Sealing of ceramic electrolyte tubes in electrochemical cells
Patent
·
OSTI ID:5775297
In an electrochemical cell such as a sodium sulphur cell using a ceramic electrolyte tube (E.G. Of beta-alumina), the electrolyte tube is secured to a rigid annular element of, for example, alpha -alumina, having substantially the same coefficient of thermal expansion as the electrolyte tube, this annular element being radially thicker than the electrolyte tube and having two oppositely sloping tapered surfaces on its outer face. Metal elements are then forced onto the tapered surfaces with an interstrate layer of soft metal, E.G. Aluminium, which deforms into a groove or grooves in the tapered surfaces to form a hermetic seal.
- Assignee:
- Chloride Silent Power Ltd (United Kingdom)
- Patent Number(s):
- US 4294897
- OSTI ID:
- 5775297
- Resource Relation:
- Patent Priority Date: Priority date 5 May 1977, United Kingdom of Great Britain and Northern Ireland (UK); Other Information: PAT-APPL-133723
- Country of Publication:
- United States
- Language:
- English
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