{
  "$type": "site.standard.document",
  "description": "A cap assembly includes a vent deformable in response to a change in pressure, a cap-up on the vent and connected to an external terminal, the vent surrounding a portion of an upper surface and a side surface of an outer edge of the cap-up, a cap-down that is below the vent, and a plurality of…",
  "path": "/patents/1377654",
  "publishedAt": "2025-12-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/152",
    "SAMSUNG SDI CO., LTD."
  ],
  "textContent": "A cap assembly includes a vent deformable in response to a change in pressure, a cap-up on the vent and connected to an external terminal, the vent surrounding a portion of an upper surface and a side surface of an outer edge of the cap-up, a cap-down that is below the vent, and a plurality of welding marks at a plurality of points on a portion of the vent arranged on the portion of the upper surface of the outer edge of the cap-up, wherein each of the plurality of welding marks intersects at least three times with an imaginary straight line in a region where the upper surface of the outer edge of the cap-up and the vent come into contact, and wherein the imaginary straight line is horizontal with respect to a boundary surface between the upper surface of the outer edge of the cap-up and the vent.",
  "title": "CAP ASSEMBLY, CAP ASSEMBLY MANUFACTURING METHOD AND SECONDARY BATTERY INCLUDING CAP ASSEMBLY"
}