Electrochemical performance of the bithiazole-based electrode in supercapacitor system

Supercapacitors (SCs) based on new and efficient electrode materials have been desirable and interesting topics in energy storage systems (ESS) in recent years. In this study, nanoparticles of 2,2ʹ-diamino-5,5ʹ -dimethyl-4,4ʹ-bithiazolium dibromide (DADMBTZ) were synthesized using a facile hydrothermal method. The electrode’s morphology was examined through scanning electron microscopy (SEM), which revealed a porous surface suitable for use in SC systems. To further validate and characterize the structure of the electrode, Fourier Transform Infrared (FT-IR), X-ray diffraction (XRD), and Brunauer, Emmett, and Teller (BET) analyses were conducted. The electrochemical performance was then evaluated using cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). These tests showed a specific capacitance (Cs) of 533.3 F g⁻¹, an energy density of 6 Wh kg⁻¹ at the current density of 2 A g⁻¹ with a power density of 655.5 W kg⁻¹ in the highest state. Furthermore, after 5000 consecutive charge–discharge cycles, the electrode retained 99.3% of its initial Cs. This work demonstrates the positive effect of using bithiazole-based electrodes in SCs and suggests that bithiazole-based composite electrodes will likely become more prevalent in the industry.