As I am Currently working with the solid polymer electrolytes. When I increase concentration of ionic liquid semicircle in my nyquist plot disappears. While doing EIS at higher temperature same situation arises ? Please enlighten me on this.
The semi-circle is
smaller, when a higher conductivity or a smaller
charge transfer resistance (Rct) is present in the system.
If semicircle is not visible then how can I calculate bulk resistance ? @zalastukovnik
The Nyquist plot consisting of semicircle is basically consisting of bulk resistance and bulk capacitance. The disappearance of semicircle basically indicates the reduction in bulk resistance to flow of ions in the electrolyte. The disappearance of semicircle and appearance of spike is also an indication of the smaller value of Rb. To find out the Rb when Nyquist plot has the spike, take intersection of the spike at x axis, keeping both x and y axis equal or proportional.
- Badges
- Science topic
- Similar topics
- Engineering
- Electrical Engineering
- Electrodes