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:
Oct. 24, 2023
Filed:
Feb. 28, 2018
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Tetsuya Mitsumoto, Takehara, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
Provided is 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 metal Li reference potential, wherein the composite oxide is able to improve cycle characteristics while suppressing the amount of gas generated under high temperature environments and, moreover, to improve output characteristics while suppressing a shoulder on discharge at around 4.1 V in a charge and discharge curve. The spinel type lithium nickel manganese-containing composite oxide is represented by a general formula [Li(LiNiMnTiMgM)O] (where 0<a, 0<b, 0.30≤y<0.60, 0<z, 0≤α, x=2−a−b−y−z−α<1.7, 3≤b/a≤8, 0.11<b+z+α, 0<z/b<1, 0≤δ≤0.2, and M represents one or two or more elements selected from the group consisting of Fe, Co, Ba, Cr, W, Mo, Y, Zr, Nb, P, and Ce).