| 柔性、自支撑CNT/Si复合薄膜的制备及储能性能 |
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| 引用本文： | 李靓晗,简现龙,张森,张明,孙玉平,王新昌.柔性、自支撑CNT/Si复合薄膜的制备及储能性能[J].化工学报,2020,71(6):2804-2810. |
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| 作者姓名： | 李靓晗 简现龙 张森 张明 孙玉平 王新昌 |
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| 作者单位： | 郑州大学物理学院（微电子学院），材料物理教育部重点实验室，河南 郑州 450052 |
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| 摘 要： | 开发了一种制备大面积CNT/Si柔性自支撑薄膜的方法，制备的CNT/Si复合薄膜尺寸可调且具有良好的柔性。作为锂离子电池负极，薄膜中硅的负载量对电极比容量及循环稳定性有显著影响。硅负载量为52%的CNT/Si复合电极表现出优良的电化学性能，1 A/g电流密度下电极充电比容量为1156 mA·h/g，循环200圈可逆充电比容量为975 mA·h/g，容量保持率达84%。
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| 关 键 词： | 纳米技术 制备 柔性 自支撑 硅负极 复合材料 |
| 收稿时间： | 2020-02-17 |
| 修稿时间： | 2020-04-13 |
Preparation and energy storage properties of flexible and self-supporting CNT/Si composite films |
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| LI Lianghan,JIAN Xianlong,ZHANG Sen,ZHANG Ming,SUN Yuping,WANG Xinchang.Preparation and energy storage properties of flexible and self-supporting CNT/Si composite films[J].Journal of Chemical Industry and Engineering(China),2020,71(6):2804-2810. |
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| Authors: | LI Lianghan JIAN Xianlong ZHANG Sen ZHANG Ming SUN Yuping WANG Xinchang |
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| Affiliation: | Key Laboratory of Material Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, Henan, China |
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| Abstract: | A method for preparing large-area CNT/Si flexible self-supporting film has been developed. The prepared CNT/Si composite film is adjustable in size and has good flexibility. As the anode of lithium-ion battery, the silicon load in the film has a significant effect on the specific capacity and cycle stability of the electrode. The CNT/Si composite electrode with 52% silicon load shows excellent electrochemical performance. The specific charge capacity of the electrode is 1156 mA·h/g at the current density of 1 A/g, 975 mA·h/g at the reversible charge capacity of 200 cycles, and the capacity retention rate is 84%. |
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| Keywords: | nanotechnology preparation flexible self-supporting silicon anode composite material |
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