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.:
Date of Patent:
Aug. 27, 2024
Filed:
Aug. 01, 2019
Sanyo Electric Co., Ltd., Daito, JP;
Shimpei Yamagami, Osaka, JP;
PANASONIC ENERGY CO., LTD., Moriguchi, JP;
Abstract
A charging system for a secondary battery capable of minimizing a reduction in the capacity retention rate and the charge-discharge efficiency of a secondary battery. A charging system according to an aspect of the present disclosure includes a secondary battery, a charger that charges the secondary battery, a unit that calculates a charge capacity of the secondary battery, and a charge control unit that controls the charger to perform a first charging step of charging the secondary battery until a first voltage is reached, and a second charging step of charging the secondary battery at a constant voltage of the first voltage. The charge control unit terminates charging when the charge capacity of the secondary battery reaches a charge termination capacity set in a range less than a full charge capacity that is based on the first voltage of the secondary battery.