Negative electrode active material, negative electrode including the same, and method for manufacturing the same

A negative electrode comprising:

• a negative electrode current collector;
• and
• a negative electrode active material layer on the negative electrode current collector and comprising a negative electrode active material,
• wherein the negative electrode active material comprises a core and a carbon coating layer on the core,
• wherein the core comprises:
• a porous support comprising a plurality of pores;
• and
• a silicon on the plurality of pores and a surface of the porous support, and
• wherein,
• the negative electrode active material further comprises meso pores, and
• a volume ratio of the meso pores of the negative electrode active material is 50% to 100% based on a total pore volume of the negative electrode active material.

A method, the method comprising:

• preparing a porous support comprising a plurality of pores;
• performing a vapor deposition process utilizing a silicon precursor on the porous support to form a silicon;
• and
• forming a carbon coating layer on the porous support having the silicon thereon, utilizing a carbon precursor,
• wherein,
• the plurality of pores comprises micro pores, and
• a volume ratio of the micro pores of the porous support is 50% to 100% based on a total pore volume of the porous support, and
• wherein the method is a method for manufacturing a negative electrode active material.