{
  "$type": "site.standard.document",
  "description": "The present invention relates to a lithium secondary battery having improved high-temperature cycle characteristics, and particularly, to a lithium secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes…",
  "path": "/patents/1427382",
  "publishedAt": "2026-06-24T00:00:00.000Z",
  "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 improved high-temperature cycle characteristics, and particularly, to a lithium secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes lithium iron phosphate and lithium nickel cobalt manganese oxide as a positive electrode active material, a loading amount of the positive electrode is in a range of 32 mg/cm2 to 60mg/cm2, and the electrolyte includes a lithium salt; a first organic solvent; a second organic solvent; a first additive; and a second additive, wherein the first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate-based organic solvent, the first additive is an oligomer including a repeating unit derived from a monomer represented by Formula 1 and a repeating unit derived from a monomer represented by Formula 2, and the second additive is an imidazole-based compound.",
  "title": "LITHIUM SECONDARY BATTERY"
}