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:
Dec. 04, 1990
Filed:
Feb. 21, 1990
Johan Coetzer, Pretoria, ZA;
Lilliwyte Societe Anonyme, Luxembourg, LU;
Abstract
An electrochemical cell 10 comprises, in its charged state, an anode 14 comprising, as an active anode substance, (i) a metal halide T(1).sup.m+ X.sub.m.sup.- where T(1) is a metal selected from the group consisting in the first series of transition elements, the second series of transition elements, tungsten, aluminium, silicon, tin and lead, m+ is the valency of the metal T(1), and X is a halogen. The cell also comprises a cathode 18 comprising, as an active cathode substance, a metal halide T(2).sup.n+ X.sub.n.sup.-, where T(2) is a metal selected from the group consisting in the first series of transition elements, the second series of transition elements, tungsten, aluminium, silicon, tin and lead, n+ is the valency of the metal T(2), and X is a halogen. The cell further comprises a liquid electrolyte 22, E, containing halogen ions X.sup.-, when the active anode and cathode substances are T(1).sup.m+ X.sub.m.sup.- and T(2).sup.n+ X.sub.n.sup.- respectively, as well as at least one compatible cation, with the active anode and cathode substances being substantially insoluble in the electrolyte at the operating temperature of the cell, at all states of charge and discharge.