应用化学 ›› 2015, Vol. 32 ›› Issue (10): 1184-1189.DOI: 10.11944/j.issn.1000-0518.2015.10.150099

• 研究论文 • 上一篇    下一篇

铁酸铜负极材料的微波合成和电化学性能

王锋a,胡新良a,张鹏a,赵双琪a,丁瑜ab*()   

  1. a湖北工程学院化学与材料科学学院 湖北 孝感 432000
    b 华中科技大学材料科学与工程学院 武汉 430074
  • 收稿日期:2015-03-17 接受日期:2015-06-02 出版日期:2015-10-10 发布日期:2015-10-10
  • 通讯作者: 丁瑜
  • 基金资助:
    国家自然科学基金(21301045,51402096)湖北省教育厅青年项目(20701005)和湖北省科技厅面上项目(2012BFF00503)

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

WANG Fenga,HU Xinlianga,ZHANG Penga,ZHAO Shuangqia,DING Yuab*()   

  1. a College of Chemistry and Materials Science,Hubei Engineering University,Xiaogan,Hubei 432000,China
    b School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China
  • Received:2015-03-17 Accepted:2015-06-02 Published:2015-10-10 Online:2015-10-10
  • Contact: DING Yu
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21301045, No.51402096), Natural Scientific Foundation of Hubei Province(No.20701005, No.2012BFF00503)

摘要:

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(TEM)、傅里叶红外光谱(FT-IR)等测试技术表征材料的结构和形貌。 电化学测试表明,在100 mA/g电流密度,0.01~3.0 V电压条件下,材料的首周嵌脱锂比容量分别为1202.2和873.2 mA·h/g,循环50周后,嵌锂比容量仍保持在近650 mA·h/g,显示出优异的电化学性能。

关键词: 微波反应, 电化学性能, 铁酸铜, 锂离子电池

Abstract:

The copper ferrite was prepared by an one-pot microwave assisted sintering process with cetrimonium bromide(CTAB) as the template and copper and ionic nitrates as the reactants. The morphology and microstructure of the products were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), and FT-IR spectroscopy. The as-prepared CuFe2O4 exhibits 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.

Key words: microwave synthesis, electrochemical performance, ferrite, lithium ion battery