<p>While faced with an energy shortage, energy storage devices provide the most versatile answer. Overcoming the setbacks in efficiency and sustainability requires the discovery of novel nanomaterials. In this work, we detail the fabrication of hierarchical nanoflowers of ZnCo₂O₄/MoS₂/rGO ternary composites for use as supercapacitor electrodes. Weak hydrothermal synthesis of ZnCo₂O₄/MoS₂/rGO nanohybrids followed by synthesis of pure phase and flower-shaped ZnCo₂O₄/MoS₂ nanosheets. We used scanning and transmission electron microscopy to examine the ZnCo₂O₄/MoS₂/rGO microstructure. Electrochemical experiments reveal that compared to isolated ZnCo₂O₄ or MoS₂, the heterostructure has a higher specific surface area and a greater number of electroactive centres. At a current density of 1 Ag⁻¹, the heterostructure nanocomposite electrode reaches a maximum specific capacitance of 1717 Fg⁻¹ while using 1 M KOH as the electrolyte. The initial capacitance maintains a value of 94.7% even after 10,000 cycles with a current density of 1 Ag⁻¹. The use of nanohybrid and activated carbon as the positive and negative electrodes in an asymmetric supercapacitor cell (ASC) resulted in a high specific energy of 47.5 Wh kg⁻¹ and a specific power of 1250 W kg⁻¹. This could be due to hierarchical structure and low equivalent series resistance, the ZnCo₂O₄/MoS₂/rGO nanohybrid exhibited outstanding electrochemical characteristics. Its remarkable electrochemical characteristics have made it a popular topic in the study of electrode materials for supercapacitors.</p>