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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 12782458 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Jun. 21, 2024

Battery monitoring device, and battery management unit

Applicant:

Denso Corporation, Kariya-city, JP;

Inventors:

Satoru Shimizu, Kariya-city, JP;

Kazuaki Mawatari, Kariya-city, JP;

Kazuyuki Ono, Kariya-city, JP;

Kumiko Kawabata, Kariya-city, JP;

Hiroshige Matsui, Kariya-city, JP;

Assignee:

DENSO CORPORATION, Kariya-city, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Alesa Allgood

Int. Cl.
CPC ...
G01R 31/36 (2020.01); G01R 31/374 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/63 (2014.01); H01M 10/6571 (2014.01); H02J 7/80 (2026.01); B60L 58/10 (2019.01);
U.S. Cl.
CPC ...
G01R 31/392 (2019.01); G01R 31/374 (2019.01); G01R 31/389 (2019.01); H01M 10/0525 (2013.01); H01M 10/4285 (2013.01); H01M 10/486 (2013.01); H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/6571 (2015.04); H02J 7/80 (2026.01); B60L 58/10 (2019.02);
Abstract

A battery monitoring device monitors a lithium precipitation amount in a lithium ion battery. The battery monitoring device includes a precipitation amount detection unit that has a short circuit for discharging the lithium ion battery by temporarily shorting both ends of the lithium ion battery. The lithium precipitation amount detection unit calculates an estimation value of the lithium precipitation amount based on a change in at least one of current or voltage when both the ends of the lithium ion battery is shorted by the short circuit. The battery monitoring device includes a temperature sensor that detects a battery temperature of the lithium ion battery.

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Quick Actions:

Shimizu, Satoru. (2026). Battery monitoring device, and battery management unit (U.S. Patent No. 12782458). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12782458

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