| 摘要 |
[PROBLEMS] To suppress temperature increase of a power supply body due to external heat. [MEANS FOR SOLVING PROBLEMS] A power supply device (2) stores a liquid medium in a manner of arranging a gas layer, in a first case (30) wherein power supply bodies (22, 23, 24) are stored. When the liquid medium is heated over the vaporizing temperature by external heat applied to the power supply bodies, the gas layer volume is increased by vaporization of the liquid medium, and heat conduction of the external heat to the power supply bodies is reduced. Thus, since heat conduction of the external heat to the power supply bodies is reduced, temperature increase of the power supply bodies due to the external heat is suppressed. |
