Patent ID: 8486583

Claim:
A fuel cell comprising: an electrolyte membrane; a first electrode disposed on a surface of the electrolyte membrane; and a second electrode which is disposed on another surface of the electrolyte membrane and which has a plurality of electrically conductive nanocolumns oriented in one direction with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane, a catalyst supported on the electrically conductive nanocolumns, and an electrolyte resin coating the electrically conductive nanocolumns; wherein the electrically conductive nanocolumns have, on an outer surface thereof, an amorphous layer; wherein a thickness of the amorphous layer is greater than or equal to 0.5 nm and less than or equal to 10 nm; and wherein portions of the electrically conductive nanocolumns that contact the electrolyte membrane are oriented with an inclination of 60° or less with respect to the planar direction of the electrolyte membrane.