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. 06, 2002
Filed:
May. 19, 2000
Jürgen Koy, Frankfurt-Höchst, DE;
Bernhard Metz, Kelkheim, DE;
Roland Wagner, Rödermark, DE;
Dieter Bechtold, Bad Vilbel, DE;
NBT GmbH, , DE;
Abstract
The invention relates to negative electrodes for high-energy lithium-ion batteries, which contain Li—Me oxide with Me═Mn, Cr, Ni or Co as active cathode material, and to their production. The electrode composition contains a latex additive based on an acrylic acid derivative copolymer and a polymer binder containing butadiene units. The electrodes are produced by dispersing the carbon black, homogenized with the latex additive, in a solvent and mixing it with the graphite, and by stirring it to form a homogeneous composition, and not incorporating the polymer binder and applying the electrode composition thus obtained to the support substrate until the final stage.