{
  "$type": "site.standard.document",
  "description": "There is provided a negative electrode for a nonaqueous electrolyte secondary battery in which when a battery is formed, the energy density is high, and moreover, the decrease in charge and discharge capacity is small even if charge and discharge are repeated. By using silicon oxide particles…",
  "path": "/patents/1009282",
  "publishedAt": "2011-09-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/052",
    "NEC ENERGY DEVICES INC [JP]"
  ],
  "textContent": "There is provided a negative electrode for a nonaqueous electrolyte secondary battery in which when a battery is formed, the energy density is high, and moreover, the decrease in charge and discharge capacity is small even if charge and discharge are repeated. By using silicon oxide particles having a particle diameter in a particular range as a starting raw material, and heating these particles in the range of 850°C to 1050°C, Si microcrystals are deposited on the surfaces of the particles. Then, by performing doping of Li, a structure comprising a plurality of protrusions having height and cross-sectional area in a particular range is formed on the surfaces. The average value of the height of the above protrusions is 2% to 19% of the average particle diameter of the above lithium-containing silicon oxide particles. By using the lithium-containing silicon oxide particles obtained by the above means as a negative electrode active material, a negative electrode for a nonaqueous electrolyte secondary battery is fabricated.",
  "title": "NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY CELL AND NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY CELL USING THE SAME, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY CELL"
}