STRUCTURAL INVESTIGATION OF MOLYBDENUM LITHIUM VANADIUM PHOSPHATE AS A CATHODE MATERIAL FOR LITHIUM ION BATTERIES TO BE USED FOR ENERGY STORAGE

Abstract

With the passage of time the world has endured various calamities, ranging from atmospheric pollution to rise in earth`s temperature, caused by prolonged periods of global warming. Excessive usage of fossil fuels for energy production has largely contributed to the global warming. Furthermore, it has resulted in depletion of reserves. Transportation industry is the one of the major contributors of global warming via exhaust fumes. With the advancement in technology, electric vehicles seem to be the only sensible option which can help curb the emission of dangerous fumes that are leading to global warming. Batteries are the major component of electric vehicles which are the energy source for them to move. Lithium ion Batteries are the most promising energy storage systems for electric vehicles. Cathode part of batteries are the ones that play decisive role in deciding the storage capacity of a battery. LiCoO2 was the first commercial cathode material to be used in Lithium ion Batteries but it had some drawbacks in the form cost and safety. So, scientists are the working for the alternative materials to overcome these drawbacks. Lithium vanadium phosphate (Li3 V2 (PO4)3) has emerged as a good option for a cathode material its attractive electrochemical properties, including high specific energy, high working voltage, good cycle stability, and low price. We added various amount of Molybdenum in to Lithium vanadium phosphate (Li3 V2 (PO4)3) using hydrothermal synthesis. Characterization of the material was performed by using X-ray powder diffraction (XRD), SEM, EDS and thermogravimetric analysis (TGA). When the results were compared with the results of principal sample i.e Lithium vanadium phosphate (Li3 V2 (PO4)3) it was seen that there was change in structure from crystalline to amorphous.