Submicron-sized cube-like alpha-Fe2O3 agglomerates as an anode material for Li-ion batteries

Authors

Peng Zhang, University of Wollongong
Zaiping Guo, University of Wollongong
Hua-Kun Liu, University of WollongongFollow

RIS ID

34392

Publication Details

Zhang, P., Guo, Z. & Liu, H. K. (2010). Submicron-sized cube-like alpha-Fe2O3 agglomerates as an anode material for Li-ion batteries. Electrochimica Acta, 55 (28), 8521-8526.

Abstract

Submicron-sized cube-like α-Fe₂O₃ agglomerates were successfully fabricated via hydrothermal technique. The material showed a high reversible capacity of 900.2 mAh g⁻¹ and excellent capacity retention of 88.9% after 35 cycles at a current density of 40 mA g⁻¹. The initial columbic efficiencies of the as-prepared powder were 82.65 and 80.57% at current densities of 40 and 80 mA g⁻¹, respectively, which is higher than that of other α-Fe₂O₃ electrodes reported so far. We believe that the small crystal size and the high structure stability are responsible for the drastic improvement in initial coulombic efficiency and reversibility.