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Acta Phys. -Chim. Sin.  2008, Vol. 24 Issue (07): 1287-1291    DOI: 10.3866/PKU.WHXB20080728
Note     
Electrochemical Properties of CuF2 Films Fabricated by Pulsed Laser Deposition
ZHANG Hua; ZHOU Yong-Ning; WU Xiao-Jing; FU Zheng-Wen
Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Institute of Laser Chemistry, Department of Chemistry, Fudan University; Department of Material Science, Fudan University, Shanghai 200433, P. R. China
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Abstract  Nanostructured CuF2 thin films were prepared by pulsed laser deposition on stainless steel substrates. The charge and discharge curves showed a high reversible capacity of 540 mAh·g-1, corresponding to 2.0 Li per CuF2. The cyclic voltammograms showed that a new couple of reduction and oxidation peaks at 2.2 and 2.8 V (vs Li/Li+) appeared for the first time. The components and structure of the films after charging and discharging were characterized by ex-situ high-resolution transmission electron microscopy and selected area electron diffraction measurements. Electrochemical reaction mechanism of nanostructured CuF2 thin films with lithium was revealed, in which the reversible decomposition and formation of LiF driven by transition metal Cu were involved.

Key wordsCuF2      Thin film      Pulsed laser deposition      Lithiumion battery     
Received: 18 January 2008      Published: 09 May 2008
MSC2000:  O646.2  
Corresponding Authors: FU Zheng-Wen     E-mail: zhengwen@sh163.net
Cite this article:

ZHANG Hua; ZHOU Yong-Ning; WU Xiao-Jing; FU Zheng-Wen. Electrochemical Properties of CuF2 Films Fabricated by Pulsed Laser Deposition. Acta Phys. -Chim. Sin., 2008, 24(07): 1287-1291.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20080728     OR     http://www.whxb.pku.edu.cn/Y2008/V24/I07/1287

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