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Ag–Doped PEDOT:PSS/CNT Composites for Thin–Film All–Solid–State Supercapacitors with a stretchability of 480%

Abstract

Currently, it remains a great challenge to achieve all–solid–state supercapacitors with both high electrochemical performance and excellent stretchability because of the limitation from stretchable electrodes and solid–state electrolytes. Here, we developed all–solid–state supercapacitors by using aligned carbon nanotube/conducting polymer (Ag–doped poly(3,4–ethylenedioxythiophene)–poly(styrenesulfonate)) composites as electrodes and polyvinyl alcohol–based electrolyte. The obtained all–solid–state supercapacitors not only exhibited a high specific capacitance of 64 mF cm–2 (corresponding 85.3 F g–1), but also can maintain 98% of their original capacitance even under a tensile strain as high as 480%, which represented the highest value for thin–film all–solid–state supercapacitors using the same electrolyte to date, to the best of our knowledge. The newly–developed thin–film supercapacitor maintained 90% of its original capacitance after 100 stretching cycles to tensile strain of 400%, and maintained 93% after stretching to 200% for 2000 cycles, indicating excellent stretching stability. The present work provides an efficient strategy to achieve highly stretchable energy storage devices with high performance.

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Publication details

The article was received on 18 Oct 2017, accepted on 30 Nov 2017 and first published on 30 Nov 2017


Article type: Paper
DOI: 10.1039/C7TA09154K
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Ag–Doped PEDOT:PSS/CNT Composites for Thin–Film All–Solid–State Supercapacitors with a stretchability of 480%

    Y. Zhu, N. Li, T. Lv, Y. Yao, H. Peng, J. Shi, S. Cao and T. Chen, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA09154K

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