Title: Sodium-sulphur electric cell

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.

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Inventors: Desplanches, Gerard (Villejust, FR)
Lazennec, Yvon (St Michel sur Orge, FR)
Wicker, Alain (Limours, FR)

Application Number: 675005
Filing Date: 1976-04-08
Publication_date: 1977-09-20
Assignee: Compagnie Generale d'Electricite S.A. (Paris Cedex, FR)
Primary Class(es): 429/104 429/126, 429/129
Other Classes:
US Patent Ref:

3811943	May, 1974	Minck et al.	136/6.
3946751	Mar, 1976	Breiter et al.	136/6.
3960596	Jun, 1976	Mitoff et al.	136/6.

Other Refs:
Primary Examiner: Skapars, Anthony
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak