Printing of catalyst on the membrane of fuel cells
OwnerPhilip Cox, Douglas Diez +2inventors
InventorsPhilip Cox, Douglas Diez, Jonathan Servaites, David L. Olmeijer
Life of this patent
Estimating the term…
Abstract
A method of applying catalytic materials on the membrane of fuel cells using gravure process is provided. In accordance with the method, a catalyst ink comprising catalyst agglomerates with controlled particle size and porosity is formed. The catalyst ink is then applied onto a membrane surface using gravure process to form a catalyst layer having a plurality of three dimensional structural units substantially vertical to the membrane surface.
Claims14
A method of preparing an electrode for an electrical device, comprising:
- forming a catalyst ink comprising catalyst agglomerates with controlled particle size and porosity;
- applying said catalyst ink onto a surface of a membrane to form a catalytic layer comprising a plurality of three dimensional structural units comprising said catalyst agglomerates.
A membrane electrode assembly for an electrical device, comprising:
- a solid electrolyte membrane having a first and a second surfaces;
- an anode catalyst layer formed on said first surface of said membrane;
- and
- a cathode catalyst layer formed on said second surface of said membrane;
- wherein each of said anode and cathode catalyst layers comprises a plurality of three dimensional structural units vertical to said first and second surfaces of said membrane.
Dependencies are inferred from the claim text.