HIGH-CAPACITY ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY

摘要

Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the crystalline carbon layer comprises sheet-like carbon layer units, and the c-axis direction of the sheet-like carbon layer units is perpendicular to a tangent direction of the electrode active material particle. A secondary battery comprising the same electrode active material is also disclosed.