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. 29, 1983
Filed:
Oct. 15, 1980
Applicant:
Inventors:
Eckart Buder, Kriftel, DE;
Friedrich-Wilhelm Busemann, Hagen, DE;
Assignee:
Varta Batterie A.G., Hanover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
2521821 ; 427123 ; 429 60 ;
Abstract
Negative sintered foil electrodes for gas-tight Ni/Cd storage batteries can be provided with a specific discharge reserve by subjecting them to a partial chemical reduction before they are installed. This is performed upon the moving, impregnated sinter tape by immersing it in or spraying it with a strongly reducing agent dissolved in water or any other solvent, preferably alkali boranate. In a subsequent drying step, the Cd so formed is permanently fixed and protected through intentional surface oxidation.