High Performance Supercapacitors Based on the Electrodeposited Co3O4 Nanoflakes on Electro-etched Carbon Fibers

In the present work, excellent supercapacitive behavior of nanostructured Co3O4-ECF with outstanding cycling stability and capacitance retention was observed. These characteristics can be attributed to three dimensional (3D) structures of nanoflakes which allow facile electrolyte movement during charge or discharge processes. A specific capacitance of 598.9 F g(1 at a currents density of 3.1 A g(1 was obtained for Co3O4-ECF electrode in addition to high energy and power densities.