Supercapacitors boast an extended cycle life, making them a reliable and durable energy storage solution. These compelling characteristics have spurred extensive research and exploration in the field, with the aim of developing advanced supercapacitors for various practical applications across multiple industries. In this work, Ni0.5Cd0.5Fe2O4 ferrite nanoparticles were successfully employed using a straightforward co-precipitation technique. The samples underwent structural and morphological characterization at different annealing temperatures (400℃, 600℃, and 700℃). X-ray diffraction analysis revealed the formation of a cubic crystal structure with a preferential orientation along the (311) plane. Through TG/DT analysis, the optimal annealing temperature was determined to be 700℃, which prompted further examination of the sample annealed at this temperature. Morphological studies using SEM and HR-TEM showed well-defined nanostructures with agglomerated spherical morphology. FTIR spectroscopy indicated an absorption range of 400 to 4000cm−1 for both organic and inorganic materials. The nanoparticles' surface area was measured using the BET technique, and XPS analysis identified the elemental composition and chemical states of the constituent elements. In terms of application potential, the CV study for the sample Ni0.5Cd0.5Fe2O4 annealed at 700 °C demonstrated a high specific capacitance of 347 Fg-1 at a low scan rate of 2 mVs-1, highlighting its suitability for use in supercapacitors