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Synthesis and electrochemical properties of LiY0.1V3O8

Identifieur interne : 009325 ( Main/Exploration ); précédent : 009324; suivant : 009326

Synthesis and electrochemical properties of LiY0.1V3O8

Auteurs : C. Q. Feng [République populaire de Chine, Australie] ; L. F. Huang [République populaire de Chine] ; Z. P. Guo [Australie] ; J. Z. Wang [Australie] ; H. K. Liu [Australie]

Source :

RBID : Pascal:08-0324799

Descripteurs français

English descriptors

Abstract

LiY0.1V3O8 compound was successfully prepared by using a simple, rapid and easily scaled up method, i.e. the rheological phase reaction method. The microstructural characteristics of LiY0.1V3O3 materials were examined by X-ray diffraction and scanning electron microscopy (SEM). Compared with LiV3O8 compound, the LiY0.1V3O8 shows expanded crystal lattices, and the expansion is more significant along the c-axis. The electrochemical properties of the as-synthesized LiY0.1V3O8 compounds were investigated. It was found that the LiY0.1V3O8 electrodes exhibited better reversibility and higher capacities than LiV3O8 electrodes. The reasons for the improved electrochemical performance of the LiY0.1V3O8 electrodes are also discussed.


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Le document en format XML

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<title xml:lang="en" level="a">Synthesis and electrochemical properties of LiY
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<sub>3</sub>
O
<sub>8</sub>
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<front>
<div type="abstract" xml:lang="en">LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>8</sub>
compound was successfully prepared by using a simple, rapid and easily scaled up method, i.e. the rheological phase reaction method. The microstructural characteristics of LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>3</sub>
materials were examined by X-ray diffraction and scanning electron microscopy (SEM). Compared with LiV
<sub>3</sub>
O
<sub>8</sub>
compound, the LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>8</sub>
shows expanded crystal lattices, and the expansion is more significant along the c-axis. The electrochemical properties of the as-synthesized LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>8</sub>
compounds were investigated. It was found that the LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>8</sub>
electrodes exhibited better reversibility and higher capacities than LiV
<sub>3</sub>
O
<sub>8</sub>
electrodes. The reasons for the improved electrochemical performance of the LiY
<sub>0.1</sub>
V
<sub>3</sub>
O
<sub>8</sub>
electrodes are also discussed.</div>
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