The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 1980
Filed:
May. 03, 1978
Applicant:
Inventor:
Peter J Bindin, Runcorn, GB;
Assignee:
Chloride Silent Power Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
296232 ; 228122 ; 429104 ; 429185 ;
Abstract
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 interstate layer of soft metal, e.g. aluminium, which deforms into a groove or grooves in the tapered surfaces to form a hermetic seal.