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Citation: CHEN Yu, WANG Zhong-Li, YU Chun-Yang, XIA Ding-Guo, WU Zi-Yu. Electrochemical Properties of Mo-Doped LiFePO₄ Cathode Material[J]. Acta Physico-Chimica Sinica, ;2008, 24(08): 1498-1502. doi: 10.3866/PKU.WHXB20080829 shu

Electrochemical Properties of Mo-Doped LiFePO₄ Cathode Material

1.
College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, P. R. China; Biochemical Engineering College of Beijing Union University, Beijing 100023, P. R. China; Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China

Received Date: 4 February 2008
Available Online: 25 June 2008

Mo-doped LiFePO4 was prepared using (NH4)6Mo7O24·4H2O as doping starting material by solid state method under N2 atmosphere. The Mo-doped LiFePO4 samples were characterized by X-ray diffraction, scanning electron microscope, X-ray photoelectron spectrum, extended X-ray absorption fine structure, positron annihilation technique, and electrochemical performance testing at different discharge rates. The results showed that Mo-doped LiFePO4 preserved pure olivine structure. Mo6 + occupied Fe site and Li site simultaneously and the electronic conductivity of LiFePO4 increased. The Mo-doped LiFePO4 had a reversible capacity of 141 mAh·g-1 at 1C discharge rate, and showed od electrochemical properties.
- LiFePO4; Solid-state reaction; Doping-ion; Electronic conductivity
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Electrochemical Properties of Mo-Doped LiFePO4 Cathode Material

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通讯作者: 陈斌, bchen63@163.com

Electrochemical Properties of Mo-Doped LiFePO₄ Cathode Material