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.

Date of Patent:
Dec. 24, 2024

Filed:

Apr. 10, 2023
Applicant:

Ningde Amperex Technology Limited, Ningde, CN;

Inventor:

Jing Jiang, Ningde, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/78 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0587 (2010.01); H01M 50/40 (2021.01); H01M 50/46 (2021.01); H01M 50/531 (2021.01); H01M 50/595 (2021.01); H01M 50/586 (2021.01);
U.S. Cl.
CPC ...
H01M 4/78 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 10/0587 (2013.01); H01M 50/40 (2021.01); H01M 50/46 (2021.01); H01M 50/531 (2021.01); H01M 50/595 (2021.01); H01M 50/586 (2021.01);
Abstract

A cell includes a first current collector and a second current collector. A tail end of the first current collector exceeds a tail end of the second current collector by at least half a circle in a winding direction. The tail end of the first current collector does not include an active material and is bonded on an outer peripheral surface of an outermost circle of the first current collector by a first adhesive, the first adhesive is a double-sided tape or a hot melt adhesive. The cell is bonded with another double-sided tape or another hot melt adhesive on a side opposite from the tail end of the first current collector.


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