Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
| Autor: | Kuei-Hsien Chen, Yu-Kuei Hsu, Li-Chyong Chen, Ying Ying Horng, Chia Chun Chen, Yi Chen Lu |
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| Rok vydání: | 2010 |
| Předmět: |
Supercapacitor
Materials science Nanocomposite Renewable Energy Sustainability and the Environment business.industry Nanowire Energy Engineering and Power Technology Nanotechnology Capacitance Energy storage Electrode Gravimetric analysis Specific energy Optoelectronics Electrical and Electronic Engineering Physical and Theoretical Chemistry business |
| Zdroj: | Journal of Power Sources. 195:4418-4422 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2010.01.046 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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