Lithium vanadium oxide (Li1.1V3O8) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry

Qing Zhang; Andrew K. Kercher; Gabriel M. Veith; Varun Sarbada; Alexander B. Brady; Jing Li; Eric A. Stach; Robert Hull; Kenneth J. Takeuchi; Esther S. Takeuchi; Nancy J. Dudney; Amy C. Marschilok

doi:10.1149/2.0881707jes

Lithium vanadium oxide (Li_1.1V₃O₈) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry

Qing Zhang, Andrew K. Kercher, Gabriel M. Veith, Varun Sarbada, Alexander B. Brady, Jing Li, Eric A. Stach, Robert Hull, Kenneth J. Takeuchi, Esther S. Takeuchi, Nancy J. Dudney, Amy C. Marschilok

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

9 Scopus citations

Abstract

In the present work, lithium vanadium oxide (Li_1.1V₃O₈) particles synthesized at two different temperatures were coated with an amorphous lithium phosphorous oxynitride (LiPON) film for the first time, and the effects of the LiPON coating on the electrochemistry of the Li_1.1V₃O₈ materials with different morphologies were systematically investigated by comparing uncoated Li_1.1V₃O₈ and Li_1.1V₃O₈ coated with LiPON of various thicknesses. Galvanostatic discharge-charge cycling revealed increased functional capacity for the LiPON-coated materials. Post-cycling electrochemical impedance spectroscopy showed that LiPON-coated Li_1.1V₃O₈ materials developed less interfacial resistance with extended cycling, rationalized by vanadium migration into the LiPON coating seen by electron energy loss spectra. Post-mortem quantitative analysis of the anodes revealed more severe vanadium dissolution for the more irregularly shaped Li_1.1V₃O₈ materials with less LiPON coverage. Thus, this study highlights the specific benefits and limitations of LiPON coatings for stabilizing a moderate voltage Li_1.1V₃O₈ cathode material under extended cycling in liquid electrolyte, and describes a generally applicable approach for comprehensive characterization of a composite electroactive material which can be used to understand interfacial transport properties in other functional systems.

Original language	English
Pages (from-to)	A1503-A1513
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	7
DOIs	https://doi.org/10.1149/2.0881707jes
State	Published - 2017

Funding

This work was supported as part of the Center for Mesoscale Transport Properties, an Energy Frontier Research Center supported by the U. S. Department of Energy, Office of Science, Basic Energy Sciences, under award #DE-SC0012673. XPS at ORNL was supported by the U. S. Department of Energy, Office of Basic Energy Science, Division of Materials Science and Engineering. Transmission electron microscopy at Brookhaven National Laboratory used resources of the Center for Functional Nanomaterials, which is a US DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. Transmission electron microscopy at RPI made extensive use of the facilities in the Center for Materials, Devices and Integrated Systems (cMDIS).

Funders	Funder number
DOE Office of Science
Division of Materials Science and Engineering
Office of Basic Energy Science
U. S. Department of Energy
Office of Science
Basic Energy Sciences	-SC0012673
Brookhaven National Laboratory	DE-SC0012704

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

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10.1149/2.0881707jes

Cite this

Zhang, Q., Kercher, A. K., Veith, G. M., Sarbada, V., Brady, A. B., Li, J., Stach, E. A., Hull, R., Takeuchi, K. J., Takeuchi, E. S., Dudney, N. J., & Marschilok, A. C. (2017). Lithium vanadium oxide (Li_1.1V₃O₈) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry. Journal of the Electrochemical Society, 164(7), A1503-A1513. https://doi.org/10.1149/2.0881707jes

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title = "Lithium vanadium oxide (Li1.1V3O8) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry",

abstract = "In the present work, lithium vanadium oxide (Li1.1V3O8) particles synthesized at two different temperatures were coated with an amorphous lithium phosphorous oxynitride (LiPON) film for the first time, and the effects of the LiPON coating on the electrochemistry of the Li1.1V3O8 materials with different morphologies were systematically investigated by comparing uncoated Li1.1V3O8 and Li1.1V3O8 coated with LiPON of various thicknesses. Galvanostatic discharge-charge cycling revealed increased functional capacity for the LiPON-coated materials. Post-cycling electrochemical impedance spectroscopy showed that LiPON-coated Li1.1V3O8 materials developed less interfacial resistance with extended cycling, rationalized by vanadium migration into the LiPON coating seen by electron energy loss spectra. Post-mortem quantitative analysis of the anodes revealed more severe vanadium dissolution for the more irregularly shaped Li1.1V3O8 materials with less LiPON coverage. Thus, this study highlights the specific benefits and limitations of LiPON coatings for stabilizing a moderate voltage Li1.1V3O8 cathode material under extended cycling in liquid electrolyte, and describes a generally applicable approach for comprehensive characterization of a composite electroactive material which can be used to understand interfacial transport properties in other functional systems.",

