. The catalyst layer is in contact with the polymer electrolyte membrane, and includes a first catalyst layer having a porosity of 40% or less, and a second catalyst layer formed in the first catalyst layer and having a porosity of 50% or more.n n n The membrane-electrode assembly for a fuel cell of the present invention can increase the catalyst utilization efficiency.n n n n Fuel cell, polymer electrolyte membrane, electrically conductive polymer, hydrocarbon fuel barrier |