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Citation: ZHUANG Da-Gao, ZHAO Xin-Bing, XIE Jian, TU Jian, ZHU Tie-Jun, CAO Gao-Shao. One-step Solid-state Synthesis and Electrochemical Performance of Nb-doped LiFePO₄/C[J]. Acta Physico-Chimica Sinica, ;2006, 22(07): 840-844. doi: 10.1016/S1872-1508(06)60037-5 shu

One-step Solid-state Synthesis and Electrochemical Performance of Nb-doped LiFePO₄/C

1.
State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, P. R. China

Received Date: 21 February 2006
Available Online: 27 June 2006

Nb-doped LiFePO4/C was synthesized using one-step solid-state method. The effect of Nb contents on the electrochemical performance was investigated. The results showed that the electrochemical performances were remarkably promoted. The discharge capacities of Li0.96Nb0.008FePO4/C cathode material were 161, 148, and 132 mAh•g−1 at the charge and discharge rates of 0.5C, 1C, and 2C, respectively. The results of cyclic voltammetry and EIS analyses showed that the resistance and polarization of the LiFePO4/C composite electrode could be effectively decreased by Nb doping, which would improve the electron conductivity of LiFePO4.
- Lithium ion battery;Cathode material;Nb doping;LiFePO4/C;Electrochemical performance
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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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One-step Solid-state Synthesis and Electrochemical Performance of Nb-doped LiFePO4/C

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通讯作者: 陈斌, bchen63@163.com

One-step Solid-state Synthesis and Electrochemical Performance of Nb-doped LiFePO₄/C