Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
Journal
Journal of Power Sources
Journal Volume
195
Journal Issue
13
Pages
4418-4422
Date Issued
2010
Author(s)
Abstract
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. © 2010 Elsevier B.V. All rights reserved.
SDGs
Publisher
Elsevier
Type
journal article