<p>The remarkable performance properties of supercapacitors, such as rapid charging, high power densities, extended operational life, and safety, have generated a lot of attention and are expected to be a crucial component of future self-sustained systems. The application of supercapacitors in energy storage has been restricted because of their poor energy densities. The low energy densities of supercapacitors have prompted study into ways to increase their energy densities. The performance of supercapacitors is mostly determined by the type of electrolytes and electrode materials utilized in their design. In an attempt to address the low energy density problem of supercapacitors and improve their performance, new materials with improved characteristics are now being researched. Two material classes that have dominated the energy storage community with applications in supercapacitors are oxide spinel and chalcogenide materials, with the general formulas AB₂O₄ and MX₂, respectively. This paper compares for the first time the electrochemical performance of chalcogenide and spinel materials in supercapacitor applications. Based on previous findings, this study assessed the electrochemical performance of chalcogenide and spinel materials, including cycle stability, energy density, power density, and specific capacitance. The results show that in supercapacitor applications, chalcogenide materials are superior materials. The superiority of chalcogenides are attributed to the interlayer structure of the crystal lattice. Based on the results, it is suggested that combining advantages of both class of materials to create hybrid materials could improve supercapacitors’ stability and performance even further.</p>