WO2023223635A1 - 膜および電極 - Google Patents

膜および電極 Download PDF

Info

Publication number
WO2023223635A1
WO2023223635A1 PCT/JP2023/008383 JP2023008383W WO2023223635A1 WO 2023223635 A1 WO2023223635 A1 WO 2023223635A1 JP 2023008383 W JP2023008383 W JP 2023008383W WO 2023223635 A1 WO2023223635 A1 WO 2023223635A1
Authority
WO
WIPO (PCT)
Prior art keywords
polymer
mxene
film
particles
functional group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/008383
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宏介 杉浦
未伽 藤脇
淑子 島▲崎▼
武志 部田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP2024521567A priority Critical patent/JP7786571B2/ja
Priority to EP23807251.6A priority patent/EP4503059A4/en
Priority to CN202380038615.0A priority patent/CN119137685A/zh
Publication of WO2023223635A1 publication Critical patent/WO2023223635A1/ja
Priority to US18/944,966 priority patent/US12473424B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A61B5/268—Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/16—Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/38—Carbon pastes or blends; Binders or additives therein
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/48—Conductive polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/46—Alloys based on magnesium or aluminium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/14—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/001—Conductive additives

Definitions

  • the present disclosure relates to a membrane and an electrode using the membrane.
  • MXene has attracted attention as a new material with electrical conductivity.
  • MXene is a type of so-called two-dimensional material, and more specifically, as described below, is a two-dimensional material (layered material) having the form of one or more layers.
  • MXene has the form of particles (which may include powders, flakes, nanosheets, etc.) of such two-dimensional materials (layered materials).
  • composite materials of MXene and polymers are known.
  • Patent Document 1 by applying the polyurethane foaming principle, a mixture containing MXene and polyisocyanate and a mixture containing other materials (other MXene, graphene, carbon nanotubes, oxide particles, etc.) and polyether are disclosed. It is described that an MXene composite foam, in which MXene and the other material are composited in polyurethane foam, is obtained by reacting the liquid in a mold.
  • a film containing MXene and a polymer can exhibit electrical conductivity, and the use of such a conductive film as an electrode is being considered). Electrodes, such as biological signal sensing electrodes, are required to have sufficient strength and impedance as low as possible. However, the MXene composite foam described in Patent Document 1 has a drawback of low strength. Further, Patent Document 1 does not mention anything about the impedance of the MXene composite foam.
  • An object of the present disclosure is to provide a novel film containing MXene and a polymer, which has high strength and low impedance.
  • a further object of the present disclosure is to provide an electrode using such a membrane.
  • a membrane includes particles of a two-dimensional material comprising one or more layers and a polymer, the membrane comprising:
  • the layer has the following formula: M m X n (wherein M is at least one group 3, 4, 5, 6, 7 metal, X is a carbon atom, a nitrogen atom or a combination thereof, n is 1 or more and 4 or less, m is greater than n and less than or equal to 5)
  • a membrane is provided, in which the ratio of the polymer to the total of the particles of the two-dimensional material and the polymer is 5% by volume or more and 70% by volume or less.
  • an electrode that includes the above membrane.
  • a novel high-strength, low-impedance film that includes particles of a predetermined two-dimensional material (also referred to herein as "MXene") and a polymer. Further, according to the present disclosure, an electrode using such a film is provided.
  • FIG. 1 is a schematic cross-sectional view showing a membrane in one embodiment of the present disclosure.
  • FIG. 3 is a schematic cross-sectional view showing particles of a two-dimensional material (MXene) that can be used in one embodiment of the present disclosure, where (a) shows a single-layer MXene particle and (b) shows a multi-layer (illustratively two-layer) particle. layer) shows MXene particles.
  • MXene two-dimensional material
  • a membrane 20 of the present embodiment includes particles 10 of a predetermined two-dimensional material (layered material) and a polymer having an anionic functional group and a cationic functional group (hereinafter referred to as "ampholyte" in the present disclosure).
  • the ratio of the amphoteric polymer 11 to the total of the particles 10 of the predetermined two-dimensional material and the amphoteric polymer 11 in the membrane 20 is 5% by volume or more and 70% by volume or less.
  • the membrane 20 of this embodiment will be explained in detail through its manufacturing method. Unless otherwise specified, the explanations regarding the method for manufacturing the membrane may also apply to the membrane itself.
  • the method for manufacturing the membrane of this embodiment is as follows: (a) preparing a liquid composition containing particles of a predetermined two-dimensional material (layered material), a polymer having an anionic functional group and a cationic functional group, and a liquid medium; The method includes forming a precursor film on a substrate using a composition and at least drying the precursor film to obtain a film.
