| abstract |
An anode active material, according to the present invention, is an anode active material formed from silicon particles, and the anode active material includes 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 excellent lifespan wherein the lifespan is a problem when using the anode active material formed from silicon, and a lithium secondary battery including the same. |