{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreihrkrptp345jhescxujv66ai5ffvgqgo7oi6nueo3yvviasei6iyq"
    },
    "mimeType": "image/png",
    "size": 88492
  },
  "description": "A lithium-ion secondary battery includes a positive electrode plate and a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode active coating layer located on at least one surface of the negative electrode current…",
  "path": "/patents/1435199",
  "publishedAt": "2026-07-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "ZHUHAI COSMX BATTERY CO., LTD."
  ],
  "textContent": "A lithium-ion secondary battery includes a positive electrode plate and a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode active coating layer located on at least one surface of the negative electrode current collector, the negative electrode active coating layer includes a silicon-carbon material, and a mass content of element Si in the negative electrode active coating layer c ranges from 1.5% to 8.5%; the positive electrode plate includes lithium cobaltate; and an inflection point of a ZCV curve of the lithium-ion secondary battery corresponds to a value Z on an X axis, and Z ranges from 55% to 90%. The lithium-ion secondary battery of the present disclosure has a relatively high energy density and a relatively good low-temperature discharge performance.",
  "title": "LITHIUM-ION SECONDARY BATTERY"
}