In an attempt to prepare a polymeric solid electrolyte with both high ionic conductivity at ambient temperature and adequate mechanical strength
an ionic conducting IPN composed of bisphenol A epoxy resin/polyethylene glycol containing LiClO
4
was synthesized. The dependence of conductivity was investigated as a function of salt content
composition and temperature. It has been revealed that a maximum of conductivity appeared when EO/Li=25
where EO denotes the—(CH
2
CH
2
O)-unit in polyethylene glycol
and that the temperature dependence of conductivity followed VTF equation
suggesting that the motion of ionic carriers resulted from the segmental motion of the polymer. When glycerol epoxy resin was used instead of bisphenol A epoxy
the ambient temperature (25℃) conductivity could somewhat further be raised up to 3×10
-5
S/cm.
Abstract
In an attempt to prepare a polymeric solid electrolyte with both high ionic conductivity at ambient temperature and adequate mechanical strength
an ionic conducting IPN composed of bisphenol A epoxy resin/polyethylene glycol containing LiClO
4
was synthesized. The dependence of conductivity was investigated as a function of salt content
composition and temperature. It has been revealed that a maximum of conductivity appeared when EO/Li=25
where EO denotes the—(CH
2
CH
2
O)-unit in polyethylene glycol
and that the temperature dependence of conductivity followed VTF equation
suggesting that the motion of ionic carriers resulted from the segmental motion of the polymer. When glycerol epoxy resin was used instead of bisphenol A epoxy
the ambient temperature (25℃) conductivity could somewhat further be raised up to 3×10
-5
S/cm.
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