{
  "$type": "site.standard.document",
  "description": "A secondary cell that is one example of this embodiment comprises a winding-type electrode body in which a positive electrode and a negative electrode are wound with a separator interposed therebetween. The positive electrode has: a positive-electrode collector body; a first positive-electrode…",
  "path": "/patents/1320319",
  "publishedAt": "2022-06-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/366",
    "Panasonic Intellectual Property Management Co., Ltd."
  ],
  "textContent": "A secondary cell that is one example of this embodiment comprises a winding-type electrode body in which a positive electrode and a negative electrode are wound with a separator interposed therebetween. The positive electrode has: a positive-electrode collector body; a first positive-electrode mixture layer formed on a first surface of the positive-electrode collector body facing the outer side of the electrode body; and a second positive-electrode mixture layer formed on a second surface of the positive-electrode collector body facing the inner side of the electrode body. The first positive-electrode mixture layer includes a first positive-electrode active material, and the second positive-electrode mixture layer includes a second positive-electrode active material, the average surface roughness of the first positive-electrode active material being greater than the average surface roughness of the second positive-electrode active material.",
  "title": "SECONDARY CELL"
}