{
  "$type": "site.standard.document",
  "description": "A positive electrode active material with high capacity and excellent charge and discharge cycle performance, a positive electrode active material with high productivity, a positive electrode active material that suppresses a decrease in capacity, or the like is provided. Alternatively, a…",
  "path": "/patents/1320167",
  "publishedAt": "2022-06-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01G53/42",
    "SEMICONDUCTOR ENERGY LABORATORY CO., LTD."
  ],
  "textContent": "A positive electrode active material with high capacity and excellent charge and discharge cycle performance, a positive electrode active material with high productivity, a positive electrode active material that suppresses a decrease in capacity, or the like is provided. Alternatively, a high-capacity secondary battery, a secondary battery with excellent charge and discharge characteristics, a highly safe or reliable secondary battery, or the like is provided. The positive electrode active material is obtained by a first heating step of heating a mixture of a first material, a second material, and a third material and a second heating step of heating a mixture which is a mixture of the mixture, a fourth material, and a fifth material and has a total amount of 15 g or more. The first material is a halogen compound including an alkali metal, the second material includes magnesium, the third material is a metal oxide including a metal A and cobalt, the fourth material includes nickel, and the fifth material includes aluminum. Each heating is performed in an atmosphere including oxygen. A temperature in the first heating step is lower than a temperature in the second heating step by 20° C. or more.",
  "title": "METHOD FOR FORMING POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SECONDARY BATTERY, AND SECONDARY BATTERY"
}