Paper Title:
Preparation of Spherical FePO4 Cathode Material for Lithium Ion Batteries
  Abstract

The spherical FePO4 was prepared by a novel co-precipitation process followed by spray drying method, using Fe (NO3)3•9H2O, NH4H2PO4, NH3•H2O and polyvinyl alcohol. The pH value plays a pivotal role in determining the morphology of spherical particles; the sample, obtained at pH=3, was found to have the ideal spherical particles and electrochemical property. The X-ray diffraction analysis showed the phase transition of FePO4 with calcining temperature, amorphous FePO4 can exhibit better performance than the crystalline phase. Electrochemical behavior of spherical FePO4 was studied by the charge-discharge tests and electrochemical impedance spectroscopy. The results show that this process is a promising method to prepare spherical FePO4cathode materials for lithium ion batteries.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 1: Development and Utilization of Solar Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
576-581
DOI
10.4028/www.scientific.net/AMR.347-353.576
Citation
X. Yang, J. X. Zhang, S. M. Zhang, L. C. Yan, Y. Mei, G. Geng, "Preparation of Spherical FePO4 Cathode Material for Lithium Ion Batteries", Advanced Materials Research, Vols. 347-353, pp. 576-581, 2012
Online since
October 2011
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Price
$32.00
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