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  • Controlling interfacial reduction kinetics and suppressing electrochemical oscillations in Li4Ti5O12 thin-film anodes

    Rights statement: This is the peer reviewed version of the following article: Chen, Y., Pan, H., Lin, C., Li, J., Cai, R., Haigh, S. J., Zhao, G., Zhang, J., Lin, Y., Kolosov, O. V., Huang, Z., Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. Adv. Funct. Mater. 2021, 2105354. https://doi.org/10.1002/adfm.202105354 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/adfm.202105354 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

    Accepted author manuscript, 3.72 MB, PDF document

    Embargo ends: 6/08/22

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

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Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes

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Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. / Chen, Y.; Pan, H.; Lin, C.; Li, J.; Cai, R.; Haigh, S.J.; Zhao, G.; Zhang, J.; Lin, Y.; Kolosov, O.V.; Huang, Z.

In: Advanced Functional Materials, 06.08.2021.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Chen, Y, Pan, H, Lin, C, Li, J, Cai, R, Haigh, SJ, Zhao, G, Zhang, J, Lin, Y, Kolosov, OV & Huang, Z 2021, 'Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes', Advanced Functional Materials. https://doi.org/10.1002/adfm.202105354

APA

Chen, Y., Pan, H., Lin, C., Li, J., Cai, R., Haigh, S. J., Zhao, G., Zhang, J., Lin, Y., Kolosov, O. V., & Huang, Z. (2021). Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. Advanced Functional Materials. https://doi.org/10.1002/adfm.202105354

Vancouver

Author

Chen, Y. ; Pan, H. ; Lin, C. ; Li, J. ; Cai, R. ; Haigh, S.J. ; Zhao, G. ; Zhang, J. ; Lin, Y. ; Kolosov, O.V. ; Huang, Z. / Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. In: Advanced Functional Materials. 2021.

Bibtex

@article{dc62c2daa3c0424ba1ea557f9c58b133,
title = "Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes",
abstract = "Understanding the fundamentals of surface decoration effects in phase-separation materials, such as lithium titanate (LTO), is important for optimizing the lithium-ion battery (LIB) performance. LTO polycrystalline thin-film electrodes with and without doped Al–ZnO (AZO) surface coating decoration are used as ideal models to gain insights into the mechanisms involved. Operando shear force modulation spectroscopy is used to observe for the first time the nanoscale dynamics of solid-electrolyte-interphase (SEI) formation on the electrode surfaces, confirming that the AZO coating is electrochemically converted into a stiff, homogenous SEI layer that protects the surface from the electrolyte-induced decomposition. This AZO layer and its resultant artificial SEI-layer have higher Li-ion transport rates than the unmodified surface. These layers can reduce barriers to surface nucleation and facilitate rapid redistribution of lithium-ions during the Li4Ti5O12 ⇄ Li7Ti5O12 phase separation, significantly inhabiting the orderly collective phase-separation behavior (electrochemical oscillation) in the LTO electrode. The suppressed voltage oscillations indicate more homogeneous local exchange current density and de/intercalation states with the decorated electrodes, thereby extending their battery efficiency and long-term cycling stability. This work highlights the ultimate importance of surface treatment for LIB materials for determining their interfacial chemistry and phase transition during the intercalation/deintercalation. ",
keywords = "electrochemical oscillation behavior, lithium battery performance, lithium titanate thin-film electrode, operando shear force spectroscopy, surface decoration engineering, Aluminum coatings, Electrochemical electrodes, II-VI semiconductors, Ions, Lithium compounds, Molecular spectroscopy, Oxide minerals, Phase separation, Solid electrolytes, Surface treatment, Thin films, Titanium compounds, Zinc oxide, Battery efficiencies, Electrochemical oscillations, Exchange current densities, Phase separation behavior, Polycrystalline thin film, Solid electrolyte interphase, Surface nucleation, Voltage oscillation, Lithium-ion batteries",
author = "Y. Chen and H. Pan and C. Lin and J. Li and R. Cai and S.J. Haigh and G. Zhao and J. Zhang and Y. Lin and O.V. Kolosov and Z. Huang",
note = "This is the peer reviewed version of the following article: Chen, Y., Pan, H., Lin, C., Li, J., Cai, R., Haigh, S. J., Zhao, G., Zhang, J., Lin, Y., Kolosov, O. V., Huang, Z., Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. Adv. Funct. Mater. 2021, 2105354. https://doi.org/10.1002/adfm.202105354 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/adfm.202105354 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving. ",
year = "2021",
month = aug,
day = "6",
doi = "10.1002/adfm.202105354",
language = "English",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "John Wiley & Sons, Ltd",

}

RIS

TY - JOUR

T1 - Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes

AU - Chen, Y.

