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Lithium metal oxide electrodes for lithium cells and batteries

United States Patent

January 20, 2004
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.2 M'O.sub.3 in which 0<x<1, and where M is one or more ion with an average trivalent oxidation state and with at least one ion being Mn or Ni, and where M' is one or more ion 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)
The University of Chicago (Chicago, IL)
09/ 989,844
November 21, 2001
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.