Advanced materials research · 2012 · 13 citations · 16 references
Natural SciencesChemistryMaterials ScienceElectrochemistryPolymer ChemistryPolymer MaterialsConducting PolymersDielectricsElectrical ConductivityElectrochemical Impedance SpectroscopyIonic ConductivityIonic ConductorsConductivityDielectric PermittivityElectrochemical Impedance AnalysisHumidityIonic Conductivity MeasurementPolymer ElectrolytesSalt Concentration EffectsSalt Concentration Optimization
Polymer electrolytes consist of poly(vinylidene fluoride –hexafluoropropylene) (PVDF-HFP) and lithium trifluoromethanesulfonate, LiTf (LiCF3SO3) were prepared by dissolving in dimethylformamide (DMF) using solution casting method and further dried in vacuum oven. The conductivity of each sample was investigated using electrochemical impedance spectroscopy (EIS) method. The samples were measured in two different environments viz. in humidity chamber (40% RH; 27°C) and at ambient condition (~60% RH; 27°C). The maximum conductivity obtained for the samples in humidity chamber was 8.05 × 10-5 S/cm with addition of 35 wt% of LiTf. Meanwhile, the highest conducting samples (with addition of 45 wt% of LiTf) exhibited the ambient condition temperature of 1.11 ×10-4 S/cm. Further increased salt concentration from the optimize concentration values has reduced the conductivity of the polymer electrolyte. Dielectric permittivity studies revealed that samples showed the non-Debye behaviors
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Performance of Bellcore's plastic rechargeable Li-ion batteries
J.‐M. Tarascon, Antoni S. Góźdź, C. Schmutz et al. · Solid State Ionics · 1996 · 607 citations
Natural Sciences, Materials Engineering, Materials Science +12
Study of dielectric relaxation in polymer electrolytes
K. P. Singh, Pankaj Gupta · European Polymer Journal · 1998 · 127 citations