{
  "$type": "site.standard.document",
  "description": "A lithium ion secondary battery that includes: a positive electrode having a positive electrode active material capable of storing and releasing lithium ions, the positive electrode active material containing positive electrode active material grains having a coating layer containing a carbon…",
  "path": "/patents/1285571",
  "publishedAt": "2021-03-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/366",
    "Murata Manufacturing Co., Ltd."
  ],
  "textContent": "A lithium ion secondary battery that includes: a positive electrode having a positive electrode active material capable of storing and releasing lithium ions, the positive electrode active material containing positive electrode active material grains having a coating layer containing a carbon compound having an acid functional group, and an amount of the acid functional group in a composite including the positive electrode active material and the coating layer is 0.004 mmol/g to 0.0062 mmol/g; a negative electrode having a negative electrode active material capable of storing and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte containing a polar solvent having a relative permittivity of 20 or more.",
  "title": "LITHIUM ION SECONDARY BATTERY"
}