Heat generation cell, heat generation device, and heat utilization system

A heat generating device, comprising:

• a plurality of heat generating cells, each of the plurality of heat generating cells comprising:
• a support having tubular shape;
• and
• a multilayer film formed on an inner peripheral surface of the support for generating heat by occlusion and discharge of hydrogen;
• a sealed container;
• a plurality of separators dividing an inside of the sealed container into a first space, a second space, and a third space in an axial direction of the sealed container, the first space and the second space being located at both ends in the axial direction in the sealed container;
• and
• a heater for heating each of the plurality of heat generating cells, wherein
• the plurality of heat generating cells penetrate through the plurality of separators, and
• both ends of each of the plurality of heat generating cells in an axial direction are respectively opened to the first space and the second space such that hydrogen passes through an inside of each of the plurality of heat generating cells from the first space to the second space.