公开(公告)号：US20180197691A1

公开(公告)日：2018-07-12

申请号：US15740895

申请日：2016-05-04

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Jun Ho SONG ,  Young Jun KIM ,  Min Sik PARK

IPC: H01G11/50 ,  H01G11/06

CPC classification number: H01G11/50 ,  C01D15/00 ,  C01G51/00 ,  C01G51/42 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/40 ,  H01G11/06 ,  H01G11/32 ,  H01G11/46

Abstract: The present invention relates to a high power energy storage device additive and a lithium ion capacitor including the same, and more particularly, to: a preparation method of a new lithium ion capacitor additive which is added to a carbon-based material applied as a cathode active material of a lithium ion capacitor such that the new lithium ion capacitor additive is capable of improving capacity and energy density by electrochemically doping a lithium ion onto an anode; the lithium ion capacitor additive prepared thereby; and the lithium ion capacitor including the lithium ion capacitor additive.The lithium ion capacitor additive according to the present invention can release 3 mols or more of lithium ions even at a low voltage of 4.4 V or less, and the lithium ion capacitor including the lithium ion capacitor additive according to the present invention can electrochemically dope lithium onto the anode even without performing a pre-doping process using lithium metal as in the conventional lithium ion capacitor.