Hydrexia’s innovative technology is based on an alloy which negates the need for expensive, energy intensive and difficult-to-scale, traditional ball milling.
The alloys are produced using conventional casting equipment, and are therefore expected to have significant economic benefits over hydrogen storage materials produced by high energy processes. This underpins an overall system design philosophy to enable the lowest delivered hydrogen cost to the customer.
The hydrogen storage properties of magnesium have been known for several decades, however the kinetics of the reactions for hydriding (absorbing hydrogen) and dehydriding (releasing hydrogen) are slow.
Hydrexia’s innovative technology is produced by conventional casting processes and milled into flakes that are tens of microns thick, orders of magnitude larger than ball milled nanoparticles. These flakes are stable in air, removing the risks associated with handling pyrophoric nanomaterials.
Hydrexia’s material has fast and controllable kinetics and reduced activation time for the first hydriding reaction.
The short activation time provides an additional reduction in production time and cost. During the activation process, the flakes break down into smaller particles.