| 摘要 |
PURPOSE: An active material for lithium secondary battery is provided to have excellent conductivity, thereby having excellent high power performance. CONSTITUTION: An active material(10) for lithium secondary battery comprises an active material core(12), and a graphite layer(14) formed in the core. The thickness of the graphite layer is 10 nm - 2micron. The thickness of the graphite layer is formed by graphene. The content of the graphite layer is 5weight% or less, on the basis of the total weight of the active material. The lithium secondary battery comprises a negative active material including a negative active material, a positive electrode active material including a positive electrode active material. Among the negative electrode material and the positive electrode active material, at least one is the active material. |
