POSITIVE ACTIVE MATERIAL FOR LITHIUM ION CAPACITOR AND PREPARATION METHOD THEREOF

摘要

PURPOSE: An anodic active material for a lithium ion capacitor and a manufacturing method thereof are provided to electrochemically dope lithium to a carbon group cathode active material by adding an anode additive to a carbon group material. CONSTITUTION: An anodic active material for a lithium ion capacitor comprises a lithium compound metal oxide and a carbon group material marked as a predetermined chemical formula. Initial charge and discharge efficiency of the lithium compound metal oxide is less than 50%. The lithium compound metal oxide is the anodic active material for the lithium ion capacitor which is selected in a group consisting of Li2MoO3, Li2PtO3, and Li2IrO3. The lithium compound metal oxide has a rhombohedral crystalline structure. In the lithium compound metal oxide reversibly inserts a lithium ion in a voltage region of 0V-5V.