Synthesis of Li (Ni1/3Mn1/3Co1/3) O2 by Glycine Nitrate combustion process
| Autor: | T. H. N. G. Amaraweera, Deshapriya Senarathna, Athula Wijayasinghe |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Ceylon Journal of Science, Vol 45, Iss 3, Pp 21-27 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2513-2814 2513-230X |
| DOI: | 10.4038/cjs.v45i3.7397 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|