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:
Nov. 25, 2025
Filed:
Feb. 13, 2023
Applicants:
Stephan Draese, Nettetal, DE;
Thomas Graf, Bonn, DE;
Oliver Seiferth, Köln-Zündorf, DE;
Volker Schmitz, Rommerskirchen, DE;
Inventors:
Stephan Draese, Nettetal, DE;
Thomas Graf, Bonn, DE;
Oliver Seiferth, Köln-Zündorf, DE;
Volker Schmitz, Rommerskirchen, DE;
Assignee:
Speira GmbH, Grevenbroich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/66 (2006.01); B21B 1/40 (2006.01); B21B 3/00 (2006.01); B21B 45/02 (2006.01); H01M 4/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/662 (2013.01); B21B 1/40 (2013.01); B21B 45/0239 (2013.01); H01M 4/0404 (2013.01); H01M 4/667 (2013.01); B21B 2003/001 (2013.01);
Abstract
An aluminum foil is formed from an alloy of type AA1xxx, AA3xxx, and/or AA8xxx, which has a cold-solidified state and contains on its surface a rolling oil layer with a polyalkylene glycol or a compound containing a polyalkylene oxide structure. The aluminum foil has a thickness of 4 μm to 100 μm and can be easily coated with an electrode suspension for producing a battery film.