Beta alumina solid electrolyte material and its manufacture and electrochemical cells or other energy conversion devices containing such material
US4348468A · kind A · utility
8Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1980 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Dec 17, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a sodium sulphur cell or other electrochemical cell or energy conversion device in which beta-alumina is used as a solid electrolyte in contact with liquid sodium, improved wetting of the electrolyte by the sodium is obtained by coating the electrolyte, on the surface in contact with the sodium, with a metal, such as lead or bismuth, which will form an alloy with sodium. Conveniently the electrolyte is coated with an aqueous solution of lead acetate, dried and the lead acetate decomposed by heating to leave a lead coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.