Research Articles
Synthesis of Li (Ni1/3Mn1/3Co1/3) O2 by Glycine Nitrate combustion process
Authors:
T. H. N. G. Amaraweera,
National Institute of Fundamental Studies, Hantana Road, Kandy, LK
About T. H. N. G.
Department of Science and Technology, Uva Wellassa University, Badulla
Deshapriya Senarathna,
National Institute of Fundamental Studies, Hantana Road, Kandy, LK
Athula Wijayasinghe
National Institute of Fundamental Studies, Hantana Road, Kandy, LK
Abstract
Glycine Nitrate Combustion (GNC) method was successfully employed for the synthesis of Li(Ni1/3Mn1/3Co1/3)O2 with powder characteristics appropriate for the cathode of rechargeable Li-ion batteries (LIBs). The outcome of this study proposed an optimum value of 0.6 for the Glycine: Nitrate ratio to obtain phase pure, well crystalline and rather spherical shaped Li(Ni1/3Mn1/3Co1/3)O2 micron size secondary particles by the GNC process. These secondary particles were composed of softly agglomerated primary particles of 200 - 300 nm in size. This particle morphology is regarded as a highly favorable for the functioning as a cathode in LIB. The electrical conductivity of Li (Ni1/3Mn1/3Co1/3) O2, determined by the dc four-probe technique, revealed the semiconducting nature with conductivity of the order of 10-7 S cm-1, at 25 °C. Lithium ion half-cell constructed with this prepared cathode material showed initial discharge capacity of 187 mAhg-1 with irreversible capacity of 25 mAhg-1 at C/5 rate with a cut-off voltage of 2.5 - 4.6 V, at 25 °C. This performance can be attributed to the highly favorable particle morphology obtained by the successful use of GNC process for the powder synthesis.
How to Cite:
Amaraweera, T. H. N. G., Senarathna, D., & Wijayasinghe, A. (2016). Synthesis of Li (Ni1/3Mn1/3Co1/3) O2 by Glycine Nitrate combustion process. Ceylon Journal of Science, 45(3), 21–27. DOI: http://doi.org/10.4038/cjs.v45i3.7397
Published on
30 Nov 2016.
Peer Reviewed
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