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. 18, 2025
Filed:
Mar. 02, 2020
Aesc Japan Ltd., Zama, JP;
AESC JAPAN LTD., Zama, JP;
Abstract
Provided is a positive electrode for a lithium ion secondary battery including a metal foil () (current collector), a first mixture layer () which is provided on one surface of the metal foil () and contains a positive electrode active material, and a second mixture layer () which is partially covered by the first mixture layer () and includes, as a main component, particles different from the active material, in which the second mixture layer () is provided on one end () side of the first mixture layer () in a boundary portion between a formed area of the first mixture layer () and a non-formed area of the first mixture layer (), one end () of the second mixture layer () is positioned between the one surface of the metal foil () and a lower surface of the first mixture layer () in the formed area of the first mixture layer (), and the other end () is positioned in the non-formed area, and the first mixture layer () and the second mixture layer () contain a dispersed conductive substance.