Fuel cell, in particular fuel cell with polymeric electrolyte or direct methanol fuel cell

Fuel cell comprises a gas diffusion electrode on the anode side and/or on the cathode side having an electrode diffusion zone (21) and a current-reducing component. Electrical resistance of the microscopic contact surface (24) between the electrode diffusion zone and the surface (22) of the current-reducing component is reduced by increasing the contact surface as a result of plastic deformation. An Independent claim is also included for a process for the production of the fuel cell. Preferred Features: The plastic deformation occurs in a region of the electrode diffusion zone and/or a region of the contact region, preferably using a mechanical surface load of 10 mbar -10000 bar. The current-reducing component and/or the gas diffusion electrode is provided with a crystalline or amorphous layer.