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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.:

US 11942612 B1

PDFFull Text
Date of Patent:
Mar. 26, 2024

Filed:

May. 08, 2019

Battery system

Applicant:

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

Inventors:

Hiroshi Fujikawa, Osaka, JP;

Shinichi Yuasa, Kyoto, JP;

Yoshito Kaga, Osaka, JP;

Keisuke Naito, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

Rimon P.C.

Primary Examiner:

Nha T Nguyen

Int. Cl.
CPC ...
H01M 10/44 (2006.01); B60L 50/60 (2019.01); B60L 53/00 (2019.01); B60L 58/12 (2019.01); B60L 58/26 (2019.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/633 (2014.01); H01M 10/643 (2014.01); H01M 10/647 (2014.01); H01M 10/6556 (2014.01); H01M 10/6568 (2014.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/443 (2013.01); B60L 50/60 (2019.02); B60L 53/00 (2019.02); B60L 58/12 (2019.02); B60L 58/26 (2019.02); H01M 10/48 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/633 (2015.04); H01M 10/643 (2015.04); H01M 10/647 (2015.04); H01M 10/6556 (2015.04); H01M 10/6568 (2015.04); H02J 7/0013 (2013.01); H02J 7/0047 (2013.01); H01M 2220/20 (2013.01);
Abstract

In a battery system, a battery module includes a plurality of cells. A management unit manages charging-discharging of the battery module and a temperature inside the battery module. The management unit estimates a maximum temperature of an inside of a cell in the battery module based on a measured temperature in the battery module, and controls, during charging-discharging of the battery module, a charging-discharging current of the battery module and/or cooling of the battery module in such a way that the estimated maximum temperature does not exceed an upper limit temperature.

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