Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Standard

Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition. / Nieminen, Heta Elisa; Miikkulainen, Ville; Settipani, Daniel; Simonelli, Laura; Hönicke, Philipp; Zech, Claudia; Kayser, Yves; Beckhoff, Burkhard; Honkanen, Ari Pekka; Heikkilä, Mikko J.; Mizohata, Kenichiro; Meinander, Kristoffer; Ylivaara, Oili M.E.; Huotari, Simo; Ritala, Mikko.

julkaisussa: Journal of Physical Chemistry C, Vuosikerta 123, Nro 25, 27.06.2019, s. 15802-15814.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Harvard

Nieminen, HE, Miikkulainen, V, Settipani, D, Simonelli, L, Hönicke, P, Zech, C, Kayser, Y, Beckhoff, B, Honkanen, AP, Heikkilä, MJ, Mizohata, K, Meinander, K, Ylivaara, OME, Huotari, S & Ritala, M 2019, 'Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition' Journal of Physical Chemistry C, Vuosikerta. 123, Nro 25, Sivut 15802-15814. https://doi.org/10.1021/acs.jpcc.9b03039

APA

Vancouver

Author

Nieminen, Heta Elisa ; Miikkulainen, Ville ; Settipani, Daniel ; Simonelli, Laura ; Hönicke, Philipp ; Zech, Claudia ; Kayser, Yves ; Beckhoff, Burkhard ; Honkanen, Ari Pekka ; Heikkilä, Mikko J. ; Mizohata, Kenichiro ; Meinander, Kristoffer ; Ylivaara, Oili M.E. ; Huotari, Simo ; Ritala, Mikko. / Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition. Julkaisussa: Journal of Physical Chemistry C. 2019 ; Vuosikerta 123, Nro 25. Sivut 15802-15814.

Bibtex - Lataa

@article{87038a464644431083de6c034e895315,
title = "Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition",
abstract = "LiMn2O4 is a promising candidate for a cathode material in lithium-ion batteries because of its ability to intercalate lithium ions reversibly through its three-dimensional manganese oxide network. One of the promising techniques for depositing LiMn2O4 thin-film cathodes is atomic layer deposition (ALD). Because of its unparalleled film thickness control and film conformality, ALD helps to fulfill the industry demands for smaller devices, nanostructured electrodes, and all-solid-state batteries. In this work, the intercalation mechanism of Li+ ions into an ALD-grown β-MnO2 thin film was studied. Samples were prepared by pulsing LiOtBu and H2O for different cycle numbers onto about 100 nm thick MnO2 films at 225 °C and characterized with X-ray absorption spectroscopy, X-ray diffraction, X-ray reflectivity, time-of-flight elastic recoil detection analysis, and residual stress measurements. It is proposed that for <100 cycles of LiOtBu/H2O, the Li+ ions penetrate only to the surface region of the β-MnO2 film, and the samples form a mixture of β-MnO2 and a lithium-deficient nonstoichiometric spinel phase LixMn2O4 (0 < x < 0.5). When the lithium concentration exceeds x ≈ 0.5 in LixMn2O4 (corresponding to 100 cycles of LiOtBu/H2O), the crystalline phase of manganese oxide changes from the tetragonal pyrolusite to the cubic spinel, which enables the Li+ ions to migrate throughout the whole film. Annealing in N2 at 600 °C after the lithium incorporation seemed to convert the films completely to the pure cubic spinel LiMn2O4.",
author = "Nieminen, {Heta Elisa} and Ville Miikkulainen and Daniel Settipani and Laura Simonelli and Philipp H{\"o}nicke and Claudia Zech and Yves Kayser and Burkhard Beckhoff and Honkanen, {Ari Pekka} and Heikkil{\"a}, {Mikko J.} and Kenichiro Mizohata and Kristoffer Meinander and Ylivaara, {Oili M.E.} and Simo Huotari and Mikko Ritala",
year = "2019",
month = "6",
day = "27",
doi = "10.1021/acs.jpcc.9b03039",
language = "English",
volume = "123",
pages = "15802--15814",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "25",

}

RIS - Lataa

TY - JOUR

T1 - Intercalation of Lithium Ions from Gaseous Precursors into β-MnO2 Thin Films Deposited by Atomic Layer Deposition

AU - Nieminen, Heta Elisa

AU - Miikkulainen, Ville

AU - Settipani, Daniel

AU - Simonelli, Laura

AU - Hönicke, Philipp

AU - Zech, Claudia

AU - Kayser, Yves

AU - Beckhoff, Burkhard

AU - Honkanen, Ari Pekka

AU - Heikkilä, Mikko J.

