학술논문
Influence of Mg2+ doping on properties of Li1.2Mn0.6Ni0.2O2 cathode materials
Document Type
article
Source
Cailiao gongcheng, Vol 48, Iss 10, Pp 157-162 (2020)
Subject
Language
Chinese
ISSN
1001-4381
Abstract
Lithium-ion battery cathode materials of Mg doped Li1.2Mn0.6Ni0.2O2 were prepared by combustion synthesis. The phase structures and morphologies of the as-prepared samples were characterized by X-ray diffractometer, Raman spectroscopy and scanning electron microscope, respectively, and their electrochemical performance was measured. Results show that the as-prepared samples have better hexagonal layered structure, with spherical-like appearance. Through Mg2+ doping, the initial coulombic efficiency, cyclic stability and rate capacity are efficiently enhanced for the Li1.2Mn0.6Ni0.2O2 material. When the Mg2+ content is 0.02, the battery sample exhibits excellent electrochemical performance.