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  "description": "A positive current collector (10), a positive electrode plate (20), a secondary battery (5), and an apparatus, the positive current collector (10) comprising a support layer (101), provided with two opposing surfaces (101a, 101b) in the thickness direction thereof, and a conductive layer (102)…",
  "path": "/patents/1413495",
  "publishedAt": "2024-04-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "A positive current collector (10), a positive electrode plate (20), a secondary battery (5), and an apparatus, the positive current collector (10) comprising a support layer (101), provided with two opposing surfaces (101a, 101b) in the thickness direction thereof, and a conductive layer (102) arranged on at least one of the two surfaces (101a, 101b) of the support layer (101), wherein the conductive layer (102) has a thickness D1 satisfying 300 nm ≤ D1 ≤ 2µm; and when the positive current collector (10) has a the tensile strain of 1.5%, the conductive layer (102) has a sheet resistance growth rate of T ≤ 30%. The positive current collector (10) has higher safety performance and meanwhile higher electrical performance, and thus a positive electrode plate (20) and a secondary battery (5) adopting the positive current collector (10) could have higher safety performance and meanwhile higher electro-chemical performance.",
  "title": "POSITIVE CURRENT COLLECTOR, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, AND DEVICE"
}