초록 |
Solid-state polymer electrolytes with core-shell structured silica filler having boronic ester are prepared for the application of lithium-ion batteries. By modifying the surface of silica core with boronic ester attached PEG shell, dispersity and compatibility are enhanced as well as lithium transference number increases because of Lewis acid character of boron moieties. Boron moieties act as an anion-trap, thus improving the cation transport property of electrolyte materials. As a result, high ionic conductivity reaching to 10-4 S/cm at room temperature was achieved. |