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Journal of Inorganic Materials

Journal of Inorganic Materials >

2007 , Vol. 22 >Issue 1: 79 - 83

DOI: https://doi.org/10.3724/SP.J.1077.2007.00079

Research Paper

Synthesis and Electrochemical Properties of LiFePO4 Cathode Material

  • QIU Ya-Li ,
  • WANG Bao-Feng ,
  • YANG Li
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  • School of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 200240, China

Received date: 2006-03-14

  Revised date: 2006-05-12

  Online published: 2007-01-20

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Abstract

The olive-type LiFePO4 was synthesized via sintering the amorphous LiFePO4 obtained by chemical reduction and lithiation of FePO4, using VC as reducer and lithium acetate as lithium source in alcohol solution. The influences of sintering
conditions on the physical and electrochemical properties of resulting LiFePO4 were investigated. XRD and SEM tests show that increasing the sintering temperature and time leads to higher crystallinity, but to a larger particle size. The electrochemical property of LiFePO4 sintered at 600℃ for 2h is the best, its initial discharge capacity at 0.1C rate can reach 159mAh﹒ g-1, its capacity after 50 charge-discharge cycles is nearly no decay.

Key words： lithium ion batteries; LiFePO4; cathode material

Cite this article

QIU Ya-Li , WANG Bao-Feng , YANG Li . Synthesis and Electrochemical Properties of LiFePO4 Cathode Material[J]. Journal of Inorganic Materials, 2007 , 22(1) : 79 -83 . DOI: 10.3724/SP.J.1077.2007.00079

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