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:
Mar. 25, 2025

Filed:

Jul. 21, 2020
Applicant:

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

Inventor:

Yusuke Itakura, Nara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 50/583 (2021.01);
U.S. Cl.
CPC ...
H01M 10/425 (2013.01); H01M 10/48 (2013.01); H01M 50/583 (2021.01); H01M 2010/4271 (2013.01);
Abstract

In a management device that manages a power storage module in which a plurality of cell blocks in which a plurality of cells are connected in parallel are connected in series, a voltage detector detects a voltage of each of the plurality of cell blocks connected in series. The controller calculates a change value of a voltage of each of the plurality of cell blocks for a certain period of time, integrates absolute values of calculated voltage change values for each of the cell blocks, and determines presence or absence of a cell block including a separated cell that is electrically separated based on an integration value of voltage changes for each of the plurality of cell blocks.


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