Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ernest E Ferg0
Michael M. Thackeray0
Rosalind J. Gummow0
Date of Patent
May 25, 2010
0Patent Application Number
124703460
Date Filed
May 21, 2009
0Patent Primary Examiner
Patent abstract
An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which as a [B2]X4n− spinel-type framework structure of an A[B2]S4 spinel 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 [B2]X4 of 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.
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