{
  "$type": "site.standard.document",
  "description": "The present application provides a battery cell, a battery, and an electrical apparatus, which belongs to the field of battery technologies. The battery cell includes a shell. The shell has a wall portion, the wall portion is provided with a first weak portion and a pressure relief region, and the…",
  "path": "/patents/1417070",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/103",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present application provides a battery cell, a battery, and an electrical apparatus, which belongs to the field of battery technologies. The battery cell includes a shell. The shell has a wall portion, the wall portion is provided with a first weak portion and a pressure relief region, and the wall portion is configured to be capable of cracking along the first weak portion to open the pressure relief region. The wall portion is further provided with a second weak portion, and the pressure relief region is configured to be capable of flipping around the second weak portion when the first weak portion cracks, so as to relieve an internal pressure of the battery cell. The second weak portion is provided on the wall portion, so that the pressure relief region, when opened, is capable of flipping with the second weak portion as an axis, thereby improving an opening effect of the pressure relief region of the wall portion, which is conducive to increasing a pressure relief area of the battery cell after the pressure relief region is opened, and further improving a pressure relief rate of the battery cell when thermal runaway occurs, so as to reduce the risk of fire, explosion, or connection failure of the battery cell due to untimely pressure relief, and is conducive to improving the reliability in use of the battery cell.",
  "title": "BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS"
}