A novel fiber bundle structure ZnCo2O4 as a high capacity anode material for lithium-ion battery

作者：Song, Xiong; Ru, Qiang^*; Mo, Yudi; Hu, Shejun; An, Bonan

来源：Journal of Alloys and Compounds, 2014, 606: 219-225.

DOI：10.1016/j.jallcom.2014.03.190

• ZnCo2O4 fiber bundle
• Lithium-ion battery
• Co-precipitation
• Anode

A novel fiber bundle nanostructured ZnCo2O4 (ZCO) is prepared by a typical and facile co-precipitation method using oxalic acid as complex agent. XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diameter of 10-30 nm are composed of uniform ZCO nanocrystals with a size of 30-60 nm. The novel structure with enough free space is beneficial to improving the electrochemical performance. The as-prepared ZCO fiber bundle used as an anode material for lithium-ion batteries exhibits a high specific capacity of 1026.3 mA h g (1) at a current rate of 100 mA g (1) after 100 cycles, as well as a high power capability at elevated current rates, i.e., 1015.1 and 606.2 mA h g (1) at current rates of 500 and 2000 mA g (1), respectively. It has a great prospect for the application of anode materials for lithium-ion batteries.

• 出版日期2014-9-5
• 单位华南师范大学