| 硅/碳/碳纳米管复合负极材料的电化学性能 |
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| 引用本文： | 栾振兴,许云华,周志斌,燕映霖.硅/碳/碳纳米管复合负极材料的电化学性能[J].热加工工艺,2011,40(4). |
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| 作者姓名： | 栾振兴 许云华 周志斌 燕映霖 |
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| 作者单位： | 西安建筑科技大学材料科学与工程学院,陕西西安,710055 |
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| 摘 要： | 采用高温裂解沥青、纳米硅和超声酸化处理的碳纳米管混合物,制备了锂离子电池负极复合材料硅/碳/碳纳米管。测试表明复合材料首次放电比容量高达1077 mAh/g,经过20个循环后可逆容量仍高达703 mAh/g。碳纳米管在碳基体中形成的网状结构使复合材料在循环过程中保持较好的稳定形貌。
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| 关 键 词： | 锂离子电池 沥青 硅 碳纳米管 |
Electrochemical Performance of Si/Carbon/Carbon Nano-tube Composite Anode Materials for Lithium-ion Battery |
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| LUAN Zhenxing,XU Yunhua,ZHOU Zhibin,YAN Yinglin.Electrochemical Performance of Si/Carbon/Carbon Nano-tube Composite Anode Materials for Lithium-ion Battery[J].Hot Working Technology,2011,40(4). |
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| Authors: | LUAN Zhenxing XU Yunhua ZHOU Zhibin YAN Yinglin |
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| Affiliation: | LUAN Zhenxing,XU Yunhua,ZHOU Zhibin,YAN Yinglin(School of Material Science and Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China) |
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| Abstract: | The anode material of silicon/carbon/carbon nano-tubes(Si/C/CNTs) was prepared by pyrolyzing the pitch mixture with silicon(Si) and carbon nano-tubes(CNTs).The electrochemical testing results show that a discharge capacity of 1077 mAh/g of the Si/C/CNTs composite is obtained during the first cycle,and a charge capacity of 703 mAh/g still retains after charge-discharge cycles for 20 times.The good electrical conductive and resilient network formed by the CNTs in the carbon matrix can keep stable morphology o... |
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| Keywords: | lithium ion battery pitch Si carbon nano-tube |
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