Novel waterborne polyurethane based electrolytes for lithium batteries-(IV). The influence of DMPA/PEG ratios on conductivity

Tsung Tien Cheng, Ten-Chin Wen

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

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 50 wt% propylene carbonate (PC) and 1M LiClO4/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 ~10-5 S/cm and ~10-4 S/cm, respectively.

原文English
頁(從 - 到)327-335
頁數9
期刊Journal of the Chinese Institute of Chemical Engineers
29
發行號5
出版狀態Published - 1998 9月

All Science Journal Classification (ASJC) codes

  • 化學工程 (全部)

指紋

深入研究「Novel waterborne polyurethane based electrolytes for lithium batteries-(IV). The influence of DMPA/PEG ratios on conductivity」主題。共同形成了獨特的指紋。

引用此