The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1999
Filed:
May. 11, 1998
Applicant:
Inventors:
Robert Gregory Fournier, Burton, MI (US);
Frederick Lincoln Kennard, III, Holly, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419-9 ; 419 10 ;
Abstract
The invention is related to a method of manufacturing a platinium electrode that has high porosity and current density of above 10 mA/cm2. The method comprises adding particles of a high temperature fugitive material such as carbon to the platinum ink, and subjecting the mixture to high temperature sintering to remove carbon powder thereby leaving small voids in the platinum.