화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.71, 220-227, March, 2019
DOI10.1016/j.jiec.2018.11.028  Export Citation
Flexible, fiber-shaped supercapacitors with roll-type assembly
Seongil Yu1, Bebi Patil2, and Heejoon Ahn1, 2, †
  • 1Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, South Korea
  • 2Institute of Nano Science and Technology, Hanyang University, Seoul 04763, South Korea
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A fiber-shaped supercapacitor (FSC) with a unique roll-type configuration is developed by simply rolling polyaniline-coated carbon fiber bundle electrodes with an H2SO4/polyvinyl alcohol gel electrolyte. The roll-type polyaniline-coated carbon fibers FSC exhibits four times higher capacitance retention than the twist-type fiber-shaped supercapacitor and shows an energy density of 2.97 Wh kg-1 at a power density of 4 kW kg-1, which is almost hree orders of magnitude higher than that of the twist-type FSC (0.004 Wh kg-1). The enhanced performance of the roll-type FSC is attributable to its unique roll-type configuration, which creates a short and consistent distance between the electrodes.
Keywords:Polyaniline;Carbon fiber;Fiber-shaped supercapacitor;Roll-type assembly
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