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Title: Anomalous Discharge Product Distribution in Lithium-Air Cathodes: A Three Dimensional View

Abstract

Using neutron tomographic imaging we report for the first time three dimensional spatial distribution of lithium product distribution in electrochemically discharged Lithium-Air cathodes. Neutron imaging finds a non-uniform lithium product distribution across the electrode thickness; the lithium species concentration being higher near the edges of the Li-air electrode and relatively uniform in the center of the electrode. The experimental neutron images were analyzed in context of results obtained from 3D modeling of the spatial lithium product distribution using a kinetically coupled diffusion based transport model that accounts for the dynamical reaction rate dependence on the discharge product formation, porosity changes and mass transfer.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1039222
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry C
Additional Journal Information:
Journal Volume: 116; Journal Issue: 15; Journal ID: ISSN 1932-7447
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CATHODES; DIFFUSION; DISTRIBUTION; ELECTRODES; LITHIUM; MASS TRANSFER; NEUTRONS; POROSITY; REACTION KINETICS; SIMULATION; SPATIAL DISTRIBUTION; THICKNESS; TRANSPORT; Energy Storage; Lithium-Air; Carbon foams

Citation Formats

Nanda, Jagjit, Allu, Srikanth, Bilheux, Hassina Z, Dudney, Nancy J, Pannala, Sreekanth, Veith, Gabriel M, Voisin, Sophie, Walker, Lakeisha MH, and Archibald, Richard K. Anomalous Discharge Product Distribution in Lithium-Air Cathodes: A Three Dimensional View. United States: N. p., 2012. Web. doi:10.1021/jp3016003.
Nanda, Jagjit, Allu, Srikanth, Bilheux, Hassina Z, Dudney, Nancy J, Pannala, Sreekanth, Veith, Gabriel M, Voisin, Sophie, Walker, Lakeisha MH, & Archibald, Richard K. Anomalous Discharge Product Distribution in Lithium-Air Cathodes: A Three Dimensional View. United States. https://doi.org/10.1021/jp3016003
Nanda, Jagjit, Allu, Srikanth, Bilheux, Hassina Z, Dudney, Nancy J, Pannala, Sreekanth, Veith, Gabriel M, Voisin, Sophie, Walker, Lakeisha MH, and Archibald, Richard K. 2012. "Anomalous Discharge Product Distribution in Lithium-Air Cathodes: A Three Dimensional View". United States. https://doi.org/10.1021/jp3016003.
@article{osti_1039222,
title = {Anomalous Discharge Product Distribution in Lithium-Air Cathodes: A Three Dimensional View},
author = {Nanda, Jagjit and Allu, Srikanth and Bilheux, Hassina Z and Dudney, Nancy J and Pannala, Sreekanth and Veith, Gabriel M and Voisin, Sophie and Walker, Lakeisha MH and Archibald, Richard K},
abstractNote = {Using neutron tomographic imaging we report for the first time three dimensional spatial distribution of lithium product distribution in electrochemically discharged Lithium-Air cathodes. Neutron imaging finds a non-uniform lithium product distribution across the electrode thickness; the lithium species concentration being higher near the edges of the Li-air electrode and relatively uniform in the center of the electrode. The experimental neutron images were analyzed in context of results obtained from 3D modeling of the spatial lithium product distribution using a kinetically coupled diffusion based transport model that accounts for the dynamical reaction rate dependence on the discharge product formation, porosity changes and mass transfer.},
doi = {10.1021/jp3016003},
url = {https://www.osti.gov/biblio/1039222}, journal = {Journal of Physical Chemistry C},
issn = {1932-7447},
number = 15,
volume = 116,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2012},
month = {Sun Jan 01 00:00:00 EST 2012}
}