Hydrogen energy is a candidate of the promising solutions for the global environmental issues. Hydrogen production, transportation and storage are key technologies to establish hydrogen supply chain system. Liquid hydrogen would be the most effectual measure for transporting and storing hydrogen. Large scale storage tank will be required for storage of liquid hydrogen from abroad. However, there is no experience to build this kind of storage tank in the world and some difficult issues are existing for construction.
This paper describes the two measure issues for construction one is a safety for materials and the other is a thermal insulating property, and action assignment to address these issues.
