摘要 |
An anode active material, according to the present invention, is an anode active material formed from silicon particles, the anode active material including at least one silicon particle among silicon, a silicon oxide and a silicon alloy, wherein the outer shape of the silicon particle is a polyhedron. The present invention provides an electrode active material having high capacity, and also excellent lifespan, which may be difficult to achieve when using the anode active material formed from silicon, and a lithium secondary battery including the same. |