Metal working – Method of mechanical manufacture – Electrical device making
Patent
1980-09-05
1983-03-01
Husar, Francis S.
Metal working
Method of mechanical manufacture
Electrical device making
296232, H01M 1039, H01M 208, H01M 1038
Patent
active
043751270
ABSTRACT:
A method of initially assembling and then subsequently hermetically sealing a container portion of an alkali metal battery to a ceramic portion of such a battery is disclosed. Sealing surfaces are formed respectively on a container portion and a ceramic portion of an alkali metal battery. These sealing surfaces are brought into juxtaposition and a material is interposed therebetween. This interposed material is one which will diffuse into sealing relationship with both the container portion and the ceramic portion of the alkali metal battery at operational temperatures of such a battery. A pressure is applied between these sealing surfaces to cause the interposed material to be brought into intimate physical contact with such juxtaposed surfaces. A temporary sealing material which will provide a seal against a flow of alkali metal battery reactants therethrough at room temperatures and is applied over the juxtaposed sealing surfaces and material interposed therebetween. The entire assembly is heated to an operational temperature so that the interposed material diffuses into the container portion and the ceramic portion to form a hermetic seal therebetween. The pressure applied to the juxtaposed sealing surfaces is maintained in order to ensure the continuation of the hermetic seal.
REFERENCES:
patent: 1711739 (1929-05-01), Marsal
patent: 3756856 (1973-09-01), Tennenhouse
patent: 4037027 (1977-07-01), Desplanches et al.
patent: 4170694 (1979-10-01), Chase et al.
Bell Jerry E.
Chase Gordon G.
Elkins Perry E.
Harlow Richard A.
Ford Motor Company
Husar Francis S.
Johnson Olin B.
Johnson William E.
Scherer Jonathan L.
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