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Citation: ZHANG Hua, ZHOU Yong-Ning, WU Xiao-Jing, FU Zheng-Wen. Electrochemical Properties of CuF₂ Films Fabricated by Pulsed Laser Deposition[J]. Acta Physico-Chimica Sinica, ;2008, 24(07): 1287-1291. doi: 10.3866/PKU.WHXB20080728 shu

Electrochemical Properties of CuF₂ Films Fabricated by Pulsed Laser Deposition

1.
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

Received Date: 18 January 2008
Available Online: 9 May 2008

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.
- CuF2; Thin film; Pulsed laser deposition; Lithiumion battery
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Electrochemical Properties of CuF2 Films Fabricated by Pulsed Laser Deposition

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通讯作者: 陈斌, bchen63@163.com

Electrochemical Properties of CuF₂ Films Fabricated by Pulsed Laser Deposition