期刊
JOURNAL OF POWER SOURCES
卷 196, 期 1, 页码 559-564出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.07.007
关键词
Nanofibers; PEDOT; Textile supercapacitor; Flexible supercapacitor
Poly(3,4-ethylenedioxythiophene) (PEDOT) nanofibers were obtained by the combination of electrospinning and vapor-phase polymerization. The fibers had diameters around 350 nm, and were soldered at most intersections, providing a strong dimensional stability to the mats. The nanofiber mats demonstrated very high conductivity (60 +/- 10 S cm(-1) the highest value reported so far for polymer nanofibers) as well as improved electrochemical properties, due to the ultraporous nature of the electrospun mats. The mats were incorporated into all-textile flexible supercapacitors, using carbon cloths as the current collectors and electrospun polyacrylonitrile (PAN) nanofibrous membranes as the separator. The textile layers were stacked and embedded in a solid electrolyte containing an ionic liquid and PVDF-co-HFP as the host polymer. The resulting supercapacitors were totally flexible and demonstrated interesting and stable performances in ambient conditions. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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