Study of Specific Energy Characteristics and Testing of a Film Hydrogen Storage Heated by a Resistive Copper Layer

The purpose of the work was to determine the energy characteristics of the developed film hydrogen storage based on magnesium and nickel and test the functionality of resistive heating through a thin-film copper layer. The specific energy characteristics of film hydrogen storage (with 40 n. l of stored hydrogen) depending on the winding scheme and the thickness of the resistive copper layer were calculated. The specific energy of the storage is in the range of 450–479 W·h/kg, volumetric specific energy is in the range of 626–651 W·h/l for various winding schemes (from 1 to 16 tapes with a hydride-forming coating per tape with a resistive layer) and thicknesses of the resistive layer 0.5–2 microns. Thermal calculations of the hydrogen carrier and the model of the film hydrogen storage were carried out. Long samples with a resistive copper layer are deposited using magnetron sputtering. Tests were carried out on a wound sample with a resistive layer, which showed an increased electrical resistivity relative to the bulk material.