Hw. Rhee et al., UV-CURABLE POLYMER ELECTROLYTE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 294, 1997, pp. 225-228
UV-cured polymer electrolytes were prepared based on polyethylene glyc
ol diacrylate (PEGDA). A series of PEGDA was complexed with lithium tr
iflate salt and the effect of chain length of PEG on the ionic conduct
ivity was studied at various salt concentration. The highest ionic con
ductivity at room temperature was 1.7 X 10(-5) S/cm for 14 EGDA at the
[EO]/[Li+] mole ratio of 8 which resulted from the balance between th
e number of total charge carriers and hindered mobility of polymer cha
in. Cyclic voltammogram for polypyrrole/PEGDA electrolyte/Li foil cell
showed a pair of sharp redox peaks even at room temperature.