{
  "$type": "site.standard.document",
  "description": "Provided is a means capable of improving battery cycle durability in a non-aqueous electrolyte secondary battery having a capacity and a size which are assumed to increase the capacity. A non-aqueous electrolyte secondary battery including a power generating element including a positive electrode…",
  "path": "/patents/1241876",
  "publishedAt": "2019-08-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M2/14",
    "Nissan Motor Co., Ltd."
  ],
  "textContent": "Provided is a means capable of improving battery cycle durability in a non-aqueous electrolyte secondary battery having a capacity and a size which are assumed to increase the capacity. A non-aqueous electrolyte secondary battery including a power generating element including a positive electrode obtained by forming a positive electrode active material layer containing a positive electrode active material on a surface of a positive electrode current collector, a negative electrode obtained by forming a negative electrode active material layer containing a negative electrode active material on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the separator being 1.55 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the separator is 4.0% or less.",
  "title": "Non-Aqueous Electrolyte Secondary Battery"
}