{
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  "description": "Disclosed is a method for preparing a micron silicon-carbon composite negative electrode material, the method comprising the following steps: subjecting micron silicon particles to a chemical vapor deposition reaction to obtain carbon-coated first micron silicon particles; dispersing the…",
  "path": "/patents/1404537",
  "publishedAt": "2025-11-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B32/198",
    "UNIV TIANJIN [CN]"
  ],
  "textContent": "Disclosed is a method for preparing a micron silicon-carbon composite negative electrode material, the method comprising the following steps: subjecting micron silicon particles to a chemical vapor deposition reaction to obtain carbon-coated first micron silicon particles; dispersing the carbon-coated first micron silicon particles in a first mixed solvent to obtain a dispersion; adding an alkali to the dispersion and then heating same to obtain carbon-coated second micron silicon particles; dispersing the carbon-coated second micron silicon particles and graphene oxide into a second mixed solvent, and performing a hydrothermal reaction to obtain a hydrogel; and heating the hydrogel to obtain the micron silicon-carbon composite negative electrode material. The micron silicon-carbon composite negative electrode material prepared by means of the method can not only efficiently buffer the swelling of internal micron-scale silicon particles, but can also withstand the pressure during an external compaction process. Disclosed are a micron silicon-carbon composite negative electrode material prepared by means of the method, a negative electrode plate, and a lithium ion battery.",
  "title": "MICRON SILICON-CARBON COMPOSITE NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, AND LITHIUM ION BATTERY"
}