MEMBRANE ELECTRODE STRUCTURE FOR FUEL CELL, AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a membrane electrode structure for a fuel cell and a method of manufacturing the same which can control pore distribution of an electrode catalyst layer so that pores having a pore diameter, which significantly contributes to improvement of power generation performance, occupy substantially.

SOLUTION: The membrane electrode structure 1 for a fuel cell includes a catalyst carrier and fibrous carbon in the electrode catalyst layer 42 of a cathode 4. A volume ratio of the fibrous carbon having a fiber length less than 0.6 μm measured by using a laser diffraction type particle size distribution measuring device is 0.5% or less with respect to a total volume of the fibrous carbon.

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