A new way to store hydrogen energy

Why is hydrogen storage inconvenient?

However, its inconvenient is the low volumetric energy density. Hydrogen storage is viewed as a core element in development and growth of hydrogen and fuel technologies in portable/stationary power, as well as in transportation.

How can hydrogen be stored?

Hydrogen can be stored physically as either a gas or a liquid. Gas storage typically requires high-pressure tanks (350–700 bar), while liquid storage requires cryogenic temperatures due to hydrogen's low boiling point of −252.8°C at one atmosphere pressure.

What makes an ideal hydrogen storage method?

An ideal hydrogen storage method should exhibit key characteristics, including economic feasibility for large-scale storage, operational safety, high volumetric density, seamless integration with renewable energy sources and existing energy infrastructure, system reliability, and an extended operational lifespan .

What is underground hydrogen storage?

Underground hydrogen storage is the practice of hydrogen storage in caverns, salt domes and depleted oil and gas fields. Large quantities of gaseous hydrogen have been stored in caverns by ICI for many years without any difficulties. The storage of large quantities of liquid hydrogen underground can function as grid energy storage.

How can hydrogen be used as an energy carrier?

Also, hydrogen is expected to be used as an energy carrier that contribute to the global decarbonization in transportation, industrial, and building sectors. Many technologies have been developed to store hydrogen energy. Hydrogen can be stored to be used when needed and thus synchronize generation and consumption.

What are active methods for hydrogen storage?

Active methods for hydrogen storage include physical-based storage systems, such as compressed hydrogen storage at high pressure in specially designed cylinders, liquefied hydrogen storage at cryogenic temperatures, and cryo-compressed methods, which combine both high-pressure and low-temperature techniques.