Paper Title:
Enhanced Performance of ZnO-Coated LiNi0.5Mn1.5 O4 Cathode Materials for Li-Ion Battery
  Abstract

ZnO-coated LiNi0.5Mn1.5O4 cathode materials for Li-ion batteries have been synthesized. Samples were characterized by scanning electron microscopy (SEM), X-ray diffractometry (XRD) and charge-discharge tests. The results of XRD and scanning electron microscopy (SEM) showed the ZnO-coating was nano-sized, and the LiNi0.5Mn1.5O4 powder exhibits a typical cubic spinel structure with a space group of Fd3m. Electrochemical tests demonstrate that the ZnO-coated sample obtained possesses high capacity and excellent cycling stability compared with the as-prepared LiNi0.5Mn1.5O4. When being discharged at a rate of 1C after 50 cycles, the ZnO-coated LiNi0.5Mn1.5O4 powders can still deliver a capacity of 115.5 mAh•g-1, with nearly no capacity fading, which shows to be a potential cathode material for high-energy density power batteries.

  Info
Periodical
Advanced Materials Research (Volumes 228-229)
Edited by
Quanjie Gao
Pages
514-518
DOI
10.4028/www.scientific.net/AMR.228-229.514
Citation
W. H. Zhang, M. Yue, T. Wang, "Enhanced Performance of ZnO-Coated LiNi0.5Mn1.5 O4 Cathode Materials for Li-Ion Battery", Advanced Materials Research, Vols. 228-229, pp. 514-518, 2011
Online since
April 2011
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Price
$32.00
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