SILICON OXIDE FOR NEGATIVE ELECTRODE MATERIAL OF NONAQUEOUS ELECTROLTYE SECONDARY CELL, METHOD FOR PRODUCING SAME, LITHIUM ION SECONDARY CELL, AND ELECTROCHEMICAL CAPACITOR

摘要

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.