<p>Multi-dimensional nanostructures could enhance the specific surface area, accelerate ions and electrons transport, and expose numerous electroactive sites of the electrode materials. Herein, the flower-like CuCo₂O₄@NiCo LDH nanostructures were produced in situ on nickel foam. Firstly, the CuCo₂O₄ nanowire arrays were grown on Ni Foam by hydrothermal and calcination methods. Then, the NiCo LDH nanosheets were grown on CuCo₂O₄ nanowires via the hydrothermal method. The CuCo₂O₄ nanowire arrays and NiCo LDH ultrathin nanosheets were interconnected to obtain the CuCo₂O₄@NiCo LDH flower-like nanostructures, providing a broadly accessible contact surface, effective paths for electron/ion transport, and numerous activity sites for faradic redox processes. Furthermore, the CuCo₂O₄@NiCo LDH composite fully utilized the electrochemical activity of CuCo₂O₄ and affinity for OH⁻ of NiCo LDH, contributing to the improved electrochemical performance. Consequently, the CuCo₂O₄@NiCo LDH electrode exhibited a high specific capacity of 1133.0 C g⁻¹ (1 A g⁻¹), an excellent rate capability of 59.0% at 20 A g⁻¹ as well as a superior cycling stability of 85.2% at 6 A g⁻¹ for 7000 cycles. Furthermore, the integrated CuCo₂O₄@NiCo LDH//AC asymmetric supercapacitor delivered a high energy density of 50.8 Wh kg⁻¹ at the power density of 800 W kg⁻¹ and obtained a superior capacitance retention of 91.7% after 10,000 cycles.</p>