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:
Sep. 09, 2025
Filed:
Nov. 27, 2019
Tdk Corporation, Tokyo, JP;
Kazumasa Tanaka, Tokyo, JP;
Tomohiro Yano, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
An all-solid-state lithium secondary battery includes a laminated body which has a positive electrode layer including a positive electrode current collector layer and a positive electrode active material layer, a negative electrode layer including a negative electrode current collector layer and a negative electrode active material layer, a solid electrolyte layer containing a solid electrolyte, and a margin layer that is disposed side by side with each of the positive electrode layer and the negative electrode layer and contains a solid electrolyte, in which the positive electrode layer and the negative electrode layer are alternately laminated with the solid electrolyte layer containing the solid electrolyte interposed therebetween, and the laminated body includes metal particles having an oxide film in the positive electrode active material layer, the negative electrode active material layer, the solid electrolyte layer, and the margin layer.