{
  "$type": "site.standard.document",
  "description": "A positive electrode active material for lithium ion secondary batteries containing secondary particles in which a plurality of primary particles are mutually agglomerated contains: a lithium transition metal complex oxide having a layered rock salt-type structure; and crystallized lithium…",
  "path": "/patents/1390424",
  "publishedAt": "2026-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01G53/00",
    "SUMITOMO METAL MINING CO [JP]"
  ],
  "textContent": "A positive electrode active material for lithium ion secondary batteries containing secondary particles in which a plurality of primary particles are mutually agglomerated contains: a lithium transition metal complex oxide having a layered rock salt-type structure; and crystallized lithium phosphate. In a crystal structure analysis of the lithium transition metal complex oxide having the layered rock salt-type structure by neutron diffraction, a ratio by which an element other than lithium occupies a lithium site (3b site) is 3% or greater and 8% or less.",
  "title": "POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY"
}