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. 09, 1993
Filed:
Apr. 26, 1991
Applicant:
Inventors:
Gerhard Berger, Ebersbach, DE;
Gabor Benczur-Urmossy, D-Stuttgart, DE;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429215 ; 429223 ; 429222 ; 429198 ;
Abstract
An alkaline nickel-cadmium storage battery in which the active material with which the negative electrode is filled with, or the electrolyte in the storage battery, contains polyvinylpyrrolidone as an expander. Polyvinylpyrrolidone compounds having a mean molecular weight of 5,000 to 35,000 g/mol have proved particularly advantageous.