{
  "$type": "site.standard.document",
  "description": "The present disclosure provides a secondary battery in which the occurrence of springback is suppressed in a wound electrode body having specific external shape dimensions. The secondary battery disclosed herein has a flat-shaped wound electrode body and a battery case that accommodates the wound…",
  "path": "/patents/1325692",
  "publishedAt": "2022-08-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0587",
    "PRIME PLANET ENERGY & SOLUTIONS, INC."
  ],
  "textContent": "The present disclosure provides a secondary battery in which the occurrence of springback is suppressed in a wound electrode body having specific external shape dimensions. The secondary battery disclosed herein has a flat-shaped wound electrode body and a battery case that accommodates the wound electrode body. A separator of such a secondary battery has a band-shaped base material layer, and a surface layer containing inorganic particles and a binder. At least one from among a positive electrode plate and a negative electrode plate is bonded to the surface layer of the separator. A width dimension of the positive electrode active material layer in the secondary battery disclosed herein is 200 mm or larger, a thickness dimension of the wound electrode body is 8 mm or larger, and a height dimension of the wound electrode body is 120 mm or smaller. The art disclosed herein allows suitably suppressing the occurrence of springback, despite using a wound electrode body having external shape dimensions that readily give rise to springback.",
  "title": "SECONDARY BATTERY AND METHOD FOR PRODUCING SECONDARY BATTERY"
}