Paper Title:
Preparation and Characterization of Li [Mn2-xFex]O4 (x = 0.0-0.6) Spinel Nanoparticles as Cathode Materials for Lithium Ion Battery
  Abstract

Nanosized powders in the system LiMn2−xFexO4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6) have been synthesized by sol-gel technique using citric acid as chelating agent. The effect of Fe substitution on the structure and surface morphology of spinel LiMn2O4 has been examined by X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM) and Electrochemical characteristics. The materials for all the compositions except x = 0.6 exhibit a phase pure cubic spinel structure as evident from the XRD analyses. Doping with Fe increases the crystallinity in the materials and decreases the average particle size. The surface morphology of the synthesized particles is spherical and polygonal type. Average particle size lies in the range of 60 to 400 nm. Improved capacity retention in rechargeable 4 V Li/LiMn2-xFexO4 cells has been observed when a small amount of manganese in the spinel cathode is replaced with iron. The first discharge capacities of LiMn2−xFexO4 (x = 0.0, 0.1, 0.2, 0.3) in a voltage range of 3 V to 4.3 V decreases as the x increases, however, the cyclic performance improves.

  Info
Periodical
Edited by
S. Ray, S.K. Nath, A. Kumar, R.C. Agarwala, V. Agarwala, G.P. Chaudhari, B.S.S. Daniel
Pages
233-238
DOI
10.4028/www.scientific.net/AMR.67.233
Citation
P. Singh, A. Sil, M. Nath, S. Ray, "Preparation and Characterization of Li [Mn2-xFex]O4 (x = 0.0-0.6) Spinel Nanoparticles as Cathode Materials for Lithium Ion Battery", Advanced Materials Research, Vol. 67, pp. 233-238, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Izumi Mukoyama, Takayuki Kodera, Nobuo Ogata, Takashi Ogihara
Abstract:LiM(M=Fe,Al,Mg)XMn2-XO4 fine powders were synthesized by the ultrasonic spray pyrolysis using metal nitrate solution. LiMn2O4 powders...
167
Authors: Yong Li Cui, Wen Jing Bao, Zheng Yuan, Quan Chao Zhuang, Zhi Sun
Chapter 1: Development and Utilization of Solar Energy
Abstract:LiNixMn2-xO4 (x=0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5) compounds with spinel crystal structure are synthesized by sol-gel method. The dependence...
290
Authors: Dyah Purwaningsih, Roto Roto, Narsito, Hari Sutrisno
Chapter 2: Materials Synthesis and Properties Research
Abstract:LiCoxMn2-xO4 can serve as one of the main candidates for cathode materials for lithium batteries since they...
100