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POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM BATTERY EMPLOYING THE POSITIVE ELECTRODE ACTIVE MATERIAL

  • US 20120156565A1
  • Filed: 09/23/2011
  • Published: 06/21/2012
  • Est. Priority Date: 12/20/2010
  • Status: Active Grant
First Claim
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1. A positive electrode active material comprising:

  • a core comprising a lithium nickel-based complex oxide; and

    a complex coating layer formed on a surface of the core and comprising titanium dioxide (TiO2) and lithium titanium oxide (LiTixOy),wherein 1≦

    x≦

    2 and 2.5≦

    y≦

    3, andan amount of lithium is higher on the surface of the core than a total average composition of the core.

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