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Research & Development With the ability to store and transport hydrogen, H2APEX has achieved a milestone in the green energy transition. The company continues to invest numerous resources to further expand the H2 application areas and availability.

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Safe hydrogen storage with salt

Hydrogen storage technologies are the key to safely transporting green hydrogen and making it accessible anywhere in the world. This is why H2APEX has been conducting intensive research in the past and has developed a chemical storage system for hydrogen. This paves the way for a sustainable energy supply worldwide.

The carrier material salt comes directly from the environment, is available in large quantities and is very inexpensive. This results in unbeatable efficiency. The charging and discharging cycle is completely CO²-neutral

One liter of hydrogen bound in salt can

Charge an average smartphone over 14 times
Offer 2.67 hours of cinema feeling on your TV
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How does hydrogen storage in salt work?

The process of hydrogen storage in salt works through the reversible reaction of the chemical compounds SALT- and SALT+. By adding hydrogen and heat, SALT- is converted into SALT+, whereby the hydrogen is stored in the salt. During dehydrogenation, SALT+ is heated, which releases the stored hydrogen again.

Flexible adaptability of the storage medium

The aggregate state of the storage medium can be customized.

Dissolved in water (brine)

In this form, the stored hydrogen is easy to pump and has a high process efficiency.

Crystalline salt

When handled as bulk material, the energy density in the carrier medium is very high with good process efficiency.

Safe hydrogen transportation: no risk to the environment

Around 68% of accidents within the hydrogen infrastructure occur during storage. Hydrogen leaks then often lead to fires and/or explosions! If salt is used as a carrier medium, the use of chemicals can be completely dispensed with. In the event of a leak, there is virtually no damage to people or the environment

High transportability of the hydrogen bound in salt

The hydrogen can be transported in liquid form in tanks or as a solid carrier medium in containers – for example on a container ship. These transport containers can then be set up anywhere as local energy centers and guarantee a seamless energy supply on site.

Decentralization of the energy supply

We see decentralized hydrogen hubs as key players in the energy transition. These hubs store surplus electricity and thus seamlessly compensate for the natural fluctuations of renewable energy sources. They act as local energy centers that ensure a constant, sustainable energy supply. They can be easily integrated into the existing infrastructure.