Journal article
Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles
ACS applied energy materials, Vol.1(9), pp.4479-4484
01 Sep 2018
Featured in Collection : UN Sustainable Development Goals @ Drexel
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.
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Details
- Title
- Three-Dimensional Visualization of Conductive Domains in Battery Electrodes with Contrast-Enhancing Nanoparticles
- Creators
- Samantha L. Morelly - Drexel UniversityJeff Gelb - Sigray, Incorporated, 5750 Imhoff Drive, Suite I, Concord, California 94520, United StatesFrancesco Iacoviello - University College LondonPaul R. Shearing - University College LondonStephen J. Harris - Lawrence Berkeley National LaboratoryNicolas J. Alvarez - Drexel UniversityMaureen H. Tang - Drexel UniversityLawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Details
- ACS applied energy materials, Vol.1(9), pp.4479-4484
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 11
- Grant note
- Royal Academy of Engineering; Royal Academy of Engineering - UK Drexel University's College of Engineering Vehicle Technologies Office of the U.S. Department of Energy (U.S. DOE) under the Advanced Battery Materials Research (BMR) Program; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Identifiers
- 991019167756904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Energy & Fuels
- Materials Science, Multidisciplinary