SILICON OXIDE FOR NONAQUEOUS ELECTROLTYE SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, METHOD FOR MANUFACTURING THE SAME, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR

According to the present invention, there is provided a silicon oxide for a non-aqueous electrolyte secondary battery negative electrode material wherein the silicon oxide is a carbon-containing silicon oxide obtained by codeposition from a SiO gas and a carbon-containing gas, and the carbon-containing silicon oxide has a carbon content of 0.5 to 30%. As a result, it is possible to provide a silicon oxide which is capable of manufacturing a non-aqueous electrolyte secondary battery having excellent cycle characteristics and a high capacity in case of using as a negative electrode material, a method for manufacturing the same, and a lithium ion secondary battery and an electrochemical capacitor using the same.