{
  "$type": "site.standard.document",
  "description": "A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present invention is provided with a positive electrode (11) that comprises a lithium metal composite oxide and a negative electrode (12) that comprises graphite. The lithium metal composite oxide contains first…",
  "path": "/patents/1434050",
  "publishedAt": "2025-11-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "PANASONIC CORP [JP]"
  ],
  "textContent": "A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present invention is provided with a positive electrode (11) that comprises a lithium metal composite oxide and a negative electrode (12) that comprises graphite. The lithium metal composite oxide contains first composite oxide particles, which are secondary particles wherein primary particles having an average particle diameter of from 50 nm to 5 µm aggregate, and second composite oxide particles, which are non-aggregated particles having an average particle diameter of from 2 µm to 20 µm. The initial charge/discharge efficiency of the positive electrode (11) is lower than the initial charge/discharge efficiency of the negative electrode (12).",
  "title": "NONAQUEOUS ELECTROLYTE SECONDARY BATTERY"
}