Abstract
Fiber-shaped supercapacitors, which are energy-storage devices that feature flexibility and wearability, could realize further gains in energy-storage performance if their electrodes are properly designed. Herein, we present a high energy-performance and flexible fiber-shaped supercapacitor by using PEDOT@MnO2and C@Fe3O4composites as the positive and negative electrodes, respectively. The as-fabricated fiber-shaped supercapacitor with a high working voltage of 2 V exhibits a high areal specific capacitance of 60 mF cm-2and a large energy density of 0.0335 mW h cm-2. This fiber-shaped supercapacitor exhibits good flexibility and particularly can be deformed without energy-performance decay. Furthermore, this fiber-shaped supercapacitor woven into a wristband in series can successfully power a LED, indicating its promising practical application in wearable electronics.
Original language | English |
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Pages (from-to) | 14877-14883 |
Number of pages | 7 |
Journal | Journal of Materials Chemistry A |
Volume | 4 |
Issue number | 38 |
DOIs | |
Publication status | Published - 1 Jan 2016 |
ASJC Scopus subject areas
- General Chemistry
- Renewable Energy, Sustainability and the Environment
- General Materials Science