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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 12401046 B1

PDFFull Text
Date of Patent:
Aug. 26, 2025

Filed:

Jan. 22, 2025

Negative current collector, preparation method of the same, sodium secondary battery, and electrical device

Applicant:

Hithium Tech HK Limited, HongKong, CN;

Inventors:

Kongyao Chen, Guangdong, CN;

Shiwen Wang, Guangdong, CN;

Renjie Qu, Guangdong, CN;

Genghong Huang, Guangdong, CN;

Xing Zhang, Guangdong, CN;

Jie Zhang, Guangdong, CN;

Assignee:

Hithium Tech HK Limited, Hongkong, CN;

Attorneys:

WSP Law Group

RICHARD SWOPE

MICHAEL WIERSCH

SHAHAM PARVIN

Primary Examiner:

Stephan J Essex

Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/02 (2006.01); H01M 10/054 (2010.01);
U.S. Cl.
CPC ...
H01M 4/667 (2013.01); H01M 4/663 (2013.01); H01M 10/054 (2013.01); H01M 2004/027 (2013.01);
Abstract

The present application provides a negative current collector and a preparation method thereof, a sodium secondary battery, and an electrical device. The negative current collector includes a matrix and a functional layer disposed on at least one side of the matrix and includes a multifunctional additive. The multifunctional additive includes NaMN*zHO, where: M includes an atom capable of forming an alloy with Na; N includes at least one of atom O, atom S, or atom Se; and 0<x≤5, 0<y≤5, and 0≤z≤5.

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Chen, Kongyao. (2025). Negative current collector, preparation method of the same, sodium secondary battery, and electrical device (U.S. Patent No. 12401046). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12401046

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