Green paper for producing a gas diffusion layer for a fuel cell
AssigneeGiesecke+Devrient Currency Technology GmbH
InventorsKarlheinz MAYER, Alexander TANTSCHER
Life of this patent
Estimating the term…
Abstract
A green paper is provided for producing a gas diffusion layer (GDL) for a fuel cell. A process is for producing a green paper for producing a gas diffusion layer (GDL) for a fuel cell. The green paper includes at least one first, watermarked paper web. The watermark forms the patterning for the flow field or gas distribution structure of the gas diffusion layer (GDL) produced from the green paper. The first paper web is admixed with metal powder and/or metal fibres. The eventual GDL is formed after debindering, sintering, coating, deposition of atomic layers (ALD—atomic layer deposition) and further operating steps.
Claims16
-15. (canceled)
A green paper for producing a gas diffusion layer (GDL) for a fuel cell,
- wherein the green paper has at least one first paper web, in which at least one watermark is made, where the watermark forms a patterning for the flow field of the gas diffusion layer produced from the green paper.
A process for producing a green paper for producing a gas diffusion layer (GDL) for a fuel cell,
- wherein at least one first paper web, admixed with metal powder and/or metal fibers, is generated, with at least one watermark being made in the paper web, in order to form a patterning for the flow field of the gas diffusion layer produced from the green paper.
Dependencies are inferred from the claim text.