A novel shuttle-like Fe3O4-Co3O4 self-assembling architecture with highly reversible lithium storage

Authors

Kaina Shang, South China Normal University
Wentao Li, South China Normal University
Yongmei Liu, Guangzhou Vocational College of Science and Technology
Wenguang Zhang, South China Normal University
Hui Yang, South China Normal University
Jiqing Xie, South China Normal University
Zuyan Liu, South China Normal University
Shulei Chou, University of WollongongFollow
Lingzhi Zhao, South China Normal University
R Zeng, University of Wollongong, Western Sydney UniversityFollow

RIS ID

102755

Publication Details

Shang, K., Li, W., Liu, Y., Zhang, W., Yang, H., Xie, J., Liu, Z., Chou, S., Zhao, L. & Zeng, R. (2015). A novel shuttle-like Fe₃O₄-Co₃O₄ self-assembling architecture with highly reversible lithium storage. RSC Advances: an international journal to further the chemical sciences, 5 (86), 70527-70535.

Abstract

We report the synthesis of a novel shuttle-like Fe₃O₄-Co₃O₄ self-assembling architecture through a facile hydrothermal method. The composite manifests quite excellent electrochemical performance as anodes of Li-ion batteries. It delivers a high reversible capacity of approx. 1013 mA h g^-1 at 100 mA g^-1 after 100 cycles (approx. 1246 mA h g^-1 at 0.5 A g^-1, 864 mA h g^-1 at 1 A g^-1 and 625 mA h g^-1 at 2 A g^-1 after 50 cycles). The rate performance is also outstanding with a reversible capacity of 660 mA h g^-1 even at 5 A g^-1 and a capacity retention of 94% after 78 cycles. The synergetic effect of Co₃O₄ and Fe₃O₄, as well as the unique self-assembling architecture, may be responsible for the large enhanced electrochemical performance.