Process for applying electrode layers to a polymer electrolyte membrane strip for fuel cells
AssigneeDegussa-Huls AG
InventorsKarl-Anton Starz, Ralf Zuber, Wolfgang Göttenauer, Knut Fehl, Manfred Diehl
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Abstract
A process is disclosed for applying electrode layers to a polymer electrolyte membrane strip in a desired pattern, wherein the front and back of the membrane are continuously printed with the electrode layers in the desired pattern using an ink containing an electrocatalyst, and the printed electrode layers are dried at elevated temperature immediately after the printing operation, the printing taking place while maintaining accurate positioning of the patterns of the electrode layers on the front and back in relation to one another.
Claims13
A process for applying an electrode layer to a polymer membrane strip in a desired pattern, comprising:
- treating a polymer membrane to thereby form a water content of 2 to 20 wt % in said polymer membrane, having a front and back surface,
- printing on said front and back surface an electrode layer in a desired pattern using an ink comprising an electrocatalyst to thereby form a printed electrode layer on said surface,
- said printing taking place while maintaining accurate positioning of the patterns of the electrode layers on the front and back in relation to one another,
- drying said front and back surface having said printed electrode layer at elevated temperature immediately after forming said printed electrode layer.
Dependencies are inferred from the claim text.