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Issue 3, 2018
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Ag-Doped PEDOT:PSS/CNT composites for thin-film all-solid-state supercapacitors with a stretchability of 480%

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Abstract

Currently, it remains a great challenge to achieve all-solid-state supercapacitors with both high electrochemical performance and excellent stretchability because of the limitations of 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 electrolytes. The obtained all-solid-state supercapacitors not only exhibited a high specific capacitance of 64 mF cm−2 (corresponding to 85.3 F g−1), but could also maintain 98% of their original capacitance even under a tensile strain as high as 480%, which represents 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 a 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.

Graphical abstract: Ag-Doped PEDOT:PSS/CNT composites for thin-film all-solid-state supercapacitors with a stretchability of 480%

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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, 2018,6, 941-947
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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, 2018, 6, 941
    DOI: 10.1039/C7TA09154K

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