NiCo2O4@CFP ultrathin nanosheets without a binder were created, and they were evaluated as a cathode with carbon nanosheets doped with nitrogen. The electrode system's specific capacitance achieved 2038 F g -1 at 1.5 Ag -1 after 5000 cycles at a current density of 20 Ag -1 , with a 94% efficiency. In a PVA/KOH hydrogel electrolyte, the electrode exhibits remarkable flexibility and outstanding electrochemical properties . Ni-MOF and graphene oxide solution were produced hydrothermally by Jeonghyun Kim et al. With 90% efficiency remaining after 3000 cycles, this material's electrodes display 1154.4 F g -1 at 1 A g -1 in 6 M KOH with current densities ranging from 0.66 to 3 A g -1 . As an emerging electrode material, 2D hybrid nano sheets of Ni MOF and carbon nanotubes have been discovered. The Ni-MOF/C-CNTs material that has been developed shows good stability and a specific capacity of 680 C g -1 at 1 Ag -1 . At a power density of 440 W kg -1 , the electrode is said to be capable of holding an energy density of 44.4 W h kg -1 . .Ni/C/rGO-n is a high-performance electrochemical material that has been claimed to have a specific heat capacitance of 1258.7 F g -1 over a broad current density range of 8-20 A g -1 and a capacitance of 1087.1 F g -1 having 86% efficiency .