Electrochemical and structural properties of MoO3-V2O5 nanocomposite thin film electrodes for lithium rechargeable batteries

Youn Su Kim; Hyo Jin Ahn; Hee Sang Shim; Tae Yeon Seong

doi:10.1016/j.ssi.2006.05.031

Electrochemical and structural properties of MoO₃-V₂O₅ nanocomposite thin film electrodes for lithium rechargeable batteries

Youn Su Kim, Hyo Jin Ahn, Hee Sang Shim, Tae Yeon Seong

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

18 Citations (Scopus)

Abstract

We have investigated the electrochemical properties of V₂O₅-based thin film electrodes as a function of the amount of MoO₃ by means of X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), and transmission electron microscopy (TEM). XRD results show that the V₂O₅-based thin film electrodes give an amorphous characteristic. XPS results reveal the formation of V₂O₅ and MoO₃ phases. TEM results show that MoO₃ dots (5-30 nm in size) are embedded in the amorphous V₂O₅ matrix. It is further shown that cells fabricated with the MoO₃-V₂O₅ nanocomposite thin film electrodes give better cycling performance than those made with the single V₂O₅ thin film electrodes. A possible explanation for the MoO₃ nano-dot dependence on the cycling performance of the V₂O₅-based thin film electrodes is described.

Original language	English
Pages (from-to)	1323-1326
Number of pages	4
Journal	Solid State Ionics
Volume	177
Issue number	15-16
DOIs	https://doi.org/10.1016/j.ssi.2006.05.031
Publication status	Published - 2006 Jun 15

Keywords

Co-sputtering
Lithium rechargeable batteries
MoO
Nanocomposite
VO

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1016/j.ssi.2006.05.031

Cite this

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title = "Electrochemical and structural properties of MoO3-V2O5 nanocomposite thin film electrodes for lithium rechargeable batteries",

abstract = "We have investigated the electrochemical properties of V2O5-based thin film electrodes as a function of the amount of MoO3 by means of X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), and transmission electron microscopy (TEM). XRD results show that the V2O5-based thin film electrodes give an amorphous characteristic. XPS results reveal the formation of V2O5 and MoO3 phases. TEM results show that MoO3 dots (5-30 nm in size) are embedded in the amorphous V2O5 matrix. It is further shown that cells fabricated with the MoO3-V2O5 nanocomposite thin film electrodes give better cycling performance than those made with the single V2O5 thin film electrodes. A possible explanation for the MoO3 nano-dot dependence on the cycling performance of the V2O5-based thin film electrodes is described.",

keywords = "Co-sputtering, Lithium rechargeable batteries, MoO, Nanocomposite, VO",

author = "Kim, {Youn Su} and Ahn, {Hyo Jin} and Shim, {Hee Sang} and Seong, {Tae Yeon}",

year = "2006",

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doi = "10.1016/j.ssi.2006.05.031",

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journal = "Solid State Ionics",

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T1 - Electrochemical and structural properties of MoO3-V2O5 nanocomposite thin film electrodes for lithium rechargeable batteries

AU - Kim, Youn Su

AU - Ahn, Hyo Jin

AU - Shim, Hee Sang

AU - Seong, Tae Yeon

PY - 2006/6/15

Y1 - 2006/6/15

N2 - We have investigated the electrochemical properties of V2O5-based thin film electrodes as a function of the amount of MoO3 by means of X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), and transmission electron microscopy (TEM). XRD results show that the V2O5-based thin film electrodes give an amorphous characteristic. XPS results reveal the formation of V2O5 and MoO3 phases. TEM results show that MoO3 dots (5-30 nm in size) are embedded in the amorphous V2O5 matrix. It is further shown that cells fabricated with the MoO3-V2O5 nanocomposite thin film electrodes give better cycling performance than those made with the single V2O5 thin film electrodes. A possible explanation for the MoO3 nano-dot dependence on the cycling performance of the V2O5-based thin film electrodes is described.

AB - We have investigated the electrochemical properties of V2O5-based thin film electrodes as a function of the amount of MoO3 by means of X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), and transmission electron microscopy (TEM). XRD results show that the V2O5-based thin film electrodes give an amorphous characteristic. XPS results reveal the formation of V2O5 and MoO3 phases. TEM results show that MoO3 dots (5-30 nm in size) are embedded in the amorphous V2O5 matrix. It is further shown that cells fabricated with the MoO3-V2O5 nanocomposite thin film electrodes give better cycling performance than those made with the single V2O5 thin film electrodes. A possible explanation for the MoO3 nano-dot dependence on the cycling performance of the V2O5-based thin film electrodes is described.

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