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:
Apr. 21, 2020
Filed:
Feb. 21, 2017
Tdk Corporation, Tokyo, JP;
Tetsu Syoji, Tokyo, JP;
Hideaki Seki, Tokyo, JP;
Hirofumi Kakuta, Tokyo, JP;
Shin Fujita, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A positive electrode includes: a positive electrode current collector; and a positive electrode active material layer disposed on the positive electrode current collector. The positive electrode active material layer contains a lithium-containing transition metal oxide represented by composition formula (1) indicated below, and a compound represented by LiVOPO4. The lithium-containing transition metal oxide and the compound represented by LiVOPO4 are dispersed in the positive electrode active material layer.LiNiCoAlO2  (1)where 0.9≤t≤1.1, 0.3<x<0.99, 0.01<y<0.4, 0.001<z<0.2, and x+y+z=1.