| abstract |
Wherein the core comprises a first composite particle in which silicon particles and carbon particles are bonded by amorphous carbon, fine graphite particles having an average particle size (D50) of not more than 2 占 퐉, and a core layer on the surface of the core 1 amorphous carbon, said shell layer comprising a second composite particle in which silicon particles and carbon particles are bonded by amorphous carbon, a flake graphite flake having an average particle size (D50) of more than 2 占 퐉, and a second amorphous carbon A negative electrode active material for a lithium secondary battery, a method for producing the same, and a lithium secondary battery comprising the same. |