| 液相球化法合成新型正极材料磷酸钒锂 |
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| 引用本文： | 侯春平,岳敏.液相球化法合成新型正极材料磷酸钒锂[J].物理化学学报,2007,23(12):1954-1957. |
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| 作者姓名： | 侯春平 岳敏 |
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| 作者单位： | Shenzhen BTR New Energy Materials Inc., Shenzhen 518106, Guangdong Province, P. R. China |
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| 摘 要： | A novel cathode material lithium vanadium phosphate with the microstructure of submicro-particles aggregate was synthesized by liquid-phase sphericizing granulation. XRD pattern showed that the crystal structure of Li3V2(PO4)3 was monoclinic and belonged to P21/n space group. SEM revealed that the diameters of the particle and aggregated particle were in submicron range and about 10 滋m, respectively, with a narrowdistribution. The electrochemical testing showed that the obtained Li3V2(PO4)3 had the maximum discharge capacity of 126.67 mAh·g-1 and initial coulombic efficiency of 95.6%in the range of 3.0-4.3 V (vs Li/Li+), and 170.47mAh·g-1 and 97.5%in the range of 3.0-4.9 V (vs Li/Li+) at a density of 55.6 mA·g-1, respectively. Moreover, the material had a better cycle stability.
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| 关 键 词： | 锂离子电池 正极材料 磷酸钒锂 液相法 造粒 |
| 收稿时间： | 2007-09-17 |
| 修稿时间： | 2007-11-07 |
A Novel Cathode Material Lithium Vanadium Phosphate Synthesized by Liquid-phase Sphericizing Granulation |
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| HOU Chun-Ping,YUE Min.A Novel Cathode Material Lithium Vanadium Phosphate Synthesized by Liquid-phase Sphericizing Granulation[J].Acta Physico-Chimica Sinica,2007,23(12):1954-1957. |
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| Authors: | HOU Chun-Ping YUE Min |
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| Institution: | Shenzhen BTR New Energy Materials Inc., Shenzhen 518106, Guangdong Province, P. R. China |
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| Abstract: | |
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| Keywords: | Li-ion batteries Cathode material Lithium vanadium phosphate Liquid-phase method Sphericizing granulation |
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