High-entropy materials mix five or more elements in the same crystal positions. This atomic “cocktail” can produce unusual properties, such as high stability, corrosion resistance and tunable electronic behaviour – valuable for devices that must last under harsh conditions, like batteries, fuel cells and hydrogen storage.
This roadmap, led by Albert Tarancón (IREC) and Miriam Botros (KIT), brings together experts to review the state of the art and the open challenges. Because the number of possible compositions is enormous, it also discusses how AI-driven screening, modelling and automated experiments can speed up discovery.
Read the paper: A. Tarancón, M. Botros et al., “2026 Roadmap on compositionally complex and high entropy materials for energy applications”, Journal of Physics: Energy 8, 031501 (2026). Open access. https://doi.org/10.1088/2515-7655/ae57d9
Figure: Fig. 1a–b from Tarancón, Botros et al., J. Phys. Energy 8, 031501 (2026), CC BY 4.0.
