{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "The present invention relates to a lithium secondary battery having excellent battery performance at high voltage, and relates to a lithium secondary battery including a positive electrode, which includes a positive electrode active material layer including a lithium nickel cobalt manganese-based…",
  "path": "/patents/1419239",
  "publishedAt": "2024-02-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "The present invention relates to a lithium secondary battery having excellent battery performance at high voltage, and relates to a lithium secondary battery including a positive electrode, which includes a positive electrode active material layer including a lithium nickel cobalt manganese-based oxide having an average particle diameter of primary particles of 3 µm or more and a lithium cobalt-based oxide in a weight ratio of 50 : 50 to 80 : 20, a negative electrode, which includes a negative electrode active material layer including a negative electrode active material, and an electrolyte including an organic solvent and a lithium salt, wherein the organic solvent includes propyl propionate and a cyclic carbonate solvent containing ethylene carbonate and propylene carbonate, and the ethylene carbonate is included in an amount of less than 25 wt% in the organic solvent.",
  "title": "LITHIUM SECONDARY BATTERY"
}