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    Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

    Dissertations in Series (Dissertationen in Schriftenreihe)

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    Author(s)
    Zhang, Tao
    Collection
    AG Universitätsverlage
    Language
    English
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    Abstract
    Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.
    URI
    https://library.oapen.org/handle/20.500.12657/50992
    Keywords
    Phasenfeldansatz; Phasentrennung; Nichtlokalität; Endliche Verformungselastizität; Sekundärbatterien; Phase-field approach; Phase segregation; Nonlocality; Finite deformation elasticity; Secondary batteries
    DOI
    10.5445/KSP/1000100537
    ISBN
    9783731510024, 9783731510024
    Publisher
    KIT Scientific Publishing
    Publisher website
    https://www.ksp.kit.edu/index.php?link=shop&sort=all
    Publication date and place
    Karlsruhe, 2021
    Imprint
    KIT Scientific Publishing
    Series
    Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie, 87
    Classification
    Mechanical engineering and materials
    Pages
    224
    Rights
    http://creativecommons.org/licenses/by-sa/4.0
    • Imported or submitted locally

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    License

    • If not noted otherwise all contents are available under Attribution 4.0 International (CC BY 4.0)

    Credits

    • logo EU
    • This project received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 683680, 810640, 871069 and 964352.

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