Fuel cell
AssigneePlansee Composite Materials GmbH
InventorsThomas Franco, Markus Haydn, Markus Koegl, Matthias Ruettinger, Gebhard Zobl
Life of this patent
Estimating the term…
Abstract
A plate-shaped, porous, carrier substrate produced by powder metallurgy for a metal-supported electrochemical functional device, includes a marginal region and a central region with a surface configured to receive a layer stack with electrochemically active layers on a cell-facing side of the carrier substrate. A surface section of the marginal region has a melt phase of the carrier substrate material on the cell-facing side of the carrier substrate. At least sections of a region located beneath the surface section having the melt phase have a higher porosity than the surface section disposed above them and having the melt phase.
Claims17
1-15. (canceled)
A plate-shaped, porous, metallic carrier substrate produced by powder metallurgy for a metal-supported electrochemical functional device, the carrier substrate comprising:
- a cell-facing side of the carrier substrate and a material of the carrier substrate;
- a central region having a surface configured to receive a layer stack with electrochemically active layers on said cell-facing side of the carrier substrate;
- a marginal region having a surface section on the cell-facing side of the carrier substrate, said surface section having a melt phase of the carrier substrate material;
- and
- a region located beneath said surface section having said melt phase, at least sections of said region located beneath said surface section having a higher porosity than said surface section disposed above said sections of said region.
A method for producing a carrier substrate for a metal-supported, electrochemical functional device, the method comprising the following steps:
- powder-metallurgically producing a plate-shaped carrier substrate having a cell-facing side, a central region with a surface and a marginal region, the surface of the central region being configured to receive a layer stack with electrochemically active layers on the cell-facing side of the carrier substrate;
- and
- after-treating at least a part of the marginal region, on the cell-facing side of the carrier substrate, by local, superficial melting.
Dependencies are inferred from the claim text.