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Polymer electrolytes composed of star-branched poly(ethylene oxide) PEO with addition of LiN(CF 3 SO 2 ) 2 salt (LiTFSI) of molar ratios EO:Li ranging from 1:1 to pure polymer were prepared by casting from solution. The electrolytes are studied by impedance spectroscopy and impedance spectroscopy performed simultaneously with optical microscope observation. Star-branched structure...
Polymer electrolytes formed from high molecular weight poly(ethylene oxide) with dissolved LiN(CF 3 SO 2 ) 2 salt were obtained by casting from solution. The compositions ranging from 16:1 to 8:1 EO:Li molar ratio were studied by the X-ray diffraction and by impedance spectroscopy simultaneously with polarizing microscope observation. Crystallization processes and the resulting...
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