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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 11171330 B1

PDFFull Text
Date of Patent:
Nov. 09, 2021

Filed:

Aug. 01, 2019

Battery cell with increased tab area and method and apparatus for manufacturing same

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Chih-Cheng Hsu, Bloomfield Township, MI (US);

Sherman H. Zeng, Troy, MI (US);

Assignee:

GM Global Technology Operations LLC, Detroit, MI (US);

Attorney:

Quinn IP Law

Primary Examiner:

Imran Akram

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/70 (2006.01); H01M 2/26 (2006.01); H01M 10/0525 (2010.01); H01M 4/13 (2010.01); B60L 50/64 (2019.01); H01M 10/46 (2006.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H02J 7/14 (2006.01); H01M 4/66 (2006.01); B60L 53/24 (2019.01); H01M 50/531 (2021.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); B60L 50/64 (2019.02); B60L 53/24 (2019.02); H01M 4/0404 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 4/667 (2013.01); H01M 4/70 (2013.01); H01M 10/0525 (2013.01); H01M 10/46 (2013.01); H01M 50/531 (2021.01); H02J 7/14 (2013.01); H01M 4/661 (2013.01); H01M 4/662 (2013.01);
Abstract

A method of forming batteries includes feeding a foil through a coating machine. The movement of the foil defines a foil direction. The method applies a first coating band and a second coating band to the foil. The second coating band is spaced from the first coating band by a first tab gap. The foil is cut substantially perpendicular to the foil direction to separate a first coated blank. The first coated blank is cut separate the first coating band and a first portion of the first tab gap, and to separate the second coating band and a second portion of the first tab gap. A first electrode is formed from the first coating band and the first portion of the first tab gap, and a second electrode is formed from the second coating band and the second portion of the first tab gap.

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