| 蔡满园,孙晓刚,聂艳艳,刘珍红,邱治文,陈珑.基于纸纤维/晶须状碳纳米管/活性炭三元无金属集流体复合纸电极的柔性超级电容器[J].材料导报,2017,31(16):6-11, 15 |
| 基于纸纤维/晶须状碳纳米管/活性炭三元无金属集流体复合纸电极的柔性超级电容器 |
| Flexible Supercapacitor Based on a Paper Fibers/Whisker-like Carbon Nanotubes/Activated Carbon Ternary Composite Paper Electrode with Metal-free Current Collector |
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| DOI：10.11896/j.issn.1005-023X.2017.016.002 |
| 中文关键词: 活性炭 晶须状碳纳米管 纸纤维 柔性 超级电容器 无金属集流体 纸电极 |
| 英文关键词: activated carbon, whisker-like carbon nanotubes, paper fiber, flexibility, supercapacitor, metal-free current collector, paper electrode |
| 基金项目:江西省科技厅科研项目(20142BBE50071)；江西省教育厅(KJD13006) |
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| 中文摘要: |
| 以纸纤维(PF)为基体,晶须状碳纳米管(WCNT)和活性炭(AC)为功能添加物,采用真空抽滤法制成PF/WCNT/AC三元无金属集流体复合电极。利用扫描电子显微镜(SEM)、X射线衍射(XRD)光谱仪、拉曼(Raman)光谱仪对其进行表征和分析,采用两电极测试体系对组装的超级电容器性能进行测试。结果表明,与涂布法所得的铝箔集流体(Al/WCNT/AC)电极相比,由PF/WCNT/AC三元复合电极组装的超级电容器比电容大幅提高,并展现出良好的充放电性能。在1 mV/s的扫描速率下比电容达325 F/g,几乎是Al/WCNT/AC超级电容器(108.7 F/g)的3倍。PF/WCNT/AC超级电容器在0.4 A/g电流密度下的比电容为95 F/g,在3.2 A/g电流密度下的比能量与比功率分别为36.76 Wh/kg、5.52 kW/kg。 |
| 英文摘要: |
| Using paper fibers (PFs) as matrix, whisker-like carbon nanotubes (WCNTs) and activated carbon (AC) as functional additives, a PF/WCNT/AC composite paper electrode was fabricated by traditional paper-making process. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy were used for characterization, and a double-electrode system was employed to measure the performance of supercapacitor based on the PF/WCNT/AC composite paper electrode. The results showed that the supercapacitor with PF/WCNT/AC electrode exhibits a good charge and discharge performance, and a significantly increased specific capacitance compared to the supercapacitor with Al/WCNT/AC composite that has a metal current collector, as the former (325 F/g) was 199% higher than the latter (108.7 F/g) under a scan rate of 1 mV/s. PF/WCNT/AC supercapacitor had a specific capacitance of 95 F/g while the current density was 0.4 A/g, and its specific energy and specific power were respectively 36.76 Wh/kg, 5.52 kW/kg while the current density was 3.2 A/g. |
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