{
  "$type": "site.standard.document",
  "description": "The present invention relates to the field of lithium ion battery positive electrode materials, and discloses a positive electrode material, a preparation method therefor, a use thereof, and a lithium ion battery. The positive electrode material is formed by agglomerating primary particles to form…",
  "path": "/patents/1396156",
  "publishedAt": "2026-04-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01G53/50",
    "BEIJING EASPRING MAT TECH CO LTD [CN]"
  ],
  "textContent": "The present invention relates to the field of lithium ion battery positive electrode materials, and discloses a positive electrode material, a preparation method therefor, a use thereof, and a lithium ion battery. The positive electrode material is formed by agglomerating primary particles to form secondary particles; and by means of BJH, the secondary particles obtain phase apertures d10, dso and d90 that meet the following phase system: 10nm≤d50≤40nm; 1≤k90≤8; wherein k90=(d90-d10)/d50. The positive electrode has a specific apertures, apertures distribution, apertures area and microcrystalline structure, so that during the charging and discharging processes of the lithium ion battery prepared from the positive electrode material, the short-term performance, such as the first charging and discharging capacity and long term performance, such as capacity retention ratio can be improved.",
  "title": "POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF, AND LITHIUM ION BATTERY"
}