Ionics DOI 10.1007/s11581-014-1221-1
ORIGINAL PAPER
Surfactant-mediated synthesis of ZnCo2O4 powders as a high-performance anode material for Li-ion batteries Yan Wang & Mingshan Wang & Gang Chen & Chengjun Dong & Yude Wang & Li-Zhen Fan
Received: 15 May 2014 / Revised: 18 July 2014 / Accepted: 29 July 2014 # Springer-Verlag Berlin Heidelberg 2014
Abstract The synthesis as well as the electrochemical properties study of highly crystalline ZnCo2O4 powders is presented. ZnCo2O4 powders with a particle diameter of 15–35 nm have been successfully prepared with the surfactant-mediated method. The thorough structural characterization including Xray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were employed to examine the morphology and the microstructure of the final product. The as-synthesized powders were used as anode materials for lithium-ion battery, whose charge–discharge properties, cyclic voltammetry, and cycle performance were examined and revealed very good properties. Galvanostatic cycling of ZnCo2O4 powders in the voltage range 0.005– 3.0 V versus Li at 60 mA g−1 maintained charge and discharge capacities of 1,308 and 1,336 mAh g−1 after 40 cycles when cycled at 25 °C, respectively. Keywords Nanocrystalline . ZnCo2O4 . Surfactant-mediated method . Anode material . Li-ion batteries
Introduction For high energy density, the electrode materials in the lithiumion batteries must possess high specific storage capacity and coulombic efficiency [1]. As an anode material for lithium-ion Y. Wang : G. Chen : C. Dong : Y. Wang (*) Department of Materials Science and Engineering, Yunnan University, 650091 Kunming, People’s Republic of China e-mail:
[email protected] M. Wang : L.
