In this work, a supercapacitor electrode was prepared using modified ternary activated carbon (AC ODS : Ternary Olive-Date-Sugar activated carbon) by CuCoO 2 bimetallic oxide. The hydrothermal synthesis of CuCoO 2 was successfully carried out, and then the doping on activated carbon was done. Subsequently, the characterization of the hybrid material by ATR, SEM, XRD, Zeta potential, XPS, Raman, TGA, and electrochemical methods were studied in a binary electrolyte (1 M H 2 SO 4 /KCl). The electrochemical results indicate that AC ODS /CuCoO 2 modified electrode exhibits excellent pseudo-capacitive behavior, with a specific capacitance of 1052.95 F g -1 at 0.3 A g -1 and high specific energy (161.23 Wh.kg - 1 ) at high current (8 A g -1 ). High specific capacitance of 103.12 F g -1 and a specific capacitance retention reaches up to 95.41 % after 10 4 charge-discharge cycles at 20 A g -1 were also obtained. This study revealed that the activated carbon modified with CuCoO 2 oxide offers a significant improvement in the specific capacitance and the specific energy with a high specific current. Based on these results, AC ODS /CuCoO 2 can be explored as supercapacitor electrode for energy storage, and that in terms of specific capacitance, this hybrid material gives the most important result ever obtained with this oxide.