{
  "$type": "site.standard.document",
  "description": "Embodiments of this application provide an electrode assembly, a battery cell, a battery, and a method and device for manufacturing an electrode assembly. The electrode assembly includes a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative…",
  "path": "/patents/1403911",
  "publishedAt": "2025-09-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "Embodiments of this application provide an electrode assembly, a battery cell, a battery, and a method and device for manufacturing an electrode assembly. The electrode assembly includes a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative electrode plate are wound or folded to form a bend region. The positive electrode plate includes a plurality of bend portions located in the bend region. Each bend portion includes a positive current collecting layer and a positive active material layer. The positive current collecting layer is coated with the positive active material layer on at least one surface in a thickness direction of the positive electrode plate. A barrier layer is disposed between the positive current collecting layer and the positive active material layer. The barrier layer is configured to prevent electron transport between the positive current collecting layer and the positive active material layer, thereby weakening or precluding delithiation reactions of the positive active material layer, and making the positive active material layer refrain from deintercalating lithium ions or deintercalate just a small quantity of lithium ions. Therefore, this solution reduces the probability of lithium plating or avoids occurrence of lithium plating, and in turn, improves battery safety.",
  "title": "ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD FOR MANUFACTURING SAID ELECTRODE ASSEMBLY"
}