{
  "$type": "site.standard.document",
  "description": "Embodiments of this application disclose an electrode assembly, a battery cell, a battery, and a method and apparatus for manufacturing an electrode assembly. The electrode assembly includes a positive electrode plate and a negative electrode plate, where the positive electrode plate and the…",
  "path": "/patents/1405372",
  "publishedAt": "2025-05-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "Embodiments of this application disclose an electrode assembly, a battery cell, a battery, and a method and apparatus for manufacturing an electrode assembly. The electrode assembly includes a positive electrode plate and a negative electrode plate, where the positive electrode plate and the negative electrode plate are wound or stacked to form a bend region; and the bend region is provided with a barrier layer, where at least part of the barrier layer is located between the positive electrode plate and the negative electrode plate that are adjacent to each other, and is used to prevent at least part of ions deintercalated from the positive electrode plate from being intercalated into the negative electrode plate in the bend region. According to the technical solution described above, the barrier layer is provided between the positive electrode plate and the negative electrode plate that are adjacent to each other in the bend region, so as to prevent at least part of ions deintercalated from a positive electrode active material layer from being intercalated into a negative electrode active material layer of the negative electrode plate adjacent to the positive electrode plate in the bend region. This reduces lithium precipitation, improves safety performance of battery cells, and improves service life of the battery cells.",
  "title": "ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD AND APPARATUS FOR MANUFACTURING ELECTRODE ASSEMBLY"
}