{
  "$type": "site.standard.document",
  "description": "The present application provides a silicon-oxygen composite negative electrode material and method for preparation thereof and lithium-ion battery. The silicon-oxygen composite negative electrode material comprises a silicon-oxygen composite negative electrode material comprising SiO…",
  "path": "/patents/1315328",
  "publishedAt": "2022-04-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/48",
    "BTR NEW MATERIAL GROUP CO., LTD."
  ],
  "textContent": "The present application provides a silicon-oxygen composite negative electrode material and method for preparation thereof and lithium-ion battery. The silicon-oxygen composite negative electrode material comprises a silicon-oxygen composite negative electrode material comprising SiO, non-LiSiOlithium-containing compound, and LiSiO; said LiSiOis coated on the surface of the non-LiSiOlithium-containing compound; 0≤x≤1.2. The preparation method comprises: mixing a first silicon source with a reducing lithium source and roasting, to obtain a composite material containing a non-LiSiOlithium-containing compound; the composite material containing the non-LiSiOlithium-containing compound is fused with a second silicon source and then subjected to heat treatment to obtain a silicon-oxygen composite negative electrode material. The silicon-oxygen composite anode material provided by the present application is coated with LiSiO, solving the problem in the prior art of a negative electrode material producing strong alkaline or easily soluble by-products in water after pre-lithiation and affecting subsequent processing.",
  "title": "SILICON-OXYGEN COMPOSITE NEGATIVE ELECTRODE MATERIAL AND METHOD FOR PREPARATION THEREOF AND LITHIUM-ION BATTERY"
}