Effect of electrolytes on the performance of graphene oxide anode material for ultracapacitor, Li-ion capacitor, and Li-ion battery: three-in-one approach

Abstract Graphene-based 2D nanomaterials are gaining much interest in energy storage systems, specifically ultracapacitors. Various electrolytes increase the performance of ultracapacitor (UC), Li-Ion capacitor (LIC), and battery (LIB). In present work, we have successfully designed a "three-in-one" artificial method to engineer anode from single precursor for high-performance UC, LIC, LIB. investigation, graphene oxide (GO) slurry was developed using modified Hummers’ method. The effect KOH, H 2 SO 4 , KCl on electrochemical UC demonstrated. LiPF 6 organic electrolyte solution LIC LIB is GO deposited stainless steel electrode achieved its highest specific capacitance 422 F/g, density 45.50 kWh/kg, power 10,000 W/kg 3.0 M KCl, whereas as an material delivered first discharge capacity 456 mAh/g at 0.05 A/g current with efficiency 100%.