Fuel cell, a fuel cell electrode, and a method for making a fuel cell electrode
Patent
·
OSTI ID:5314100
This patent describes a process for applying a catalyst layer to a surface of a porous substrate to form a fuel cell electrode. The substrate having an upper surface and a lower surface. It comprises: contacting the upper surface of the substrate with a mixture comprising a hydrophobic polymer and a catalyst; and establishing a selected distribution of reduced pressure over the lower surface of the porous substrate to cause the mixture to be deposited in layer of non-uniform thickness on the upper surface of the porous substrate. the thickness increasing along one axis of the upper surface so that the electrode has a catalyst loading per unit area of the upper surface that increases along the one axis.
- Assignee:
- International Fuel Cells Corp., South Windsor, CT
- Patent Number(s):
- US 4851377
- Application Number:
- PPN: US 7182267A
- OSTI ID:
- 5314100
- Country of Publication:
- United States
- Language:
- English
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