Sodium-sulfur battery and method of making a double carbon mat-c

Details Sodium-sulfur battery and method of making a double carbon mat-c Sodium-sulfur battery and method of making a double carbon mat-c

1979-02-01

1980-02-12

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

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

Active material in molten state

264104, 264255, 264257, H01M 436

Patent

active

041884639

ABSTRACT:
An improved sodium-sulfur cell having a sulfur electrode for a physically-large battery cell comprises in its pre-emplaced condition at temperatures below operating temperature at least one preformed solid composite structure defining a plug conforming to the interior shape of an electrolyte containment structure. The plug segments are constructed of fibrous electrically conductive material in a compressed elastic condition having a relatively thin layer of electrically resistive material along the face of the segment which will confront the electrolyte. The conductive material and the resistive material are permeated with a binder of molten sulfur which has been solidified. The sulfur electrode is adapted to be inserted within a battery cell container and subsequently melted so that the structure can expand and compress against the inner walls of the containment structure.

REFERENCES:
patent: 3926674 (1975-12-01), Jonville
patent: 4053689 (1977-10-01), Breiter
patent: 4070527 (1978-01-01), King et al.
patent: 4140841 (1979-02-01), Breiter

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