Hydrogen in liquid state leaks out of any container that you put it in. 70kg lead bottle stores only 1L of hydrogen and all of it evaporates naturally in 1-2 months through the metal. So no, storage of liquid hydrogen is a terrible idea.
It does diffuse through everything, but there are several research projects in that direction. It is the smallest element and it helps if that bottle is solid, but I still see potential.
