| 摘要 |
PROBLEM TO BE SOLVED: To provide a sodium - sulfur battery with high durability and high reliability. SOLUTION: This sodium - sulfur battery is constituted by housing sodium in an anode chamber partitioned with a cylindrical solid electrolyte tube with bottom, an insulating ring 1 joined with the outer circumferential surface of an opening end part of the solid electrolyte tube, cathode fittings 2 joined with the top surface of the insulating ring 1, and an anode cover welded to the anode fittings 2. The anode fittings 12 are made of aluminum or an aluminum alloy, have such a shape that an outer flange part 2b is formed midway in a cylindrical part, and are joined with the top surface of the insulating ring 1 on the bottom of the outer flange part 2b, and a ring-shaped ceramic determent body 3 deterring a move repeatedly declining an anode fittings cylinder part 2a caused by thermal expansion and contraction in the operation of the battery is installed on the outer circumferential surface of the anode fittings cylinder part 2a in a non-joining state, and the bottom surface of the ceramic determent body 3 is joined by applying thermal pressure with the top surface of the outer flange part 2b. COPYRIGHT: (C)2003,JPO
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