Patent ID: 7749640
Filing Date: 2010-07-06
Classification: H01M,Y02E

Abstract:
1. A fuel cell comprising a cathode catalyst layer comprising a conductive perfluoro-binder having a micellar structure formed by outwardly orienting hydrophobic (lipophilic) groups and inwardly orienting hydrophilic groups; an anode catalyst layer comprising a conductive perfluoro-binder having a micellar structure formed by outwardly orienting hydrophilic groups and inwardly orienting hydrophobic (lipophilic) groups; and a proton conductive membrane provided between the cathode catalyst layer and the anode catalyst layer, wherein the anode catalyst layer shows a weight loss exceeding 10% after immersing the layer in 100% by weight of a methanol solution kept at 25° C. for 24 hours, and the cathode catalyst layer shows a weight loss of 10% or less after immersing the layer in 100% by weight of a methanol solution kept at 25° C. for 24 hours.