{
  "$type": "site.standard.document",
  "description": "An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer, and the first negative electrode active material…",
  "path": "/patents/1381855",
  "publishedAt": "2026-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/628",
    "NINGDE AMPEREX TECHNOLOGY LIMITED"
  ],
  "textContent": "An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer, and the first negative electrode active material layer is located between the negative electrode current collector and the second negative electrode active material layer. The first negative electrode active material layer includes a first silicon-based material, the second negative electrode active material layer includes a second silicon-based material, D10 of the first silicon-based material is 3 μm to 10 μm, D10 of the second silicon-based material is 1 μm to 4 μm, and D10 refers to a particle size corresponding to a cumulative volume percentage of 10% in a volume-based particle size distribution starting from small particles.",
  "title": "ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE"
}