Sodium sulfur cell
US4220691A · kind A · utility
7Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1978 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Sep 25, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a sodium sulfur cell including a beta-alumina separator between the sodium and sulfur compartments, high surface area gettering means, e.g., beta-alumina or beta"-alumina, for potassium and alkali earth metal ion impurities in the sodium to protect the separator. The gettering means is disposed in the sodium container in the form of particles or a continous porous shell or porous solid plug adjacent to the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.