| abstract |
The present invention provides a negative electrode active material for a lithium secondary battery, and a lithium secondary battery including the same, which significantly improves charge / discharge efficiency.n n n According to the present invention, a lithium secondary battery includes a graphite core capable of absorbing and releasing lithium, pores extending inwardly from an outer surface of the graphite core, metal nanoparticles dispersed in the pores, and filling the inside of the pores. It is characterized by containing hard carbon.n n n n Lithium secondary battery, negative electrode, negative electrode active material, metal nanoparticles, pores |