Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
✍ Scribed by Ying-Ying Horng; Yi-Chen Lu; Yu-Kuei Hsu; Chia-Chun Chen; Li-Chyong Chen; Kuei-Hsien Chen
- Book ID
- 104026014
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 948 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0378-7753
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✦ Synopsis
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.