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:
Mar. 20, 2018
Filed:
Aug. 22, 2016
Jiangsu Huadong Institute of Li-ion Battery Co., Ltd., Suzhou, Jiangsu, CN;
Tsinghua University, Beijing, CN;
Zhong-Jia Dai, Beijing, CN;
Xiang-Ming He, Beijing, CN;
Li Wang, Beijing, CN;
Jian-Jun Li, Beijing, CN;
Yu-Ming Shang, Beijing, CN;
Jian Gao, Beijing, CN;
Yao-Wu Wang, Beijing, CN;
Jiangsu Huadong Institute of Li-ion Battery Co. Ltd., Suzhou, CN;
Tsinghua University, Beijing, CN;
Abstract
A method for making a cathode active material of a lithium ion battery is disclosed. In the method, LiMPOparticles and LiNPOparticles are provided. The LiMPOparticles and LiNPOparticles both are olivine type crystals belonged to a pnma space group of an orthorhombic crystal system, wherein M represents Fe, Mn, Co, or Ni, N represents a metal element having a +2 valence, and N is different from M. The LiMPOparticles and the LiNPOparticles are mixed together to form a precursor. The precursor is calcined to form LiMNPOparticles, wherein 0<x<1.