PERFORMANCE OF ACRYLATE-POLY(ETHYLENE OXIDE) POLYMER ELECTROLYTES IN LITHIUM BATTERIES

Results for the performance of lithium/MnO2 batteries containing solid polymer electrolytes based on poly(ethylene oxide) blends with some a crylic derivatives are presented. The ionic conductivities of the elec trolytes are promising for battery application. It was found, however, that interfacial phenomena impair the battery efficiency. Impedance s pectroscopy shows resistive limitations at the anode interface of the batteries, caused either by formation of an electrically distinguishab le resistive layer or by chemical interaction between the polymer and lithium, influencing, most probably, the kinetics of the lithium oxida tion reaction.