• 作者： Cheng, Tsung-Tien; Wen, Ten-Chin
• 中文摘要： 本研究以改良型丙酮法製備三種水性聚酯(WPU)薄膜，其中DMPA/PEG莫爾比分別控制在0.1, 1,和3。所得乾膜及浸潤50%PC溶劑或LiCF3S03/PC電解液所成的膠態膜用以研究DMPA/PEG比例對離子導電度與導電行為的影響。離子導電度量測係以交流阻抗分析法進行，乾膜及膠態膜量測時分別以不鏽鋼及鋰金屬當電極。微差熱分析(DSC)及偏光顯微鏡(PM)等材料分析結果用以解釋不同薄膜間導電度差異的原因。膠態WPU膜與WPU電解質薄膜的室溫導電度分別達-10/sup-5/S/cm及-10/sup -4/S/cm。
• 英文摘要： Three waterborne polyurethane (WPU) films with the molar ratios of dimethylol propionic acid (DMPA) to polyethylene glycol (PEG) at 0.1, 1, and 3 were prepared by using our modified acetone process. The effects of DMPA/PEG on conductive behavior were investigated by comparing the ionic conductivity of these dry films, their gel-type films, and gel-type electrolytes. The gel-type films and gel- type electrolytes were prepared by impregnating the dry films with 50wt% propylene carbonate (PC) and 1M LiCIO/sub 4/PC, respectively. The ionic conductivity was determined by running alternating current (AC) impedance with stainless steel (SS)/dry film/SS and Li/gel film/Li cells. Differential scanning calorimetry (DSC) and polarizing microscopy (PM) were employed for material characterization to explain the reason for different conductivities. The room temperature conductivities of gel-type films and gel-type electrolytes are-10/sup 15/S/cm and -10/sup -4/S/cm, respectively.
• 中文關鍵字： 鋰電池; 電解質; 導電度; 水性聚胺酯; 單離子導體
• 英文關鍵字： Lithium Battery; Polymer Electrolyte; Conductivity; Waterborne Polyurethane; Single Ion Conductor; Dmpa/Peg