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:
Jun. 03, 2025
Filed:
Oct. 03, 2017
Toyo Kohan Co., Ltd., Tokyo, JP;
TOYO KOHAN CO., LTD., Tokyo, JP;
Abstract
[Object] To provide a current collector for battery, having a strength sufficient to suppress breakage and tears during production feared in association with thinning, and a battery having the current collector. [Solving Means] The current collector for battery according to the present invention has at least a first metal layer containing at least a metal selected from Cu, Fe, and Ni, and a second metal layer laminated on the first metal layer and containing at least a metal selected from Cu, Fe, and Ni other than the metal of the first metal layer. One of the first metal layer and the second metal layer contains the Ni, and a laminate interface between the first metal layer and the second metal layer has a roughness Ra≥0.12.