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:
May. 14, 2019
Filed:
Sep. 14, 2017
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Qifeng Li, Ningde, CN;
Dingshan Ruan, Ningde, CN;
Wei Liang, Ningde, CN;
Na Liu, Ningde, CN;
Long Wang, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
The present application relates to the technical field of Li-ion battery and, more particularly, to a positive electrode material for a Li-ion battery, a method for preparing the same, and a Li-ion battery containing the same. The positive electrode material for a Li-ion battery includes a substrate material and a coating layer coated on a surface of the substrate material, wherein the coating layer includes boron, a chemical formula of the substrate material is LiNiCoMnO, wherein 0.99<x≤1.1, 0.3<a<0.9, 0.1<b<0.4, 0.1<c<0.4, and a+b+c=1; and the substrate material consists of a large particle substrate material and a small particle substrate material. In the present application, by gradation of large particles and small particles, the pellet density, the capacity density, the room-temperature cycle performance, the high-temperature cycle performance and low temperature discharging performance of the Li-ion battery are improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile