{
  "$type": "site.standard.document",
  "description": "A secondary battery includes positive and negative electrode sheets, separator between the positive and negative electrode sheets, and electrolytic solution including organic solvent and lithium salt. The positive electrode sheet includes positive electrode current collector and positive electrode…",
  "path": "/patents/1382706",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED"
  ],
  "textContent": "A secondary battery includes positive and negative electrode sheets, separator between the positive and negative electrode sheets, and electrolytic solution including organic solvent and lithium salt. The positive electrode sheet includes positive electrode current collector and positive electrode film layer located on at least one surface of the positive electrode current collector and including positive electrode active material that includes lithium transition metal oxide. The lithium transition metal oxide includes nickel, cobalt, and at least one of manganese and aluminum. In the lithium transition metal oxide, molar content of nickel is 85 mol % or higher based on total molar content of all metal elements except lithium. In DTG curve obtained by heating the positive electrode active material at heating rate of 10° C./min, absolute value of peak value of thermogravimetric change rate of the positive electrode active material is less than 7%/min.",
  "title": "SECONDARY BATTERY, ELECTRIC DEVICE, AND POSITIVE ELECTRODE ACTIVE MATERIAL"
}