Skip to main content
Log in

Synthesis of sub-micrometer lithium iron phosphate particles using supercritical hydrothermal method for lithium ion batteries

  • Published:
Journal of Shanghai Jiaotong University (Science) Aims and scope Submit manuscript

Abstract

In this study, sub-micrometer LiFePO4 particles with high purity and crystallinity were synthesized using supercritical hydrothermal method as the cathode material for lithium ion batteries. Experimental results show that templates and calcination time have significant impacts on the purity, particle size and morphology of LiFePO4 particles. The as-prepared LiFePO4 particles using polyvinyl pyrrolidone (PVP) template with additional one hour calcination at 700°C exhibit characteristics of good crystallinity, uniform size distribution, high capacity and cycling performance. The specific discharge capacities of 141.2 and 114.0mA·h/g were obtained at the charge/discharge rates of 0.1 and 1.0 C, respectively. It retained 96.0% of an initial capacity after 100 cycles at 1.0 C rate. The good electrochemical performance of the as-synthesized material is attributed to the synergistic factors of its reasonable particle size and surface areas and high crystallinity.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Padhi A K, Nanjundaswamy K S, Goodenough J B. Phospho-olivines as positive-electrode materials for rechargeable lithium batteries [J]. Journal of The Electrochemical Society, 1997, 144(4): 1188–1194.

    Article  Google Scholar 

  2. Aimable A, Aymes D, Bernard F, et al. Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water [J]. Solid State Ionics, 2009, 180: 861–866.

    Article  Google Scholar 

  3. Chung S Y, Bloking J T, Chiang Y M. Electronically conductive phospho-olivines as lithium storage electrodes [J]. Nature Materials, 2002, 1(2): 123–128.

    Article  Google Scholar 

  4. Prosini P P, Lisi M, Zane D, et al. Determination of the chemical diffusion coefficient of lithium in LiFePO4 [J]. Solid State Ionics, 2002, 148(1-2): 45–51.

    Article  Google Scholar 

  5. Yamada A, Chung S C, Hinokuma K. Optimized LiFePO4 for lithium battery cathodes [J]. Journal of The Electrochemical Society, 2001, 148: A224–A229.

    Article  Google Scholar 

  6. Takahashi M, Tobishima S, Takei K, et al. Characterization of LiFePO4 as the cathode material for rechargeable lithium batteries [J]. Journal of Power Sources, 2001, 97–98: 508–511.

    Article  Google Scholar 

  7. Prosini P P, Carewska M, Scaccia S, et al. A new synthetic route for preparing LiFePO4 with enhanced electrochemical performance [J]. Journal of The Electrochemical Society, 2002, 149: A886–A890.

    Article  Google Scholar 

  8. Arnold G, Garche J, Hemmer R, et al. Fineparticle lithium iron phosphate LiFePO4 synthesized by a new low-cost aqueous precipitation technique [J]. Journal of Power Sources, 2003, 119–121: 247–251.

    Article  Google Scholar 

  9. Oh S W, Myung S T, Bang H J, et al. Nanoporous structured LiFePO4 with spherical microscale particles having high volumetric capacity for lithium batteries [J]. Electrochemical and Solid-State Letters, 2009, 12(9): A181–A185.

    Article  Google Scholar 

  10. Wang G X, Bewlay S, Yao J, et al. Characterization of LiM xFe1−x PO4 (M = Mg, Zr, Ti) cathode materials prepared by the sol-gel method [J]. Electrochemical and Solid-State Letters, 2004, 7(12): A503–A506.

    Article  Google Scholar 

  11. Adschiri T, Hakuta Y, Sue K, et al. Hydrothermal synthesis of metal oxide nanoparticles at supercritical conditions [J]. Journal of Nanoparticle Research, 2001, 3: 227–235.

    Article  Google Scholar 

  12. Lee J, Teja A S. Characteristics of lithium iron phosphate (LiFePO4) particles synthesized in subcritical and supercritical water [J]. Journal of Supercritical Fluids, 2005, 35: 83–90.

    Article  Google Scholar 

  13. Hong S A, Kim S J, Kim J, et al. Small capacity decay of lithium iron phosphate (LiFePO4) synthesized continuously in supercritical water: Comparison with solid-state method [J]. Journal of Supercritical Fluids, 2011, 55: 1027–1037.

    Article  Google Scholar 

  14. Doherty C M, Caruso R A, Smarsly B M, et al. Colloidal crystal templating to produce hierarchically porous LiFePO4 electrode materials for high power lithium ion batteries [J]. Chemistry of Materials, 2009, 21: 2895–2903.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Xue-wu Liu  (刘学武).

Additional information

Foundation item: the Fundamental Research Funds for the Central Universities of China (No. DUT11NY08)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Liu, Xw., Wei, H., Deng, Yf. et al. Synthesis of sub-micrometer lithium iron phosphate particles using supercritical hydrothermal method for lithium ion batteries. J. Shanghai Jiaotong Univ. (Sci.) 17, 517–522 (2012). https://doi.org/10.1007/s12204-012-1317-6

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12204-012-1317-6

Key words

CLC number

Navigation