{
  "$type": "site.standard.document",
  "description": "A horn according to an embodiment of the present invention to solve the problems includes a plurality of protrusion formation parts, each of which has a plurality of protrusions that protrude from a welding surface and are arranged in a line in at least one row, the plurality of protrusion…",
  "path": "/patents/1416531",
  "publishedAt": "2026-01-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B23K20/002",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "A horn according to an embodiment of the present invention to solve the problems includes a plurality of protrusion formation parts, each of which has a plurality of protrusions that protrude from a welding surface and are arranged in a line in at least one row, the plurality of protrusion formation parts respectively forming pattern formation parts on an outermost electrode tab of electrode tabs of a secondary battery and a protrusion-free part which is disposed between the plurality of protrusion formation parts and in which the protrusions are not provided to expose the welding surface to the outside, the protrusion-free part forming a pattern-free part on the outermost electrode tab. The protrusion-free part has a width greater than that of each of the protrusions.",
  "title": "HORN AND WELDING DEVICE"
}