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

  • US 20150228971A1
  • Filed: 12/24/2014
  • Published: 08/13/2015
  • Est. Priority Date: 02/07/2014
  • Status: Active Grant
First Claim
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1. A positive active material comprising:

  • a positive active material core particle for intercalating and deintercalating lithium ions; and

    a coating layer at least partially surrounding the positive active material core particle and comprising a ceramic composite represented by Formula 1;


    Li7+aLa3−

    b
    Zr2−

    c
    MdO12+e



    Formula 1wherein M comprises at least one selected from aluminum (Al), titanium (Ti), scandium (Sc), vanadium (V), yttrium (Y), niobium (Nb), hafnium (Hf), tantalum (Ta), silicon (Si), gallium (Ga), and germanium (Ge), and−

    1≦

    a≦

    1, 0≦

    b≦

    2, 0≦

    c≦

    2, 0<

    d≦

    2, and 0≦

    e≦

    1.

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