Abstract
The combustion method for preparation of compound material like Li Co 0.5 Ni 0.45 Ag0.05 O2 cathodes is widely selected because it has the virtue of simplicity and lower cost. It was prepared by firing a mixture of stoichiometric amounts lithium nitrate (LiNO3), cobalt nitrate (Co(NO3)2.6H2O), nickel nitrate (Ni(NO3)2. 6H2O) and silver nitrates (AgNO3). The as-synthesized material was subjected to (TGA/DSC) analysis to determine the optimum range of annealing temperatures at 800, 900, and 1000 °C for 8 h. The effect of annealing on the structural and morphological features can be represented by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive scattering (EDS), and transmutation electric microscopy (TEM), powders data from this method showed the coexistence of cubic Li Ni2O4 spinel structures at 400 °C. The optimum annealing result at 900 °C with constant duration 8 hours showed a single rhombohedra layered type Li Co 0.5 Ni 0.45 Ag0.05 O2 and polycrystalline structures.
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