Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.jallcom.2006.02.097
Title: | Novel synthesis and electrochemical behavior of layered LiNi0.5Mn0.5O2 | Authors: | Xia, H. Tang, S.B. Lu, L. |
Keywords: | Electrode materials Lithium-ion batteries Solid state reactions X-ray diffraction |
Issue Date: | 31-Jan-2008 | Citation: | Xia, H., Tang, S.B., Lu, L. (2008-01-31). Novel synthesis and electrochemical behavior of layered LiNi0.5Mn0.5O2. Journal of Alloys and Compounds 449 (1-2) : 296-299. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jallcom.2006.02.097 | Abstract: | A novel and simple solid state synthesis of layered LiNi0.5Mn0.5O2 directly from a mixture of LiOH, NiO and MnO2 prepared by ball milling is reported. The mixtures of precursors were heated at temperatures from 400 to 1000 °C in air to synthesize the compound. The heat treatment process and the crystal structure of the synthesized material were investigated by TG/DTA and X-ray diffraction (XRD) methods. The well-crystallized LiNi0.5Mn0.5O2 powder of single phase was prepared at 1000 °C. Morphology of the synthesized material was investigated using field emission scanning electron microscopy (FESEM). X-ray photoelectron spectroscopy (XPS) and cyclic voltammetry (CV) measurements were carried out on the synthesized LiNi0.5Mn0.5O2 powder suggesting that the oxidation states of Ni and Mn in LiNi0.5Mn0.5O2 be +2 and +4, respectively. Galvanostatic charge-discharge behavior of the Li/LiNi0.5Mn0.5O2 cell in the voltage range 2.5-4.3 V at a current rate of 0.1 mA cm-2 exhibited a stable discharge capacity of ∼120 mAh g-1 with a very small capacity fading for 10 cycles. © 2006 Elsevier B.V. All rights reserved. | Source Title: | Journal of Alloys and Compounds | URI: | http://scholarbank.nus.edu.sg/handle/10635/85491 | ISSN: | 09258388 | DOI: | 10.1016/j.jallcom.2006.02.097 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.