{
  "$type": "site.standard.document",
  "description": "Provided is a long aluminum foil capable of suppressing, in a case where the aluminum foil is provided with a region where through-holes are not formed, occurrence of deformation at a boundary portion between a region where through-holes are formed and the region where through-holes are not formed…",
  "path": "/patents/1319202",
  "publishedAt": "2022-06-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/762",
    "FUJIFILM Corporation"
  ],
  "textContent": "Provided is a long aluminum foil capable of suppressing, in a case where the aluminum foil is provided with a region where through-holes are not formed, occurrence of deformation at a boundary portion between a region where through-holes are formed and the region where through-holes are not formed. The long aluminum foil includes, in a width direction orthogonal to a longitudinal direction, a perforated portion, a non-perforated portion, and a boundary portion between the perforated portion and the non-perforated portion, in which the perforated portion has a plurality of through-holes penetrating therethrough in a thickness direction, the non-perforated portion does not have a through-hole, the boundary portion has a plurality of through-holes penetrating therethrough in the thickness direction and a plurality of non-through-holes, and an opening ratio of the through-hole in the boundary portion gradually decreases from a perforated portion side to a non-perforated portion side.",
  "title": "ALUMINUM FOIL"
}