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:
Jul. 14, 2026
Filed:
Sep. 18, 2024
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
Zhenguo Zhang, Ningde, CN;
Sihui Wang, Ningde, CN;
Jingpeng Fan, Ningde, CN;
Yutong Liu, Ningde, CN;
Na Liu, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
The present application provides a lithium nickel manganese-containing composite oxide, a preparation method thereof, and a positive electrode plate, a secondary battery and an electrical device. The lithium nickel manganese-containing composite oxide is a particle with a monocrystal morphology or a quasi-monocrystal morphology, the lithium nickel manganese-containing composite oxide has a spherical or spherical-like grain shape, and the lithium nickel manganese-containing composite oxide has a general formula of LiNiMMnAO, −0.2≤x≤0.5, −0.2≤y≤0.2, 0≤z≤0.2, 0<a≤0.2, 0≤k≤0.2, A includes one or more selected from Si, P and S, M includes one or more selected from a metal-doping element. The lithium nickel manganese-containing composite oxide provided in the present application may improve the capacity exertion, energy density and cycling life of the secondary battery.