The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1977
Filed:
Apr. 08, 1976
Gerard Desplanches, Villejust, FR;
Yvon Lazennec, St Michel sur Orge, FR;
Alain Wicker, Limours, FR;
Compagnie Generale d'Electricite S.A., Paris Cedex, FR;
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.