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:
Jul. 25, 2023
Filed:
Jul. 24, 2018
Koki Holdings Co., Ltd., Tokyo, JP;
Yasushi Nakano, Ibaraki, JP;
Satoshi Yamaguchi, Ibaraki, JP;
Hiroyuki Hanawa, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Tomomasa Nishikawa, Ibaraki, JP;
Shota Kanno, Ibaraki, JP;
Toshio Mizoguchi, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
A battery pack which has cell units in which top-side and bottom-side battery cells are connected in series, and is capable of switching the connection state of the cell units, wherein a control unit monitors voltage imbalances between the plurality of cell units, and also monitors whether or not a cell unit contact failure has occurred. In order to stop a charging/discharging when a contact failure occurs, a signal (abnormality stoppage signal or charging stoppage signal) for stopping discharge is produced and outputted to the electrical device body-side.