Background: In this paper, the supercapacitor based on the carbon nanotubes (CNTs) electrodes
has been fabricated.
Objective: The Polyvinylidene Fluoride (PVDF) and Polyvinyl Alcohol (PVA) were used as a gel electrolyte.
Methods: The electrodes and electrolytes thin films were characterized by Scanning Electron Microscopy
(SEM) and Transmission Electron Microscopy (TEM). The specific Capacitance (Cs) of the
CNTs-based supercapacitor has been measured using the cyclic voltammetry and galvanostatic methods.
For the scan rate, 20 mV s-1 the Cs of the CNTs-based supercapacitor was 173 F g-1.
Results: Using the electrochemical impedance spectroscopy the Nyquist curve has been plotted. The
reactance capacitance and the equivalent series resistance of the CNTs-based supercapacitor with
PVDF/PVA gel electrolytes were 90 Ω and 25 Ω respectively.
Conclusion: Also, few patents for the CNTs-based supercapacitor have been reviewed and cited. The
CNTs-based supercapacitor proposed a new structure solid-state and flexible supercapacitor with high