| 摘要 |
PROBLEM TO BE SOLVED: To provide a sodium sulfur battery module by which the degradation of a joining part and the corrosive degradation of a positive electrode vessel are hardly caused and high output operation can be performed. SOLUTION: In an Na sulfur battery module by connecting plural Na sulfur batteries containing a negative electrode vessel 2 to house Na, a positive electrode vessel 5 to house a positive electrode mold composed of sulfur or an Na polysulfide and carbon fiber, a solid electrolyte tube 1 to separate a negative electrode and a positive electrode from each other and an insulating member 7 which is connected to the solid electrolyte tube 1 and is joined to the negative electrode vessel 2 and the positive electrode vessel 5, the positive electrode vessel 5 contains a joining body of a cylinder part 51 and a flange part 52, and in a material of the cylinder part 51, a corrosive layer is arranged on a surface of Al or Al allay, and the cylinder part 51 is connected to Al or Al alloy-made bus bar, and in the flange part 52, the flange part 52 and the insulating member 7 are joined together by using stainless steel. |
