Patent ID: 8480917
Filing Date: 2013-07-09
Classification: C08J,C08K,C08L,F03G,H01B,H01L

Abstract:
1. A polymer film comprising: a polymer matrix comprising a crosslinked fluorine-containing polymer; and an electrolytic material dispersed in the polymer matrix, wherein the crosslinked fluorine-containing polymer is a crosslinked terpolymer comprising vinylidene fluoride as a first structural unit, a fluorine-containing monomer as a second structural unit, and a fluorine-, chlorine- or bromine-containing monomer as a third structural unit, in which the second and third structural units exclude vinylidene fluoride, and wherein the electrolytic material comprises at least one selected from the group consisting of n-butyl-3-methyl imidazolium tetrafluoroborate, n-butyl-3-methyl imidazolium hexafluorophosphate, and n-butyl-3-methyl imidazolium bis(trifluoromethanesulfonyl)imide.