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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 12113378 B1

PDFFull Text
Date of Patent:
Oct. 08, 2024

Filed:

May. 26, 2023

Large-format battery management system with state of charge balancing

Applicant:

Inventus Power, Inc., Woodridge, IL (US);

Inventors:

Jianfei Liu, Guangdong Province, CN;

Jujie Xia, Guangdong Province, CN;

Youwu Chen, Guangdong Province, CN;

Huizhi Chen, Guangdong Province, CN;

Wenhua Li, Guangdong Province, CN;

Ke Yan, Guangdong Province, CN;

Changda Guan, Guangdong Province, CN;

Zibin Cheng, Guangdong Province, CN;

William Tenorio, Glenview, IL (US);

Daniel Kang, Elk Grove Village, IL (US);

Chris Turner, Dublin, OH (US);

Assignee:

Inventus Power, Inc., Woodridge, IL (US);

Attorney:

Banner & Witcoff, Ltd.

Primary Examiner:

Edward Tso

Int. Cl.
CPC ...
H01M 10/44 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/46 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/00032 (2020.01); H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/4257 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H02J 7/0013 (2013.01); H02J 7/0014 (2013.01); H02J 7/0029 (2013.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01); H02J 7/0063 (2013.01); H02J 7/007 (2013.01); H02J 7/00712 (2020.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01);
Abstract

A battery system with a large-format Li-ion battery powers attached equipment by discharging battery cells distributed among a plurality of battery packs. The discharging of the battery cells is controlled in an efficient manner while preserving the expected life of the Li-ion battery cells. Each battery pack internally supports a battery management system and may have identical components, thus supporting an architecture that easily scales to higher power/energy. Battery packs may be added or removed without intervention with a user, where one of battery packs serves as a master battery pack and the remaining battery packs serve as slave battery packs. When the master battery pack is removed, one of the slave battery packs becomes the master battery pack. Charging and discharging of the battery cells is coordinated by the master battery pack with the slave battery packs over a communication channel such as a controller area network (CAN) bus.

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