铁酸铜负极材料的微波合成和电化学性能

Microwave Assisted Synthesis and Electrochemical Performance of Copper Ferrite as Anode Material for Lithium-ion Battery

以十六烷基三甲基溴化铵（CTAB）为模板，硝酸铁和硝酸铜为起始物，采用一步微波法，再经过简单的热处理制备了CuFe2O4负极材料，采用X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEN）、傅里叶红外光谱（FTr-IR）等测试技术表征材料的结构和形貌。电化学测试表明，在100mA／g电流密度，0．01—3．0V电压条件下，材料的首周嵌脱锂比容量分别为1202．2和873．2mA·h／g，循环50周后，嵌锂比容量仍保持在近650mA·h／g，显示出优异的电化学性能。

The copper ferrite was prepared by an one-pot microwave assisted sintering process with cetrimonium bromide（CTAB） as the template and copper and microstructure of the products were characterized microscopy （ SEM ） CuFe204 exhibits and ionic nitrates as the reactants. The morphology by X-ray diffraction （XRD）, scanning electron , transmission electron microscopy （TEM）, and FT-IR spectroscopy. The as-prepared excellent electrochemical performance with the lithiation/delithiation capacity of 1202.2 mA-h/g and 873.2 mA.h/g（at the current 100 mA/g）, respectively, and the capacities are maintained over 650 mA. h/g even after 50 charge/discharge cycles.