Electric cells

Details Electric cells Electric cells

1975-11-17

1977-06-14

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

Active material in molten state

H01M 436

Patent

active

040298582

ABSTRACT:
In an electric cell having a solid electrolyte and employing sodium as the iquid anode and sulphur as the liquid cathode, the liquid anode is contained in two compartments separated by a corrosion resistant barrier. Liquid anode is arranged to flow between the compartments through a flow restrictor which permits a rate of flow sufficient to meet the normal charge and discharge requirements of the cell but limits higher rates of flow.
One of the compartments has a very limited capacity for liquid sodium and is disposed about one side of the solid electrolyte to define a wicking space to constrain liquid sodium to flow over the solid electrolyte. The other compartment provides a reservoir for containing the bulk of the liquid sodium.
In the event of damage to the solid electrolyte, only a very limited amount of liquid sodium is readily available to mix and react with the liquid sulphur.

REFERENCES:
patent: 3413150 (1968-11-01), Kummer et al.
patent: 3468709 (1969-09-01), Kummer
patent: 3533848 (1970-10-01), Winn
patent: 3749603 (1973-07-01), Stringham et al.
patent: 3811943 (1974-05-01), Minck et al.
patent: 3922176 (1975-11-01), Robinson et al.

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