Sodium sulphur cells
US3939007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1974 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Jan 16, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sodium sulphur cell comprising inner and outer tubes the inner tube constituting the solid electrolyte for the cell. The interior of the inner tube defines the anode compartment of the cell and the space between the inner and outer tubes defines the cathode compartment of the cell. The inner tube contains metal wool and/or a plate spaced from the inner surface of the inner tube to cause molten sodium to be distributed over the inner surface of the inner tube by capillary action. The inner and outer tubular members are closed at one end by a compression seal assembly. The seal assembly comprises a flange on the inner tubular member engaging the end of the outer tubular member to close the end of the outer tubular member, a closure member engaging the flange to close the inner tubular member, and a clamping member fitting over the closure member and being held in position by the outer tubular member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.