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Title: Application of morphological synthesis for understanding electrode microstructure evolution as a function of applied charge/discharge cycles

Morphological analysis and synthesis operations were employed for analysis of electrode microstructure transformations and evolution accompanying the application of charge/discharge cycles to electrochemical storage systems (batteries). Using state-of-the-art morphological algorithms, it was possible to predict microstructure evolution in porous Si electrodes for Li-ion batteries with sufficient accuracy. Algorithms for image analyses (segmentation, feature extraction, and 3D-reconstructions using 2D-images) were also developed. Altogether, these techniques could be considered supplementary to phase-field mesoscopic approach to microstructure evolution that is based upon clear and definitive changes in the appearance of microstructure. However, unlike in phase-field, the governing equations for morphological approach are geometry-, not physics-based. Similar non-physics based approach to understanding different phenomena was attempted with the introduction of cellular automata. It is anticipated that morphological synthesis and analysis will represent a useful supplementary tool to phase-field and will render assistance to unraveling the underlying microstructure-property relationships. The paper contains data on electrochemical characterization of different electrode materials that was conducted in parallel to morphological study.
 [1] ;  [1] ;  [2]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Moscow State Univ., Moscow (Russian Federation)
Publication Date:
Report Number(s):
Journal ID: ISSN 0947-8396; PII: 401
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Applied Physics. A, Materials Science and Processing
Additional Journal Information:
Journal Volume: 122; Journal Issue: 10; Journal ID: ISSN 0947-8396
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
25 ENERGY STORAGE; Battery Electrode Material Degradation; Morphological Analysis; Morphological Synthesis
OSTI Identifier: