Using special vacuum technology from rare-earth and transition metals can be melted alloys, which are able to absorb hydrogen from the gas phase. These alloys, at room temperature and under certain hydrogen pressure, are able to absorb extremely large quantities of hydrogen by forming solid metal hydride. The chemical reaction of hydride formation is accompanied with release of heat into environment. The hydrogen absorption process can be reversed if the hydrogen pressure is lowered below some certain value. The gas desorption process will be accompanied with heat absorption from environment.

These hydrogen-absorbing metals are called "Hydrogen Storage Alloys". Like the sponge absorbs water, the hydrogen storage alloy can absorb hydrogen with extremely high efficiency.

The hydrogen storage alloys, based on rare-earth metals, Ti, Zr, Fe, et. al, are extensively studied. However, only rare-earth based so called AB5-type and transition metal based AB2-type alloys has reached the stage of mass production and commercialization. However, as a reversible gas storage material, only AB5-type alloys can operate at moderate temperatures (from -20up to +60), while the AB2-type ones required additional heating (up to 150).

At present AB5-type alloys are widely used also as a negative material in Ni-MH batteries.

The AB5-type alloys, developed by H Bank in 2000, due to their unique composition can absorb hydrogen as high as 1.65wt%, while same type usual commercial alloys have reversible capacities not higher than 1.5wt.%.

In 2004, we devoted in putting the hydrogen storage alloy idea into the market.
We have developed a big variety of hydrogen storage tanks and containers with amount of stored hydrogen from 10 up to 2000 litters. H Bank is the first and only company, who has developed flat shape hydrogen storage container, an crucial issue for application with Fuel Cells in notebooks and other portable devices. All our rights on these products are protected with corresponding patents.

We will devote every effort to replace dangerous high-pressure hydrogen cylinders with safe metal-hydride based storages.