Diffusion in energy materials: Governing dynamics from atomistic modelling

David Parfitt, Apostolos Kordatos, P. P. Filippatos, Alexander Chroneos

    Research output: Contribution to journalReview articlepeer-review

    20 Citations (Scopus)

    Abstract

    Understanding diffusion in energy materials is critical to optimising the performance of solid oxide fuel cells (SOFCs) and batteries both of which are of great technological interest as they offer high efficiency for cleaner energy conversion and storage. In the present review, we highlight the insights offered by atomistic modelling of the ionic diffusion mechanisms in SOFCs and batteries and how the growing predictive capability of high-throughput modelling, together with our new ability to control compositions and microstructures, will produce advanced materials that are designed rather than chosen for a given application. The first part of the review focuses on the oxygen diffusion mechanisms in cathode and electrolyte materials for SOFCs and in particular, doped ceria and perovskite-related phases with anisotropic structures. The second part focuses on disordered oxides and two-dimensional materials as these are very promising systems for battery applications.
    Original languageEnglish
    Article number031305
    JournalApplied Physics Reviews
    Volume4
    Issue number3
    DOIs
    Publication statusPublished - 12 Sept 2017

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