Positive electrode active material particle including core containing lithium cobalt oxide and coating layer containing boron and fluorine, and preparation method thereof

  • US 10,868,309 B2
  • Filed: 03/30/2017
  • Issued: 12/15/2020
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
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1. A positive electrode active material particle, comprisinga core including lithium cobalt oxide represented by the following Chemical Formula 1;

  • anda coating layer including boron (B) and fluorine (F), which is coated on the surface of the core;


    Li1+xCo1−

    x
    O2



    (1)wherein −

    0.03≤

    x≤

    0.1, andwherein lithium in the core is in an excessive amount.

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