ELECTRODE MANUFACTURING PROCESS BASED ON ACTIVATED CARBON AND MXene / CuS RATIO ENGINEERING TO IMPROVE SUPERCAPACITOR PERFORMANCE

Abstract

This invention concerns the field of advanced materials and energy storage technology, specifically the process of manufacturing electrodes based on activated carbon (AC) and MXene / CuS for supercapacitor applications. This invention aims to produce electrodes with more optimal electrochemical performance by adjusting the composition ratio of active materials. The manufacturing process begins with the synthesis of MXene / CuS using a direct hydrothermal method with MXene precursors, copper nitrate hydrate, and thioacetamide without the formation of MOF precursors. Next, MXene / CuS is combined with activated carbon through the creation of a slurry consisting of active materials, carbon black, and PVDF, then deposited on a copper foil substrate using the doctor blade method. The active material is made with variations in the ratio of activated carbon and MXene / CuS, namely 75% AC: 25% MXene / CuS, 50% AC: 50% MXene / CuS, and 25% AC: 75% MXene / CuS.The combination of these three materials produces a synergistic effect where activated carbon plays a role in increasing structural stability and cycle stability, MXene increases electron conductivity, and CuS contributes pseudocapacitance through redox reactions, resulting in an AC / MXene / CuS electrode with a simple manufacturing method and increased energy storage capability for supercapacitor applications.