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Title: Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles

Abstract

Typically, replacing conductive carbon black with commercial carbon-coated iron nanoparticles yields an effective contrast-enhancing agent to differentiate between active material, conductive additive, and binder in lithium-ion battery electrodes. Nano-XCT resolved the carbon-binder domain with 126 nm voxel resolution, showing partial coatings around the active material particles and interparticle bridges. In a complementary analysis, SEM/EDS determined individual distributions of conductive additives and binder. Surprisingly, the contrast-enhancing agents showed that the effect of preparation parameters on the heterogeneity of conductive additives was weaker than on the binder. Incorporation of such contrast-enhancing additives can improve understanding of processing-structure-function relationships in a multitude of devices for energy conversion and storage.

Authors:
 [1];  [2];  [3]; ORCiD logo [3];  [4];  [1]; ORCiD logo [1]
  1. Drexel Univ., Philadelphia, PA (United States). Dept. of of Chemical and Biological Engineering
  2. Sigray, Incorporated, Concord, CA (United States)
  3. Univ. College London, (United Kingdom). Dept. of Chemical Engineering, Electrochemical Innovation Lab.
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Div.
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1526539
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Energy Materials
Additional Journal Information:
Journal Volume: 1; Journal Issue: 9; Journal ID: ISSN 2574-0962
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Morelly, Samantha L., Gelb, Jeff, Iacoviello, Francesco, Shearing, Paul R., Harris, Stephen J., Alvarez, Nicolas J., and Tang, Maureen H. Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles. United States: N. p., 2018. Web. doi:10.1021/acsaem.8b01184.
Morelly, Samantha L., Gelb, Jeff, Iacoviello, Francesco, Shearing, Paul R., Harris, Stephen J., Alvarez, Nicolas J., & Tang, Maureen H. Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles. United States. doi:10.1021/acsaem.8b01184.
Morelly, Samantha L., Gelb, Jeff, Iacoviello, Francesco, Shearing, Paul R., Harris, Stephen J., Alvarez, Nicolas J., and Tang, Maureen H. Wed . "Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles". United States. doi:10.1021/acsaem.8b01184. https://www.osti.gov/servlets/purl/1526539.
@article{osti_1526539,
title = {Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles},
author = {Morelly, Samantha L. and Gelb, Jeff and Iacoviello, Francesco and Shearing, Paul R. and Harris, Stephen J. and Alvarez, Nicolas J. and Tang, Maureen H.},
abstractNote = {Typically, replacing conductive carbon black with commercial carbon-coated iron nanoparticles yields an effective contrast-enhancing agent to differentiate between active material, conductive additive, and binder in lithium-ion battery electrodes. Nano-XCT resolved the carbon-binder domain with 126 nm voxel resolution, showing partial coatings around the active material particles and interparticle bridges. In a complementary analysis, SEM/EDS determined individual distributions of conductive additives and binder. Surprisingly, the contrast-enhancing agents showed that the effect of preparation parameters on the heterogeneity of conductive additives was weaker than on the binder. Incorporation of such contrast-enhancing additives can improve understanding of processing-structure-function relationships in a multitude of devices for energy conversion and storage.},
doi = {10.1021/acsaem.8b01184},
journal = {ACS Applied Energy Materials},
number = 9,
volume = 1,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
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