{
  "$type": "site.standard.document",
  "description": "A negative electrode with little deterioration is provided. A novel negative electrode is provided. A power storage device with little deterioration is provided. A novel power storage device is provided. The electrode contains silicon, graphite, and a graphene compound. A silicon particle with a…",
  "path": "/patents/1382703",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/366",
    "Semiconductor Energy Laboratory Co., Ltd."
  ],
  "textContent": "A negative electrode with little deterioration is provided. A novel negative electrode is provided. A power storage device with little deterioration is provided. A novel power storage device is provided. The electrode contains silicon, graphite, and a graphene compound. A silicon particle with a particle diameter of less than or equal to 1 μm is attached to a graphite particle with a particle diameter 10 times or more that of the silicon particle. The graphene compound is in contact with the graphite particle so as to cover the silicon particle.",
  "title": "ELECTRODE, NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, SECONDARY BATTERY, MOVING VEHICLE, ELECTRONIC DEVICE, METHOD FOR FABRICATING NEGATIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR FABRICATING NEGATIVE ELECTRODE"
}