H3MOV

Type III compressed hydrogen tanks for collective mobility using high-cadence processes.

H3MOV develops high-cadence production processes to provide innovative solutions for compressed hydrogen storage, to address the high cost and low efficiency of current manufacturing methods.

The project focuses on type III compressed hydrogen tanks, which, although not the lightest for a given volume, have several advantages over type IV tanks, such as lower hydrogen permeability and simpler sealing systems for the tank nozzles. Due to their slightly higher weight, these tanks are currently used in collective mobility vehicles, such as buses and trains.

H3MOV focuses on all the necessary elements to develop a high-pressure tank for hydrogen storage:

• The analysis of materials and processes that enable the production of the inner liner at a high production cadence without compromising the requirements of such components (barrier effect and hydrogen compatibility).
• The selection of manufacturing processes for the outer layer that allows cycle time reduction, enabling the production of tanks at a lower cost while ensuring that it withstands the stresses generated by the internal hydrogen pressure.
• The study of coatings and/or surface treatments to be applied to the inner metallic coating to achieve good adhesion to the outer coating and correct transmission of loads during the filling and pumping cycles of the tank.

The H3MOV consortium is led by the company Industrias Puigjaner (DENN) and counts with the technical coordination from Eurecat through its Product Innovation and Multiphysics Simulation Unit. On the other hand, the Composite Materials Unit produces the composite material coating of the prototype tank, while the Metallic and Ceramic Materials Unit develops equipment and a technique to determine the hydrogen permeability of the materials.