<p>We present the fabrication of hierarchical CuCo₂S₄@CuCo₂S₄@SS nanosheet directly grown on a stainless steel current collector by successive ionic layer adsorption reaction (SILAR) after a straightforward hydrothermal approach. The electrochemical performance of CuCo₂S₄@CuCo₂S₄@SS was evaluated in comparison with bare CuCo₂S₄ synthesized using only SILAR method and hydrothermal method. Comparison was also drawn between SILAR modified CuCo₂S₄@CuCo₂S₄@SS and hydrothermally modified CuCo₂S₄@CuCo₂S₄@SS. X-ray Diffraction analysis shows fairly increased crystallinity for CuCo₂S₄@CuCo₂S₄@. CuCo₂S₄@CuCo₂S₄@SS has unique hierarchical core-shell structure and enormous surface area compared to bare CuCo₂S₄. BET surface area for SILAR modified CuCo₂S₄@CuCo₂S₄@SS is calculated to be 93.4 m²/g compared to 68.1 m²/g for bare CuCo₂S₄ and 86.1 m²/g for hydrothermally modified CuCo₂S₄@CuCo₂S₄@SS. Electrochemical test carried out in 1.0&#xa0;M of KOH in three electrodes configurations exhibited specific capacitance of 2084.0, 2243.4, 2529.7, and 2942.0&#xa0;F/g for CCS 1, CCS 2, CCS 3, and CCS 4 was respectively at 1.0&#xa0;A/g while CCS 4 showed good capacitive retention of 89.8% after 5000 cycles. The hierarchical mesopores and large active sites as well as the overall enriching features of the CuCo₂S₄ core-shell nanosheet structure grown (CuCo₂S₄@CuCo₂S₄@SS) contribute to the instant electron/ion transfer and high electrochemical performance of the electrodes. The findings imply that CuCo2S4@CuCo2S4@SS electrodes can conveniently be applied in the energy storage.</p> Graphical Abstract <p></p>