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:
Oct. 26, 1999
Filed:
Feb. 28, 1997
Johan Coetzer, Pretoria, ZA;
Isak L Vlok, Centurion, ZA;
Abstract
The invention provides a high temperature rechargeable electrochemical power storage cell a method of operating such cell, a cathode for the cell and a method of making the cell. A solid electrolyte sodium ion conductor separates a cell housing into anode and cathode compartments respectively containing molten sodium anode material and a nickel-containing active anode material. The active cathode material is dispersed in a porous matrix which is electronically conductive and has a sodium aluminium halide molten salt electrolyte, containing sodium and chlorine ions, impregnated therein. The cathode compartment contains an additional metal selected from iron, cobalt, antimony and mixtures thereof. The molten salt electrolyte has, dissolved therein, sodium iodide, which forms 1-20% by mass of the sodium halide in the cathode compartment.