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Journal article
Linking electrode processing to carbon microstructure and battery performance via elemental mapping
Journal of power sources, v 664, 238908
01 Feb 2026
Featured in Collection : Research Supported by Drexel Libraries' OA Programs
Abstract
The effect of processing parameters on final electrode performance has been a prevalent topic of research for lithium-ion batteries. This study investigates the microstructural changes in Ni0.33Mn0.33Co0.33O2 (NMC111) cathodes using elemental mapping via energy-dispersive x-ray spectroscopy (EDS). The analysis uses a novel linear distribution function (LDF) to quantify the connections between active material and conductive carbon under different processing conditions, i.e., coating rates, drying temperatures, and wet film thicknesses. The LDF analysis demonstrates that calendering leads to increased short-range contacts between carbon and active material, independent of shear rate during coating, which improves electrode performance. Furthermore, the LDF analysis was used to identify electrodes with similar carbon-active particle microstructure, but different thicknesses and porosity, to determine the effect of ion transport on electrode performance. Consistent with theory, the ratio of electrode thickness to porosity correlates with the inverse of the critical discharge rate. These results have important implications for processing and design rules for lithium-ion batteries and demonstrate how processing parameters affect conductive electronic and ionic pathways, which ultimately dictate electrode performance.
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Details
- Title
- Linking electrode processing to carbon microstructure and battery performance via elemental mapping
- Creators
- Shihao Pan - Drexel University, Chemical and Biological EngineeringMaureen H Tang - Drexel University, Chemical and Biological EngineeringNicolas J Alvarez (Corresponding Author) - Drexel University, Chemical and Biological Engineering
- Publication Details
- Journal of power sources, v 664, 238908
- Publisher
- Elsevier
- Number of pages
- 8
- Grant note
- National Science Foundation: 1929755
This research was funded by the National Science Foundation (Grant No. 1929755) .
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:001631792900003
- Scopus ID
- 2-s2.0-105030478231
- Other Identifier
- 991022135142204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Physical
- Electrochemistry
- Energy & Fuels
- Materials Science, Multidisciplinary