{
  "$type": "site.standard.document",
  "description": "A negative electrode active material of the present disclosure includes composite particles 10 each including a base particle 11. The base particle 11 includes an alkali aluminate phase 12 including at least one alkali metal element and AI, and a silicon phase 13 dispersed in the alkali aluminate…",
  "path": "/patents/1390445",
  "publishedAt": "2026-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/36",
    "PANASONIC IP MAN CO LTD [JP]"
  ],
  "textContent": "A negative electrode active material of the present disclosure includes composite particles 10 each including a base particle 11. The base particle 11 includes an alkali aluminate phase 12 including at least one alkali metal element and AI, and a silicon phase 13 dispersed in the alkali aluminate phase 12. The total pore volume of pores 14 having a diameter of 10 nm or more and 200 nm or less in the composite particles 10, as calculated by the BJH method, is 0.05 cm/g or less.",
  "title": "NEGATIVE-ELECTRODE ACTIVE MATERIAL AND BATTERY"
}