{
  "$type": "site.standard.document",
  "description": "The present invention provides a method for preparing a positive electrode active material for a secondary battery, the method including preparing a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the content of the nickel (Ni) in the total…",
  "path": "/patents/1421020",
  "publishedAt": "2022-07-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B35/00",
    "LG CHEMICAL LTD [KR]"
  ],
  "textContent": "The present invention provides a method for preparing a positive electrode active material for a secondary battery, the method including preparing a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the content of the nickel (Ni) in the total content of the transition metal is 60 mol% or greater, and subjecting the lithium composite transition metal oxide, MgF2 as a fluorine (F) coating source, and a boron (B) coating source to dry mixing and heat treatment to form a coating portion on the particle surface of the lithium composite transition metal oxide. In addition, the positive electrode active material prepared as described above includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a coating portion formed on the particle surface of the lithium composite transition metal oxide, wherein the lithium composite transition metal oxide has the nickel (Ni) in the content of 60 mol% or greater in the total content of the transition metal, and the coating portion includes fluorine (F) and boron (B).",
  "title": "POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING SAME"
}