{
  "$type": "site.standard.document",
  "description": "This application provides a negative-electrode active material, a preparation method thereof, a secondary battery and an apparatus. The negative-electrode active material includes a carbon matrix, boron and iron, where the iron is distributed in the interior of the carbon matrix. Secondary…",
  "path": "/patents/1405551",
  "publishedAt": "2025-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/0471",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "This application provides a negative-electrode active material, a preparation method thereof, a secondary battery and an apparatus. The negative-electrode active material includes a carbon matrix, boron and iron, where the iron is distributed in the interior of the carbon matrix. Secondary batteries including such negative-electrode active material can have both good fast charging performance and good cycling performance.",
  "title": "NEGATIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, SECONDARY BATTERY AND APPARATUS"
}