Coating processes – Electrical product produced – Fuel cell part
Reexamination Certificate
2006-11-28
2006-11-28
Ryan, Patrick Joseph (Department: 1745)
Coating processes
Electrical product produced
Fuel cell part
C429S006000, C429S047000
Reexamination Certificate
active
07141270
ABSTRACT:
The present invention relates to a method for the production of a membrane electrode assembly comprising a polymer electrolyte membrane with two opposing membrane surfaces and a cathode and an anode electrode each comprising a catalyst layer and a gas distribution layer. Each catalyst layer is interposed between a membrane surface and the corresponding gas distribution layer. The catalyst layer of the cathode and/or the catalyst layer of the anode comprise at least two sub-layers. According to the present invention at least one of the sub-layers of the cathode electrode and/or the anode electrode is applied directly to the surface of the membrane while the remaining sub-layers are applied to the corresponding gas distribution layers. Finally the assembly of the coated membrane and the coated gas distribution layers is produced.
REFERENCES:
patent: 4876115 (1989-10-01), Raistrick
patent: 5211984 (1993-05-01), Wilson
patent: 5738905 (1998-04-01), Bevers
patent: 5910378 (1999-06-01), Debe et al.
patent: 6197147 (2001-03-01), Bonsel et al.
patent: 6723464 (2004-04-01), Tabata et al.
patent: 2002/0034674 (2002-03-01), Starz et al.
patent: 1 037 295 (1999-05-01), None
patent: WO 97/50142 (1997-06-01), None
K. Koredesch und Simader, “Fuel Cells and their Applications,” Verlag VCH, Weinheim, 1996.
O. Savadogo, “Emerging Membranes for Electochemical Systems: (I) solid polymer electrolyte membranes for Fuel Cell Systems,” J. New Mat. Electrochem Systems, Oct. 22, 1997.
Köhler Joachim
Starz Karl-Anton
Vogt Markus Robert
Wittpahl Sandra
Kalow & Springut LLP
Parsons Thomas H.
Ryan Patrick Joseph
Santalone, Esq. John J.
Umicore AG & Co. KG
LandOfFree
Method for the production of membrane electrode assemblies... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the production of membrane electrode assemblies..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of membrane electrode assemblies... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3630684