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:
Jun. 27, 2023

Filed:

Oct. 22, 2020
Applicant:

Lapis Semiconductor Co., Ltd., Yokohama, JP;

Inventors:

Hisao Ohtake, Yokohama, JP;

Koji Suzuki, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/48 (2006.01); H02J 7/00 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 10/482 (2013.01); H01M 10/425 (2013.01); H02J 7/007188 (2020.01); H01M 2010/4271 (2013.01);
Abstract

A cell count determination device is configured to determine a cell count of a battery pack having installed therein a plurality of battery cells. The cell count determination device includes a plurality of switch elements provided in association with the plurality of battery cells, which can be increased or decreased in number in the battery pack. Each of the switch elements is configured to enter a conductive state if, while connected to the battery pack, a corresponding battery cell is present, and enter a non-conductive state if the corresponding battery cell is not present. The cell count determination device further includes a determination unit that is configured to determine the cell count of the connected battery pack on the basis of a combination of conductive states and non-conductive states among the plurality of switch elements.


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