SULFUR-DOPED SILICON NEGATIVE ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, LITHIUM SECONDARY BATTERY NEGATIVE ELECTRODE INCLUDING NEGATIVE ELECTRODE MATERIAL, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE

摘要

The present invention provides a sulfur-doped silicon negative electrode material which has an internal pore channel having an average width of 500 nm to 3 µm and has an average diameter of 1 µm to 5 µm, a preparation method thereof, a negative electrode for a lithium secondary battery comprising the same, and a lithium secondary battery comprising the negative electrode.