| abstract |
The present invention relates to a silicon oxide for a nonaqueous electrolyte secondary battery anode material, which is a carbon-containing silicon oxide obtained by co-precipitation of an SiO gas and a carbon-containing gas, wherein the carbon-containing silicon oxide has a carbon content of 0.5 to 30% It is a silicon oxide for secondary battery anode material. Thereby, there is provided a silicon oxide capable of producing a non-aqueous electrolyte secondary battery having excellent cycle characteristics and high battery capacity by being used as an anode material, a production method thereof, a lithium ion secondary battery and an electrochemical capacitor using the same. |