A study on the effect of lithium insertion-extraction on the local structure of lithium manganese oxides using X-ray absorption spectroscopy

Oh Sung Kwon; Min Seuk Kim; Kwang Bum Kim

doi:10.1016/S0378-7753(99)00210-4

A study on the effect of lithium insertion-extraction on the local structure of lithium manganese oxides using X-ray absorption spectroscopy

Oh Sung Kwon, Min Seuk Kim, Kwang Bum Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

14 Citations (Scopus)

Abstract

Electronic and structural aspects of Li_xMn₂O₄ electrodes obtained from electrochemical oxidation-reduction process have been investigated by Mn K-edge X-ray absorption fine spectroscopy (XAFS). Charging of Li_xMn₂O₄ gave rise to an increase in the intensity of the peak at ca. 6543 eV and a shift of the overall peak positions towards higher energies in normalized X-ray absorption near-edge structure (XANES) spectra. Mean Mn-O bond length was at minimum in the charged state and it increased progressively with lithium insertion. Moreover, the extended X-ray absorption fine structure (EXAFS) spectrum of a second-charged Li_xMn₂O₄ electrode was somewhat different from that of the first one partly due to some disorder rendering different site energy.

Original language	English
Pages (from-to)	510-516
Number of pages	7
Journal	Journal of Power Sources
Volume	81-82
DOIs	https://doi.org/10.1016/S0378-7753(99)00210-4
Publication status	Published - 1999 Sept
Event	Proceedings of the 1998 Ninth International Meeting on Lithium Batteries - Edingburgh, United Kingdom Duration: 1998 Jul 12 → 1998 Jul 17

Bibliographical note

Funding Information:
This study was supported by Korea Science and Engineering Foundation (No. 96-0300-17-01-03). Experiments at PLS were supported in part by MOST and POSCO.

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/S0378-7753(99)00210-4

Cite this

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title = "A study on the effect of lithium insertion-extraction on the local structure of lithium manganese oxides using X-ray absorption spectroscopy",

abstract = "Electronic and structural aspects of LixMn2O4 electrodes obtained from electrochemical oxidation-reduction process have been investigated by Mn K-edge X-ray absorption fine spectroscopy (XAFS). Charging of LixMn2O4 gave rise to an increase in the intensity of the peak at ca. 6543 eV and a shift of the overall peak positions towards higher energies in normalized X-ray absorption near-edge structure (XANES) spectra. Mean Mn-O bond length was at minimum in the charged state and it increased progressively with lithium insertion. Moreover, the extended X-ray absorption fine structure (EXAFS) spectrum of a second-charged LixMn2O4 electrode was somewhat different from that of the first one partly due to some disorder rendering different site energy.",

author = "Kwon, {Oh Sung} and Kim, {Min Seuk} and Kim, {Kwang Bum}",

note = "Funding Information: This study was supported by Korea Science and Engineering Foundation (No. 96-0300-17-01-03). Experiments at PLS were supported in part by MOST and POSCO. ; Proceedings of the 1998 Ninth International Meeting on Lithium Batteries ; Conference date: 12-07-1998 Through 17-07-1998",

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doi = "10.1016/S0378-7753(99)00210-4",

language = "English",

volume = "81-82",

pages = "510--516",

journal = "Journal of Power Sources",

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T1 - A study on the effect of lithium insertion-extraction on the local structure of lithium manganese oxides using X-ray absorption spectroscopy

AU - Kwon, Oh Sung

AU - Kim, Min Seuk

AU - Kim, Kwang Bum

N1 - Funding Information: This study was supported by Korea Science and Engineering Foundation (No. 96-0300-17-01-03). Experiments at PLS were supported in part by MOST and POSCO.

PY - 1999/9

Y1 - 1999/9

N2 - Electronic and structural aspects of LixMn2O4 electrodes obtained from electrochemical oxidation-reduction process have been investigated by Mn K-edge X-ray absorption fine spectroscopy (XAFS). Charging of LixMn2O4 gave rise to an increase in the intensity of the peak at ca. 6543 eV and a shift of the overall peak positions towards higher energies in normalized X-ray absorption near-edge structure (XANES) spectra. Mean Mn-O bond length was at minimum in the charged state and it increased progressively with lithium insertion. Moreover, the extended X-ray absorption fine structure (EXAFS) spectrum of a second-charged LixMn2O4 electrode was somewhat different from that of the first one partly due to some disorder rendering different site energy.

AB - Electronic and structural aspects of LixMn2O4 electrodes obtained from electrochemical oxidation-reduction process have been investigated by Mn K-edge X-ray absorption fine spectroscopy (XAFS). Charging of LixMn2O4 gave rise to an increase in the intensity of the peak at ca. 6543 eV and a shift of the overall peak positions towards higher energies in normalized X-ray absorption near-edge structure (XANES) spectra. Mean Mn-O bond length was at minimum in the charged state and it increased progressively with lithium insertion. Moreover, the extended X-ray absorption fine structure (EXAFS) spectrum of a second-charged LixMn2O4 electrode was somewhat different from that of the first one partly due to some disorder rendering different site energy.

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DO - 10.1016/S0378-7753(99)00210-4

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AN - SCOPUS:0033184931

SN - 0378-7753

VL - 81-82

SP - 510

EP - 516

JO - Journal of Power Sources

JF - Journal of Power Sources

T2 - Proceedings of the 1998 Ninth International Meeting on Lithium Batteries

Y2 - 12 July 1998 through 17 July 1998

ER -

A study on the effect of lithium insertion-extraction on the local structure of lithium manganese oxides using X-ray absorption spectroscopy

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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