| Synthesis and characterization of layered Li（Ni1/3Mn1/3CO1/3）O2 cathode materials by spray-drying method |
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| 引用本文： | 刘智敏,胡国荣,彭忠东,邓新荣,刘业翔.Synthesis and characterization of layered Li（Ni1/3Mn1/3CO1/3）O2 cathode materials by spray-drying method[J].中国有色金属学会会刊,2007,17(2):291-295. |
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| 作者姓名： | 刘智敏 胡国荣 彭忠东 邓新荣 刘业翔 |
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| 作者单位： | School of Metallurgical Science and Engineering Central South University，School of Metallurgical Science and Engineering Central South University，School of Metallurgical Science and Engineering Central South University，School of Metallurgical Science and Engineering Central South University，School of Metallurgical Science and Engineering Central South University，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China |
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| 摘 要： | Spherical Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 was prepared via the homogenous precursors produced by solution spray-drying method. The precursors were sintered at different temperatures between 600 and 1 000 ℃ for 10 h. The impacts of different sintering temperatures on the structure and electrochemical performances of Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 were compared by means of X-ray diffractometry(XRD), scanning electron microscopy(SEM), and charge/discharge test as cathode materials for lithium ion batteries. The experimental results show that the spherical morphology of the spray-dried powers maintains during the subsequent heat treatment and the specific capacity increases with rising sintering temperature. When the sintering temperature rises up to 900 ℃ , Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 attains a reversible capacity of 153 mA·h/g between 3.00 and 4.35 V at 0.2C rate with excellent cyclability.
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| 关 键 词： | 层状阴极材料 Li（Ni1/3Mn1/3CO1/3）O2 合成 性质 喷雾干燥法 锂离子电池 |
| 收稿时间： | 2006-04-14 |
| 修稿时间： | 2006-12-21 |
Synthesis and characterization of layered Li(Ni1/3Mn1/3Co1/3)O2 cathode materials by spray-drying method |
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| LIU Zhi-min,HU Guo-rong,PENG Zhong-dong,DENG Xin-rong,LIU Ye-xiang.Synthesis and characterization of layered Li(Ni1/3Mn1/3Co1/3)O2 cathode materials by spray-drying method[J].Transactions of Nonferrous Metals Society of China,2007,17(2):291-295. |
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| Authors: | LIU Zhi-min HU Guo-rong PENG Zhong-dong DENG Xin-rong LIU Ye-xiang |
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| Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Spherical Li(Ni1/3Mn1/3Co1/3)O2 was prepared via the homogenous precursors produced by solution spray-drying method. The precursors were sintered at different temperatures between 600 and 1 000 °C for 10 h. The impacts of different sintering temperatures on the structure and electrochemical performances of Li(Ni1/3Mn1/3Co1/3)O2 were compared by means of X-ray diffractometry(XRD), scanning electron microscopy(SEM), and charge/discharge test as cathode materials for lithium ion batteries. The experimental results show that the spherical morphology of the spray-dried powers maintains during the subsequent heat treatment and the specific capacity increases with rising sintering temperature. When the sintering temperature rises up to 900 °C, Li(Ni1/3Mn1/3Co1/3)O2 attains a reversible capacity of 153 mA-h/g between 3.00 and 4.35 V at 0.2C rate with excellent cyclability. |
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| Keywords: | spherical Li(Ni1/3Mn1/3Co1/3)O2 powder synthesis characterization spray-drying method lithium ion battery |
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