| Preparation and Characterization of Carbon Coated Silicon Nanoparticle as Anode Material for Li-ion Batteries |
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| 作者姓名： | T. Zhang L.J. Fu J. Gao Y. P. Wu H.Q. Wu |
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| 作者单位： | Department of Chemistry ＆ Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China |
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| 基金项目： | 国家自然科学基金;上海市科委资助项目 |
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| 摘 要： | Silicon has been regarded as one of the most promising anode materials for Li-ion batteries. Its theoretical capacity （4 000 mAh/g） is much higher than that of the commercialized graphite （372 mAh/g）. However, the cycle performance of silicon is poor due to the severe volume expansion and shrinkage during Li^＋ insertion/extraction which results in pulverization of Si particles, eventually losing its Li^＋ storage ability. To solve this problem, nanosized Si particles were utilized and achieved a partial improvement by reducing the absolute volume change. Nevertheless, a new problem was encountered with nanosized material that small Si particles were aggregated to be larger one during Li^＋ insertion/extraction, and then pulverized again. In this work, we have succeeded to improve the cycle performance of nanosized Si particles by synthesis of carbon coated silicon nanopartiele.
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| 关 键 词： | 锂电池 钠米离子 电解液 阳极材料 电化学 |
| 文章编号： | 0427-7104（2005）05-0903-02 |
| 收稿时间： | 2005-08-09 |
| 修稿时间： | 2005-08-09 |
Preparation and Characterization of Carbon Coated Silicon Nanoparticle as Anode Material for Li-ion Batteries |
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| T. Zhang L.J. Fu J. Gao Y. P. Wu H.Q. Wu.Preparation and Characterization of Carbon Coated Silicon Nanoparticle as Anode Material for Li-ion Batteries[J].Journal of Fudan University(Natural Science),2005,44(5):903-904. |
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| Authors: | T Zhancg LJ Fu J Gao Y P Wu HQ Wu |
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| Abstract: | |
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| Keywords: | Li-ion batteries anode carbon coated silicon nanoparticle emulsion polymerization |
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