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Lithium metal oxide electrodes for lithium cells and batteries

United States Patent

November 14, 2006
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2M'O.sub.3 in which 0<x<1, and where M is more than one ion with an average trivalent oxidation state and with at least one ion being Ni, and where M' is one or more ions with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.
Thackeray; Michael M. (Naperville, IL), Johnson; Christopher S. (Naperville, IL), Amine; Khalil (Downers Grove, IL), Kim; Jaekook (Naperville, IL)
UChicago Argonne LLC (Chicago, IL)
10/ 688,004
October 17, 2003
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy (DOE) and The University of Chicago representing Argonne National Laboratory.