{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The present invention relates to a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the negative electrode comprises a first protective layer formed on a negative electrode current collector, a second protective layer formed on the first…",
  "path": "/patents/1433270",
  "publishedAt": "2026-02-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "LG CHEMICAL LTD [KR]"
  ],
  "textContent": "The present invention relates to a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the negative electrode comprises a first protective layer formed on a negative electrode current collector, a second protective layer formed on the first protective layer, and a third protective layer formed inside and on one surface of the second protective layer, and lithium ions migrate from the positive electrode by charge to form lithium metal between the negative electrode current collector and the first protective layer in the negative electrode.",
  "title": "LITHIUM SECONDARY BATTERY"
}