Figure 15
From: A sustainable bio-based char as emerging electrode material for energy storage applications

Nyquist diagrams for HyBS sample at stationary potential (OCP) (black-experimental; green-fitted). The figure presents the complex plane (the imaginary component -Zimaginary vs. the real component Zreal of impedance) for the HySB sample made at open circuit potential (dotted line) and fitted results corresponding to equivalent electric circuit presented in Fig. 14 (green straight line).