{
  "$type": "site.standard.document",
  "description": "The present disclosure provides a negative electrode active material for a fluoride ion secondary battery, the negative electrode active material including yttrium fluoride, where a crystallite size of the negative electrode active material is more than 7 nm and less than 27 nm. A fluoride ion…",
  "path": "/patents/1390416",
  "publishedAt": "2026-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/58",
    "PANASONIC ENERGY CO LTD [JP]"
  ],
  "textContent": "The present disclosure provides a negative electrode active material for a fluoride ion secondary battery, the negative electrode active material including yttrium fluoride, where a crystallite size of the negative electrode active material is more than 7 nm and less than 27 nm. A fluoride ion secondary battery 10 of the present disclosure includes a positive electrode 2, a negative electrode 4, and an electrolyte layer 3 disposed between the positive electrode 2 and the negative electrode 4, where the negative electrode 4 includes the negative electrode active material of the present disclosure.",
  "title": "NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE MATERIAL, AND FLUORIDE ION SECONDARY BATTERY"
}