Synthesis of 3D “micro-nano-structure” LiFePO4/C with high-rate capability and high tap density via a water bath process

  • Xiaoming LouEmail author
  • Jiali Huang
  • Hanxiang Hu
  • Tanping Li
  • Bonian Hu


The 3D “micro-nano-structure” LiFePO4/C have been synthesized successfully from FePO4·2H2O precursor via a simple, inexpensive and continuously water bath process at 100 °C for 24 h by using Fe3+ as the iron source, followed by a rheological phase method. Both the properties of the FePO4·2H2O and the LiFePO4/C were investigated by XRD and SEM. The results indicated that the 3D “micro-nano-structure” materials composited of nanoplates which are about 100 nm long and 50 nm thick, and had a hole in the center. Moreover, the FePO4·2H2O had a high yield above 85 %. Furthermore, the 3D “micro-nano-structure” LiFePO4/C as cathode materials for Li-ion batteries were also evaluated. The materials showed excellent high-rate capability, with discharge capacities reaching 103 and 80 mAh g−1 at high rates of 10 and 20 C, even could reach 40 mAh g−1 when the current increased to 30 C. Moreover, the LiFePO4/C had a high tap density about 1.5 g cm−3. As a result, the 3D “micro-nano-structure” LiFePO4/C can be the cathode material for large-scale applications and industrialization.


Cathode Material LiFePO4 FePO4 Li3PO4 Excellent Electrochemical Performance 
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This study was supported by National Science Foundation of China (No. 21476066). The Natural Science Foundation of Hunan Province Project (No. 13JJ6084), The construct program of the key discipline in Hunan Province of the 12th Five-Year Plan (No. 080502), and The Excellent Engineering Project of the Department of Education of China during the 12th Five-Year Plan (No. 080203).


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Xiaoming Lou
    • 1
    Email author
  • Jiali Huang
    • 1
  • Hanxiang Hu
    • 1
  • Tanping Li
    • 1
  • Bonian Hu
    • 1
  1. 1.The Institute of Construction Materials, Department of Materials and Chemical EngineeringHunan Institute of TechnologyHengyangChina

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