<p>Supercapacitors are hampered by a number of limitations in practical applications, including lack of diversity, tendency to form electrolytic products, high charge transfer resistance, and substandard cycling stability. In this study, a novel open and efficient 3D nano-array structure of CC/NiFeP@CuCo-LDH (CC/NiFeP combined with CuCo-LDH composite is developed by a simple two-step hydrothermal method. Using the CC/NiFeP@CuCo-LDH//AC asymmetric supercapacitor as the positive electrode and the AC electrode as the negative electrode. Its specific capacitance reaches 756 F g⁻¹ with a retention rate of 83.5% at a current density of 20 A g⁻¹, a retention energy density of 986.5 W kg⁻¹ at an energy density of 61.6 Wh kg⁻¹, and a capacity retention rate of 94.4% after 5000 charge/discharge cycles. The excellent capacitive performance of the composite electrode is attributed to its interwoven and interconnected three dimensional network structure that enhances the electrochemical reaction kinetics. This study provides a novel and innovative approach for the optimization of supercapacitor electrode materials, which is of great significance in promoting the development of energy technologies.</p> Graphical Abstract <p></p>