High-rate cathode based on Li3V2(PO4)3/C composite material prepared via a glycine-assisted sol–gel method |
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| Authors: | Lijuan Wang Zhiyuan Tang Li Ma Xinhe Zhang |
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| Institution: | aDepartment of Applied Chemistry, School of Chemical Engineering and Technology, Tianjin University, Tiianjin 300072, China;bMcNair Technology Company, Limited, Dongguan City, Guangdong 523700, China |
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| Abstract: | Carbon-coated monoclinic Li3V2(PO4)3 (LVP/C) cathode material has been successfully prepared by a novel glycine-assisted sol–gel method. The product is investigated by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM) and electrochemical method. In the range of 3.0–4.3 V, the LVP/C electrode presents excellent rate capability. It is 125.4 mAh g− 1 that can be delivered at 1 C charge–discharge rate and 99.5 mAh g− 1 is still obtained at 20 C charge–discharge rate. These results demonstrate that the carbon-coated LVP/C composite material prepared via a glycine-assisted sol–gel method has great potential for use in high-power lithium ion batteries. |
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| Keywords: | Lithium vanadium phosphate Carbon coat Cathode material Lithium ion batteries Sol&ndash gel method |
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