Polymer electrolytes comprising organometallic compounds

摘要

Composite polymeric electrolytes based on PEO complexes and ethyl aluminum alkoxides have been studied. The addition of the aluminum compounds causes a considerable reduction in the PEO crystalline phase content and provides very good mechanical and thermal stability up to 140℃. The glass transition temperatures of blends are low, falling within the - 64 to - 29℃ range. The ionic conductivity of such systems reaches the value of 10{sup}(-5) S cm{sup}(-1) at ambient temperature and that of 10{sup}(-3) S cm{sup}(-1) at 60-70℃. Impedance studies show that these systems form a passive layer with a lithium electrode, which protects this electrode from corrosion processes.