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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 12407056 B1

PDFFull Text
Date of Patent:
Sep. 02, 2025

Filed:

Nov. 13, 2023

Electric energy storage device and electric tool system

Applicant:

Greenworks (Jiangsu) Co., Ltd., Changzhou, CN;

Inventors:

Chuanjun Liu, Changzhou, CN;

An Yan, Changzhou, CN;

Assignee:

Greenworks (Jiangsu) Co., Ltd., Changzhou, CN;

Attorney:
Primary Examiner:

M Baye Diao

Int. Cl.
CPC ...
H01M 50/269 (2021.01); B25F 5/00 (2006.01); B25F 5/02 (2006.01); H01M 10/04 (2006.01); H01M 10/42 (2006.01); H01M 10/46 (2006.01); H01M 50/204 (2021.01); H01M 50/247 (2021.01); H01M 50/50 (2021.01); H01M 50/509 (2021.01); H01M 50/519 (2021.01); H01M 50/543 (2021.01); H01R 13/05 (2006.01); H01R 13/11 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 50/269 (2021.01); B25F 5/00 (2013.01); B25F 5/02 (2013.01); B25F 5/023 (2013.01); H01M 10/0445 (2013.01); H01M 10/4207 (2013.01); H01M 10/46 (2013.01); H01M 50/204 (2021.01); H01M 50/247 (2021.01); H01M 50/50 (2021.01); H01M 50/509 (2021.01); H01M 50/519 (2021.01); H01M 50/543 (2021.01); H01R 13/05 (2013.01); H01R 13/113 (2013.01); H02J 7/0024 (2013.01); H02J 7/0063 (2013.01); H01M 2220/30 (2013.01);
Abstract

An electric energy storage device which includes four energy units with a substantially same voltage value is provided. Each energy unit is provided with a positive electrode and a negative electrode. The electric energy storage device comprises a socket with eight independently arranged electrode terminals that are connected with the four energy units. The disclosure also provides an electric tool system using the electric energy storage device. The electric tool is provided with plugs that may be connected with the four energy units in different states, allowing the electric energy storage device to output multiple voltages.

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