Formation of an SEI on a LiMn2O4 cathode during room temperature charge-discharge cycling studied by soft X-ray absorption spectroscopy at the Fluorine K-edge

Kyung Yoon Chung, Won Sub Yoon, Kwang Bum Kim, Byung Won Cho, Xiao Qing Yang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The solid electrolyte interface (SEI) formation on the surface of LiMn 2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiFformation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF.

Original languageEnglish
Pages (from-to)1295-1299
Number of pages5
JournalJournal of Applied Electrochemistry
Volume41
Issue number11
DOIs
Publication statusPublished - 2011 Nov 1

Fingerprint

X ray absorption spectroscopy
Fluorine
Solid electrolytes
Cathodes
Absorption spectra
Binders
Temperature
Electrodes
X ray absorption
Electrostatics
lithium manganese oxide

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Chemistry
  • Electrochemistry

Cite this

@article{845354cce3a944dc9ef2b184ceadbe53,
title = "Formation of an SEI on a LiMn2O4 cathode during room temperature charge-discharge cycling studied by soft X-ray absorption spectroscopy at the Fluorine K-edge",
abstract = "The solid electrolyte interface (SEI) formation on the surface of LiMn 2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiFformation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF.",
author = "Chung, {Kyung Yoon} and Yoon, {Won Sub} and Kim, {Kwang Bum} and Cho, {Byung Won} and Yang, {Xiao Qing}",
year = "2011",
month = "11",
day = "1",
doi = "10.1007/s10800-011-0344-6",
language = "English",
volume = "41",
pages = "1295--1299",
journal = "Journal of Applied Electrochemistry",
issn = "0021-891X",
publisher = "Springer Netherlands",
number = "11",

}

Formation of an SEI on a LiMn2O4 cathode during room temperature charge-discharge cycling studied by soft X-ray absorption spectroscopy at the Fluorine K-edge. / Chung, Kyung Yoon; Yoon, Won Sub; Kim, Kwang Bum; Cho, Byung Won; Yang, Xiao Qing.

In: Journal of Applied Electrochemistry, Vol. 41, No. 11, 01.11.2011, p. 1295-1299.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Formation of an SEI on a LiMn2O4 cathode during room temperature charge-discharge cycling studied by soft X-ray absorption spectroscopy at the Fluorine K-edge

AU - Chung, Kyung Yoon

AU - Yoon, Won Sub

AU - Kim, Kwang Bum

AU - Cho, Byung Won

AU - Yang, Xiao Qing

PY - 2011/11/1

Y1 - 2011/11/1

N2 - The solid electrolyte interface (SEI) formation on the surface of LiMn 2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiFformation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF.

AB - The solid electrolyte interface (SEI) formation on the surface of LiMn 2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiFformation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF.

UR - http://www.scopus.com/inward/record.url?scp=83155175298&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=83155175298&partnerID=8YFLogxK

U2 - 10.1007/s10800-011-0344-6

DO - 10.1007/s10800-011-0344-6

M3 - Article

AN - SCOPUS:83155175298

VL - 41

SP - 1295

EP - 1299

JO - Journal of Applied Electrochemistry

JF - Journal of Applied Electrochemistry

SN - 0021-891X

IS - 11

ER -