TY - JOUR
T1 - Electrochemical properties of LiNi.0.50Co0.25Mn0.25O2 thin film cathodes prepared by pulsed laser deposition
AU - Deng, Jianqiu
AU - Chung, C. Y.
AU - Han, Xiaodong
AU - Zhong, Yan
AU - Wang, Zhongmin
AU - Zhou, Huaiying
PY - 2013/2
Y1 - 2013/2
N2 - LiNi.0.50Co0.25Mn0.25O2 thin film cathodes are successfully prepared by pulsed laser deposition technique with post-annealing treatment. The microstructure of the thin films is characterized by X-ray diffraction, environmental scanning electron microscopy, X-ray photoelectron spectroscopy and atomic force microscopy. The electrochemical performance of the thin film electrodes is evaluated by cyclic voltammetry and charge-discharge cycling tests. LiNi.0.50Co0.25Mn0.25O2 thin film electrodes deliver good electrochemical performance. The initial discharge capacity of the thin film electrodes is 122 mAhg-1 measured at a rate of 0.5C in the voltage range of 2.8-4.3 V. The coulombic efficiency is beyond 94% in addition to the first charge-discharge cycle. The chemical diffusion coefficients of lithium ions in the thin film electrodes are in the range of 10-11 - 10-13 cm2s-1 determined by galvanostatic intermittent titration technique (GITT) method. © 2013 by ESG.
AB - LiNi.0.50Co0.25Mn0.25O2 thin film cathodes are successfully prepared by pulsed laser deposition technique with post-annealing treatment. The microstructure of the thin films is characterized by X-ray diffraction, environmental scanning electron microscopy, X-ray photoelectron spectroscopy and atomic force microscopy. The electrochemical performance of the thin film electrodes is evaluated by cyclic voltammetry and charge-discharge cycling tests. LiNi.0.50Co0.25Mn0.25O2 thin film electrodes deliver good electrochemical performance. The initial discharge capacity of the thin film electrodes is 122 mAhg-1 measured at a rate of 0.5C in the voltage range of 2.8-4.3 V. The coulombic efficiency is beyond 94% in addition to the first charge-discharge cycle. The chemical diffusion coefficients of lithium ions in the thin film electrodes are in the range of 10-11 - 10-13 cm2s-1 determined by galvanostatic intermittent titration technique (GITT) method. © 2013 by ESG.
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U2 - 10.1016/S1452-3981(23)14263-5
DO - 10.1016/S1452-3981(23)14263-5
M3 - RGC 21 - Publication in refereed journal
SN - 1452-3981
VL - 8
SP - 1770
EP - 1777
JO - International Journal of Electrochemical Science
JF - International Journal of Electrochemical Science
IS - 2
ER -