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

Journal Article · · MRS Advances
DOI:https://doi.org/10.1557/adv.2018.281· OSTI ID:1470269
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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.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Organization:
USDOE SC Office of Basic Energy Sciences (SC-22)
DOE Contract Number:
SC0012673
OSTI ID:
1470269
Journal Information:
MRS Advances, Journal Name: MRS Advances Journal Issue: 22 Vol. 3; ISSN 2059-8521; ISSN applab
Publisher:
Materials Research Society (MRS)
Country of Publication:
United States
Language:
English

References (11)

Visualization of structural evolution and phase distribution of a lithium vanadium oxide (Li 1.1 V 3 O 8 ) electrode via an operando and in situ energy dispersive X-ray diffraction technique journal January 2017
Publisher's Note: Sonochemical Deposition of Sn, SnO 2 and Sb on Spherical Hard Carbon Electrodes for Li-Ion Batteries [ J. Electrochem. Soc., 161, A777 (2014)] journal January 2014
Li6V10O28, a novel cathode material for Li-ion battery journal February 2007
Discharge, Relaxation, and Charge Model for the Lithium Trivanadate Electrode: Reactions, Phase Change, and Transport journal January 2016
Investigation of Structural Evolution of Li 1.1 V 3 O 8 by In Situ X-ray Diffraction and Density Functional Theory Calculations journal February 2017
High capacity positive electrodes for secondary Mg-ion batteries journal November 2012
Anode Characterization in Zinc-Manganese Dioxide AA Alkaline Batteries Using Electrochemical-Acoustic Time-of-Flight Analysis journal January 2016
In situ strain profiling of elastoplastic bending in Ti–6Al–4V alloy by synchrotron energy dispersive x-ray diffraction journal May 2009
A combined X-ray and neutron Rietveld study of the chemically lithiated electrode materials Li2.7V3O8 and Li4.8V3O8 journal January 2005
Energy dispersive X-ray diffraction of lithium–silver vanadium phosphorous oxide cells: in situ cathode depth profiling of an electrochemical reduction–displacement reaction journal January 2013
Structural characterization of Li1+xV3O8 insertion electrodes by single-crystal X-ray diffraction journal August 1993

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energy storage (including batteries and capacitors)
charge transport
mesostructured materials