{
  "$type": "site.standard.document",
  "description": "The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery. The negative electrode film of the secondary battery comprises a first negative electrode film and a second negative electrode film; the first negative…",
  "path": "/patents/1412793",
  "publishedAt": "2023-01-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B32/20",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the secondary battery. The negative electrode film of the secondary battery comprises a first negative electrode film and a second negative electrode film; the first negative electrode film is disposed on at least one surface of the negative electrode current collector and comprises a first negative electrode active material; and the second negative electrode film is disposed on the first negative electrode film and comprises a second negative electrode active material, the first negative electrode active material comprises natural graphite and the first negative electrode active material satisfies: 0.60≤S1≤0.85, where S1=W2H/(W3R+W2H); and the second negative electrode active material comprises artificial graphite, in which W3R is a peak area of 101 crystal plane in a X-ray diffraction spectrum of the first negative electrode active material at a diffraction angle of 43.3±0.05°, and W2H is a peak area of 101 crystal plane in a X-ray diffraction spectrum of the first negative electrode active material at a diffraction angle of 44.5±0.05°. The secondary battery according to the present application has both better low-temperature rate performance and longer high-temperature cycle life while having a higher energy density.",
  "title": "SECONDARY BATTERY, PROCESS FOR PREPARING THE SAME AND APPARATUS CONTAINING THE SECONDARY BATTERY"
}