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:
Nov. 12, 2024
Filed:
Aug. 24, 2022
Toyota Jidosha Kabushiki Kaisha, Toyota Aichi-ken, JP;
Jinnai Industries Inc., Toyota Aichi-ken, JP;
Tomohiro Sekiya, Toyota Aichi-ken, JP;
Kensaku Miyazawa, Toyota Aichi-ken, JP;
Kazuo Tojima, Toyota Aichi-ken, JP;
Hitoshi Nakamura, Toyota Aichi-ken, JP;
Haruyoshi Sakakibara, Toyota Aichi-ken, JP;
Yasutaka Terashima, Toyota Aichi-ken, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota Aichi-ken, JP;
JINNAI INDUSTRIES INC., Toyota Aichi-ken, JP;
Abstract
A method for evaluating an electric power storage device includes causing a short circuit by inserting an electrically conductive probe into a stacked portion in a thickness direction of electrode layers; measuring a penetration depth of the probe after the short circuit occurs; and evaluating the number of electrode layers involved in the short circuit based on the penetration depth. The penetration depth is identified by measuring a length of an adhesion portion in an axial direction of the probe. The adhesion portion is a portion of a surface of the probe to which a constituent material of the stacked portion adheres.