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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.:

US 11233264 B1

PDFFull Text
Date of Patent:
Jan. 25, 2022

Filed:

Sep. 06, 2017

Button cells and method of producing same

Applicant:

Varta Microbattery Gmbh, Ellwangen, DE;

Inventors:

Eduard Pytlik, Ellwangen, DE;

Jürgen Lindner, Ellwangen, DE;

Ulrich Barenthin, Ellwangen, DE;

Winfried Gaugler, Ellwangen, DE;

Assignee:

VARTA MICROBATTERY GMBH, Ellwangen, DE;

Attorney:

Leydig, Voit & Mayer, Ltd.

Primary Examiner:

Cynthia H Kelly

Assistant Examiner:

Julian Anthony

Int. Cl.
CPC ...
H01M 4/00 (2006.01); H01M 6/10 (2006.01); H01M 6/12 (2006.01); H01M 6/46 (2006.01); H01M 2/02 (2006.01); H01M 6/08 (2006.01); H01M 2/08 (2006.01); H01M 4/64 (2006.01); H01M 4/66 (2006.01); H01M 10/04 (2006.01); H01M 10/05 (2010.01); H01M 10/24 (2006.01); H01M 10/34 (2006.01); H01M 50/109 (2021.01); H01M 50/124 (2021.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0431 (2013.01); H01M 6/10 (2013.01); H01M 10/0427 (2013.01); H01M 10/05 (2013.01); H01M 10/0525 (2013.01); H01M 10/24 (2013.01); H01M 10/34 (2013.01); H01M 10/345 (2013.01); H01M 50/109 (2021.01); H01M 50/124 (2021.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11); Y10T 29/4911 (2015.01); Y10T 29/49108 (2015.01);
Abstract

A rechargeable button cell including a housing half-parts comprising a housing cup and a housing top separated from one another by an electrically insulating seal or film seal is disclosed. The button cell includes an electrode-separator assembly within the housing having a positive and a negative electrode in the form of flat layers connected to one another by a porous plastic film separator. The electrodes each include a metallic film or mesh embedded in a respective electrode material as a current collector, which acts as an output conductor that connects the electrodes to one of the flat bottom or flat top areas of the housing.

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