The Journal of Physical Chemistry B · 2001 · 22 citations · 9 references
Natural SciencesChemistryMaterials ScienceElectrochemistryPolymer ChemistryPolymer MaterialsElectrolyte MaterialsElectrolyte SolutionsIon Transport In ElectrolytesIon-conducting MaterialsIonic ConductivityIonic PolymersAlkali Metal ChemistryConductivity Of Electrolyte SolutionsElectrolyte ConductivityElectrolytesIonic Conductivity In PolymersPolymer Electrolyte ImpedancePolymer ElectrolytesSalt Concentration Effects
The effect of the type of alkali metal cation and salt concentration on ion−ion and ion−polyether interactions has been examined for poly(ethylene glycol) (PEG)-MSCN (M = Li, Na, K) electrolytes by means of impedance spectroscopy, DSC, rheological, and FT-IR techniques. Studies were performed in wide salt (from 10 -5 to 5 mol/kg PEG) and temperature (from 20 to 90 °C) ranges. It is shown that for low salt concentrations of approximately up to 10 -3 mol/kg PEG and for high salt concentrations (>1 mol/kg PEG), conductivities measured for LiSCN-doped electrolytes are higher than those for other systems. In the intermediate salt concentration range, the conductivities of all electrolytes studied are comparable.
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