{
  "$type": "site.standard.document",
  "description": "A method of producing a lithium ion secondary battery includes preparing an electrode body which includes a positive electrode and a negative electrode and in which the negative electrode contains a negative electrode material containing a porous graphite particle having open pores and SiOdisposed…",
  "path": "/patents/1352799",
  "publishedAt": "2023-10-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "A method of producing a lithium ion secondary battery includes preparing an electrode body which includes a positive electrode and a negative electrode and in which the negative electrode contains a negative electrode material containing a porous graphite particle having open pores and SiOdisposed in the open pores, producing a battery assembly including the electrode body and a non-aqueous electrolytic solution containing LiPFwith a concentration of mol/L or more, and generating lithium difluorophosphate in the electrode body",
  "title": "METHOD OF PRODUCING LITHIUM ION SECONDARY BATTERY AND NEGATIVE ELECTRODE MATERIAL"
}