Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 44, Issue 11, Pages 9166-9176Publisher
WILEY
DOI: 10.1002/er.5558
Keywords
fabric; fiberglass cloth; flexible supercapacitor; polypyrrole; textile
Categories
Funding
- National Natural Science Foundation of China [51763008]
- Natural Science Foundation of Guangxi Province [2017GXNSFBA198085, 2018GXNSFAA281241, 2019GXNSFAA245028]
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Textile-based flexible supercapacitors have various desirable advantages in practical applications due to their excellent flexibility, ease of large-scale production, and low cost. In this study, a flexible supercapacitor was designed and fabricated using a two-step polymerization method based on fiberglass cloth and unique morphology of polypyrrole (PPy). In this extraordinary nanostructure, not only do PPy tentacles provide high-speed channels for the transfer of electron and ion, but they also create a larger specific surface area, thus enhancing the energy storage. The fabricated PPy/CFC supercapacitor possesses an excellent area-specific capacitance of 549.6 mF cm(-2)and a remarkable energy density of 48.85 mu Wh cm(-2). Besides, it achieves the high capacitance retention of 92.4% after 10 000 charge and discharge cycles and 96.08% after 1000 bending cycles. Furthermore, it is demonstrated that the PPy/CFC supercapacitor is capable of ensuring a stable power supply for practical applications by driving an LCD electronic watch. The fiberglass cloth-based supercapacitors with PPy tentacles provide a new approach to the practical applications of wearable power supplies.
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