Morphological changes in and around Sn electrodes during Li ion cycling characterized by in situ environmental TEM

Kyong Wook Noh; Shen J. Dillon

doi:10.1016/j.scriptamat.2013.07.028

Morphological changes in and around Sn electrodes during Li ion cycling characterized by in situ environmental TEM

Kyong Wook Noh, Shen J. Dillon

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

Abstract

Sn electrodes are cycled against Li metal in situ in a transmission electron microscope in commercial liquid electrolyte. The strain associated with the dealloying reaction is accommodated by the formation of nanoscale porosity. Significant asymmetry in the charge vs. discharge rate results from the effects of solid-electrolyte interphase formation in the confined geometry during lithiation. This layer partially dissolves during delithiation. This cyclic formation and dissolution of solid-electrolyte interphase should contribute significantly to the capacity fade observed in Sn-based electrodes.

Original language	English (US)
Pages (from-to)	658-661
Number of pages	4
Journal	Scripta Materialia
Volume	69
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2013.07.028
State	Published - Nov 2013

Keywords

Electron diffraction
Lithium ion batteries
Thin films
Transmission electron microscopy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Online availability

10.1016/j.scriptamat.2013.07.028

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title = "Morphological changes in and around Sn electrodes during Li ion cycling characterized by in situ environmental TEM",

abstract = "Sn electrodes are cycled against Li metal in situ in a transmission electron microscope in commercial liquid electrolyte. The strain associated with the dealloying reaction is accommodated by the formation of nanoscale porosity. Significant asymmetry in the charge vs. discharge rate results from the effects of solid-electrolyte interphase formation in the confined geometry during lithiation. This layer partially dissolves during delithiation. This cyclic formation and dissolution of solid-electrolyte interphase should contribute significantly to the capacity fade observed in Sn-based electrodes.",

keywords = "Electron diffraction, Lithium ion batteries, Thin films, Transmission electron microscopy",

author = "Noh, {Kyong Wook} and Dillon, {Shen J.}",

note = "Funding Information: The authors are grateful for funding provided by the US Department of Energy, Basic Energy Sciences (Contract No. DE-SC0006509). The research was carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois.",

year = "2013",

month = nov,

doi = "10.1016/j.scriptamat.2013.07.028",

language = "English (US)",

volume = "69",

pages = "658--661",

journal = "Scripta Materialia",

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publisher = "Elsevier Limited",

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TY - JOUR

T1 - Morphological changes in and around Sn electrodes during Li ion cycling characterized by in situ environmental TEM

AU - Noh, Kyong Wook

AU - Dillon, Shen J.

N1 - Funding Information: The authors are grateful for funding provided by the US Department of Energy, Basic Energy Sciences (Contract No. DE-SC0006509). The research was carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois.

PY - 2013/11

Y1 - 2013/11

N2 - Sn electrodes are cycled against Li metal in situ in a transmission electron microscope in commercial liquid electrolyte. The strain associated with the dealloying reaction is accommodated by the formation of nanoscale porosity. Significant asymmetry in the charge vs. discharge rate results from the effects of solid-electrolyte interphase formation in the confined geometry during lithiation. This layer partially dissolves during delithiation. This cyclic formation and dissolution of solid-electrolyte interphase should contribute significantly to the capacity fade observed in Sn-based electrodes.

AB - Sn electrodes are cycled against Li metal in situ in a transmission electron microscope in commercial liquid electrolyte. The strain associated with the dealloying reaction is accommodated by the formation of nanoscale porosity. Significant asymmetry in the charge vs. discharge rate results from the effects of solid-electrolyte interphase formation in the confined geometry during lithiation. This layer partially dissolves during delithiation. This cyclic formation and dissolution of solid-electrolyte interphase should contribute significantly to the capacity fade observed in Sn-based electrodes.

KW - Electron diffraction

KW - Lithium ion batteries

KW - Thin films

KW - Transmission electron microscopy

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DO - 10.1016/j.scriptamat.2013.07.028

M3 - Article

AN - SCOPUS:84884285733

SN - 1359-6462

VL - 69

SP - 658

EP - 661

JO - Scripta Materialia

JF - Scripta Materialia

IS - 9

ER -

Morphological changes in and around Sn electrodes during Li ion cycling characterized by in situ environmental TEM

Abstract

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