<p>The ever-escalating demands for electrochemical supercapacitors in contemporary energy systems are widely acknowledged, but their practical use is still hindered by ongoing performance and long-term stability issues. In the present work, a simple wet chemical route has been used to synthesize Bi₂MoO₆ nanoplates for supercapacitor applications. The XRD and FTIR analyses confirmed the successful formation of high-purity Bi₂MoO₆ nanoplate powders at 400 ℃. The unique nanoplate structure of Bi₂MoO₆ contributes to a significant specific surface area. It achieved a high specific capacitance of 2.8695 F g⁻¹ at a current density of 0.6 A g⁻¹. Even after 10,000 cycles, it retained over 61.07% of its capacitance and maintained a coulombic efficiency greater than 98.82%. The developed Bi₂MoO₆ solid-state supercapacitor (SSC) demonstrated a specific capacitance of 0.1401 F g⁻¹ at a current density of 0.6 A g⁻¹. Moreover, it showed enhanced capacitance retention of approximately 74.61% with a coulombic efficiency of 99.76% even after 10,000 cycles which shows its optimal behavior.</p>