{
  "$type": "site.standard.document",
  "description": "The present application provides a secondary battery including a negative electrode sheet, and the negative electrode sheet includes: a negative electrode current collector; a first negative film layer provided on at least one surface of the negative electrode current collector; and a second…",
  "path": "/patents/1346757",
  "publishedAt": "2023-06-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/366",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED"
  ],
  "textContent": "The present application provides a secondary battery including a negative electrode sheet, and the negative electrode sheet includes: a negative electrode current collector; a first negative film layer provided on at least one surface of the negative electrode current collector; and a second negative film layer provided on a surface of the first negative film layer; where the first negative film layer includes a first negative active material and a first conductive agent, and the first negative active material includes a silicon-based material; and a mass proportion of the silicon-based material in the first negative film layer is greater than or equal to 30%, and a mass proportion of the first conductive agent in the first negative film layer is greater than or equal to 25%. A battery cell of the secondary battery of the present application does not easily expand and has good cycle performance.",
  "title": "SECONDARY BATTERY AND POWER CONSUMPTION APPARATUS INCLUDING THE SAME"
}