VERFAHREN ZUR ABDICHTUNG EINES ENDES EINER NATRIUM-SCHWEFEL-ZELLE UND MITTELS DIESEM VERFAHREN HERGESTELLTE NATRIUM-SCHWEFEL-ZELLE.

摘要

PCT No. PCT/GB90/01136 Sec. 371 Date Jan. 15, 1992 Sec. 102(e) Date Jan. 15, 1992 PCT Filed Jul. 24, 1990 PCT Pub. No. WO91/01571 PCT Pub. Date Feb. 7, 1991.A sodium/sulphur cell includes a case and a closure member. Each of the case and the closure member is formed of a composite material consisting of a substrate and a deformable metal layer mechanically fixed to the substrate. The substrate is formed of a material which is harder than the deformable metal. An outwardly extending annular flange is formed at the open end of the case. The closure member is secured to the annular flange by a solid phase bond thereby to close the case.