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Ni-based lithium transition metal oxide

  • US 20060233696A1
  • Filed: 04/13/2005
  • Published: 10/19/2006
  • Est. Priority Date: 04/13/2005
  • Status: Active Grant
First Claim
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1. A powderous lithium transition metal oxide with the composition as represented by Formula 1 below, with practically being free of Li2CO3 impurity, and prepared by solid state reaction in air from a mixed transition metal precursor and Li2CO3:


  • LixMyO2



    (1) wherein M=M′

    l-kAk, where M′

    =Nil-a-b(Ni1/2Mn1/2)aCob on condition of 0.65≦

    a+b≦

    0.85 and 0.1≦

    b≦

    0.4;

    A is a dopant;

    0≦

    k<

    0.05; and

    x+y=2 on condition of 0.95≦

    x≦

    1.05.

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