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. 16, 2019
Filed:
Sep. 16, 2016
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
Relating to a 5 V-class spinel type lithium nickel manganese-containing composite oxide having an operating potential of 4.5 V or more with respect to a Li metal reference potential, the present invention proposes a composite oxide being capable of improving cycle properties while suppressing the amount of gas generation under high temperature environments and of increasing thermodynamical stability of a positive electrode in a fully charged state. Proposed is a spinel type lithium nickel manganese-containing composite oxide represented by a general formula [Li(LiNiMnTiAlM)O] (where 0<a, 0<b, 0.30≤y<0.60, 0<z, 0≤α, 2-a-b-y-z-α<1.7, 3≤b/a≤8, 0.1<b+z+α, 0<z/b≤1, and M represents one or two or more metal elements selected from the group consisting of Mg, Fe, Co, Ba, Cr, W, Mo, Y, Zr, Nb, and Ce).