{
  "$type": "site.standard.document",
  "description": "A lithium-ion secondary battery (5) and related preparation method thereof, battery module (4), battery pack (1) and apparatus. Specifically, a lithium-ion secondary battery (5) includes a positive electrode plate, a negative electrode plate, an electrolyte and a separator, wherein the positive…",
  "path": "/patents/1410946",
  "publishedAt": "2023-02-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "A lithium-ion secondary battery (5) and related preparation method thereof, battery module (4), battery pack (1) and apparatus. Specifically, a lithium-ion secondary battery (5) includes a positive electrode plate, a negative electrode plate, an electrolyte and a separator, wherein the positive electrode plate includes a positive electrode current collector and a first positive electrode active material layer and a second positive electrode active material layer sequentially disposed on at least one side of the positive electrode current collector; the lithium-ion secondary battery (5) satisfies: -1 ≤ log(u/v)×w ≤ 15.5, wherein, u is a thickness of the first positive electrode active material layer in microns, v is a thickness of the second positive electrode active material layer in microns, w is a conductivity of the electrolyte at a temperature of 25°C in mS·cm. The lithium-ion secondary battery (5) has excellent performance such as low discharge resistance at low SOC and low gas production at high temperature.",
  "title": "LITHIUM-ION SECONDARY BATTERY AND RELATED PREPARATION METHOD THEREFOR, BATTERY MODULE, BATTERY PACK, AND DEVICE"
}