{
  "$type": "site.standard.document",
  "description": "Embodiments of the present application provide a battery cell, a battery, an electrical device, and a manufacturing method and device for the battery cell, which belong to the technical field of batteries. A battery cell comprises: an electrode assembly, a housing and an end cap. The electrode…",
  "path": "/patents/1401574",
  "publishedAt": "2025-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/107",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "Embodiments of the present application provide a battery cell, a battery, an electrical device, and a manufacturing method and device for the battery cell, which belong to the technical field of batteries. A battery cell comprises: an electrode assembly, a housing and an end cap. The electrode assembly has a first tab. The housing has an opening for accommodating the electrode assembly. The end cap is configured to connect with the housing and cover the opening. The end cap has an abutting surface and a welding groove, the abutting surface is configured to abut against the first tab, and the welding groove is recessed from one side of the end cap away from the electrode assembly towards the abutting surface. The end cap forms a connection part between the abutting surface and the bottom surface of the welding groove, and the connection part is configured for being welded with the first tab. The end cap is provided with a reinforcing part, the reinforcing part is protruded from the bottom surface, and the reinforcing part is configured to enhance the strength of the connection part. The reinforcing part can play a role of strengthening the connection part used for being welded with the first tab, improve the strength of the connection part, reduce the risk of failure of the battery cell due to the damage of the connection part under pressure, and improve service life of the battery cell.",
  "title": "BATTERY CELL, BATTERY, ELECTRICAL DEVICE, AND MANUFACTURING METHOD AND DEVICE FOR BATTERY CELL"
}