Abstract: Described herein are solid solution composites that are used as cathode materials for lithium-ion batteries. The solid solution composite of ? LiMVO4-?LiNi1-x-yCoxMnyO2, in which LiMVO4 has cubic close-packed structure, LiNi1-x-yCoxMnyO2 has hexagonal layered structure, and both share an oxygen lattice fully or partly. The new solid solution materials have advantage for lithium-ion batteries that the working voltage of the composite is adjustable by controlling the molar ratio of ? and ? and have higher working voltage than current secondary battery materials. Also described herein are methods of preparing such composite.
Type:
Grant
Filed:
August 1, 2012
Date of Patent:
March 13, 2018
Assignees:
NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING CHINESE ACADEMY OF SCIENCES, GUANGDONG KEPRIME ENERSTORE LTD
Inventors:
Jun Li, Jinhua He, Zhenlian Chen, Xianhui Zhang, Yuanhao Tang, Deyu Wang
Abstract: Described herein are solid solution composites that are used as cathode materials for lithium-ion batteries. The solid solution composite of ? LiMVO4-?LiNi1-x-yCoxMnyO2 in which LiMVO4 has cubic close-packed structure, LiNi1-x-yCoxMnyO2 has hexagonal layered structure, and both share an oxygen lattice fully or partly. The new solid solution materials have advantage for lithium-ion batteries that the working voltage of the composite is adjustable by controlling the molar ratio of ? and ? and have higher working voltage than current secondary battery materials. Also described herein are methods of preparing such composite.
Type:
Application
Filed:
August 1, 2012
Publication date:
August 27, 2015
Applicants:
NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING CHINESE ACADEMY OF SCIENCES, GUANGDONG KEPRIME ENERSTORE LTD
Inventors:
Jun Li, Jinhua He, Zhenlian Chen, Xianhui Zhang, Yuanhao Tang, Deyu Wang