{
  "$type": "site.standard.document",
  "description": "A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising a silicon clathrate II type crystal phase, including a void inside a primary…",
  "path": "/patents/1340156",
  "publishedAt": "2023-03-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/386",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising a silicon clathrate II type crystal phase, including a void inside a primary particle, and a void amount A of the void with a fine pore diameter of 100 nm or less is more than 0.15 cc/g and 0.40 cc/g or less.",
  "title": "ACTIVE MATERIAL, ANODE LAYER, BATTERY, AND METHODS FOR PRODUCING THESE"
}