| 摘要 |
PURPOSE:To eliminate influence of temperature increase to an adjacent battery caused by breakage by arranging a mechanism by which supply of sodium is stopped when a solid electrolyte tube is broken, sodium directly reacts with sulfur, and temperature is increased, and connecting a battery to an adjacent battery by a connector which is directly installed in the battery. CONSTITUTION:The bottom of a sodium reservoir 11 is welded to the upper end of a metal tube 10. An anode pipe 12 for exhausting and sodium filling, which is vacuum-sealed after sodium filling, is welded to the upper part of the sodium reservoir 11. An anode terminal 13 is welded to the outer lower side of the sodium reservoir 11. A filler 17 which is resistant to molten sodium is filled in a space formed by the inside of an inner insertion tube 20 and the outside of the metal tube 10. If a solid electrode tube is broken, direct reaction of sodium with sulfur is eased by the filler 17. When temperature is increased by continued reaction, a copper or aluminum rod 14 inserted inside the metal tube 10 is melted and blocks a passage of sodium to stop the supply of sodium. |
