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Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 15 >Issue 2: 145 - 150

DOI: https://doi.org/10.3724/SP.J.1077.2010.00145

Research Paper

Electrochemical Properties of MnF2 Films Fabricated by Pulsed Laser Deposition

  • CUI Yan-Hua ,
  • XUE Ming-Zhe ,
  • HU Ke ,
  • LI Da ,
  • WANG Xiao-Lin ,
  • SU Wei ,
  • LIU Xiao-Jiang ,
  • MENG Fan-Ming ,
  • FU Zheng-Wen
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  • (1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China; 2. Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, China; 3. Department of Chemistry and Laser Chemistry Institute, Department of Materials Science, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China)

Received date: 2009-04-21

  Revised date: 2009-09-08

  Online published: 2010-02-20

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Abstract

Nanostructured MnF2 thin films were fabricated by using pulsed laser deposition on stainless steel substrate at room temperature. The reversible discharge capacities of MnF2 thin film electrode in the ranges from 350mAh/g to 530mAh/g was achieved during the first 50 cycles at the current of 2μA/cm2 from cyclic voltammograms curves of Li/MnF2 cell. Reduction and oxidation peaks at 0.5V and 1.0V were detected which indicated the reversible formation and decomposition of reaction of MnF2. The structure and morphology of the as-deposited films were characterized by X-ray diffraction and scan electronic microscopy. The electrochemical reaction of MnF2 thin film electrode was investigated by the high-resolution transmission electron microscope and selected-area electron diffraction measurements. The results demonstrated that nanosized manganese particles formed in initial discharge process could reversible drive the decomposition and formation of LiF. The low polarization and high capacity of MnF2 thin film show that it is a promising lithiumstorage materials for future rechargeable lithium batteries.

Key words： MnF2; thin film; pulsed laser deposition; lithium-ion batteries

Cite this article

CUI Yan-Hua , XUE Ming-Zhe , HU Ke , LI Da , WANG Xiao-Lin , SU Wei , LIU Xiao-Jiang , MENG Fan-Ming , FU Zheng-Wen . Electrochemical Properties of MnF2 Films Fabricated by Pulsed Laser Deposition
[J]. Journal of Inorganic Materials, 2010 , 15(2) : 145 -150 . DOI: 10.3724/SP.J.1077.2010.00145

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