The Addition of AI2O3 in Composite Electrolytes Consisting of Polyethylene Oxide and Polytetramethylene Glycol-Based Waterborne Polyurethane

氧化鋁添加於PTMG為基材水性聚胺基甲酸酯及PEO組成之複合式電解質研究

巫明憲(Ming-Sieng Wu) ； 溫添進(Ten-Chin Wen)

《Journal of the Chinese Institute of Chemical Engineers》 32卷1期 (2001/01) Pp. 47-56

https://doi.org/10.6967/JCICE.200101.0047

摘要

本研究乃是探討Al2O3添加對於複合式電解質的影響。複合式電解質是PEO、以PTMG為基材的水性PU、LiClO4/PC及Al2O3所組成。利用微分熱卡計（DSC）及偏光顯微鏡（PM）分析複合式電解質的材性特性，以吸收重量實驗（swollen weight）評估複合式電解質的最大吸量，並以交流阻抗分析儀（AC Impedance）來測得其離子導電度。最後組成Li/CEs/LiCoO2的薄形電池來量測其開環電位（Ocv)。實驗的結果顯示，20% PEO，20% WPU（PTMG），10% Al2O3 及50% LiClO4/PC 的複合式電解質的各項特性表現最佳。

並列摘要

Composite electrolytes (CEs) containing polyethylene oxide (PEO), polytetram-ethylene glycol based waterborne polyurethane (WPU(PTMG)), LiClO4/propylene carbonate (PC), and aluminum oxide (Al2O3) were prepared by blending. The influences of the addition of Al2O3 in CEs were investigated using the following methods. Differential scanning calorimetry (DSC) and polarizing microscopy (PM) were employed for material characterization. The swollen weight of CEs was measured to appraise the maximum tolerated in intake. Alternating current (AC) impedance was employed to obtain the ionic conductivity. Furthermore, Li/CEs/Li-CoO2 laminated cells were assembled to measure open-circuit voltages (Voc) for the application evaluation. Accordingly, the CE consisting of 20% PEO, 20% WPU(PTMG), 10% Al2o3, and 50% LiClo4/PC was found to have the best performance for all the investigated characteristics.

並列關鍵字

PEO ； Waterborne Polyurethane ； Polymer Electrolyte ； Aluminum Oxide ； Inert Additive