author = "Qing Zhang and Kercher, {Andrew K.} and Veith, {Gabriel M.} and Varun Sarbada and Brady, {Alexander B.} and Jing Li and Stach, {Eric A.} and Robert Hull and Takeuchi, {Kenneth J.} and Takeuchi, {Esther S.} and Dudney, {Nancy J.} and Marschilok, {Amy C.}",

year = "2017",

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language = "English",

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Zhang, Q, Kercher, AK , Veith, GM, Sarbada, V, Brady, AB, Li, J, Stach, EA, Hull, R, Takeuchi, KJ, Takeuchi, ES, Dudney, NJ & Marschilok, AC 2017, 'Lithium vanadium oxide (Li_1.1V₃O₈) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry', Journal of the Electrochemical Society, vol. 164, no. 7, pp. A1503-A1513. https://doi.org/10.1149/2.0881707jes

Lithium vanadium oxide (Li_1.1V₃O₈) coated with amorphous lithium phosphorous oxynitride (LiPON): Role of material morphology and interfacial structure on resulting electrochemistry. / Zhang, Qing; Kercher, Andrew K.; Veith, Gabriel M. et al.
In: Journal of the Electrochemical Society, Vol. 164, No. 7, 2017, p. A1503-A1513.

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

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T2 - Role of material morphology and interfacial structure on resulting electrochemistry

AU - Zhang, Qing

AU - Kercher, Andrew K.

AU - Veith, Gabriel M.

AU - Sarbada, Varun

AU - Brady, Alexander B.

AU - Li, Jing

AU - Stach, Eric A.

AU - Hull, Robert

AU - Takeuchi, Kenneth J.

AU - Takeuchi, Esther S.

AU - Dudney, Nancy J.

AU - Marschilok, Amy C.

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N2 - In the present work, lithium vanadium oxide (Li1.1V3O8) particles synthesized at two different temperatures were coated with an amorphous lithium phosphorous oxynitride (LiPON) film for the first time, and the effects of the LiPON coating on the electrochemistry of the Li1.1V3O8 materials with different morphologies were systematically investigated by comparing uncoated Li1.1V3O8 and Li1.1V3O8 coated with LiPON of various thicknesses. Galvanostatic discharge-charge cycling revealed increased functional capacity for the LiPON-coated materials. Post-cycling electrochemical impedance spectroscopy showed that LiPON-coated Li1.1V3O8 materials developed less interfacial resistance with extended cycling, rationalized by vanadium migration into the LiPON coating seen by electron energy loss spectra. Post-mortem quantitative analysis of the anodes revealed more severe vanadium dissolution for the more irregularly shaped Li1.1V3O8 materials with less LiPON coverage. Thus, this study highlights the specific benefits and limitations of LiPON coatings for stabilizing a moderate voltage Li1.1V3O8 cathode material under extended cycling in liquid electrolyte, and describes a generally applicable approach for comprehensive characterization of a composite electroactive material which can be used to understand interfacial transport properties in other functional systems.

AB - In the present work, lithium vanadium oxide (Li1.1V3O8) particles synthesized at two different temperatures were coated with an amorphous lithium phosphorous oxynitride (LiPON) film for the first time, and the effects of the LiPON coating on the electrochemistry of the Li1.1V3O8 materials with different morphologies were systematically investigated by comparing uncoated Li1.1V3O8 and Li1.1V3O8 coated with LiPON of various thicknesses. Galvanostatic discharge-charge cycling revealed increased functional capacity for the LiPON-coated materials. Post-cycling electrochemical impedance spectroscopy showed that LiPON-coated Li1.1V3O8 materials developed less interfacial resistance with extended cycling, rationalized by vanadium migration into the LiPON coating seen by electron energy loss spectra. Post-mortem quantitative analysis of the anodes revealed more severe vanadium dissolution for the more irregularly shaped Li1.1V3O8 materials with less LiPON coverage. Thus, this study highlights the specific benefits and limitations of LiPON coatings for stabilizing a moderate voltage Li1.1V3O8 cathode material under extended cycling in liquid electrolyte, and describes a generally applicable approach for comprehensive characterization of a composite electroactive material which can be used to understand interfacial transport properties in other functional systems.

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