PROPERTIES OF SOLID POLYMER ELECTROLYTES BASED ON HYPERBRANCHED POLYETHER

A novel kind of polymer electrolyte based on hyperbranched polyether was prepared,and its ionic conductivity was studied by electrochemical impedance spectroscopy(EIS).The results show that adding amount of lithium salt and testing temperature both have effect on ionic conductivities of the polymer electrolytes.When the content of LiCF3SO3 is 30%,the electrolyte possesses the highest ionic conductivity,which is 5.45×10-4 S/cm at 80 ℃,1.2×10-5 S/cm and room temperature.