• 作者： Cheng, Tsung-Tien; Wen, Ten-Chin
• 中文摘要： 本文以循環伏安掃瞄(CV)、線性伏安掃瞄(LSV)與定電位極化法(CA)研究水性聚酯(WPU)電解質與鋰金屬之介面行為。-3V-3V間之CV結果於正向掃瞄時呈現三個氧化波峰，在負向掃瞄時呈現兩個還原波峰，顯示鋰離子自電極剝離程序和沈積在電極的程序有相當大的差異。針對電解質與鋰金屬介面現象，我們提出一系列的結構圖式以解釋CV實驗結果。此外，根據LSV和CA實驗結果，顯示WPU電解質在穩定度方面電化學氧化電壓高達4.25V(相對於Li/Li/sup +/參考電極)，且高分子側鏈上的陰離子官能基並不會影響電解質長時間極化時的性質。
• 英文摘要： The interfacial behavior between waterborne polyurethane (WPU) electrolyte and lithium was investigated using cyclic voltammetry(CV), linear sweep voltammetry (LSV) and chronoamperometry (CA). CV results between -3V and 3V show three peaks on the positive sweep and two peaks on the negative sweep, indicating that the lithium stripping process is quite different from its depositing process. A series of schematic diagrams of interfacial phenomena between WPU electrolyte and lithium metal is proposed to help in interpreting the CV results. Based on the LSV and CA results, our prepared WPU electrolyte showed the electrochemical stability up to 4.25V and the pendant anions do not affect the long term polarization of this electrolyte.
• 中文關鍵字： 電解質; 水性聚胺酯; 環循伏安法; 線性掃描伏安法; 時間電流滴定法; 鋰電池
• 英文關鍵字： Electrolyte; Waterborne Polyurethane; Cyclic Voltammetry; Linear Sweep Voltammetry; Chronoamperometry; Lithium Battery