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 garnered significant attention as an efficient solution for hydrogen energy storage.
A complete solid-state hydrogen storage and supply system mainly consists of the following parts (Figure 4) : (1) Hydrogen storage device, including a hydrogen storage container and hydrogen storage material.
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.
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 .
In October of the same year, five ministries and commissions, including the National Development and Reform Commission, jointly issued the “Guiding Opinions on Accelerating the Development of Energy Storage”, listing hydrogen storage as an emerging energy storage technology that needs to be focused on .
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.