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http://dx.doi.org/10.5229/JKES.2013.16.2.91

Preparation of Solid Polymer Electrolytes by Ultraviolet Radiation and the Electrochemical Properties of Activated Carbon Supercapacitor Adopting Them  

Won, Jung Ha (Department of Chemical and Biological Engineering, Hanbat National University)
Kim, Yong Joo (Department of Chemical and Biological Engineering, Hanbat National University)
Lee, Young-Gi (Korea Research Section of Power Control Devices, Electronics & Telecommunications Research Institute (ETRI))
Kim, Kwang Man (Korea Research Section of Power Control Devices, Electronics & Telecommunications Research Institute (ETRI))
Kim, Jong Huy (Energy Storage Center, Korea Institute of Energy Research)
Ko, Jang Myoun (Department of Chemical and Biological Engineering, Hanbat National University)
Publication Information
Journal of the Korean Electrochemical Society / v.16, no.2, 2013 , pp. 91-97 More about this Journal
Abstract
Solid polymer electrolyte films are prepared by ultraviolet radiation in the mixtures of an ionic liquid salt (1-ethyl-3-methylimidazolium tetrafluoroborate, $EMIBF_4$) and solvent (acetonitrile (ACN) or propylene carbonate(PC)), and an oligomer (poly(ethylene glycol)diacrylate, PEGDA, 45-60 wt.%). Electrochemical properties of activated carbon supercapacitors adopting the solid polymer electrolyte films as a separator are also examined by cyclic voltammetry and impedance measurement techniques. As a result, the supercapacitor adopting the PEGDA as much as 45 wt.% exhibits a superior capacitance of $46Fg^{-1}$ at $20mVs^{-1}$. It seems that this is due to fast kinetics of ion conduction by sufficient film flexibility, which can be allowed by comparatively weak ultraviolet curing of small anount of the PEGDA.
Keywords
Ultraviolet radiation; Solid polymer electrolyte; Activated carbon electrode; Supercapacitor;
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Times Cited By KSCI : 2  (Citation Analysis)
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