DataVXACS Applied Energy MaterialsPaper
journal article·2018-09-24Open access

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

Samantha L. Morelly, Jeff Gelb, Francesco Iacoviello, Paul R. Shearing, Stephen J. Harris, Nicolas J. Alvarez, Maureen H. Tang

ACS Applied Energy Materials· Volume 1· Issue 9
Publisher pageOpen full text
Source abstract

Abstract

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.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Extraction and Separation Processes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States

Sigray, Incorporated, 5750 Imhoff Drive, Suite I, Concord, California 94520, United States

Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom

Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Funding

Vehicle Technologies Program · Division of Chemical, Bioengineering, Environmental, and Transport Systems · College of Engineering, Drexel University

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