Flexible Supercapacitor Based on a Paper Fibers/Whisker-like Carbon Nanotubes/ Activated Carbon Ternary Composite Paper Electrode with Metal-free Current Collector
CAI Manyuan, SUN Xiaogang, NIE Yanyan, LIU Zhenhong, QIU Zhiwen, CHEN Long
School of Mechantronics Engineering, Nanchang University, Nanchang 330031
Abstract: 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.
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》期刊社, 2017, 31(16): 6-11.
CAI Manyuan, SUN Xiaogang, NIE Yanyan, LIU Zhenhong, QIU Zhiwen, CHEN Long. Flexible Supercapacitor Based on a Paper Fibers/Whisker-like Carbon Nanotubes/ Activated Carbon Ternary Composite Paper Electrode with Metal-free Current Collector. Materials Reports, 2017, 31(16): 6-11.
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2017, Vol. 31 
