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Controlled Crystallization Synthesis of Porous FePO4·3H2O Micro-Spheres for Fabricating High Performance LiFePO4/C Cathode Materials

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Abstract:

Amorphous porous FePO4·3H2O micro-spheres were synthesized via a controlled crystallization method. These micro-spheres have a particle size distribution from 10 to 28 μm. There are larger numbers of pores on the surface of FePO4·3H2O microspheres, which are important to synthesize high performance LiFePO4 cathode materials for the application of lithium ion battery. The electrochemical properties of the LiFePO4/C electrode, preparing by using the above porous spherical FePO4·3H2O particles, were measured. The electrochemical results show that the obtained LiFePO4/C has a high initial discharge specific capacity of 141.4 mAhg-1 and good cycling performance at 0.5 C. The microstructural and electrochemical analyses indicate that this porous spherical FePO4·3H2O is a fascinating precursor for preparing LiFePO4/C cathode materials.

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Info:

Periodical:

Advanced Materials Research (Volumes 399-401)

Pages:

1510-1514

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.399-401.1510

Citation:

Cite this paper

Online since:

November 2011

Authors:

Wen Kui Zhang, Hui Juan Zeng, Yang Xia, Ling Chao Qian, Bin Zhao, Hui Huang, Yong Ping Gan, Xin Yong Tao

Keywords:

Controlled Crystallization, FePO4·3H2O, Lithium-Ion Battery, Micro-Sphere, Porous

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