Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (09): 1111-1115.doi: 10.1016/S1872-1508(06)60051-X

• ARTICLE • Previous Articles     Next Articles

The Electrochemical Properties of LiF-Ni Nanocomposite Thin Film

ZHOU Yong-Ning;WU Chang-Liang;ZHANG Hua;WU Xiao-Jing;FU Zheng-Wen   

  1. (Department of Chemistry and Laser Chemistry Institute, Department of Materials Science, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, P. R. China)
  • Received:2006-03-03 Revised:2006-04-26 Published:2006-09-04
  • Contact: FU Zheng-Wen

Abstract: Nanocomposite of LiF-Ni with a highly heterogeneous mixture was fabricated using pulsed laser deposition (PLD) method, and it exhibited remarkable electrochemical activity. The electrochemical reaction of LiF-Ni nanocomposite thin-film electrode with Li was firstly investigated by the discharge/charge and cyclic voltammetry. The initial charge capacity of the LiF-Ni/Li cell was found to be 107 mAh•g−1. The process of releasing Li from the as-deposited LiF-Ni nanocomposite thin films was confirmed by ex-situ high-resolution transmission electron microscopy and by the selected area electron diffraction measurements. These results provided a direct experimental evidence to support the electrochemical decomposition of LiF driven by the transition metal Ni in the potential range from 1.0 V to 4.0 V. LiF-Ni nanocomposite electrodes could be a novel candidate that could be used as an appropriate for Li storage material.

Key words: LiF-Ni, Nanocomposite thin film, Pulsed laser deposition, Electrochemical reaction