期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 6, 期 3, 页码 941-947出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta09154k
关键词
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资金
- National Natural Science Foundation of China [51503152, 21774094, 51702237]
- Science & Technology Commission of Shanghai Municipality [14DZ2261100]
- Shanghai Rising-Star Program [17QA1404300]
- Youth Talent Support Program at Shanghai
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Fundamental Research Funds for the Central Universities
- High-Level Linghang Program in Tongji University
- China Postdoctoral Science Foundation [2016M600329]
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 Fg(-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.
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