| 锂离子正极材料Li（Ni_（1/3）Co_（1/3）Mn_（1/3））O_（2-x）F_x的合成与电化学性能 |
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| 引用本文： | 莫如宝,吉雪颜,蒋建军,蒋道俊,朱媚平,于湘红,刘建本. 锂离子正极材料Li（Ni_（1/3）Co_（1/3）Mn_（1/3））O_（2-x）F_x的合成与电化学性能[J]. 广州化工, 2011, 39(6): 63-66 |
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| 作者姓名： | 莫如宝 吉雪颜 蒋建军 蒋道俊 朱媚平 于湘红 刘建本 |
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| 作者单位： | 吉首大学化学化工学院,湖南,吉首,416000 |
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| 基金项目： | 吉首大学大学生研究性学习和创新性实验计划 |
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| 摘 要： | 采用沉淀法合成一系列Li（Ni1/3Co1/3Mn1/3）O2-xFx正极材料（0≤x≤0.5）;用X射线衍射仪和扫描电镜仪分析了合成产物的晶体结构及表面形貌;利用充放电仪测定产物的电化学性能,结果表明Li（Ni1/3Co1/3Mn1/3）O1.7F0.3的电化学性能最佳,首次充放电比容量分别达181.9、174.0 mA.h/g,材料的结构在循环过程中保持稳定,倍率性能变好,电化学阻抗明显降低。
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| 关 键 词： | 锂离子电池 正极材料 掺杂 电化学性能 |
Synthesis and Electrochemical Performance of Li(Ni1/3Co1/3 Mn1/3)O2-x Fx Cathode Materials for Lithium-Ion Battery |
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| MO Ru-bao,JI Xue-yan,JIANG Jian-jun,JIANG Dao-jun,ZHU Mei-ping,YU Xiang-hong,LIU Jian-ben. Synthesis and Electrochemical Performance of Li(Ni1/3Co1/3 Mn1/3)O2-x Fx Cathode Materials for Lithium-Ion Battery[J]. GuangZhou Chemical Industry and Technology, 2011, 39(6): 63-66 |
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| Authors: | MO Ru-bao JI Xue-yan JIANG Jian-jun JIANG Dao-jun ZHU Mei-ping YU Xiang-hong LIU Jian-ben |
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| Affiliation: | (College of Chemistry and Chemical Engineering,Jishou University,Hunan Jishou 416000,China) |
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| Abstract: | A series of Li(Ni1/3Co1/3Mn1/3)O2-xFx(0.0≤x≤0.5) samples were prepared as cathode materials of lithium-ion battery by using coprecipitation method.The crystal structure and surface morphologies of the products was analyzed by means of X-ray diffraction and scanning electron microscopy(SEM) methods.The electrochemical performance of Li(Ni1/3Co1/3Mn1/3)O2-xFx was evaluated by charge/discharge tests.Results showed that the Li(Ni1/3Co1/3Mn1/3)O1.7F0.3 had the best electrochemical performance,the initial charge/discharge capacity of 181.9 mA·h/g and 174.0 mA·h/g,respectively.The structure of the material was stable in the cycle process.Magnification performance became better,and electrochemical impedance reduced significantly. |
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| Keywords: | lithium-ion battery cathode materials mix performance |
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