{
  "$type": "site.standard.document",
  "description": "A positive electrode material, a preparation method thereof and a lithium-ion battery are provided. A first aspect provides a positive electrode active material, where a chemical composition of the positive electrode active material is Li[NiCoM1M2]OA, M1 is one or two of Mn or Al, M2 is one or more…",
  "path": "/patents/1382258",
  "publishedAt": "2026-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/525",
    "Ningbo Ronbay New Energy Technology Co., Ltd."
  ],
  "textContent": "A positive electrode material, a preparation method thereof and a lithium-ion battery are provided. A first aspect provides a positive electrode active material, where a chemical composition of the positive electrode active material is Li[NiCoM1M2]OA, M1 is one or two of Mn or Al, M2 is one or more of Zr, Mg, Ti, Te, Al, Ca, Sr, Sb, Nb, Pb, V, Ge, Se, W, Mo, Zn, Ce, or Y; and A is one of F, Cl, or S. By controlling the Ni content in secondary particles of different particle sizes, the problem of non-uniform degradation of the secondary particles of different particle sizes during battery cycling can be avoided, thereby improving the cycling stability of lithium-ion batteries.",
  "title": "POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM-ION BATTERY"
}