摘要
制备了PAN基凝胶聚合物电解质及PAN基凝胶聚合物超级电容器.采用交流阻抗法测量了凝胶聚合物电解质的离子电导率.采用交流阻抗、循环伏安、恒流充放电等测试方法研究了凝胶聚合物电解质超级电容器的性能,并对交流阻抗谱进行了模拟分析.结果表明,PAN基凝胶聚合物电解质的电导率在室温下可达7.54m s.cm-1,以活性炭为电极材料,内聚合的方式制备的PAN基凝胶聚合物电解质电容器的工作电压可达2.5V,内阻为8.92-12.6Ω.cm2,比容量达20.6 F/g(i=0.5 mA/cm2).
Polyacrylonitrile （PAN） based gel polymer electrolytes （GPEs） were synthesized. PAN-based gel polymer electrolytes supereapaeitors were also fabricated. The behaviors of GPEs were measured by AC impedance. The properties of PAN based GPEs capacitors were studied by impedance spectrum,cyclic vohammetry,constant current charge/discharge. Impedance spectra were analysed by simulating equivalent circuit. The result showed that the eonduetivities of the PAN-based gel polymer electrolytes can be as high as 7.54mS cm^-1 at ambient temperature. With aetived carbon electrodes,the working voltage of the supereapacitors can be as high as 2.5V. The internal resistance of the capacitors were just 8.92 - 12.6Ω·cm^2. The specific capacitance of the supereapaeitors with PAN-based gel polymer electrolytes was obtained as high as 20.6F/g（i =0.5mA/cm^2） .
出处
《应用科技》
CAS
2006年第11期61-65,共5页
Applied Science and Technology
基金
哈尔滨工程大学基础研究基金资助项目(HEUF04064)
