{
  "$type": "site.standard.document",
  "description": "A positive electrode active material for a lithium ion secondary battery, the positive electrode active material including a lithium-nickel composite oxide having a hexagonal layered structure and configured by single primary particles or by single primary particles and secondary particles with a…",
  "path": "/patents/1326529",
  "publishedAt": "2022-09-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/505",
    "SUMITOMO METAL MINING CO., LTD."
  ],
  "textContent": "A positive electrode active material for a lithium ion secondary battery, the positive electrode active material including a lithium-nickel composite oxide having a hexagonal layered structure and configured by single primary particles or by single primary particles and secondary particles with a plurality of aggregated primary particles, wherein a number proportion of the single primary particles to all of the particles is 30% or more, a ratio of a (003) diffraction peak intensity Ito a (104) diffraction peak intensity I(I/I) is 2.0 or more, and a degree of circularity is 0.93 or more and 1.00 or less.",
  "title": "POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY"
}