Zinc-vanadium-nickel oxide nano-flakes in flexible biochar matrix for supercapacitors

Abstract

A capacitor includes electrodes including a composite electrode composition including zinc-vanadium-nickel oxide (ZnV2O4/NiO) (ZNV) particles, a biochar (BC), a conductive carbon (CC), and a polymer binder, a dielectric separator, and an electrolyte. The amount of ZNV particles present in the composite electrode composition is in a range from 1-20 weight percent (wt. %) relative to the combined amount of the BC, CC, and polymer binder. The specific capacitance of the composite electrode composition is greater than or equal to 150 farad per gram (F/g) measured at 1 millivolts per second (mV/s).

Dependencies are inferred from the claim text.