STORAGE TANK

| Main | Electrolyzer | Storage Tank | Fuel Cell |
| Stationary Applications | Mobile Application | Portable Application |

Hydrogen can be stored in various forms, including as a gas, as a cryogenic liquid or as a metal hydride.

1. Pressure Storage
   
   Hydrogen is stored as a highly compressed gas at ambient temperature in pressure tanks.
   
   
   
2. Cryogenic Storage
   
   Hydrogen is stored in liquid form at temperatures below -253º C.
   
   
   
3. Metal Hydride Storage
   
   Hydrogen is stored as a metal hydride in the crystal lattice of certain metals or metallic alloys. The hydrogen gas is fed into the storage tank under slight overpressure and chemically bonds to the metal in question. The resulting compounds are called metal hydrides. The reaction is reversible, i.e. the original metal and the hydrogen gas can be regained by reversing the reaction.
   
   
   
4. Carbon Nanofiber Storage
   
   This involves storing hydrogen in carbon nanofiber structures. One advantage of this storage medium is its low weight. However, this technology is still in the basic research stage.