Skip to main content
. Author manuscript; available in PMC: 2019 May 13.
Published in final edited form as: Adv Electron Mater. 2018;4:10.1002/aelm.201700593. doi: 10.1002/aelm.201700593

Figure 9.

Figure 9.

(a) Schematic showing the fabrication process of a flexible Ni/MnO2–FP positive electrode. (b) Schematic showing the device constructed with a Ni/MnO2–FP positive and a Ni/AC-FP negative electrodes with PVA/Na2SO4 electrolyte. (c) A picture shows the device’s mechanical stability. (d) A picture shows an LED illumination by two supercapacitors in series connection. (e) Measured CV curves confirming the good electrochemical characteristic of the paper electrode-based supercapacitor. Measurements are confirmed at a scan rate of 100 mV/s when potential windows are varying from 1.0 V to 2.5 V. (f) Areal and volume capacitance are determined from the measured CV curves under different potential windows. Reproduced with permission.[144] Copyright 2015, American Chemical Society.