AU - Pan, H.

AU - Lin, C.

AU - Li, J.

AU - Cai, R.

AU - Haigh, S.J.

AU - Zhao, G.

AU - Zhang, J.

AU - Lin, Y.

AU - Kolosov, O.V.

AU - Huang, Z.

N1 - This is the peer reviewed version of the following article: Chen, Y., Pan, H., Lin, C., Li, J., Cai, R., Haigh, S. J., Zhao, G., Zhang, J., Lin, Y., Kolosov, O. V., Huang, Z., Controlling Interfacial Reduction Kinetics and Suppressing Electrochemical Oscillations in Li4Ti5O12 Thin-Film Anodes. Adv. Funct. Mater. 2021, 2105354. https://doi.org/10.1002/adfm.202105354 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/adfm.202105354 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2021/8/6

Y1 - 2021/8/6

N2 - Understanding the fundamentals of surface decoration effects in phase-separation materials, such as lithium titanate (LTO), is important for optimizing the lithium-ion battery (LIB) performance. LTO polycrystalline thin-film electrodes with and without doped Al–ZnO (AZO) surface coating decoration are used as ideal models to gain insights into the mechanisms involved. Operando shear force modulation spectroscopy is used to observe for the first time the nanoscale dynamics of solid-electrolyte-interphase (SEI) formation on the electrode surfaces, confirming that the AZO coating is electrochemically converted into a stiff, homogenous SEI layer that protects the surface from the electrolyte-induced decomposition. This AZO layer and its resultant artificial SEI-layer have higher Li-ion transport rates than the unmodified surface. These layers can reduce barriers to surface nucleation and facilitate rapid redistribution of lithium-ions during the Li4Ti5O12 ⇄ Li7Ti5O12 phase separation, significantly inhabiting the orderly collective phase-separation behavior (electrochemical oscillation) in the LTO electrode. The suppressed voltage oscillations indicate more homogeneous local exchange current density and de/intercalation states with the decorated electrodes, thereby extending their battery efficiency and long-term cycling stability. This work highlights the ultimate importance of surface treatment for LIB materials for determining their interfacial chemistry and phase transition during the intercalation/deintercalation.

AB - Understanding the fundamentals of surface decoration effects in phase-separation materials, such as lithium titanate (LTO), is important for optimizing the lithium-ion battery (LIB) performance. LTO polycrystalline thin-film electrodes with and without doped Al–ZnO (AZO) surface coating decoration are used as ideal models to gain insights into the mechanisms involved. Operando shear force modulation spectroscopy is used to observe for the first time the nanoscale dynamics of solid-electrolyte-interphase (SEI) formation on the electrode surfaces, confirming that the AZO coating is electrochemically converted into a stiff, homogenous SEI layer that protects the surface from the electrolyte-induced decomposition. This AZO layer and its resultant artificial SEI-layer have higher Li-ion transport rates than the unmodified surface. These layers can reduce barriers to surface nucleation and facilitate rapid redistribution of lithium-ions during the Li4Ti5O12 ⇄ Li7Ti5O12 phase separation, significantly inhabiting the orderly collective phase-separation behavior (electrochemical oscillation) in the LTO electrode. The suppressed voltage oscillations indicate more homogeneous local exchange current density and de/intercalation states with the decorated electrodes, thereby extending their battery efficiency and long-term cycling stability. This work highlights the ultimate importance of surface treatment for LIB materials for determining their interfacial chemistry and phase transition during the intercalation/deintercalation.

KW - electrochemical oscillation behavior

KW - lithium battery performance

KW - lithium titanate thin-film electrode

KW - operando shear force spectroscopy

KW - surface decoration engineering

KW - Aluminum coatings

KW - Electrochemical electrodes

KW - II-VI semiconductors

KW - Ions

KW - Lithium compounds

KW - Molecular spectroscopy

KW - Oxide minerals

KW - Phase separation

KW - Solid electrolytes

KW - Surface treatment

KW - Thin films

KW - Titanium compounds

KW - Zinc oxide

KW - Battery efficiencies

KW - Electrochemical oscillations

KW - Exchange current densities

KW - Phase separation behavior

KW - Polycrystalline thin film

KW - Solid electrolyte interphase

KW - Surface nucleation

KW - Voltage oscillation

KW - Lithium-ion batteries

U2 - 10.1002/adfm.202105354

DO - 10.1002/adfm.202105354

M3 - Journal article

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

ER -