Patent ID: 8445163
Filing Date: 2013-05-21
Classification: B32B,H01M,Y02E,Y10T

Abstract:
1. A membrane-electrode assembly for a fuel cell, comprising: an anode; a cathode facing the anode; and a polymer electrolyte membrane between the anode and the cathode, wherein the cathode comprises an electrode substrate and a catalyst layer supported by the electrode substrate, wherein the catalyst layer comprises mesopores having an average pore diameter ranging from about 20 nm to about 40 nm and has a mesopore volume ranging from about 0.013 cm wherein the catalyst layer comprises macropores having an average pore diameter ranging from about 0.1 μm to about 5 μm and has a macropore volume ranging from about 0.27 cm wherein the catalyst layer has a specific surface area (BET) of between about 3.16 m