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In this study, we synthesized carbyne by a simple chemical route and then this was coated on nickel foam. On this carbyne coated nickel foam, FeCo2O4 was grown by the solvothermal process to serve as a nanohybrid electrode for supercapacitor applications. This nanohybrid electrode has shown high specific capacitance due to the large surface area, high electrical conductivity and improved rate characteristics. The specific capacitance of FeCo2O4 @ Carbyne nanohybrid electrode was about 2584.8 Fg-1 at the current density of 3 Ag-1. Furthermore, the asymmetric supercapacitor device integrated with FeCo2O4 @ Carbyne and activated carbon (FeCo2O4 @ Carbyne || AC) shows better performance with an energy density of about 96.59 WhKg-1 at a high-power density of 2.25 kW kg-1 with a capacitance decay of about 14.52 % even at 5000 cycles. These outcomes provide a new approach for the development of supercapacitors with superior characteristics.