| SnO2/ 石墨复合材料作为锂离子电池负极材料研究 |
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| 引用本文： | 齐智,吴锋.SnO2/ 石墨复合材料作为锂离子电池负极材料研究[J].无机化学学报,2005,21(2):257-260. |
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| 作者姓名： | 齐智 吴锋 |
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| 作者单位： | 1. 北京理工大学化工与环境学院,北京,100081
2. 国家高技术绿色材料发展中心,北京,100081 |
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| 基金项目： | 国家重点基础研究发展规划(No.2002CB211800)，国家基础研究重大项目前期研究专项(No.2001CCA05000)，国家自然科学基金(No.90206043)资助项目 |
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| 摘 要： | Nano-scale SnO2 powders were prepared by hydrolyzation. Graphite was poured into the SnCl4 solution during hydrolyzation. After drying and calcining at 360 ℃, the negative electrode composite material of nanosized SnO2 and graphite was obtained. The composite materials were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The average crystallite size was in the range of 15～20 nm. Electrochemical lithium insertion/extraction was studied preliminarily on the obtained composite. The discharge capacity of nanosized SnO2 / graphite composite was found to have a high electrochemical reversible capacity for Li-ion insertion and extraction, which possessed the advantages of both higher discharge capacity of SnO2 and lower discharge potential of graphite. In addition, the cycle capability was also improved due to the inhibiting effect of the composite against pulverization and agglomeration to a certain extent during Li-ion insertion and extraction.
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| 关 键 词： | 锂离子电池 复合材料 二氧化锡 |
| 文章编号： | 1001-4861(2005)02-0257-04 |
| 收稿时间： | 7/5/2004 12:00:00 AM |
| 修稿时间： | 2004年7月5日 |
Nanosized SnO2/ Graphite Composite as Negative Electrode Materials for Lithium Ion Batteries |
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| QI Zhi and WU Feng.Nanosized SnO2/ Graphite Composite as Negative Electrode Materials for Lithium Ion Batteries[J].Chinese Journal of Inorganic Chemistry,2005,21(2):257-260. |
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| Authors: | QI Zhi and WU Feng |
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| Institution: | School of Chemical Engineering and Environment, Beijing Institute of Technology, National Development Center of Hi-Tech Green Materials, Beijing 100081 and School of Chemical Engineering and Environment, Beijing Institute of Technology, National Development Center of Hi-Tech Green Materials, Beijing 100081 |
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| Abstract: | |
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| Keywords: | Li-ion battery composite materials SnO2 |
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