Patent ID: 6921599
Filing Date: 2005-07-26
Classification: H01M,Y02E,Y02P

Abstract:
1. A method for manufacturing a membrane electrode assembly for a fuel cell, the membrane electrode assembly including a layer system having an anode electrode, a cathode electrode and a polymer membrane arranged between the anode electrode and the cathode electrode, the method comprising the steps of: manufacturing the fuel cell membrane electrode assembly by joining the polymer membrane, the cathode electrode and the anode electrode, so as to define the layer system, the layer system having a first side, a second side and an outermost edge, a catalyst layer capable of being applied on a side of the membrane or one of the electrodes; applying a polymer material in the form of films to the first and second sides of the layer system; punching and concurrently fastening the film, at least partially, at the outermost edge of the layer system; heating and pressing marginal zones of the film-coated layer system, the polymer material softening or melting in the marginal zones and penetrating the marginal zones of the layer system.