{
  "$type": "site.standard.document",
  "description": "The present application relates to a top cap assembly, a secondary battery, a battery module, and a device. The top cap assembly includes a top cap plate, having electrode lead-out hole; an electrode terminal, arranged at the top cap plate and covering the electrode lead-out hole; a current…",
  "path": "/patents/1414853",
  "publishedAt": "2023-10-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0431",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present application relates to a top cap assembly, a secondary battery, a battery module, and a device. The top cap assembly includes a top cap plate, having electrode lead-out hole; an electrode terminal, arranged at the top cap plate and covering the electrode lead-out hole; a current collecting member, in which the current collecting member includes a convex portion having an accommodating cavity, at least part of the convex portion is arranged in the electrode lead-out hole, and welded and connected to the electrode terminal to form a welding portion facing the accommodating cavity, the current collecting member has a connecting hole, and the connecting hole has a first opening formed on a surface of the current collecting member away from the electrode terminal; an insulating protection member, in which the insulating protection member is arranged at a side of the current collecting member away from the electrode terminal, the insulating protection member includes a shielding portion and a connecting portion connected with the shielding portion, the shielding portion shields the welding portion, and at least part of the connecting portion extends into the connecting hole through the first opening and is connected and fixed to the current collecting member. The top cap assembly of the present application can block metal chips falling from the welding portion by the insulating protection member, in which the welding portion is formed by the welding and connection between the current collecting member and the electrode terminal, thereby improving the operational safety of the secondary battery.",
  "title": "TOP COVER ASSEMBLY, SECONDARY BATTERY, BATTERY MODULE AND DEVICE"
}