Please use this identifier to cite or link to this item:
|Title:||Structural and Electrochemical Properties of LiNi0.5 Mn 0.5 O2 thin-film electrodes prepared by pulsed laser deposition|
|Authors:||Xia, H. |
|Source:||Xia, H., Meng, Y.S., Lai, M.O., Lu, L. (2010). Structural and Electrochemical Properties of LiNi0.5 Mn 0.5 O2 thin-film electrodes prepared by pulsed laser deposition. Journal of the Electrochemical Society 157 (3) : A348-A354. ScholarBank@NUS Repository. https://doi.org/10.1149/1.3294719|
|Abstract:||LiNi0.5 Mn0.5 O2 thin-film electrodes have been prepared by pulsed laser deposition followed by postannealing at different temperatures. The microstructural and morphological characterizations using X-ray diffraction, field-emission-scanning electron microscopy, and Raman spectroscopy measurements show that the structure and phase purity of the thin films are highly dependent on the postannealing temperatures. The films that are postannealed at low temperatures exhibit a relatively lower degree of crystallinity, but a high phase purity. The electronic structure and cation disorder of the LiNi0.5 Mn0.5 O2 thin-film samples are further investigated by X-ray photoelectron spectroscopy and magnetic property measurement. The charge/discharge behaviors of the thin films that are postannealed at different temperatures indicate that phase-pure LiNi0.5 Mn0.5 O2 thin films can only be prepared at low annealing temperatures. Electrochemical impedance spectroscopy studies on thin-film electrodes indicate a strong dependence of charge-transfer resistance on the electrode potential. The rate capability and cycling stability in different voltage windows of LiNi0.5 Mn0.5 O 2 thin-film electrodes are further investigated. The relationship between the microstructure and electrochemical properties of LiNi0.5 Mn0.5 O2 thin-film electrodes has been discussed. © 2010 The Electrochemical Society.|
|Source Title:||Journal of the Electrochemical Society|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2018
WEB OF SCIENCETM
checked on Jan 15, 2018
checked on Feb 25, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.