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Diffusion in energy materials: Governing dynamics from atomistic modelling
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DOI：10.1063/1.5001276.png)
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Abstract
En 中文
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. Published by AIP Publishing.
Keywords:
OXYGEN-ION MIGRATION
GENERALIZED GRADIENT APPROXIMATION
COMPUTATIONAL MATERIALS DESIGN
BORN REPULSIVE PARAMETERS
OXIDE-ION
AB-INITIO
DOPED CERIA
ELECTRICAL-PROPERTIES
TRANSPORT-PROPERTIES
NEUTRON-DIFFRACTION
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