One-step facile synthesis of Ba2V2O7 nanostructures for electrochemical behaviour improvement of symmetric supercapacitor

Abstract

In order to create energy storage systems that are quicker, more dependable and more secure, researchers are still developing new materials with extremely high performance. An easy chemical method followed by calcination is employed to create the Ba₂V₂O₇ nanostructure. This electrode has a significant capacitance of 417F/g and stable cycling with 90.6% capacitance retention even after 6000 Galvanostatic Charge-Discharge (GCD) cycles at 1A/g, which exhibits exceptional electrochemical features. These nanostructures are used to develop devices with greater functionality by serving the positive electrode and negative electrode in Ba₂V₂O₇ symmetric configuration. The as-fabricated Ba₂V₂O₇ electrode delivered the notable energy and power densities of 53.3 Wh/kg and 750 W/kg with 88 % optimistic cycle life even after 4000 cycles. The significant electrode electrochemical behaviour is due to the synergistic impacts caused by the electrode components and its unique composite network architecture, which is necessary to provide vital conductivity, rich redox behaviour, quick transfer of electrons, fast dynamics and beneficial active sites for electrochemical reactions. This research aims to provide an advanced platform for efficient and unique electrodes for cutting-edge energy storing devices and small gadgets.