{
  "$type": "site.standard.document",
  "description": "Disclosed is a lithium ion secondary battery including: a positive electrode, a negative electrode including a negative electrode active material layer comprising an alloy-type active material, a lithium ion-permeable insulating layer interposed between the positive electrode and the negative…",
  "path": "/patents/995181",
  "publishedAt": "2012-12-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "PANASONIC CORP [JP]"
  ],
  "textContent": "Disclosed is a lithium ion secondary battery including: a positive electrode, a negative electrode including a negative electrode active material layer comprising an alloy-type active material, a lithium ion-permeable insulating layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode active material layer includes lithium which has been absorbed therein beforehand. The non-aqueous electrolyte includes a lithium salt and a non-aqueous solvent, and the non-aqueous solvent includes: at least one fluorine-containing compound selected from hydrogen fluoride and a specific fluoroethylene carbonate compound (A); and a carbonate-based solvent (B) other than the fluoroethylene carbonate compound (A).",
  "title": "LITHIUM-ION SECONDARY BATTERY"
}