Chemistry: electrical current producing apparatus – product – and – Fluid active material or two-fluid electrolyte combination... – Active material in molten state
Patent
1992-12-11
1994-06-14
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Fluid active material or two-fluid electrolyte combination...
Active material in molten state
429193, 429185, H01M 1039
Patent
active
053209150
ABSTRACT:
An electrochemical storage cell (20) includes a ceramic housing frame (22) with a flat plate solid ceramic electrolyte (32) bonded to a internal shoulder (26) of the housing frame (22) with a glassy seal (33). A metallic weld ring (34) is bonded to each end of the housing frame (22). Each weld ring (34) has a welding flange (36) disposed parallel to a respective end of the housing frame (22) and also has a bonding flange (40). The bonding flange (40) lies parallel and adjacent to an internal surface (24) of the housing frame (22) if the coefficient of thermal expansion of the weld ring (34) is less than that of the housing frame (22), and parallel and adjacent to an external surface (28) of the housing frame (22) if the coefficient of thermal expansion of the weld ring (34) is greater than that of the housing frame (22). A glassy seal (42) is formed between the bonding flange (40) of each weld ring (34) and the respective adjacent surface (24 or 28) of the housing frame (22). The glassy seals (33 and 42) are formed by heating an assembly of the components to the glass transition temperature of the glassy seal material to effect bonding and then slowly cooling to minimize thermal stresses.
REFERENCES:
patent: 3765945 (1973-10-01), Sudworth
patent: 3783024 (1974-01-01), Gibson et al.
patent: 4894299 (1990-01-01), Morse
patent: 5053294 (1991-10-01), Sernka et al.
Ali Mir A.
Saito Clark A.
Denson-Low W. K.
Gudmestad T.
Hughes Aircraft Company
Leitereg E. E.
Skapars Anthony
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