<p>This invention provides a fuel cell comprising a cathode catalyst layer (2), an anode catalyst layer (3) comprising a perfluoro-type electrically conductive binder having an aggregate structure, in which a hydrophilic group faces outward and a hydrophobic (lipophilic) group faces inward, and a proton-conductive film (6) disposed between the cathode catalyst layer (2) and the anode catalyst layer (3).</p>
