High Areal Capacitance of V2O3–Carbon Nanotube Electrodes

V2O3-multiwalled carbon nanotube (MWCNT) electrodes with active mass loading of 30 mg cm−2 and ratio of active material mass to current collector mass of 33% have been developed for charge storage in electrochemical supercapacitors. Good electrochemical performance at high active mass loading allowed for an electrode areal capacitance as high as 4.4 F cm−2 and low electrode resistance. This high performance was, in part, achieved using an …