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Reading: Synthesis of Li (Ni1/3Mn1/3Co1/3) O2 by Glycine Nitrate combustion process

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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
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Deshapriya Senarathna,

National Institute of Fundamental Studies, Hantana Road, Kandy, LK
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Athula Wijayasinghe

National Institute of Fundamental Studies, Hantana Road, Kandy, LK
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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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