Patent · US Expired

Cell casing with a hermetic mechanical seal and a hermetically sealed sodium-sulfur cell

US3946751A · kind A · utility

23Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 18, 1975
Grant dateMar 30, 1976
Priority date
Expiry dateFeb 18, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P70/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A cell casing and a hermetically sealed sodium-sulfur cell are disclosed wherein the cell casing includes a hermetic mechanical seal joining two opposed outer metallic casing portions to a ceramic ring supporting an inner casing of a solid sodium ion-conductive material. A hermetically sealed sodium-sulfur cell has the above type of casing with a sodium negative electrode in the inner casing and a positive electrode of sulfur in conductive material in an outer casing portion surrounding the inner casing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.