Enhanced high performance of aluminum/indium Co-doped lithium nickel manganese cobalt oxide for possible batteries application

Abstract

In this study, the Li[Li0.20Ni0.13Co0.13-yMn0.54-x]AlyInxO2 was synthesized via sol-gel method. electrochemical and structural attributes of nanopowders determined by the thermal analysis (TGA)/(DTA), structural analysis (XRD), (FESEM), chemical analysis (EDS) and (FTIR), BET analysis and their results appraised. X-ray diffraction analysis were performed to study the formation of nanopowders, illustrating the α- NaFeO2 structure with R¯3m space group. FESEM Figures showed that the nanopowders have a group of the cubic and the hexagonal particles. Chemical test of the EDS proved the existence of Aluminum and Indium. TGA/DTA tests for the displayed weight loss in the nanopowders. Infrared spectroscopy studied connectivity bonds and chemical elements that are utilized in the cathode. The powders with Al (y = 0.02) and In (x = 0. 01) represented the high cycling efficiency and have better discharge capacity. Li[Li0.20Ni0.13Co0.13-0.02Mn0.54-0.01]Al0.02In0.01O2 displayed the higher cycling consistency and the better capacity in collation with those of the nonreplacement powders. Electrochemical impedance spectroscopy (EIS) showed that adding the Indium-Aluminum impurities improved the electrochemical efficiency of the Li[Li0.20Ni0.13Co0.13Mn0.54]O2.