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:
Aug. 05, 2008
Filed:
Sep. 06, 2002
Wolffried Wenneis, Mannheim, DE;
Harald Hoffmann, Dossenheim, DE;
Birgit Severich, Viernheim, DE;
Hartwig Höcker, Aachen, DE;
Helmut Keul, Aachen, DE;
Wolffried Wenneis, Mannheim, DE;
Harald Hoffmann, Dossenheim, DE;
Birgit Severich, Viernheim, DE;
Hartwig Höcker, Aachen, DE;
Helmut Keul, Aachen, DE;
Carl Freudenberg KG, Weinheim, DE;
Abstract
An alkaline cell or battery having at least one positive and one negative electrode which are separated by a separator and which are disposed, along with an alkaline electrolyte, in a housing, the separator being a non-woven fabric, a microporous foil, or a web made of one or a plurality of polymers, which are formed by copolymerization or grafting through reactive extrusion, and which have functional groups in the molecule or form them in the alkaline electrolyte, the functional groups being active as Lewis acids.