| abstract |
Core particles comprising active particles, first carbon-based particles, first amorphous carbon, and voids; And a shell layer coated on the surface of the core particle and comprising a second carbon-based particle and a second amorphous carbon, wherein the active particle comprises metal particles, metal-containing compound particles, or a combination thereof, The carbon-based particles and the second carbon-based particles may be the same or different and each include flaky graphite, carbon fine particles, or a combination thereof. The first amorphous carbon and the second amorphous carbon may be the same or different from each other, There is provided a negative electrode active material for a lithium secondary battery comprising carbon, hard carbon or a combination thereof, a method for producing the same, and a negative electrode and a lithium secondary battery comprising the same. |