{
  "$type": "site.standard.document",
  "description": "The present disclosure aims to provide a nonaqueous electrolyte secondary battery excellent in cycle characteristics. A nonaqueous electrolyte secondary battery according to an aspect of the present disclosure includes: an electrode body in which a positive electrode plate and a negative electrode…",
  "path": "/patents/1420360",
  "publishedAt": "2024-10-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "PANASONIC IP MAN CO LTD [JP]"
  ],
  "textContent": "The present disclosure aims to provide a nonaqueous electrolyte secondary battery excellent in cycle characteristics. A nonaqueous electrolyte secondary battery according to an aspect of the present disclosure includes: an electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween; and an exterior package which receives the electrode body, the negative electrode plate includes a negative electrode collector, a first negative electrode mixture layer formed on a winding inside first surface of the negative electrode collector, and a second negative electrode mixture layer formed on a winding outside second surface of the negative electrode collector, the first negative electrode mixture layer contains first graphite particles as a primary component, the second negative electrode mixture layer contains second graphite particles as a primary component, and the first graphite particles has an internal void rate lower than an internal void rate of the second graphite particles.",
  "title": "NONAQUEOUS ELECTROLYTE SECONDARY BATTERY"
}