| abstract |
The present invention relates to a negative electrode active material material for a lithium secondary battery, and specifically, a negative electrode active material material made in an alloy state by adding lithium metal to silicon particles, graphite, silicon oxide, or other negative electrode active material in advance, and a method for manufacturing the same, and a method for manufacturing the same It relates to a manufactured lithium-ion battery. In addition, the moment when the negative electrode active material, which has been additionally treated with lithium metal into the inside and outside of the negative electrode material through heat treatment in a vacuum atmosphere, is taken out into the air, it reacts with moisture and oxygen in the air and does not generate a flame. |