H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/88 (2006.01) B01D 67/00 (2006.01) B01D 71/00 (2006.01) H01M 4/94 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01) H01M 8/24 (2006.01)
Patent
CA 2430681
The present invention relates to the field of electrochemical cells and fuel cells, more specifically to polymer-electrolyte-membrane (PEM) fuel cells and describes a process for the manufacture of membrane-electrode-assemblies (MEAs) containing five layers. The five-layer MEA is assembled together by means of a lamination process involving as adhesive component. The anode gas diffusion layer, the catalyst coated membrane and the cathode gas diffusion layer are combined together by a low temperature / low pressure lamination process. Handling of the MEAs and assembly of the products into PEMFC and DMFC stacks is simplified. Less damage and perforation of the catalyst coated membrane occurs and thus the performance of the five-layer MEAs is significantly improved.
Fehl Knut
Kohler Joachim
Kramer Anita
Schaack Klaus
Wittpahl Sandra
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Omg Ag & Co. Kg
Umicore Ag & Co. Kg
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