公开(公告)号：US10014126B2

公开(公告)日：2018-07-03

申请号：US15121463

申请日：2015-02-26

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Jie Tang ,  Faxiang Qin ,  Luchang Qin

IPC: H01G11/50 ,  H01G11/36 ,  H01G11/86 ,  H01G11/06 ,  H01G11/62 ,  H01G11/52

CPC classification number: H01G11/86 ,  H01G11/06 ,  H01G11/36 ,  H01G11/50 ,  H01G11/52 ,  H01G11/62 ,  Y02E60/13

Abstract: As an object to provide a lithium-ion supercapacitor having a high energy density and a high power density, capable of being charged and discharged many times, and having a long product life, there is provided a lithium-ion supercapacitor using a graphene/CNT composite electrode, the lithium-ion supercapacitor including: an anode; a cathode that is arranged to be separated from the anode; and a lithium ion electrolytic solution that fills in a space between the anode and the cathode, wherein either or both of the cathode and the anode are formed by a graphene/CNT composite, and a CNT concentration in the graphene/CNT composite is 17 wt % or more and 33 wt % or less.