High-pressure tank

A high-pressure tank comprising at least:

• a liner adapted to suppress permeation of gas;
• a valve device adapted to allow an inside of the liner and an outside of the tank to communicate with each other and block communication therebetween;
• an inner container disposed within the liner such that a gap is formed between the inner container and an inner periphery of the liner;
• and
• a through-hole formed in the inner container,
• wherein:
• the valve device includes
• a first communication channel through which the gap formed between the liner and the inner container communicates with the outside of the tank, and through which gas is supplied to the gap from the outside of the tank, and
• a second communication channel through which an inside of the inner container communicates with the outside of the tank, and through which gas is discharged to the outside of the tank from the inside of the inner container,
• wherein the through-hole formed in the inner container is formed in a region lower than a central plane of the inner container in a vertical direction,
• the first communication channel of the valve device connects with a pipe extending in the gap formed between the liner and the inner container,
• the pipe has a plurality of holes therein, and
• the pipe is located at a top in a vertical direction of the liner.