Abstract:
The synergy of nanomaterials in a hybrid system allows the creation of high-performance energy storage devices. In the current study, hybrid systems incorporating V2O5/MWCNT’s are manufactured and explored as cathode materials for lithium-ion batteries to intrinsically increase the lithium storage capabilities of layered structure V2O5. When compared to Li/Li+, the V2O5/MWCNT’s electrode exhibits a greater initial discharge capacity of 329 mAhg-1 and columbic efficiency of 97 percent varying between 1.5 V to 4.2 V at 0.1 C. The produced electrode has a reversible capacity of 217 mAhg-1 at 0.1 C after 100 cycles and 106 mAhg-1 at 1 C after 500 cycles, having the capacity retention rate of 84.7 and 80.9 percent, respectively. Electrochemical impedance spectroscopy (EIS) and density functional theory further confirms greater kinetics of the V2O5/MWCNT’s electrode (DFT). The electrode's increased and efficient performance is due to the synergy between V2O5 and MWCNT’s, which allows for a suitable channel for rapid Li+ ions diffusion while reducing strain caused throughout the charge/discharge process. The current research implies that the V2O5/MWCNT’s hybrid system may be used as cathode to build LIBs with high-rate capability as well as long cycle life.
