{
  "$type": "site.standard.document",
  "description": "This application relates to a negative electrode active material and an electrochemical device and an electronic device using the same. Specifically, this application provides a negative electrode active material, where the negative electrode active material has a median particle size D1v50, the…",
  "path": "/patents/1412257",
  "publishedAt": "2025-09-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B32/20",
    "NINGDE AMPEREX TECHNOLOGY LTD [CN]"
  ],
  "textContent": "This application relates to a negative electrode active material and an electrochemical device and an electronic device using the same. Specifically, this application provides a negative electrode active material, where the negative electrode active material has a median particle size D1v50, the negative electrode active material has a median particle size D2v50 under a pressure of 1 t, and D2v50/D1v50 is not less than 0.8. The negative electrode active material of this application helps to achieve a balance between high capacity and high cycle expansion performance of an electrochemical device.",
  "title": "NEGATIVE ELECTRODE ACTIVE MATERIAL AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE USING SAME"
}