Kim, Ki-Sub Lee, Seul Bee Lee, Hyunjoo Kim, Hoon Sik Lee, Youngwoo Kwack, Kwangsoo 2024-01-20T20:34:34Z 2024-01-20T20:34:34Z 2021-09-04 2009-09-25 1226-086X https://pubs.kist.re.kr/handle/201004/132153 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 similar to 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. (C) 2009 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry. English ELSEVIER SCIENCE INC IONIC LIQUIDS MEMBRANES Poly(vinylidenefluoride)-hexafluoropropylene-methyl N-methylpyrrolidinium-N-acetate trifluoromethanesulfonylimide-lithium trifluoromethanesulfonylimide gel electrolytes Article 10.1016/j.jiec.2009.09.039 1 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.15, no.5, pp.657 - 660 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 15 5 657 660 scie scopus kci ART001393720 000273458800010 2-s2.0-70449716866 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article IONIC LIQUIDS MEMBRANES Ionic liquids Gel electrolytes Poly(vinylidenefluoride)-hexafluoropropylene Methyl N-methylpyrrolidinium-N-acetate trifluoromethanesulfonylimide Lithium trifluoromethanesulfonylimide Electrochemical properties