The Effects of Lithium Triflate (LiCF{sub 3}SO{sub 3}) on the PMMA-based Solid Polymer Electrolytes

Journal Article · Thu Mar 11 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3377823· OSTI ID:21371678

Chew, K W ^[1]; Chen, S S; Pang, W L; Tan, C G ^[2]; Osman, Z ^[3]

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1. Faculty of Engineering and Science, University Tunku Abdul Rahman, 53300 Kuala Lumpur (Malaysia)
2. Faculty of Engineering, Multimedia University, 63100 Cyberjaya (Malaysia)
3. Physics Department, University of Malaya, 50603 Kuala Lumpur (Malaysia)

The effects of Lithium triflate salt (LiCF{sub 3}SO{sub 3}), on the poly (methyl methacrylate)(PMMA)-based solid polymer electrolytes plasticized with propylene carbonate (PC) solvated in Tetrahydrofuran (THF) have been studied through a.c impedance spectroscopy and infrared spectroscopy. Lithium triflate was incorporated into the predetermined PMMA/PC system that has the highest value of ionic conductivity. In current investigations, four combination systems: Pure PMMA, (PMMA+PC) systems, (PMMA+LiCF{sub 3}SO{sub 3}) and (PMMA+PC+LiCF{sub 3}SO{sub 3}) systems were prepared using the solution cast method. Solutions were stirred for numerous hours to obtain a homogenous solution before it is poured into the petri dishes under ambient temperature to form the solid electrolyte thin film. The films were then removed from petri discs and transferred into the dessicator for further drying prior to the different tests. From the characterization done through the a.c impedance spectroscopy, the highest room temperature ionic conductivity in the pure PMMA sample, (PMMA+PC) system and (PMMA+LiCF{sub 3}SO{sub 3}) system is 2.83x10{sup -12} Scm{sup -1}, 4.39x10{sup -11} Scm{sup -1} and 3.93x10{sup -6} Scm{sup -1} respectively. The conductivity for (PMMA+PC+LiCF{sub 3}SO{sub 3}) system was obtained with the 30 wt% of lithium triflate, which is 2.48x10{sup -5} Scm{sup -1}. Infrared spectroscopy shows that complexation occurred between the polymer and the plasticizer, and the polymer and plasticizer and salt. The interactions have been studied in the C=O band, C-O-C band and the O-CH{sub 3} band.

• OSTI ID: 21371678
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1217; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTROSCOPY
ALKALI METAL COMPOUNDS
CARBONIC ACID ESTERS
CARBOXYLIC ACID ESTERS
CERAMICS
COHERENT SCATTERING
DIFFRACTION
DRYING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
ESTERS
FILMS
FURANS
HETEROCYCLIC COMPOUNDS
IMPEDANCE
INFRARED SPECTRA
IONIC CONDUCTIVITY
LITHIUM COMPOUNDS
METHACRYLIC ACID ESTERS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
PLASTICIZERS
PMMA
POLYACRYLATES
POLYMERS
POLYVINYLS
SCATTERING
SOLID ELECTROLYTES
SPECTRA
SPECTROSCOPY
SULFONATES
TETRAHYDROFURAN
THIN FILMS
X-RAY DIFFRACTION