Solid-state hydrogen energy storage costs

What is solid-state hydrogen storage (SSHS)?

Solid-state hydrogen storage (SSHS) has the potential to offer high storage capacity and fast kinetics, but current materials have low hydrogen storage capacity and slow kinetics. LOHCs can store hydrogen in liquid form and release it on demand; however, they require additional energy for hydrogenation and dehydrogenation.

Is solid-state hydrogen storage competitive?

While acknowledging that the cost and performance of solid-state hydrogen storage are not yet fully competitive, the paper highlights its unique advantages of high safety, energy density, and potentially lower costs, showing promise in new energy vehicles and distributed energy fields.

Can solid-state hydrogen storage materials be used for hydrogen energy storage?

Energy drives the development of human civilization, and hydrogen energy is an inevitable choice under the goal of “global energy transition”. As hydrogen technology continues to advance, solid-state hydrogen storage materials have attracted significant attention as an efficient solution for hydrogen energy storage.

How much does a hydrogen storage system cost?

The hydrogen storage system cost set by the U.S. Department of Energy (DoE) is projected to decrease to $8/kWh, with storage capacities of 2.2 kWh/kg and 1.7 kWh/L by 2030 .

When will solid-state hydrogen storage become mainstream?

Although its industrialization is still in its nascent stages, breakthroughs in key technologies like hydrogen storage materials and system integration are expected to propel solid-state hydrogen storage to mainstream status, rivalling gaseous and liquid hydrogen storage within the next 10–15 years.

What are solid hydrogen storage materials?

Many solid hydrogen storage materials such as magnesium-based hydrides, alanates, and/or borohydrides display promising hydrogen densities far superior to the current state of compressed or liquid hydrogen. These solid materials have thermodynamic and kinetic barriers which severely hinder their practical hydrogen uptake and release.