{
  "$type": "site.standard.document",
  "description": "This application discloses a negative current collector, a negative electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The negative current collector includes a support layer and a metal conductive layer that is disposed on at least one of two opposite…",
  "path": "/patents/1425753",
  "publishedAt": "2024-09-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "This application discloses a negative current collector, a negative electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The negative current collector includes a support layer and a metal conductive layer that is disposed on at least one of two opposite surfaces of the support layer in a thickness direction of the support layer. A density of the support layer is less than a density of the metal conductive layer; and the density of the metal conductive layer is 8.0g/cm to 8.96g/cm. A thickness D of the metal conductive layer is 300nm≤D≤2µm. When a tensile strain of the negative current collector is 2.5%, a sheet resistance growth rate T of the metal conductive layer is T≤5%. The negative current collector provided in this application can have both a small weight and good conductivity and current collection performance, and therefore the electrochemical apparatus has both a higher weight energy density and good electrochemical performance.",
  "title": "NEGATIVE CURRENT COLLECTOR, NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, BATTERY MODULE, BATTERY PACK, AND DEVICE"
}