XAS and electrochemical characterization of lithium intercalated V2O5 xerogels

Stefano Passerini; William H. Smyrl; Mario Berrettoni; Roberto Tossici; Mauricio Rosolen; Roberto Marassi; Franco Decker

doi:10.1016/s0167-2738(96)00380-3

XAS and electrochemical characterization of lithium intercalated V₂O₅ xerogels

Stefano Passerini, William H. Smyrl, Mario Berrettoni, Roberto Tossici, Mauricio Rosolen, Roberto Marassi, Franco Decker

Chemical Engineering and Materials Science

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

70 Scopus citations

Abstract

The use of sol-gel processes in the preparation of cathode materials is of growing interest because of their ease and flexibility. The electrochemical properties, e.g. the rate of lithium intercalation, appear to depend on the morphology of the thin-film vanadium oxide xerogels that can be changed by modifying the preparation. In this context, in order to extend the study to bulk materials, xerogel powder samples with surface areas in the range 2-5 m²/g have been prepared from pure vanadium pentoxide hydrogels, or in the form of composites, from carbon powder added to hydrogels. The electrochemical properties have been correlated with the morphological and structural changes induced by the presence of carbon using X-ray and XAS spectroscopy.

Original language	English (US)
Pages (from-to)	5-14
Number of pages	10
Journal	Solid State Ionics
Volume	90
Issue number	1-4
DOIs	https://doi.org/10.1016/s0167-2738(96)00380-3
State	Published - Sep 1996

Bibliographical note

Funding Information:
The research at the University of Minnesota was supported by ARPA contract N/NOOO14-92-J-1875. Measurements at Daresbury Laboratory were supported by Grant 26-353. M.R. wishes to thank The University of Camerino for its hospitality.

Keywords

Lithium intercalation
Sol-gel processes
XAS spectroscopy
Xerogels

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10.1016/s0167-2738(96)00380-3

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@article{1ab805e55de54412832d9cc582a9f0a3,

title = "XAS and electrochemical characterization of lithium intercalated V2O5 xerogels",

abstract = "The use of sol-gel processes in the preparation of cathode materials is of growing interest because of their ease and flexibility. The electrochemical properties, e.g. the rate of lithium intercalation, appear to depend on the morphology of the thin-film vanadium oxide xerogels that can be changed by modifying the preparation. In this context, in order to extend the study to bulk materials, xerogel powder samples with surface areas in the range 2-5 m2/g have been prepared from pure vanadium pentoxide hydrogels, or in the form of composites, from carbon powder added to hydrogels. The electrochemical properties have been correlated with the morphological and structural changes induced by the presence of carbon using X-ray and XAS spectroscopy.",

keywords = "Lithium intercalation, Sol-gel processes, XAS spectroscopy, Xerogels",

author = "Stefano Passerini and Smyrl, {William H.} and Mario Berrettoni and Roberto Tossici and Mauricio Rosolen and Roberto Marassi and Franco Decker",

note = "Funding Information: The research at the University of Minnesota was supported by ARPA contract N/NOOO14-92-J-1875. Measurements at Daresbury Laboratory were supported by Grant 26-353. M.R. wishes to thank The University of Camerino for its hospitality.",

year = "1996",

month = sep,

doi = "10.1016/s0167-2738(96)00380-3",

language = "English (US)",

volume = "90",

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T1 - XAS and electrochemical characterization of lithium intercalated V2O5 xerogels

AU - Passerini, Stefano

AU - Smyrl, William H.

AU - Berrettoni, Mario

AU - Tossici, Roberto

AU - Rosolen, Mauricio

AU - Marassi, Roberto

AU - Decker, Franco

N1 - Funding Information: The research at the University of Minnesota was supported by ARPA contract N/NOOO14-92-J-1875. Measurements at Daresbury Laboratory were supported by Grant 26-353. M.R. wishes to thank The University of Camerino for its hospitality.

PY - 1996/9

Y1 - 1996/9

N2 - The use of sol-gel processes in the preparation of cathode materials is of growing interest because of their ease and flexibility. The electrochemical properties, e.g. the rate of lithium intercalation, appear to depend on the morphology of the thin-film vanadium oxide xerogels that can be changed by modifying the preparation. In this context, in order to extend the study to bulk materials, xerogel powder samples with surface areas in the range 2-5 m2/g have been prepared from pure vanadium pentoxide hydrogels, or in the form of composites, from carbon powder added to hydrogels. The electrochemical properties have been correlated with the morphological and structural changes induced by the presence of carbon using X-ray and XAS spectroscopy.

AB - The use of sol-gel processes in the preparation of cathode materials is of growing interest because of their ease and flexibility. The electrochemical properties, e.g. the rate of lithium intercalation, appear to depend on the morphology of the thin-film vanadium oxide xerogels that can be changed by modifying the preparation. In this context, in order to extend the study to bulk materials, xerogel powder samples with surface areas in the range 2-5 m2/g have been prepared from pure vanadium pentoxide hydrogels, or in the form of composites, from carbon powder added to hydrogels. The electrochemical properties have been correlated with the morphological and structural changes induced by the presence of carbon using X-ray and XAS spectroscopy.

KW - Lithium intercalation

KW - Sol-gel processes

KW - XAS spectroscopy

KW - Xerogels

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