fig2
From: Revealing energy storage mechanism of CsPbBr3 perovskite for ultra-stable symmetric supercapacitors
Figure 2. Nyquist plot of the CsPbBr3 electrode in 1 M TBAPF6 electrolyte in (A) Low and (B) high-frequency region. The insert is the enlarged curve at the high-frequency region and the equivalent electric circuit. (C) the CV curves of CsPbBr3 electrode in 1 M TBAPF6 at different scan rates. (D) the charge and discharge curves of CsPbBr3 electrode in 1 M TBAPF6 at different current densities. All the tests were performed in a three-electrode system in air.
