{
  "$type": "site.standard.document",
  "description": "A method for preparing a surface-modified lithium/sodium multi-element cathode material, including lithium-ion battery layered oxides (LiTMO, TM=Ni/Co/Mn) and sodium-ion layered oxides (NaTMO, TM=transition/alkali/alkaline earth metals such as Ti/V/Cr/Mn/Fe/Co/Ni/Cu/Zn/Sn/Ir/Ru/Li/Mg). Taking a…",
  "path": "/patents/1377107",
  "publishedAt": "2025-11-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/366",
    "Zhejiang Amandarry New Materials Technologies Co., Ltd."
  ],
  "textContent": "A method for preparing a surface-modified lithium/sodium multi-element cathode material, including lithium-ion battery layered oxides (LiTMO, TM=Ni/Co/Mn) and sodium-ion layered oxides (NaTMO, TM=transition/alkali/alkaline earth metals such as Ti/V/Cr/Mn/Fe/Co/Ni/Cu/Zn/Sn/Ir/Ru/Li/Mg). Taking a high-nickel ternary material (with surface-attached lithium carbonate) as an example: the material is mixed with aluminum diethylphosphinate and sintered in a sintering atmosphere at 500-900° C. for 2-20 h (heating rate: 0.5-5° C./min) to form a coating layer of aluminum phosphate/lithium phosphate. This coating stabilizes the interface, alleviates cyclic crystal structure degradation, and extends cycle life. For sodium-ion layered oxides (NaTMO), a similar modification forms NaAlPOas the surface layer, thereby enhancing electrochemical performance.",
  "title": "METHOD FOR PREPARING SURFACE-MODIFIED LITHIUM/SODIUM MULTICOMPONENT CATHODE MATERIALS"
}