{
  "$type": "site.standard.document",
  "description": "The negative electrode includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer includes a first layer existing on a side of a surface layer part and a second…",
  "path": "/patents/1380513",
  "publishedAt": "2026-04-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/587",
    "Prime Planet Energy & Solutions, Inc."
  ],
  "textContent": "The negative electrode includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer includes a first layer existing on a side of a surface layer part and a second layer existing on a side of the negative electrode current collector. The first layer includes first graphite particles and first Si-containing particles. The second layer includes second graphite particles and second Si-containing particles. The Si content ratio in the first Si-containing particle is smaller than that in the second Si-containing particle. Each of the first Si-containing particle and the second Si-containing particle is coated with a conductive material. The ratio of the coating amount (mass %) of the conductive material for the second Si-containing particle to the coating amount (mass %) of the conductive material for the first Si-containing particle is 2.5 or more.",
  "title": "NEGATIVE ELECTRODE OF SECONDARY BATTERY, AND SECONDARY BATTERY USING THE NEGATIVE ELECTRODE"
}