本實驗合成出四級胺鹽化矽烷，經由FT-IR與1H-NMR鑑定，將其以溶膠凝膠法導入聚醚/矽氧烷的交聯高分子系統中，製成離子化之聚醚/矽氧烷交聯高分子電解質，其化學穩定性可達4.5V且熱裂解溫度約400℃，極限氧指數達24。由SEM觀察與TGA測量可得知在四級胺鹽矽烷比例增加至3/4時有微相分離的情形，高分子膜表面出現塊狀物的分布。從DSC的觀察可知聚醚/矽氧烷膠態高分子電解質隨著四級胺鹽矽烷的加入，Tg逐漸下降，其30℃導電度從未加入四級胺鹽2.18*10-4 S cm-1大幅提升至5.93*10-3 S cm-1，而在鋰離子遷移數上也可達0.568。在正極半電池測試中5C放電時，可保有接近90 mAh/g放電電容值，全電池應用上在1C放電時與Celgard-M824一樣擁有約100mAh/g的電容值，可得知其為一提升鋰離子遷移數且可應用於鋰電池的高分子電解質。

Synthesis of quaternary ammonium salt has been accomplished and characterized with 1H-NMR and FTIR. And this quaternary ammonium salt is added to polyether/siloxane networks via sol-gel approach to form Ionized Gel Polymer Electrolytes based on Crosslinked polyether-Siloxane Hybrids. From SEM analysis and TGA test, we find out microphase separation in polymer system when the proportion of quaternary ammonium salt increases to three quarters. The ionic polymer electrolytes has great electrochemical window and thermal stability up to 4.5 V (vs. Li/Li+) and 400℃. The DSC results indicate that the glass transition temperature of ionic gel polymer electrolyte decreases with the addition of quaternary ammonium.Then the ionic conductivity of ionic polymer electrolyte is enhanced to 5.93*10-3 S cm-1 at 30℃, compared to that of the original polyether/siloxane hybrid(2.18*10-4 S cm-1). Furthermore, the lithium-ion transference number of ionic gel polymer electrolyte is up to 0.568. For battery application, the half-cell specific discharge capacity of gel polymer electrolyte increase from 35mAh/g to 90mAh/g at 5C with the addition of quaternary ammonium salt. Moreover, the full-cell performance of gel polymer electrolyte is as good as commercial separator (100mAh/g at 1C). The above advantages of the ionized gel polymer electrolytes allow it to act as a separator in lithium-ion battery.

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