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

A sulfur-doped silicon negative electrode material, a preparation method for a sulfur-doped silicon negative electrode material, a negative electrode for a lithium secondary battery comprising the sulfur-doped silicon negative electrode material, and a lithium secondary battery comprising the negative electrode, wherein the sulfur-doped silicon negative electrode material has an internal pore channel having an average width of 500 nm to 3 μm and an average external diameter of 1 μm to 5 μm.