{
  "$type": "site.standard.document",
  "description": "Provided is a secondary battery, in the secondary battery, the positive electrode has a covered portion covered with a positive electrode active material layer and a positive electrode active material non-covered portion on a strip-shaped positive electrode foil, the negative electrode has a…",
  "path": "/patents/1390829",
  "publishedAt": "2026-06-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0587",
    "Murata Manufacturing Co., Ltd."
  ],
  "textContent": "Provided is a secondary battery, in the secondary battery, the positive electrode has a covered portion covered with a positive electrode active material layer and a positive electrode active material non-covered portion on a strip-shaped positive electrode foil, the negative electrode has a covered portion covered with a negative electrode active material layer and a negative electrode active material non-covered portion on a strip-shaped negative electrode foil, the positive electrode active material non-covered portion are joined to the positive electrode current collector plate at one end portion of the electrode winding body, the negative electrode active material non-covered portion is joined to the negative electrode current collector plate at the other end portion of the electrode winding body, the electrode winding body has a flat surface formed by bending any one or both of the positive electrode active material non-covered portion and the negative electrode active material non-covered portion.",
  "title": "Secondary battery, electronic device, and power tool"
}