Sodium-sulphur electric cell

Details Sodium-sulphur electric cell Sodium-sulphur electric cell

1976-04-08

1977-09-20

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

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

Active material in molten state

429126, 429129, H01M 1039

Patent

active

040498840

ABSTRACT:
The invention relates to a new structure for a sodium-sulphur cell. Such a cell comprises a cathode tank containing sulphur, an electrolyte tube closed, at its lower end, containing sodium and immersed in sulphur, a sodium anode tank, a ceramic support holding the said tank and the tube, the cathode tank being fitted with graphite felt washers ensuring cathode collection of the current, the outside face of the electrolyte tube being, except for the lower end, lined with a porous insulating coating, a graphite felt part being, moreover, inserted between the said lower end of the electrolyte tube and the bottom of the cathode tank. The invention is implemented in sodium sulphur cell batteries for electric vehicles.

REFERENCES:
patent: 3811943 (1974-05-01), Minck et al.
patent: 3946751 (1976-03-01), Breiter et al.
patent: 3960596 (1976-06-01), Mitoff et al.

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