Study on the band gap character of Mn-base lithium anode material
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-01-01 |
| Authors | WU Han-ji |
| Institutions | State Key Laboratory of Vehicle NVH and Safety Technology |
Abstract
Section titled āAbstractāFor doping Ni and Fe solid material, studying on Mn-base lithium anode material by using high temperature synthesis method, the preparation of the Mn-Base lithium anode semiconductor material LiNi0.5Mn1.5O4,LiNi0.5Mn1.5Fe0.1O4 and LiNi0.5Mn1.5Fe0.2O4. The crystal structure of the sample was analyzed and collected through Xray diffractometry(XRD), It also tested spectrum features of the material by using ultraviolet visible spectrophotometer, The character of charge-discharge were showed by high precision electrical tester. Testing results showed that Mn-base lithium anode semiconducting material was diamond structure, crystal structure was space group of Fd3 m and the cubic crystal system. When absorption coefficient of ultraviolet visible light of LiNi0.5Mn1.5O4, LiNi0.5Mn1.5Fe0.1O4 and LiNi0.5Mn1.5Fe0.2O4 were respectively 0.830, 0.839 and 0.857, the width of the band gap were respectively 2.24 e V, 2.22 e V, 1.85 e V. Electrical characteristics tests indicated that there were two charge-discharge platforms and between 3.45 V and 4.8 V in the semi-finished products of the battery.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal Sourceā- DOI: None