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:
Feb. 18, 1997
Filed:
Feb. 16, 1996
Applicant:
Inventors:
W Richard Brown, Clarence Center, NY (US);
Sally A Smesko, North Tonawanda, NY (US);
Esther S Takeuchi, East Amherst, NY (US);
Assignee:
Wilson Greatbatch Ltd., Clarence, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429176 ; 429101 ; 429211 ;
Abstract
Heat treating the inner, contact surface of an electrochemical cell casing in an oxidizing atmosphere such as air to render the inner surface thereof essentially contamination free and suitable as a current collector, is described. The casing is preferably of stainless steel and houses the alkali metal-halogen couple in a case-positive configuration. The oxidized cases are ready for cell assembly upon cooling and cell electrical performance is maintained without the need for wet chemical treatment of any kind.