CATALYST COATED MEMBRANE, METHOD OF MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY CONTAINING THE SAME AND FUEL CELL USING MEMBRANE ELECTRODE ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a catalyst coated membrane which can improve unit cell performance by exercising to a maximum extent activeness of a catalyst of an electrode catalyst layer and a membrane electrode assembly and its manufacturing method, and provide a fuel cell equipped with the membrane electrode assembly to obtain an improved output density and improved output voltage performance.

SOLUTION: The catalyst coated membrane (CCM) is provided with an anode catalyst layer composed of a first catalyst layer containing a non-carrying catalyst and a second catalyst layer containing a carrying catalyst, a cathode catalyst layer containing a carrying catalyst and an electrolyte membrane arranged between the anode catalyst layer and the cathode catalyst layer, and the first catalyst layer of the anode catalyst layer is arranged neighboring the electrolyte membrane. The membrane electrode assembly containing the above membrane and its manufacturing method and a fuel cell having the membrane electrode assembly are provided.

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