Title:
ELECTROCHEMICAL CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2020/179585
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a novel electrochemical capacitor in which a cathode and an anode are disposed so as to be mutually separated within an electrolyte, wherein an MXene is used as an electrode active substance of the cathode and a sufficiently high energy density can be achieved. Provided is an electrochemical capacitor wherein: a cathode includes a plurality of layers as electrode active substance; each layer is represented by the formula Mn+1Xn (in the formula, M is at least one group 3, 4, 5, 6, or 7 metal, X is a carbon atom, a nitrogen atom, or a combination thereof, and n is 1, 2, or 3); each X includes a crystal lattice located within an octahedral array of M; at least one of two mutually facing surfaces of the layers includes a layer-like material with at least one modification or terminus T chosen from the group consisting of a hydroxyl group, a fluorine atom, an oxygen atom, and a hydrogen atom; an anode includes a π-conjugated electrically conductive polymer material as an electrode active substance; and the electrolyte includes ions that function as a dopant for the electrically conductive polymer material.
Inventors:
OKAMURA ICHITARO (JP)
KAMISUKI HIROYUKI (JP)
HONDA YUICHI (JP)
KAMISUKI HIROYUKI (JP)
HONDA YUICHI (JP)
Application Number:
PCT/JP2020/007852
Publication Date:
September 10, 2020
Filing Date:
February 26, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01G11/30; H01G11/48; H01G11/60; H01G11/62
Domestic Patent References:
| WO2018124042A1 | 2018-07-05 |
Foreign References:
| JP2017076739A | 2017-04-20 | |||
| JP2014123641A | 2014-07-03 | |||
| JP2008010682A | 2008-01-17 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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