Poly(vinylidenefluoride)-Hexafluoropropylene-Methyl N-methylpyrrolidinium-N-acetate Trifluoromethanesulfonylimide-Lithium Trifluoromethanesulfonylimide Gel Electrolytes

Title
Poly(vinylidenefluoride)-Hexafluoropropylene-Methyl N-methylpyrrolidinium-N-acetate Trifluoromethanesulfonylimide-Lithium Trifluoromethanesulfonylimide Gel Electrolytes
Authors
김기섭이슬비이현주김훈식이영우곽광수
Keywords
Ionic liquids; Gel electrolytes; Poly(vinylidenefluoride)-hexafluoropropylene; Methyl N-methylpyrrolidinium-N-acetate; trifluoromethanesulfonylimide; Lithium trifluoromethanesulfonylimide; Electrochemical properties
Issue Date
2009-10
Publisher
Journal of industrial and engineering chemistry
Citation
VOL 15, NO 5, 657-660
Abstract
New polymer-ionic liquid-lithium salt gel electrolytes (PILGEs) were prepared using poly(vinylidenefluoride)-hexafluoropropylene copolymer (PVdF(HFP)), methyl N-methylpyrrolidinium-N-acetate trifluoromethanesulfonimide ([MMEPyr][TFSI]), and lithium trifluoromethanesulfonylimide (LiTFSI) in order to investigate the effects of ionic liquids containing an ester group on the electrochemical properties of polymer gel electrolytes. Free standing ionic gels consisting of PVdF(HFP), [MMEPyr][TFSI], and LiTFSI were prepared in a range of weight ratio of polymer/[MMEPyr][TFSI]/LiTFSI = 1/2/0.1 1. Ionic conductivities for the prepared PILGEs were measured with changing temperature and weight ratio of LiTFSI and the obtained values were found to be reasonable (10−4 S cm−1) over the operating temperatures.
URI
http://pubs.kist.re.kr/handle/201004/45551
ISSN
1226-086x
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