Paper Title:
Electrochemical Properties of LiFePO4/C Composite Improved by High Energy Milling
  Abstract

The electrochemical properties of LiFePO4 as a cathode of lithium ion batteries considerably depend on a particle size of LiFePO4 and a condition of carbon coating. In this study, LiFePO4 powders were prepared using ultrasonic spray pyrolysis method, and then LiFePO4/C composites were made by infiltrating sucrose solution into LiFePO4 powders, drying, high-energy milling and annealing. The effects of high-energy milling were analyzed by comparing with electrochemical properties of powders synthesized without high-energy milling. It was found that the milling process drastically reduced the particle size of synthesized powders and electrical conductivity, and improved discharge capacity, cycle stability and rate performance.

  Info
Periodical
Materials Science Forum (Volumes 620-622)
Edited by
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
Pages
41-44
DOI
10.4028/www.scientific.net/MSF.620-622.41
Citation
C. S. Kim, S. I. Hwang, S. W. Kim, "Electrochemical Properties of LiFePO4/C Composite Improved by High Energy Milling", Materials Science Forum, Vols. 620-622, pp. 41-44, 2009
Online since
April 2009
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Price
$32.00
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