{
  "$type": "site.standard.document",
  "description": "The present invention is a negative electrode material for a secondary battery with a non-aqueous electrolyte comprising at least a silicon-silicon oxide composite and a carbon coating formed on a surface of the silicon-silicon oxide composite, wherein at least the silicon-silicon oxide composite…",
  "path": "/patents/1008940",
  "publishedAt": "2011-10-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C23C16/02",
    "SHINETSU CHEMICAL CO [JP]"
  ],
  "textContent": "The present invention is a negative electrode material for a secondary battery with a non-aqueous electrolyte comprising at least a silicon-silicon oxide composite and a carbon coating formed on a surface of the silicon-silicon oxide composite, wherein at least the silicon-silicon oxide composite is doped with lithium, and a ratio I(SiC)/I(Si) of a peak intensity I(SiC) attributable to SiC of 2¸=35. 8±0.2° to a peak intensity I(Si) attributable to Si of 2¸=28.4±0.2° satisfies a relation of I(SiC)/I(Si)¤0.03, when x-ray diffraction using Cu-K± ray. As a result, there is provided a negative electrode material for a secondary battery with a non-aqueous electrolyte that is superior in first efficiency and cycle durability to a conventional negative electrode material.",
  "title": "Negative electrode material for secondary battery with non-aqueous electrolyte, method for manufacturing negative electrode material for secondary battery with non-aqueous electrolyte, and lithium ion secondary battery"
}