Magnetite/carbon core-shell nanorods as anode materials for lithium-ion batteries

Authors

Hao Liu, University of WollongongFollow
Guoxiu Wang, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
David Wexler, University of WollongongFollow

RIS ID

26057

Publication Details

Liu, H., Wang, G., Wang, J. & Wexler, D. (2008). Magnetite/carbon core-shell nanorods as anode materials for lithium-ion batteries. Electrochemistry Communications, 10 (12), 1879-1882.

Abstract

Carbon coated magnetite (Fe3O4) core-shell nanorods were synthesized by a hydrothermal method using Fe2O3 nanorods as the precursor. Transmission electron spectroscopy (TEM) and high resolution TEM (HRTEM) analysis indicated that a carbon layer was coated on the surfaces of the individual Fe3O4 nanorods. The electrochemical properties of Fe3O4/carbon nanorods as anodes in lithium-ion cells were evaluated by cyclic voltammetry, ac impedance spectroscopy, and galvanostatic charge/discharge techniques. The as-prepared Fe3O4/C core-shell nanorods show an initial lithium storage capacity of 1120 mAh/g and a reversible capacity of 394 mAh/g after 100 cycles, demonstrating better performance than that of the commercial graphite anode material.