Improvement of the high-temperature, high-voltage cycling performance of LiNi0.5Co0.2Mn0.3O2 cathode with TiO2 coating

► TiO2 coating improves cycling stability of LiNi0.5Co0.2Mn0.3O2 at 328K and 4.4V. ► TiO2 coating can prevent the increase of charge-transfer resistance (Rct). ► LiF/MFx species deposited on the electrode lead to capacity deterioration. ► The deposition of LiF/MFx species can be suppressed by TiO2 c...

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Veröffentlicht in:	Journal of alloys and compounds 2012-12, Vol.543, p.181-188
Hauptverfasser:	Liu, Wen, Wang, Miao, Gao, Xing long, Zhang, Weidong, Chen, Jitao, Zhou, Henghui, Zhang, Xinxiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Coating Cycling performance Discharge Electrochemical impedance spectroscopy Electrochemistry Electrodes: preparations and properties Emission analysis Exact sciences and technology General and physical chemistry High temperature Inductively coupled plasma LiNi0.5Co0.2Mn0.3O2 Metal dissolution Spectroscopy TiO2 coating Titanium dioxide X-ray photoelectron spectroscopy
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