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Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 5: 1097 - 1102

DOI: https://doi.org/10.3724/SP.J.1077.2006.01097

Research Paper

Preparation and Characterization of Li3V2(PO4)3 Cathode Material for Lithium Ion Batteries

  • YING Jie-Rong ,
  • GAO Jian ,
  • JIANG Chang-Yin ,
  • LI Wei ,
  • TANG Chang-Ping
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  • Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 102201, China

Received date: 2005-10-19

  Revised date: 2005-12-12

  Online published: 2006-09-20

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Abstract

Monoclinic lithium vanadium phosphate Li3V2(PO4)3 is a very promising polyanion-type cathode material for lithium ion batteries. In this work, LiOH·H2O, V2O5, H3PO4 and sucros(C12H22O11) were homogeneously mixed with certain molar ratios by ball-milling, and then sintered at 800℃ for 16h in N2. The Li3V2(PO4)3 powders were finally synthesized via carbothermal reduction process. The structure and morphology of Li3V2(PO4)3 powders were characterized by XRD and SEM. At charge-discharge cut-off voltages of 3.0-4.3V and 3.0-4.8V, the material shows rather high specific capacity, excellent cycling performance and rate capability. At charge-discharge cut-off voltages of 1.5-4.8V, the material shows very high specific capacity but poor cycling performance.

Key words： lithium ion batteries; cathode material; Li3V2(PO4)3

Cite this article

YING Jie-Rong , GAO Jian , JIANG Chang-Yin , LI Wei , TANG Chang-Ping . Preparation and Characterization of Li3V2(PO4)3 Cathode Material for Lithium Ion Batteries[J]. Journal of Inorganic Materials, 2006 , 21(5) : 1097 -1102 . DOI: 10.3724/SP.J.1077.2006.01097

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