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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 11165126 B1

PDFFull Text
Date of Patent:
Nov. 02, 2021

Filed:

Aug. 12, 2019

Battery pouch, battery cell and method of making a pouch or battery cell

Applicant:

Techtronic Cordless Gp, Anderson, SC (US);

Inventors:

Denis Gaston Fauteux, Tsuen Wan, HK;

Wing Keung Woo, Tsuen Wan, HK;

Assignee:

TECHTRONIC CORDLESS GP, Anderson, SC (US);

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Olatunji A Godo

Int. Cl.
CPC ...
H01M 50/543 (2021.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/42 (2006.01); H02K 11/30 (2016.01); B25F 5/02 (2006.01); H01M 10/052 (2010.01); H01M 10/48 (2006.01); H02K 7/14 (2006.01); H02K 11/00 (2016.01); H01M 50/116 (2021.01); H01M 50/124 (2021.01); H01M 50/172 (2021.01); H01M 50/209 (2021.01); H01M 50/342 (2021.01); H01M 50/531 (2021.01); H01M 50/557 (2021.01); H01M 50/572 (2021.01); B25B 21/00 (2006.01);
U.S. Cl.
CPC ...
H01M 50/543 (2021.01); B25F 5/02 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/486 (2013.01); H01M 50/116 (2021.01); H01M 50/124 (2021.01); H01M 50/172 (2021.01); H01M 50/209 (2021.01); H01M 50/342 (2021.01); H01M 50/531 (2021.01); H01M 50/557 (2021.01); H01M 50/572 (2021.01); H02K 7/145 (2013.01); H02K 11/0094 (2013.01); H02K 11/30 (2016.01); B25B 21/00 (2013.01); H01M 2200/00 (2013.01); H01M 2220/30 (2013.01);
Abstract

A pouch-type battery comprising: a pouch-type battery case having a joined wall and a cell space within the pouch, a battery cell within the cell space, a terminal tab extending outwardly of the cell space from the battery cell, said joined wall comprising at least a first sealing portion having a first sealing strength, and a second sealing portion having a second sealing strength that is less than the first sealing strength such that the second sealing portion is adapted to fail before said first sealing portion, and an electrical contact located with the second sealing portion and adapted to change contact state upon failure of the second sealing portion.

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