Battery pack, charging system, and method for charging battery pack
Grant
US12580236B2
Kind: B2
Mar 17, 2026
Assignee
FDK CORPORATION
Inventors
Yasunari Mizoguchi, Yusuke Kusagaya
Abstract
A battery pack is provided in which the battery pack itself can recognize a determination of a full charge, which is made by a charger, without using a communication line. A battery pack is provided with a secondary battery, current measurement means for measuring a charging current for charging the secondary battery, and a control circuit which receives an output signal from the current measurement means. The control circuit determines that the secondary battery is fully charged when a reduction rate of the charging current in a unit time exceeds a predetermined value.
CPC Classifications
H01M 10/4257
H01M 10/44
H01M 10/46
H01M 10/48
H01M 2010/4271
H02J 7/0047
H02J 7/0049
H02J 7/00711
H02J 7/00714
H02J 7/00716
H02J 7/00718
Y02E 60/10
Filing Date
2021-02-04
Application No.
17906066
Claims
8