| 摘要 |
PROBLEM TO BE SOLVED: To provide a sodium-sulfur battery made by assembling a plurality of unit cells, in which leakage to the outside of the unit cell housing container is prevented even if the corrosion substance leaks from the unit cell and damage of corrosion to the outside is prevented. SOLUTION: As a container for housing the unit cells of the sodium-sulfur battery, a container made of a ferrite stainless steel which is superior in corrosion resistance against the corroding substance and has 16 wt.% or more of chromium content is used. A lid is arranged at the upper opening of the container, and the opening of the container is closed by the lid. COPYRIGHT: (C)2003,JPO
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