[en] To accommodate large volume change of Cu₂O for improving its supercapacitor performances, Cu₂O@Ni-Al LDH core-shell structure was designed and prepared through nickel-aluminum double hydroxide grown on cubic Cu₂O via a simple solvent process. The Cu₂O core was wrapped by Ni-Al LDH shell, which provides a high specific area for electrochemical reaction. The results show that the specific capacitance and cycle stability of Cu₂O@Ni-Al LDH are superior to those of Cu₂O cubic particles. The specific capacitance of Cu₂O@Ni-Al LDH hybrid electrode was up to 389 F g⁻¹ at 1 A g⁻¹. Furthermore, a reversible capacitance of 457 F g⁻¹ was obtained after 12,000 cycles at a much higher current density of 10 A g⁻¹. The enhanced performances were ascribed to the unique core-shell structure and the synergistic effects of Cu₂O and Ni-Al LDH, which alleviated volume expansion and provided abundant electrochemical active sites.