FIELD: chemistry.
SUBSTANCE: invention relates to electroconductive films which can be used in electronic devices, accumulators and supercapacitors. Electroconductive film has a polymer component of a polyvinylidene fluoride-hexafluoropropylene copolymer, an electroconductive lithium tetrafluoroborate component and ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate. Film has a degree of crystallinity of 20-22% and a glass transition temperature of 110-115 °C.
EFFECT: obtaining an electroconductive film with improved properties on ion conductivity and thermal stability in a wide temperature range.
1 cl, 3 dwg, 1 tbl
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