Abstract
The paper discusses the preparation of solid polymer electrolytes based on a blend of polyvinylidene fluoride and hydrogenated butadiene nitrile rubber with lithium bis(trifluorosulfonyl)imide prepared by solution casting technique. The films were characterized by X-ray diffraction analysis, FTIR spectroscopy, scanning electron microscopy, and differential scanning calorimetry. The influence of the polymer blend composition on the ionic conductivity of electrolytes was studied. According to the impedance spectroscopy data, it was found that the ionic conductivity of solid polymer electrolytes increases from 10-5 to 10-4 S/cm at room temperature with increasing the content of hydrogenated butadiene nitrile rubber up to 50 wt. % in the polymer blend matrix.
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