{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreidzhoquqy5vugppos4gadeb6mdg25iej3dibgiqy367vxx57x5q5y"
    },
    "mimeType": "image/png",
    "size": 115771
  },
  "description": "The present application discloses a secondary battery, an apparatus including the secondary battery, artificial graphite and a preparation method thereof. The secondary battery includes a negative electrode plate, the negative electrode plate including a negative active material, wherein the…",
  "path": "/patents/1418211",
  "publishedAt": "2024-05-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B32/205",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present application discloses a secondary battery, an apparatus including the secondary battery, artificial graphite and a preparation method thereof. The secondary battery includes a negative electrode plate, the negative electrode plate including a negative active material, wherein the negative active material comprises an artificial graphite having a volume average particle size Dv50 of 12µm to 22µm, and the artificial graphite satisfies: 12≤Dv50×SSA≤25, in which SSA is the specific surface area of the artificial graphite, in m2/g; the negative electrode plate has a compaction density of 1.6g/cm3 to 1.75g/cm3, and the negative electrode plate has an OI value of ≤15, wherein the OI value of the negative electrode plate represents a ratio C004/C110, in which C004 is the peak area of the diffraction peak of 004 crystal plane of the artificial graphite in the negative electrode plate and C110 is the peak area of the diffraction peak of 110 crystal plane of the artificial graphite in the negative electrode plate. The secondary battery provided by the present application can obtain lower cyclic expansion.",
  "title": "SECONDARY BATTERY, DEVICE, ARTIFICIAL GRAPHITE, AND PREPARATION METHOD THEREFOR"
}