{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "Provided is a technique improving assemblability when a sealing plate is attached to an opening of a case body. The battery case (41) disclosed herein includes: a case body (41a) in bottomed rectangular parallelepiped shape having a substantially rectangular opening (41a1); and a sealing plate…",
  "path": "/patents/1397038",
  "publishedAt": "2025-07-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "PRIME PLANET ENERGY & SOLUTIONS INC [JP]"
  ],
  "textContent": "Provided is a technique improving assemblability when a sealing plate is attached to an opening of a case body. The battery case (41) disclosed herein includes: a case body (41a) in bottomed rectangular parallelepiped shape having a substantially rectangular opening (41a1); and a sealing plate (41b) attached to the opening (41a1). The opening (41a1) of the case body (41a) has long side portions (43a, 44a), short side portions (45a, 46a), R portions (47a - 47d), and steps (43a, 44a) protruding from the inner surfaces of the short side portions (45a, 46a). The R portions (47a - 47d) are each provided with a gradual change region (47c3) where a shape of each the steps (48a, 48b) changes to be gradually close to the shape of each of the inner surfaces of the long side portions (43a, 44a).",
  "title": "BATTERY CASE AND SECONDARY BATTERY INCLUDING THE SAME"
}