Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (3): 307-312.DOI: 10.15541/jim20170169

Special Issue: 离子电池材料

• Orginal Article • Previous Articles     Next Articles

Semi-hollow/Solid ZnMn2O4 Microspheres: Synthesis and Performance in Li Ion Battery

LI Bo, HAO Wen, WEN Xiao-Gang   

  1. School of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
  • Received:2017-04-12 Revised:2017-05-31 Published:2018-03-20 Online:2018-03-12
  • About author:LI Bo. E-mail: liboblieve@163.com
  • Supported by:
    National Natural Science Foundation of China (50872084, 51072124)

Abstract:

Porous semi-hollow/solid ZnMn2O4 microspheres were controllably synthesized via template and solvothermal methods respectively. The as-synthesized samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). It is found that the solvent ratio exerts a crucial effect on the morphology and microstructure of solid ZnMn2O4 microspheres. The porous solid ZnMn2O4 microspheres could be obtained when the volume ratio of ethylene glycol to deionized water was 3 : 1. The semi-hollow ZnMn2O4 microspheres with a double-layer ZnMn2O4 shell and a small C core could be synthesized via a template-solvothermal method and post-calcination process. The electrochemical properties of as-prepared semi-hollow/solid ZnMn2O4 microspheres as anode materials of lithium-ion batteries were investigated. Semi-hollow ZnMn2O4 microspheres exhibit higher initial discharge capacity, better rate capacity and cycling performance than solid ZnMn2O4 microspheres.

 

Key words: ZnMn2O4, hollow microsphere, porous materials, lithium-ion battery

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