Please use this identifier to cite or link to this item:
|Title:||Novel synthesis and electrochemical behavior of layered LiNi0.5Mn0.5O2|
Solid state reactions
|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|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 20, 2018
WEB OF SCIENCETM
checked on Apr 18, 2018
checked on May 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.