{
  "$type": "site.standard.document",
  "description": "An electrochemical device includes a negative electrode plate, the negative electrode plate includes a current collector, a first active material layer, and a second active material layer. The first active material layer is located between the current collector and the second active material layer…",
  "path": "/patents/1406074",
  "publishedAt": "2025-12-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "NINGDE AMPEREX TECHNOLOGY LTD [CN]"
  ],
  "textContent": "An electrochemical device includes a negative electrode plate, the negative electrode plate includes a current collector, a first active material layer, and a second active material layer. The first active material layer is located between the current collector and the second active material layer. The first active material layer includes a silicon-based material. The second active material layer includes lithium titanium oxide. An average particle diameter of the lithium titanium oxide is 1 nm to 1500 nm. By virtue of a stable structure, the lithium titanium oxide generates almost zero strain during cycles of the electrochemical device, incurs few side reactions with an electrolytic solution, and suppresses reactivity between a silicon-based material particle in the underneath first active material layer and the electrolytic solution, thereby reducing cycle expansion of the electrochemical device.",
  "title": "NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL DEVICE, AND ELECTRONIC DEVICE"
}