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.:
Date of Patent:
Jul. 14, 2026
Filed:
Jun. 14, 2022
Applicant:
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute, JP;
Inventors:
Keisuke Ishikawa, Nagakute, JP;
Masanori Ishigaki, Nagakute, JP;
Assignee:
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, Nagakute, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/396 (2019.01); H01M 10/48 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/396 (2019.01); H01M 10/488 (2013.01); H01M 10/0525 (2013.01);
Abstract
A detection device includes a detector and a controller. The detector has at least one resonator circuit applying at least one specific frequency vibration to a lithium-ion secondary battery, measures an attenuation characteristic of at least one resonant current, and outputs the attenuation characteristic as a detection signal. The controller detects lithium deposition and/or presence of foreign metal inside the lithium-ion secondary battery by using the detection signal of the attenuation characteristic acquired from the detector.