Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
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DOI：
10.1016/j.jpowsour.2010.01.046
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发表时间：
2010-07-01
影响因子：
9.2
通讯作者：
Chen, Kuei-Hsien
中科院分区：
文献类型：
--
作者：
Horng, Ying-Ying;Lu, Yi-Chen;Chen, Kuei-Hsien
采用聚苯胺纳米线/碳布（PANI-NWs/CC）纳米复合材料成功制备了柔性超级电容器。在比能量为100.9 Wh kg（-1）和比功率为12.1 kW kg（-1）时，获得了1079 F g（-1）的高重量电容。此外，这种方法还提供了1.8 F cm（-2）的异常高的面积归一化电容。电化学阻抗分析表明，质子在PANI-NW中的扩散长度约为60 nm，表明电极的电化学性能不受PANI-NW厚度的限制。PANI-NWS/CC的电化学性能保持没有任何恶化，即使当电池在高曲率下弯曲。这些结果清楚地提出了一种具有成本效益和简单的方法来制造具有巨大潜力的纳米结构的聚合物在柔性储能装置的应用。(C)2010爱思唯尔有限公司版权所有。
Flexible supercapacitor is successfully fabricated using polyaniline nanowires/carbon cloth (PANI-NWs/CC) nanocomposite. High gravimetric capacitance of 1079 F g(-1) at a specific energy of 100.9 Wh kg(-1) and a specific power of 12.1 kW kg(-1) is obtained. Moreover, this approach also offers an exceptionally high area-normalized capacitance of 1.8 F cm(-2). The diffusion length of protons within the PANI-NWs is estimated to be about 60 nm by electrochemical impedance analysis, which indicates that the electrochemical performance of the electrode is not limited by the thickness of PANI-NWs. The electrochemical performance of PANI-NWS/CC remains without any deterioration, even when the cell is bent under high curvature. These results clearly present a cost-effective and simple method of fabrication of the nanostructured polymers with enormous potential in flexible energy storage device applications. (C) 2010 Elsevier B.V. All rights reserved.