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:
Feb. 22, 2022
Filed:
Apr. 10, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hideyo Ebisuzaki, Toyota, JP;
Yasumasa Oguma, Tokyo-to, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A current collector in which, even in the case of using a copper substrate, an electroconductive layer comprising a thermoplastic resin and an electroconductive material and covering the copper substrate provides the same positive temperature coefficient resistance function as the case of using an aluminum substrate. The current collector may comprise: a copper substrate comprising a copper oxide layer that an average content of an oxygen element present within a thickness of 1.0 μm or less from a surface of the copper substrate, is 10.5 at % or more, and a positive temperature coefficient resistance layer comprising a thermoplastic resin and an electroconductive material and covering the copper oxide layer of the copper substrate.