{
  "$type": "site.standard.document",
  "description": "A positive electrode material and a preparation method thereof, and a lithium-ion battery. The positive electrode material includes: a core layer including Li, Fe, Mn, PO ions, and doping element A; a shell layer, where at least a surface portion of the shell layer is coated on an outer surface of…",
  "path": "/patents/1382261",
  "publishedAt": "2026-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/5825",
    "Ningbo Ronbay New Energy Technology Co.,Ltd."
  ],
  "textContent": "A positive electrode material and a preparation method thereof, and a lithium-ion battery. The positive electrode material includes: a core layer including Li, Fe, Mn, PO ions, and doping element A; a shell layer, where at least a surface portion of the shell layer is coated on an outer surface of the core layer and the shell layer includes a first carbon particle and a second carbon particle; where the doping element A includes at least one element of Al, Mg, Ni, Co, Ti, Ga, Cu, V, Nb, Zr, Ce, In, Zn and Y; a distance difference between the highest point and the lowest point in a single surface of the positive electrode material is not more than 1 nm, and the surface roughness of the positive electrode material is 0.8 μm to 1.6 μm.",
  "title": "POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, AND LITHIUM-ION BATTERY"
}