{
  "$type": "site.standard.document",
  "description": "A secondary battery includes an electrode assembly, a cylindrical case including a bottom portion, a side wall portion connected to the bottom portion, and an upper opening portion facing the bottom portion, the cylindrical case accommodating the electrode assembly, a cap assembly coupled to the…",
  "path": "/patents/1377928",
  "publishedAt": "2026-01-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/186",
    "SAMSUNG SDI CO., LTD."
  ],
  "textContent": "A secondary battery includes an electrode assembly, a cylindrical case including a bottom portion, a side wall portion connected to the bottom portion, and an upper opening portion facing the bottom portion, the cylindrical case accommodating the electrode assembly, a cap assembly coupled to the upper opening portion, and a gasket between the cylindrical case and the cap assembly, the gasket including a cylindrical body portion, a first extension portion extending from the cylindrical body portion toward an interior of the cylindrical case, and a second extension portion extending obliquely downward from the first extension portion toward the bottom portion of the cylindrical case, the second extension portion including a lower surface, an inner surface, and an inclined portion extending between and obliquely with respect to the lower surface and the inner surface.",
  "title": "SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME"
}