In:
Materials Science Forum, Trans Tech Publications, Ltd., Vol. 953 ( 2019-5), p. 121-126
Kurzfassung:
High energy density and rechargeable lithium ion batteries are attracting widely interest in renewable energy fields. The preparation of the high performance materials for electrodes has been regarded as the most challenging and innovative aspect. By utilizing a facile combustion synthesis method, pure nanostructure LiNi 0.5 Mn 1.5 O 4 cathode material for lithium ion batteries were successfully fabricated. The crystal phase of the samples were characterized by X-Ray Diffraction, and micro-morphology as well as electrochemistry properties were also evaluated using FE-SEM, electrochemical charge-discharge test. The result shows the fabricated LiNi 0.5 Mn 1.5 O 4 cathode materials had outstanding crystallinity and near-spherical morphologies. That obtained LiNi 0.5 Mn 1.5 O 4 samples delivered an initial discharge capacity of 137.2 mAhg -1 at the 0.1 C together with excellent cycling stability and rate capability as positive electrodes in a lithium cell. The superior electrochemical performance of the as-prepared samples are owing to nanostructure particles possessing the shorter diffusion path for Li + transport, and the nanostructure lead to large contact area to effectively improve the charge/discharge properties and the rate property. It is demonstrated that the as-prepared nanostructure LiNi 0.5 Mn 1.5 O 4 samples have potential as cathode materials of lithium-ion battery for future new energy vehicles.
Materialart:
Online-Ressource
ISSN:
1662-9752
DOI:
10.4028/www.scientific.net/MSF.953
DOI:
10.4028/www.scientific.net/MSF.953.121
Sprache:
Unbekannt
Verlag:
Trans Tech Publications, Ltd.
Publikationsdatum:
2019
ZDB Id:
2047372-2