NDLI: Effects of Ni-ion doping on electrochemical characteristics of spinel LiMn2O4 powders prepared by a spray-drying method

Content Provider	Springer Nature Link
Author	Wu, H. M. Tu, J. P. Chen, X. T. Li, Y. Zhao, X. B. Cao, G. S.
Copyright Year	2005
Abstract	Spinel LiMn2−x Ni x O4 compounds doped with a range of Ni (x=0–0.06) were synthesized by a spray-drying method. The structure and morphology characteristics of the powders were studied in detail by means of X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy. The XRD data reveal that all the samples have well-defined spinel structure, but, with the increase in Ni content, the doped lithium manganese spinels have smaller lattice constant. The undoped and doped spinel LiMn2O4 particles are fine, narrowly distributed, and well crystallized. The electrochemical characteristics of the samples are measured in the coin-type cells in a potential range of 3.2–4.35 V vs Li/Li+. All cyclic voltammogram curves exhibit two pairs of redox reaction peaks, but, among them, there are some differences about the peak split. With the increase in the Ni content, the specific capacities of the samples decrease slightly, but their cyclic ability increases.
Starting Page	173
Ending Page	176
Page Count	4
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	11
Issue Number	2
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-12-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	LiMn2O4 powders Electrochemical property Ni-doped, Spray-drying method Lithium ion batteries Electronic and Computer Engineering Condensed Matter Characterization and Evaluation Materials Industrial Chemistry/Chemical Engineering Analytical Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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