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Title: Lithium Vanadium Oxide (Li 1.1V 3O 8) Coated with Amorphous Lithium Phosphorous Oxynitride (LiPON): Role of Material Morphology and Interfacial Structure on Resulting Electrochemistry

In the present work, lithium vanadium oxide (Li 1.1V 3O 8) 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 1.1V 3O 8 materials with different morphologies were systematically investigated by comparing uncoated Li 1.1V 3O 8 and Li 1.1V 3O 8 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 1.1V 3O 8 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 1.1V 3O 8 materials with less LiPON coverage. Thus, this study highlights the specific benefits and limitations of LiPON coatings for stabilizing a moderate voltage Li 1.1V 3O 8 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.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [1] ;  [4] ;  [3] ;  [1] ;  [5] ;  [2] ;  [1]
  1. Stony Brook Univ., NY (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Rensselaer Polytechnic Inst., Troy, NY (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-114248-2017-JA
Journal ID: ISSN 0013-4651
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 164; Journal Issue: 7; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE
OSTI Identifier:
1389243

Zhang, Qing, Kercher, Andrew K., Veith, Gabriel M., Sarbada, Varun, Brady, Alexander B., Li, Jing, Stach, Eric A., Hull, Robert, Takeuchi, Kenneth J., Takeuchi, Esther S., Dudney, Nancy J., and Marschilok, Amy C.. Lithium Vanadium Oxide (Li1.1V3O8) Coated with Amorphous Lithium Phosphorous Oxynitride (LiPON): Role of Material Morphology and Interfacial Structure on Resulting Electrochemistry. United States: N. p., Web. doi:10.1149/2.0881707jes.
Zhang, Qing, Kercher, Andrew K., Veith, Gabriel M., Sarbada, Varun, Brady, Alexander B., Li, Jing, Stach, Eric A., Hull, Robert, Takeuchi, Kenneth J., Takeuchi, Esther S., Dudney, Nancy J., & Marschilok, Amy C.. Lithium Vanadium Oxide (Li1.1V3O8) Coated with Amorphous Lithium Phosphorous Oxynitride (LiPON): Role of Material Morphology and Interfacial Structure on Resulting Electrochemistry. United States. doi:10.1149/2.0881707jes.
Zhang, Qing, Kercher, Andrew K., Veith, Gabriel M., Sarbada, Varun, Brady, Alexander B., Li, Jing, Stach, Eric A., Hull, Robert, Takeuchi, Kenneth J., Takeuchi, Esther S., Dudney, Nancy J., and Marschilok, Amy C.. 2017. "Lithium Vanadium Oxide (Li1.1V3O8) Coated with Amorphous Lithium Phosphorous Oxynitride (LiPON): Role of Material Morphology and Interfacial Structure on Resulting Electrochemistry". United States. doi:10.1149/2.0881707jes. https://www.osti.gov/servlets/purl/1389243.
@article{osti_1389243,
title = {Lithium Vanadium Oxide (Li1.1V3O8) Coated with Amorphous Lithium Phosphorous Oxynitride (LiPON): Role of Material Morphology and Interfacial Structure on Resulting Electrochemistry},
author = {Zhang, Qing and Kercher, Andrew K. and Veith, Gabriel M. and Sarbada, Varun and Brady, Alexander B. and Li, Jing and Stach, Eric A. and Hull, Robert and Takeuchi, Kenneth J. and Takeuchi, Esther S. and Dudney, Nancy J. and Marschilok, Amy C.},
abstractNote = {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.},
doi = {10.1149/2.0881707jes},
journal = {Journal of the Electrochemical Society},
number = 7,
volume = 164,
place = {United States},
year = {2017},
month = {5}
}