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Title: Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained via Ex-Situ, In-Situ, and Operando Experiments and Density Functional Theory

Abstract

ABSTRACT Understanding the structural evolution of electrode material during electrochemical activity is important to elucidate the mechanism of (de)lithiation, and improve the electrochemical function based on the material properties. In this study, lithium vanadium oxide (LVO, LiV 3O 8) was investigated using ex-situ, in-situ, and operando experiments. Via a combination of in-situ X-ray diffraction (XRD) and density functional theory results, a reversible structural evolution during lithiation was revealed: from Li poor α phase (LiV 3O 8) to Li rich α phase (Li 2.5V 3O 8) and finally β phase (Li 4V 3O 8). In-situ and operando energy dispersive X-ray diffraction (EDXRD) provided tomographic information to visualize the spatial location of the phase evolution within the LVO electrode while inside a sealed lithium ion battery.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1470269
DOE Contract Number:  
SC0012673
Resource Type:
Journal Article
Journal Name:
MRS Advances
Additional Journal Information:
Journal Volume: 3; Journal Issue: 22; Related Information: m2M partners with Stony Brook University (lead); Brookhaven National Laboratory; Columbia University; Georgia Institute of Technology; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; University of California, Berkeley; University of North Carolina at Chapel Hill; Journal ID: ISSN 2059-8521
Publisher:
Materials Research Society (MRS)
Country of Publication:
United States
Language:
English
Subject:
energy storage (including batteries and capacitors), charge transport, mesostructured materials

Citation Formats

Yin, Jiefu, Li, Wenzao, Dunkin, Mikaela, Takeuchi, Esther S., Takeuchi, Kenneth J., and Marschilok, Amy C. Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained via Ex-Situ, In-Situ, and Operando Experiments and Density Functional Theory. United States: N. p., 2018. Web. doi:10.1557/adv.2018.281.
Yin, Jiefu, Li, Wenzao, Dunkin, Mikaela, Takeuchi, Esther S., Takeuchi, Kenneth J., & Marschilok, Amy C. Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained via Ex-Situ, In-Situ, and Operando Experiments and Density Functional Theory. United States. https://doi.org/10.1557/adv.2018.281
Yin, Jiefu, Li, Wenzao, Dunkin, Mikaela, Takeuchi, Esther S., Takeuchi, Kenneth J., and Marschilok, Amy C. Mon . "Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained via Ex-Situ, In-Situ, and Operando Experiments and Density Functional Theory". United States. https://doi.org/10.1557/adv.2018.281.
@article{osti_1470269,
title = {Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained via Ex-Situ, In-Situ, and Operando Experiments and Density Functional Theory},
author = {Yin, Jiefu and Li, Wenzao and Dunkin, Mikaela and Takeuchi, Esther S. and Takeuchi, Kenneth J. and Marschilok, Amy C.},
abstractNote = {ABSTRACT Understanding the structural evolution of electrode material during electrochemical activity is important to elucidate the mechanism of (de)lithiation, and improve the electrochemical function based on the material properties. In this study, lithium vanadium oxide (LVO, LiV3O8) was investigated using ex-situ, in-situ, and operando experiments. Via a combination of in-situ X-ray diffraction (XRD) and density functional theory results, a reversible structural evolution during lithiation was revealed: from Li poor α phase (LiV3O8) to Li rich α phase (Li2.5V3O8) and finally β phase (Li4V3O8). In-situ and operando energy dispersive X-ray diffraction (EDXRD) provided tomographic information to visualize the spatial location of the phase evolution within the LVO electrode while inside a sealed lithium ion battery.},
doi = {10.1557/adv.2018.281},
url = {https://www.osti.gov/biblio/1470269}, journal = {MRS Advances},
issn = {2059-8521},
number = 22,
volume = 3,
place = {United States},
year = {2018},
month = {1}
}

Works referenced in this record:

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