| 正极材料Li(Ni1/3Co1/3Mn1/3)0.96Si0.04O1.96F0.04的合成及其性能 |
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| 引用本文： | 黄原君,高德淑,雷钢铁,李朝晖,苏光耀.正极材料Li(Ni1/3Co1/3Mn1/3)0.96Si0.04O1.96F0.04的合成及其性能[J].电源技术,2007,31(7):519-522. |
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| 作者姓名： | 黄原君 高德淑 雷钢铁 李朝晖 苏光耀 |
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| 作者单位： | 湘潭大学,化学学院,湖南湘潭,411105;湘潭大学,化学学院,湖南湘潭,411105;湘潭大学,化学学院,湖南湘潭,411105;湘潭大学,化学学院,湖南湘潭,411105;湘潭大学,化学学院,湖南湘潭,411105 |
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| 摘 要： | 采用共沉淀法合成了锂离子蓄电池正极材料LiNi1/3Co1/3Mn1/3O2,用阴阳离子复合掺杂的方法对其进行改性.X射线衍射光谱(XRD)结果表明,复合掺杂没有改变晶体的层状结构.采用恒电流充放电和交流阻抗对其电化学性能进行了研究,结果表明,复合掺杂提高了材料的首次放电容量和循环性能,抑制了其在循环过程中电化学反应阻抗的增加.
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| 关 键 词： | 锂离子蓄电池 正极材料 复合掺杂 电化学性能 |
| 文章编号： | 1002-087X(2007)07-0519-04 |
| 修稿时间： | 2006年12月11 |
Synthesis and properties of Li(Ni1/3Co1/3Mn1/3)0.96Si0.04O1.96F0.04 as the cathode material for lithium-ion battery |
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| HUANG Yuan-jun,GAO De-shu,LEI Gang-tie,LI Zhao-hui,SU Guang-yao.Synthesis and properties of Li(Ni1/3Co1/3Mn1/3)0.96Si0.04O1.96F0.04 as the cathode material for lithium-ion battery[J].Chinese Journal of Power Sources,2007,31(7):519-522. |
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| Authors: | HUANG Yuan-jun GAO De-shu LEI Gang-tie LI Zhao-hui SU Guang-yao |
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| Abstract: | Cathode materials of LiNi1/3Co1/3Mn1/3O2 doped with several ions (anion-cation) were prepared by co-precipitated method.X-ray diffration(XRD) results show that LiNi1/3Co1/3Mn1/3O2 has a better-layered structure after doping with the anion-cation. Electrochemical performance was investigated by galvanostatic charge-discharge experiment and electrochemical impedance spectrum (EIS). It exhibits that the first discharge capacity enhances and cycling property is improved. The increase of the electrochemical reaction impedance of cathode is also restrained during cycling. |
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| Keywords: | lithium-ion battery cathode materials composite doping electrochemical performance |
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