The effects of salt concentration on cation complexation in triblock-polyether electrolyte
文献情報
R. A. Silva, G. Goulart Silva, R. L. Moreira, M. A. Pimenta
Thermogravimetry and differential scanning calorimetry (TG and DSC), Raman spectroscopy and impedance measurements were performed as a function of LiCF3SO3 concentration and temperature in low molecular weight triblock-polyether (PEG-PPG-PEG)-based electrolytes. Samples were prepared in a broad range of concentrations with molar ratios O ∶ Li from 142 to 3. All the results indicated that a change in the complexation mode occurs at O ∶ Li = 21. Initially a cation complexation dominated by PEG and –OH end-capped is present, and after the saturation of these sites at O ∶ Li = 21, the complexation through the PPG block starts to occur.
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