Sodium secondary battery
US6207321A · kind A · utility
6Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Sep 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sodium secondary battery which assures excellent sealing and can be manufactured in a simple manner is provided. The battery includes a negative electrode chamber defined by the inside of a bottom-closed, hollow cylindrical, solid electrolyte accommodated in an outer case and a positive electrode chamber formed outside the solid electrolyte and containing a porous electrode 4 impregnated with sulfur which serves as a positive electrode active substance. A cover, which closes the opening portion of the outer case, is fastened to the outer case by use of bolts and the interposition of an insulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.