{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to the technical field of secondary battery, and discloses a positive electrode material and a preparation method and use therefor, a lithium-ion battery positive electrode poly piece, and a lithium-ion battery. The positive electrode material comprises multicrystal…",
  "path": "/patents/1401746",
  "publishedAt": "2026-04-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/0525",
    "BEIJING EASPRING MAT TECH CO LTD [CN]"
  ],
  "textContent": "The present disclosure relates to the technical field of secondary battery, and discloses a positive electrode material and a preparation method and use therefor, a lithium-ion battery positive electrode poly piece, and a lithium-ion battery. The positive electrode material comprises multicrystal particles A and single crystal particles or quasi single crystal particles B; the particle diameters D5, D50 and D95 of the cathode material satisfy the relationship shown in Formula I: 1.5≤K95=D95−D5/D50≤2.5 The positive electrode material comprises multicrystal particles A and single crystal particles or quasi single crystal particles B, whereby it can significantly suppress generation of micro-cracks in the cathode material, and enhance particle strength of the positive electrode material, so that the positive electrode material has a high compaction density and a high compressive strength, thereby ensuring that a battery comprising the positive electrode material has a high volumetric energy density and a relatively long cycle life.",
  "title": "POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD AND USE THEREFOR, LITHIUM-ION BATTERY POSITIVE ELECTRODE POLE PIECE, AND LITHIUM-ION BATTERY"
}