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:
Jan. 10, 2023
Filed:
Aug. 23, 2021
Applicant:
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Inventor:
Ruri Tanaka, Toyota, JP;
Assignee:
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/44 (2006.01); G01R 31/396 (2019.01); H02J 7/00 (2006.01); H01M 10/63 (2014.01); H01M 10/48 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 10/443 (2013.01); G01R 31/396 (2019.01); H01M 10/4285 (2013.01); H01M 10/48 (2013.01); H01M 10/63 (2015.04); H02J 7/0047 (2013.01);
Abstract
An inspection method for a secondary battery includes: constituting a circuit by connecting a charged secondary battery to a power supply; measuring a circuit current flowing through the circuit in association with self-discharge of the secondary battery; and determining the quality of the secondary battery based on a measured value of the circuit current converged in the measuring. During execution of the measuring, a battery temperature control is performed to control the temperature of the secondary battery.