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. 15, 2019
Filed:
Apr. 14, 2015
Suzhou Sunmun Technology Co., Ltd., Kunshan, CN;
Borong Wu, Beijing, CN;
Linjing Zhang, Beijing, CN;
Ning Li, Beijing, CN;
Qi Liu, Beijing, CN;
Feixiang Guo, Beijing, CN;
Daobin Mu, Beijing, CN;
Feng Wu, Beijing, CN;
Chuan Wu, Beijing, CN;
Shi Chen, Beijing, CN;
SUZHOU SUNMUM TECHNOLOGY CO., LTD., Kunshan, Jiangsu, CN;
Abstract
The present invention discloses a method for preparing lithium-rich manganese-based cathode material. The method comprises: dispersing α-MnOmicron particles, a nickel salt and a lithium-containing compound in a solvent to obtain a mixture, then evaporating the mixture to remove the solvent, and calcining the solid product obtained from the evaporation; wherein the lithium-containing compound is a lithium salt and/or lithium hydroxide. The present invention also provides a lithium-rich manganese-based cathode material prepared by the above method. The present invention also provides a lithium-ion battery of which anode material contains the foregoing lithium-rich manganese-based anode material. The lithium-rich manganese-based cathode material provided by the present invention has high rate capability and prolonged cycle stability.