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:
May. 25, 2010
Filed:
May. 21, 2009
Michael M. Thackeray, Pretoria, ZA;
Rosalind J. Gummow, Pretoria, ZA;
Ernest E Ferg, Wilro Park, ZA;
Michael M. Thackeray, Pretoria, ZA;
Rosalind J. Gummow, Pretoria, ZA;
Ernest E Ferg, Wilro Park, ZA;
Technology Finance Corporation (Proprietary) Limited, Sandton, ZA;
Abstract
An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which as a [B]Xspinel-type framework structure of an A[B]Sspinel wherein A and B are metal cations selected from Li, Ti, V, Mn, Fe and Co, X is oxygen or sulphur, and n− refers to the overall charge of the structural unit [B]Xof the framework structure. The transition metal cation in the fully discharged state has a mean oxidation state greater than +3 for Ti, +3 for V, +3.5 for Mn, +2 for Fe and +2 for Co. The cell includes as a cathode, a lithium metal oxide or sulphide compound. An electrically insulative lithium containing liquid or polymeric electronically conductive electrolyte is provided between the anode and the cathode.