X-ray diffraction and raman scattering studies of electrochemically cycled CuV2O6

Yingjin Wei; Chang Wan Ryu; Gang Chen; Kwang Bum Kim

doi:10.1149/1.2336984

X-ray diffraction and raman scattering studies of electrochemically cycled CuV₂O₆

Yingjin Wei, Chang Wan Ryu, Gang Chen, Kwang Bum Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

CuV₂O₆ was prepared by a precipitation method followed by heat treatment at 600°C. The material showed an initial discharge capacity of 379 mAh g^-1, which decreased to 160 mAh g ^-1 after 30 cycles. X-ray diffraction showed an irreversible structural change of the material from crystalline to amorphous phase after the first cycle. Contrarily, Raman scattering showed the reversible change of the material's local structure in the first cycle. Further, Raman scattering confirmed the gradual increase of irreversible Li_xCuV ₂O₆ phase in the cathode material, which was responsible for the poor cycling performance of CuV₂O₆.

Original language	English
Pages (from-to)	A487-A489
Journal	Electrochemical and Solid-State Letters
Volume	9
Issue number	11
DOIs	https://doi.org/10.1149/1.2336984
Publication status	Published - 2006

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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10.1149/1.2336984

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abstract = "CuV2O6 was prepared by a precipitation method followed by heat treatment at 600°C. The material showed an initial discharge capacity of 379 mAh g-1, which decreased to 160 mAh g -1 after 30 cycles. X-ray diffraction showed an irreversible structural change of the material from crystalline to amorphous phase after the first cycle. Contrarily, Raman scattering showed the reversible change of the material's local structure in the first cycle. Further, Raman scattering confirmed the gradual increase of irreversible LixCuV 2O6 phase in the cathode material, which was responsible for the poor cycling performance of CuV2O6.",

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AU - Ryu, Chang Wan

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AU - Kim, Kwang Bum

PY - 2006

Y1 - 2006

N2 - CuV2O6 was prepared by a precipitation method followed by heat treatment at 600°C. The material showed an initial discharge capacity of 379 mAh g-1, which decreased to 160 mAh g -1 after 30 cycles. X-ray diffraction showed an irreversible structural change of the material from crystalline to amorphous phase after the first cycle. Contrarily, Raman scattering showed the reversible change of the material's local structure in the first cycle. Further, Raman scattering confirmed the gradual increase of irreversible LixCuV 2O6 phase in the cathode material, which was responsible for the poor cycling performance of CuV2O6.

AB - CuV2O6 was prepared by a precipitation method followed by heat treatment at 600°C. The material showed an initial discharge capacity of 379 mAh g-1, which decreased to 160 mAh g -1 after 30 cycles. X-ray diffraction showed an irreversible structural change of the material from crystalline to amorphous phase after the first cycle. Contrarily, Raman scattering showed the reversible change of the material's local structure in the first cycle. Further, Raman scattering confirmed the gradual increase of irreversible LixCuV 2O6 phase in the cathode material, which was responsible for the poor cycling performance of CuV2O6.

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X-ray diffraction and raman scattering studies of electrochemically cycled CuV₂O₆

Abstract

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