| 纳米碳与石墨碳复合材料的电化学性能 |
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| 引用本文： | 周德凤,赵艳玲,马越,郝婕,谢海明,王荣顺.纳米碳与石墨碳复合材料的电化学性能[J].高等学校化学学报,2004,25(6):1120-1123. |
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| 作者姓名： | 周德凤 赵艳玲 马越 郝婕 谢海明 王荣顺 |
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| 作者单位： | 1. 东北师范大学化学学院功能材料化学研究所, 长春 130024;
2. 长春工业大学生物工程学院, 长春 130012 |
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| 基金项目： | 科技型中小企业技术创新基金 (批准号 :0 0 C2 62 2 2 2 0 0 964 )资助 |
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| 摘 要： | 在天然石墨(NG)中掺杂不同比例的碳纳米管(CNT)得到纳米碳与石墨碳的复合材料.电化学测试结果表明,在NG中掺杂质量分数为10%的CNT所得复合材料的电化学性能最好.经过20次充放电循环,该复合材料的放电容量比同样条件下的石墨提高15.9%.纳米碳管的中空式结构和不易塌陷的特点使复合材料的充放电容量和循环稳定性明显提高.
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| 关 键 词： | 锂离子电池 纳米材料 石墨 复合材料 |
| 文章编号： | 0251-0790(2004)06-1120-04 |
| 收稿时间： | 2003-05-15 |
Electrochemical Performance of Carbon Nanotube and Graphite Composite Materials |
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| ZHOU De-Feng,ZHAO Yan-Ling,MA Yue,HAO Jie,XIE Hai-Ming,WANG Rong-Shun.Electrochemical Performance of Carbon Nanotube and Graphite Composite Materials[J].Chemical Research In Chinese Universities,2004,25(6):1120-1123. |
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| Authors: | ZHOU De-Feng ZHAO Yan-Ling MA Yue HAO Jie XIE Hai-Ming WANG Rong-Shun |
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| Affiliation: | 1. Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China;
2. School of Biological Engineering, Changchun University of Technology, Changchun 130012, China |
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| Abstract: | When natural graphite(NG) is doped with different ratios of carbon nanotube(CNT),a composite material formed by nano-C and graphite-C was obtained. The measurements show that the complex with 10% CNT(in mass fraction) possesses the best electrochemical performance. Undergoing charge/discharge cycles for 20 times,the charge capacity of this material is obviously improved,15.9% more than that of pure graphite without CNT. Due to the mid-hollow structure and anti-collapse property for CNT,this composite material would increase charge/discharge capacity and stable cycle property. WT5HZ] |
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| Keywords: | Lithium ion battery Nano-material Graphite Composite material |
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