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:
Dec. 10, 1991
Filed:
Sep. 08, 1988
Applicant:
Inventor:
Calvin L Bushnell, Glastonbury, CT (US);
Assignee:
International Fuel Cells Corporation, South Windsor, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429 13 ; 429 16 ; 429 40 ; 429 44 ;
Abstract
Gaps occurring between a cathode substrate and a gas housing in a fuel cell interfere with electron transfer in the cell causing high cell internal resistance. To reduce the high resistance gaps are closed by coating the substrate with metal powder that expands during oxidation closing the gaps.