Development and Processing of Advanced Metal Hydride Composites with Specific Microstructure Properties for mobile hydrogen storage applications - H2MobilHydride

Project summary

Metal hydrides have recently emerged as promising materials for local hydrogen storage. The innovation goals of this project are to provide a novel metal hydride composite offering hydrogenation capacity close to Mg alloys, faster kinetics, higher dehydrogenation capacity, and limited material degradation per cycle. The material will be based on the concept of high entropy alloy with the addition of catalysts and will be produced not only in the conventional powder form, but also as thin sheets and bulk materials. A hydrogen storage capacity of (H/M)>1.8, a mass fraction of stored hydrogen >2.5, a volume fraction of stored hydrogen >0.15kg/l and an absorption rate to complete saturation < 2min are aimed. The project will improve the fundamental understanding of the mechanisms governing the hydrogenation and high-temperature behavior of HEA-based composites and also provide a functional model of a new composite material for hydrogen storage, followed by a technology for its fabrication.