如何确定凝胶聚合物电解质的本体电阻?这是我做的一种凝胶 聚合物 电解质的Nyguist曲线,采用“ 不锈钢 //凝胶聚合物电解质//不锈钢”这种阻塞型体系测量的,看文献上求其本体电阻的方法主要有两种:(1)有的说是曲线在高频区与实轴的交点,是指的半圆左侧A处吗?是不是通过拟合将A处与实轴交点找出,即为电解质本体电阻?(注:见所附参考文献);(2)有的说是半圆右侧与直线相交拐点处所对应实轴的值,即B点处对应的横坐标即为本体电阻。到底应该是哪种?此外,还有两个问题,(1)半圆大小是不是指的电荷传递电阻的大小?(2)像我测的这种情况,模拟电阻是怎样?初涉电化学,实在搞不懂,请大神指教! 参考文献: [1] J. G. Thevenin, R. H. Muller. Impedance of Lithium Electrodes in a Propylene Carbonate Electrolyte. J. Electrochem. Soc., 1987, 134(2):273-280. [2] S. Nuur Syahidah, S.R. Majid. Super-capacitive electro-chemical performance of polymer blend gelpolymer electrolyte (GPE) in carbon-based electrical double-layercapacitors, Electrochimica Acta, 112 (2013) 678– 685 [3] Raghavan Prasanth, Nageswaran Shubha, Huey Hoon Hng, Madhavi Srinivasan, Effect of poly(ethylene oxide) on ionic conductivity and electrochemical properties of poly(vinylidenefluoride) based polymer gel electrolytes prepared by electrospinning for lithium ion batteries. Journal of Power Sources, Journal of Power Sources, 245 (2014) 283-291. [4] R.L. Lavall, S. Ferrari, C. Tomasi, M. Marzantowicz, E. Quartarone, A. Magistris, P. Mustarelli, S. Lazzaroni, M. Fagnoni. Novel polymer electrolytes based on thermoplastic polyurethane and ionic liquid/lithium bis(trifluoromethanesulfonyl)imide/propylene carbonate salt system. Journal of Power Sources 195 (2010) 5761–5767. 图片.jpg查看更多6个回答 . 3人已关注