Tera Technos Co., Ltd

Jin Gee Park

Jae Woo Lee

Jung Hoon Cheon

Sun Ho Choi

Sung Soo Kim

Sichen Du

The present invention relates to a silicon oxide preparation method and a preparation device thereof, and more particularly, to a silicon oxide preparation method capable of continuously preparing silicon oxide by a liquid phase-solid phase reaction by introducing a silicon-based molded body into silicon molten metal, and a preparation device thereof.

Device and method of preparing siox, and siox anode material

A negative electrode material for a secondary battery includes a matrix containing silicon oxide, a composite oxide of one or more doping elements selected from the group consisting of an alkali metal, an alkaline earth metal, and a post-transition metal, and silicon, or a mixture thereof; and silicon nanoparticles dispersed and embedded in the matrix; wherein a hardness and a Young's modulus measured by a nanoindentation test are 4.0 GPa or more and 40 GPa or more, respectively, and in an X-ray diffraction pattern using a CuKα ray, a ratio (A/A) of an area (A) of a first peak present in a region where a diffraction angleθ is 10° to 27.4° to an area (A) of a second peak present in a region where the diffraction angleθ is 28±0.5° is 0.8 to 6.

Negative electrode material for secondary battery

A negative electrode material for a secondary battery includes a matrix containing silicon oxide, a composite oxide of one or more doping elements selected from an alkali metal, an alkaline earth metal, and a post-transition metal, and silicon, or a mixture thereof; and silicon nanoparticles dispersed and embedded in the matrix.

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Daegu, South Korea

Jin Gee Park