| 摘要 |
PROBLEM TO BE SOLVED: To realize high performance, a long lifetime and low cost by using the glass brazing material for a battery seal part. SOLUTION: In this battery, a lower part of anαalumina pellet is formed into a recessed shape, and connected for sealing to an upper end of an alumina pipe 5 by a first bonding material 8 made of the glass brazing material. A positive electrode chamber 3 is sealed by the alumina pipe 5 and the (αalumina pellet. Furthermore, a second bonding material made of the glass brazing material 12 and for sealing a negative electrode chamber 4 is bonded between the top surface and a side surface of the alumina pellet and an outer cylindrical container 1. The glass brazing material has the excellent corrosion resistance in relation to the fused salt of the positive electrode. Bonding structure of each part is simple and the material at a low cost can be used so as to reduce the cost.
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