AU - Mizohata, Kenichiro

AU - Meinander, Kristoffer

AU - Ylivaara, Oili M.E.

AU - Huotari, Simo

AU - Ritala, Mikko

PY - 2019/6/27

Y1 - 2019/6/27

N2 - LiMn2O4 is a promising candidate for a cathode material in lithium-ion batteries because of its ability to intercalate lithium ions reversibly through its three-dimensional manganese oxide network. One of the promising techniques for depositing LiMn2O4 thin-film cathodes is atomic layer deposition (ALD). Because of its unparalleled film thickness control and film conformality, ALD helps to fulfill the industry demands for smaller devices, nanostructured electrodes, and all-solid-state batteries. In this work, the intercalation mechanism of Li+ ions into an ALD-grown β-MnO2 thin film was studied. Samples were prepared by pulsing LiOtBu and H2O for different cycle numbers onto about 100 nm thick MnO2 films at 225 °C and characterized with X-ray absorption spectroscopy, X-ray diffraction, X-ray reflectivity, time-of-flight elastic recoil detection analysis, and residual stress measurements. It is proposed that for <100 cycles of LiOtBu/H2O, the Li+ ions penetrate only to the surface region of the β-MnO2 film, and the samples form a mixture of β-MnO2 and a lithium-deficient nonstoichiometric spinel phase LixMn2O4 (0 < x < 0.5). When the lithium concentration exceeds x ≈ 0.5 in LixMn2O4 (corresponding to 100 cycles of LiOtBu/H2O), the crystalline phase of manganese oxide changes from the tetragonal pyrolusite to the cubic spinel, which enables the Li+ ions to migrate throughout the whole film. Annealing in N2 at 600 °C after the lithium incorporation seemed to convert the films completely to the pure cubic spinel LiMn2O4.

AB - LiMn2O4 is a promising candidate for a cathode material in lithium-ion batteries because of its ability to intercalate lithium ions reversibly through its three-dimensional manganese oxide network. One of the promising techniques for depositing LiMn2O4 thin-film cathodes is atomic layer deposition (ALD). Because of its unparalleled film thickness control and film conformality, ALD helps to fulfill the industry demands for smaller devices, nanostructured electrodes, and all-solid-state batteries. In this work, the intercalation mechanism of Li+ ions into an ALD-grown β-MnO2 thin film was studied. Samples were prepared by pulsing LiOtBu and H2O for different cycle numbers onto about 100 nm thick MnO2 films at 225 °C and characterized with X-ray absorption spectroscopy, X-ray diffraction, X-ray reflectivity, time-of-flight elastic recoil detection analysis, and residual stress measurements. It is proposed that for <100 cycles of LiOtBu/H2O, the Li+ ions penetrate only to the surface region of the β-MnO2 film, and the samples form a mixture of β-MnO2 and a lithium-deficient nonstoichiometric spinel phase LixMn2O4 (0 < x < 0.5). When the lithium concentration exceeds x ≈ 0.5 in LixMn2O4 (corresponding to 100 cycles of LiOtBu/H2O), the crystalline phase of manganese oxide changes from the tetragonal pyrolusite to the cubic spinel, which enables the Li+ ions to migrate throughout the whole film. Annealing in N2 at 600 °C after the lithium incorporation seemed to convert the films completely to the pure cubic spinel LiMn2O4.

UR - http://www.scopus.com/inward/record.url?scp=85068409389&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.9b03039

DO - 10.1021/acs.jpcc.9b03039

M3 - Article

VL - 123

SP - 15802

EP - 15814

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 25

ER -

ID: 36620379