Patent ID: 8293404
Filing Date: 2012-10-23
Classification: H01M,Y02E,Y02P

Abstract:
1. A catalyst structure body for a fuel cell, comprising: (i) an agglomerate structure in which agglomerates each formed by aggregation of a catalyst-supporting carbon in which a catalyst is supported on a surface of a carbon support, are gathered so as to form a pore between the agglomerates; and (ii) a proton-conductive polymer which enters the interior of the pore between the agglomerates in the agglomerate structure, wherein an average thickness of the proton-conductive polymer present in the pore is set at 3 to 50 nanometers, and wherein an average pore diameter of the pores in a state where the proton-conductive polymer is attached is set at 40 to 350 nanometers, and wherein a supported catalyst concentration in the catalyst-supporting carbon is set at 18% to 40% by mass provided that a mass of the catalyst-supporting carbon is defined as being 100%.