Study of cathode material, LiNi0.7Co0.3-(x+y)TixSnyO2 (x=0.1;y=0.01) prepared by combustion method
Author(s) -
N. H. Zainol,
Z. Osman,
Norlıda Kamarulzaman,
Kelımah Elong
Publication year - 2016
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.4941637
Subject(s) - materials science , combustion , homogeneous , analytical chemistry (journal) , phase (matter) , crystal structure , cathode , crystallography , chemistry , thermodynamics , physics , organic chemistry , chromatography
In this work, LiNi0.7Co0.3-(x+y)TixSnyO2 (x = 0.1; y = 0.01) was prepared via a combustion method using citric acid (CA) as a reductant. The precursor obtained were annealed at 650 °C, 750 °C and 850 °C for 24h in a furnace. The observed material was characterized by XRD as a pure and single-phase of rhombohedral crystal system with R-3m space group. FESEM images of LiNi0.7Co0.3 -(x+y)TixSn yO2 (x = 0.1; y = 0.01) material show homogeneous structure with polyhedral-type crystals. The charge-discharge profile of LiNi0.7Co0.3-(x+y)TixSn yO2 (x = 0.1; y = 0.01) material was studied by applying a constant current of 1.0 mA at a voltage range of 4.2 to 2.5 V. The specific capacity of annealed LiNi0.7Co0.3 -(x+y)TixSn yO2 (x = 0.1; y = 0.01) material at 850 °C shows highest value which is 70.05 mAh/g at the 1st cycle and it decreased to 30.86 mAh/g at the 30th cycle.
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