Synthesis and Electrochemical Characteristics of LiNi 0 . 5 Mn 1 . 5 O 4 Coatings Prepared by Atmospheric Plasma Spray as Cathode Material for Lithium-Ion Batteries

Content Provider	Semantic Scholar
Author	Liang, Xinghua Zhao, Yuchao Dihan Lan, Lingxiao
Copyright Year	2018
Abstract	The development of electric vehicles and portable electronic devices demands lighter and thinner batteries with appropriate rate capabilities, energy density and safety. In this work, we prepared LiNi0.5Mn1.5O4 (LNMO) coatings as a cathode electrode for lithium-ion batteries using an atmospheric plasma spray (APS) method. The surface morphologies and structures of the coatings, as well as the powder, were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis. The structural results show that the LNMO coatings have an ordered cubic structure (space group P4332) and demonstrate better electrochemical performance at 55°C than that at 25°C. With increasing discharge rates, the specific capacities of LNMO coatings decrease steadily. Electrochemical studies demonstrate that the LNMO coatings also have an acceptable discharge capacity (27 mAh/g) and excellent cycling stability at 55°C. These characteristics are due to the fact that the atmospheric plasma spray method can provide the cathode electrode with a cubic spinel structure and good electrochemical performance for lithium-ion batteries.
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Alternate Webpage(s)	http://www.electrochemsci.org/papers/vol14/140100717.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article