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:
Oct. 08, 2024

Filed:

Mar. 31, 2021
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Masaki Ikeda, Mie, JP;

Tatsuya Miwa, Mie, JP;

Yu Ota, Mie, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/44 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0024 (2013.01); H02J 7/00036 (2020.01); H02J 7/00302 (2020.01); H02J 7/0047 (2013.01); H02J 7/0071 (2020.01); H02J 7/00711 (2020.01); H02J 7/00712 (2020.01); H02J 7/00714 (2020.01); H02J 7/007182 (2020.01); H01M 10/441 (2013.01); H02J 7/0013 (2013.01);
Abstract

A charging system is configured to charge a battery pack including one or more battery cells. The charging system includes an acquirer and a controller. The acquirer is configured to acquire, as an acquisition voltage, a voltage between terminals or a cell voltage of each of the one or more battery cells in the battery pack which is being charged. The controller is configured to, when the voltage between the terminals or the cell voltage reaches a target voltage, cause a first charging mode allowing fast charging to transition to a second charging mode in which a charge current is lower than in the first charging mode. The controller is configured to stop charging operation when the acquisition voltage acquired by the acquirer decreases and an aspect of a decrease in the acquisition voltage satisfies a predetermined condition in the second charging mode.


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