Preparation and electrochemical performance of Li3V2(PO4)3/C cathode material by spray-drying and carbothermal method |
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| Authors: | Feng Yu Jingjie Zhang Yanfeng Yang Guangzhi Song |
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| Institution: | (1) Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China;(2) Graduate School of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China |
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| Abstract: | Composite Li3V2(PO4)3/C cathode material can be synthesized by spray-drying and carbothermal method. The monoclinic-phase Li3V2(PO4)3/C was prepared with the process of double spray drying at 260 °C and subsequent heat treatment at 750 °C for 12 h. The results
indicate that the Li3V2(PO4)3/C presents large reversible discharge capacity of 121.9 mA h g−1 and charge capacity of 131.8 mA h g−1 at the current density of C/5, good rate capability with 61.1 mA h g−1 at 20C, and excellent capacity retention rate close to 100% at various current densities in the region of 3.0–4.3 V. |
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