{
  "$type": "site.standard.document",
  "description": "Particulate silicon oxide having a Cu content of 100-20,000 ppm, an Fe content of 20-1,000 ppm, an Al content of up to 1,000 ppm, an average particle size of 0.1-30 µm, and a BET specific surface area of 0.5-30 m 2 /g is used as negative electrode material in constructing a nonaqueous electrolyte…",
  "path": "/patents/975493",
  "publishedAt": "2014-04-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B33/113",
    "SHINETSU CHEMICAL CO [JP]"
  ],
  "textContent": "Particulate silicon oxide having a Cu content of 100-20,000 ppm, an Fe content of 20-1,000 ppm, an Al content of up to 1,000 ppm, an average particle size of 0.1-30 µm, and a BET specific surface area of 0.5-30 m 2 /g is used as negative electrode material in constructing a nonaqueous electrolyte secondary battery. The secondary battery is improved in cycle performance while maintaining the high battery capacity and low volume expansion of silicon oxide.",
  "title": "SILICON OXIDE, MAKING METHOD, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR."
}