{
  "$type": "site.standard.document",
  "description": "The present invention is directed to a high-capacity non-aqueous electrolyte secondary battery having good storage characteristics and good rapid charge characteristics. A non-aqueous electrolyte secondary battery according to one aspect of the present invention includes: a positive electrode plate…",
  "path": "/patents/1436718",
  "publishedAt": "2023-07-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "PANASONIC ENERGY CO LTD [JP]"
  ],
  "textContent": "The present invention is directed to a high-capacity non-aqueous electrolyte secondary battery having good storage characteristics and good rapid charge characteristics. A non-aqueous electrolyte secondary battery according to one aspect of the present invention includes: a positive electrode plate in which a positive electrode mixture layer containing a positive electrode active material is formed on a positive electrode current collector; a negative electrode plate in which a negative electrode mixture layer containing a negative electrode active material is formed on a negative electrode current collector; a separator; a non-aqueous electrolyte; a sealing member; and an outer casing. The negative electrode active material contains graphite and a silicon material. The silicon material contains silicon oxide represented by SiOx (0.5 ≤ x < 1.6) and a silicon-lithium silicate composite in which a silicon phase is dispersed in a lithium silicate phase represented by Li2zSiO(2+z) (0 < z < 2). The amount of the silicon-lithium silicate composite is 33% by mass or more and 93% by mass or less relative to the silicon material.",
  "title": "NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY"
}