摘要
LiFe0.8Mn0.1Mg0.1PO4/C and LiFePO4/C were respectively prepared using MnCO3 and (MgCO3)4 ·Mg(OH)2·5H2O, glucose as doping starting materials by high-temperature solid state reaction under Ar atmosphere. The prepared composites were characterized by X-ray diffraction, scanning electron microscope and FT-IR spectroscopic, and electrochemical performance was investigated with constant current charge-discharge experiment. The results showed that LiFe0.8Mn0.1Mg0.1PO4/C preserved olivine structure with no impurity. Compared with LiFePO4/C, the electronic conductivity of LiFe0.8Mn0.1Mg0.1PO4/C has been improved. LiFe0.8Mn0.1Mg0.1PO4/C had a reversible capacity of 131mAh/g at 0.1C discharge rate, and showed good electrochemical properties.
源语言 | 英语 |
---|---|
页(从-至) | 208-210 |
页数 | 3 |
期刊 | Gongneng Cailiao/Journal of Functional Materials |
卷 | 41 |
期 | 2 |
出版状态 | 已出版 - 2月 2010 |