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:
Aug. 11, 2020
Filed:
Aug. 07, 2018
Ningde Amperex Technology Limited, Ningde, Fujian, CN;
Ningde Amperex Technology Limited, Ningde, CN;
Abstract
The examples of the present application provide a positive electrode material and a lithium-ion battery. The positive electrode material comprises: a substrate material; and a coating material formed on at least one part of a surface of the substrate material; the general formula of the substrate material being LiCoMO, wherein 1.0≤x≤1.2, 0.8≤y≤1.0 and M is at least one selected from the group consisting of Mg, Ti, Al, Zr, Ni, Mn; the coating material includes YOand at least two selected from the group consisting of LaO, ZrOand CeO. The examples of the present application enable the battery prepared by the provided positive electrode material to have a lower storage expansion ratio, a higher capacity retention ratio, and improved cycle performance at a high charge cutoff voltage by the interaction of at least three kinds of oxides.