Synthesis and electrochemical performance of ZnCo2O4 for lithium-ion battery application

Authors

Wei Wang, Peking University
Yun Yang, Swinburne University of TechnologyFollow
Shuijin S. Yang, Hubei University
Zaiping Guo, University of WollongongFollow
Chuanqi Feng, Hubei University, University of Wollongong
Xingchun Tang, Hubei University

RIS ID

97785

Publication Details

Wang, W., Yang, Y., Yang, S., Guo, Z., Feng, C. & Tang, X. (2015). Synthesis and electrochemical performance of ZnCo₂O₄ for lithium-ion battery application. Electrochimica Acta, 155 297-304.

Abstract

ZnCo₂O₄ was synthesized through the rheological phase reaction method using zinc acetate dehydrate, cobalt (II) acetate tetrahydrate, and citric acid as raw materials. The precursors were heat-treated in a muf fle furnace at 400°C or 500°C, respectively. The samples were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The electrochemical properties of the samples were investigated. The results show that ZnCo₂O₄ nanoparticles were synthesized successfully. The particles took on irregular quasi-spherical shapes, and the sizes of the particles were less than 100 nm. The electrochemical properties showed that the ZnCo₂O₄ synthesized at 400°C featured better reversible capacity than that of ZnCo₂O₄ synthesized at 500°C, and its specific capacity was 801 mAh g^-1 after 100 cycles at a constant current of 100 mAh g^-1 in the voltage range of 0.01-3 V. Hence, the ZnCo₂O₄ synthesized by this method could be a promising anode material for lithium ion battery application.