i mean any example for "idea to application" in the case of solid state hydrogen storage systems like liquid hydrogen and compressed gas. is there any patent or any research journals regarding that?
James Dewar was the first who obtained the solid hydrogen in 1899. Solid hydrogen has a very low density of 0.086 g/L (compared with 0.050g/L for the liquid form). Thus, you don't have any reasonable improvement converting hydrogen from liquid to solid state.