VERFAHREN ZUR HERSTELLUNG VON MEMBRAN-ELEKTRODEN- EINHEITEN UNTER VERWENDUNG VON MIT KATALYSATOR BESCHICHTETEN MEMBRANEN UND KLEBSTOFFEN

The 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...

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Bibliographic Details
Main Authors SCHAACK, KLAUS, KOEHLER, JOACHIM, KRAEMER, ANITA, WITTPAHL, SANDRA, FEHL, KNUT
Format Patent
LanguageGerman
Published 15.08.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SEPARATION
TRANSPORTING
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Summary:The 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 an 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.
Bibliography:Application Number: AT20020012097T