Title

Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles

RIS ID

100017

Publication Details

Zheng, Z., Pang, W. Kong., Tang, X., Jia, D., Huang, Y. & Guo, Z. (2015). Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles. Journal of Alloys and Compounds, 640 95-100.

Abstract

Hollow LiFePO4 nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO4 cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.jallcom.2015.04.007