EFFECT OF CROWN-ETHERS ON THE CONDUCTIVITY OF SOLID ELECTROLYTES BASED ON POLY(ETHYLENE OXIDE)

A number of solid polymeric electrolytes (SPE) based on LiClO4 and pol y(ethylene oxide) (PEG) with addition of 15-crown-5, benzo-15-crown-5, and 2,4-dioxo-16-crown-5 was synthesized and studied. By the electric al impedance method, it was shown that some samples obtained possessed the enhanced conductivity of an order of 10(-4)-10(-3) S/cm at the am bient temperature, good compatibility with the lithium anode, and stab ility during long-term storage. It was found that addition of 15-crown -5 and 2,4-dioxo-15-crown-5 into SPE based on PEO drastically (by 2 or ders of magnitude) improves the characteristics of the SPE, whereas be nzo-15-crown-5 does not affect the conductivity of this electrolyte.