{
  "$type": "site.standard.document",
  "description": "A positive electrode active material includes powder including single crystal particles (1). Each of the single crystal particles (1) includes a lithium transition metal composite oxide. The lithium transition metal composite oxide has a crystal structure that belongs to R-3m space group and…",
  "path": "/patents/965131",
  "publishedAt": "2026-05-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "A positive electrode active material includes powder including single crystal particles (1). Each of the single crystal particles (1) includes a lithium transition metal composite oxide. The lithium transition metal composite oxide has a crystal structure that belongs to R-3m space group and includes at least nickel. In a scanning electron microscope image of the powder, the single crystal particles (1) do not aggregate and are independent single particles. Each of the single crystal particles (1) has a polyhedral shape. Each of the single crystal particles (1) has a longest side (1a) and a short side (1b). The longest side (1a) extends along a 003 plane. The short side (1b) is connected to an end of the longest side (1a). An interior angle formed between the longest side (1a) and the short side (1b) ranges from 60° to 120°. A ratio of the longest side (1a) to the short side (1b) is greater than or equal to 1.10.",
  "title": "POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY"
}