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:
May. 30, 2023
Filed:
Nov. 11, 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:
Int. Cl.
CPC ...
G01R 31/382 (2019.01); G01R 31/392 (2019.01); H01M 10/44 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
G01R 31/382 (2019.01); G01R 31/392 (2019.01); H01M 10/44 (2013.01); H01M 10/0525 (2013.01);
Abstract
A method for inspecting self-discharge of a power storage device includes: a) continuously applying a continuous power-supply voltage to the power storage device that has been charged in advance from an external power supply to a first device voltage), the continuous power-supply voltage being higher than the first device voltage and having a constant magnitude; b) detecting a power-supply current flowing from the external power supply to the power storage device; and c) determining a self-discharge state of the power storage device based on the detected power-supply current.