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:
Jan. 02, 2007
Filed:
May. 22, 2002
Thomas Wöhrle, Ellwangen, DE;
Peter Birke, Ellwangen, DE;
Heinrich Stelzig, Rosenberg, DE;
Konrad Holl, Aalen-Dewangen, DE;
Dejan Llic, Ellwangen, DE;
Thomas Wöhrle, Ellwangen, DE;
Peter Birke, Ellwangen, DE;
Heinrich Stelzig, Rosenberg, DE;
Konrad Holl, Aalen-Dewangen, DE;
Dejan llic, Ellwangen, DE;
Microbatterie GmbH, , DE;
Abstract
A method for producing electrode sheets for electrochemical elements which contain at least one lithium-intercalating electrode which is composed of a mixture of at least two copolymerized fluorized polymers in whose polymer matrix electrochemically active materials which are insoluble in the polymer are finely dispersed, the fluorized polymers are, having being dissolved as a solvent, mixed with electrochemically active materials, the resulting pasty substance is extruded to form a sheet and then laminated with a polyolefin separator, which is provided with a mixture of the two polymers, PVDF-HFP copolymers in each case being used as the polymer, and the proportion of HFP being less than about 8 percent by weight.