Evaluation and characteristics of a blend polymer for a solid polymer electrolyte

In this study, we tried to develop two types of gel polymer electrolyte by using poly(vinylidene fluoride-co-hexafluoro-propylene)/poly(methyl methacr ylate-co-vinyI acetate) blend polymer. One was a plain gel polymer electrol yte and the other was a microporous gel polymer electrolyte that was prepar ed by activating a microporous film with an electrolyte solution of 1 M LiC lO4, in EC/PC (1:1 by vol%). The plain and porous gelled polymer electrolyt es showed high lithium ionic conductivities above 1 mS/cm and sufficient el ectrochemical stability over 4.9 V (vs. Li+/Li). (C) 1999 Elsevier Science B.V. All rights reserved.