Sodium sulphur cells

Details Sodium sulphur cells Sodium sulphur cells

1977-10-13

1978-12-12

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

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

Active material in molten state

429122, 429163, 429193, 429218, H01M 1039

Patent

active

041296907

ABSTRACT:
In a sodium sulphur cell, the cathode current collector in the sulphur/polysulphide cathodic reactant comprises an impermeable tube, e.g. a carbon or graphite tube which is inert to the cathodic reactant and contains a solid metal core, e.g. an aluminium core, and a deformable electronic conductor, e.g. graphite felt, as a conducting interface between the impermeable tube and the core. In a preferred construction, the current collector is axially located within a cylindrical electrolyte tube, the space between the electrolyte tube and impermeable tube containing the sulphur/polysulphides and a graphite felt. The outer surface of the impermeable tube in this case has grooves or recesses to form a sulphur reservoir.

REFERENCES:
patent: 3883367 (1975-05-01), Chiku et al.
patent: 3939007 (1976-02-01), Sudworth et al.
patent: 3982957 (1976-09-01), Jones et al.

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