{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The present application discloses a negative active material, preparation process thereof and a secondary battery and the related battery module, battery pack and device. The negative active material comprises a core material and a modified polymer coating layer coated on at least a part of the…",
  "path": "/patents/1424524",
  "publishedAt": "2023-01-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present application discloses a negative active material, preparation process thereof and a secondary battery and the related battery module, battery pack and device. The negative active material comprises a core material and a modified polymer coating layer coated on at least a part of the outer surface of the core material, the core material comprises one or more of silicon-based materials and tin based materials, the coating layer comprises carbon element and nitrogen element, wherein the nitrogen element is present in the negative active material in a mass percentage of 0.1%∼ 0.66%, and the coating layer comprises a -C=N-linkage.",
  "title": "NEGATIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK AND DEVICE ASSOCIATED THEREWITH"
}