{
  "$type": "site.standard.document",
  "description": "Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes positive active material particles having a layered rock salt type crystal structure. A filling ratio of the positive active material…",
  "path": "/patents/1290319",
  "publishedAt": "2021-05-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/661",
    "MURATA MANUFACTURING CO., LTD."
  ],
  "textContent": "Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes positive active material particles having a layered rock salt type crystal structure. A filling ratio of the positive active material particles in the positive electrode is 85% or more. The positive active material particles include broken particles in which a longest diameter is within a range from 15 μm to 30 μm. A crack with a length ⅕ times or more and ⅓ times or less the longest diameter of the broken particles is present. The crack has an intersection, and an abundance ratio x of broken particle is 20% or less.",
  "title": "NONAQUEOUS ELECTROLYTE SECONDARY BATTERY"
}