Journal
JOURNAL OF POWER SOURCES
Volume 243, Issue -, Pages 648-653Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.06.050
Keywords
Supercapacitor; Electrical double-layer capacitors; Silicon carbide nanowires; Carbon fabric; Electrode materials; Cycle stability
Funding
- National Natural Science Foundation of China [60976012, 51272232]
- Program for New Century Excellent Talents in University
- Fundamental Research Funds for the Central Universities [2011QNA3019]
- Science and Technology Innovative Research Team of Zhejiang Province [2009R50010]
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In this paper, we report the supercapacitor electrodes with excellent cycle stability, which are made of silicon carbide nanowires (SiC NWs) grown on flexible carbon fabric. A high areal capacitance of 23 mF cm(-2) is achieved at a scan rate of 50 mV s(-1) at room temperature and capacitances increase with the rise of the working temperature. Owing to the excellent thermal stability of SiC NWs and carbon fabric, no observable decrease of capacitance occurs at room temperature (20 degrees C) after 10(5) cycles, which satisfies the demands of the commercial applications. Further increasing the measurement temperature to 60 degrees C, 90% of the initial capacitance is still retained after 10(5) cycles. This study shows that silicon carbide nanowires on carbon fabric are a promising electrode material for high temperature and stable micro-supercapacitors. (C) 2013 Elsevier B.V. All rights reserved.
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