【摘要】 碳酸丙烯酯 (PC)在凝胶因子 4 ,4′ 二 (硬脂酰胺基 )二苯醚 (BSDE)的作用下形成分子凝胶。交流阻抗法研究发现 ,含二 (三氟甲基磺酰 )亚胺锂 (LiTFSI)的PC分子凝胶在室温下的电导率达 5 .5 6× 1 0 -3 S·cm-1 。在较低温度下 (≥ - 35℃ ) ,温度对分子凝胶电导率的影响比其溶液电解质的影响大。在 - 35℃时 ,含LiTFSI的PC分子凝胶的电导率为 5 .91× 1 0 -5S·cm-1 。以不锈钢电极为工作电极 ,锂电极为参比电极 ,用循环伏安法 ,测定PC分子凝胶电解质体系的电化学稳定窗口为 0 .0～ 4 .7V。更多还原

【Abstract】 A study on the electrochemical behaviour of propylene carbonate (PC) molecular gel electrolyte formed by the aggregation of the gelator 4,4′ bis(stearoylamino)diphenyl ether(BSDE) was carried out by means of AC impedance and cyclic voltammetry .The results of altarnating current (AC) impedance measurement indicated that the ionic conductivities was 5.56 ×10 -3 S/cm at room temperature for PC molecular gel electrolyte . At lower temperature (≥-35℃), the ionic conductivities of the PC molecular gel electrolyte were more effected by temperature than that of the PC solution electrolyte. At -35℃, the ionic conductivity of PC/BSDE/ LiTFSI system was 5.91×10 -5 S·cm -1 . The electrochemical stability window measured by method of cyclic voltammetry had of 0.0V～4.7V versus Li +/Li.更多还原