  • MXene particles particles of a predetermined two-dimensional material (layered material) are prepared.
  • the predetermined two-dimensional material that can be used in this embodiment is MXene, which is defined as follows: A two-dimensional material (layered material) comprising one or more layers, the layer having the following formula: M m X n (wherein M is at least one group 3, 4, 5, 6, 7 metal, so-called early transition metals such as Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and may contain at least one member selected from the group consisting of Mn; X is a carbon atom, a nitrogen atom or a combination thereof, n is 1 or more and 4 or less, m is greater than n and less than or equal to 5) (the layer body may have a crystal lattice in which each X is located in an octahedral array of M); A two-dimensional structure containing a modification or termination T (T is at least one selected from the
  • M is preferably at least one selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and Mn; More preferably, it is at least one selected from the group consisting of:
  • M m X n is Ti2C , Ti3C2 , Ti3 ( CN ) , ( Cr2Ti ) C2 , ( Mo2Ti ) C2 , ( Mo2Ti2 ) C3 , and ( Mo2.7V1.3 ) C3 .
  • M m X n may be Ti 3 C 2 .
  • MXene particles are produced by selectively etching (removal and, in some cases, layer separation) A atoms (and in some cases, part of M atoms) from the MAX phase that is the raw material. It can be synthesized by
  • the method for producing a film of the present embodiment may further include a step of obtaining MXene particles before step (a), and the step of obtaining MXene particles includes etching the MAX phase as a raw material with an etching solution. Including etching (etching process).
  • the MAX phase (hereinafter also simply referred to as "MAX raw material"), which is a raw material, has the following formula: M m AX n (In the formula, M, is Group IIIA and Group IVA, and more specifically may contain at least one member selected from the group consisting of Al, Ga, In, Tl, Si, Ge, Sn, Pb, P, As, S and Cd; (preferably Al) It is expressed as
  • the MAX phase is a crystal in which a layer composed of A atoms is located between two layers represented by M m X n (which may have a crystal lattice in which each Has a structure.
  • M m X n layers typically, one layer of X atoms is arranged between each of the n+1 layers of M atoms (these are also collectively referred to as "M m X n layers"), It has a repeating unit in which a layer of A atoms (“A atomic layer”) is arranged as the next layer of the n+1-th layer of M atoms, but is not limited thereto.
  • a atomic layer By selectively etching (removing and possibly layer separating) A atoms (and possibly some M atoms) from the MAX phase, the A atomic layer (and possibly some M atoms) is removed.
  • an etching solution usually, but not limited to, an aqueous solution containing hydrofluoric acid
  • the etchant may contain any suitable acid (HF, HCl, HBr, HI, sulfuric acid, phosphoric acid, nitric acid, etc.).
  • the MAX raw material may be etched with an etching solution containing hydrofluoric acid.
  • hydrofluoric acid hydrofluoric acid
  • Etching treatment using an etching solution containing hydrofluoric acid may also be referred to as an ACID method.
  • the etching solution may further contain other acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, nitric acid, sulfuric acid, acetic acid, formic acid, hypochlorous acid, and fluorosulfonic acid. good.
  • the MAX raw material may be etched with an etching solution containing fluoride and acid (however, excluding hydrofluoric acid).
  • an etching solution containing fluoride and acid By using fluoride and acid (excluding hydrofluoric acid) in the etching solution, hydrofluoric acid (HF) is present in situ in the etching solution.
  • Etching treatment using an etching solution containing fluoride and acid (excluding hydrofluoric acid) may also be referred to as MILD method.
  • fluoride metal fluorides are used, such as lithium fluoride, sodium fluoride, potassium fluoride, etc., in particular lithium fluoride.
  • the MAX raw material can be etched and the metal (metal ion) can be intercalated into the MXene particles.
  • acids excluding hydrofluoric acid
  • hydrochloric acid for example, hydrochloric acid, hydrobromic acid, hydroiodic acid, nitric acid, sulfuric acid, acetic acid, formic acid, hypochlorous acid, fluorosulfonic acid, etc.
  • hydrochloric acid may be used, and in particular hydrochloric acid may be used.
  • Ammonium difluoride may be used as the fluoride and acid (excluding hydrofluoric acid).
  • the step of obtaining MXene particles may include any appropriate treatment after the etching treatment. Examples of such treatments include washing, intercalation, delamination, and the like. Washing may be applied with any suitable washing medium, such as water, dilute hydrochloric acid, etc., followed by centrifugation/decantation. Intercalation can be intercalation of metals (metal ions) into the MXene particles. Delamination is the process of promoting delamination of MXene particles (changing multilayer MXene particles into MXene particles with fewer layers, e.g., single-layer MXene particles) by applying an impact such as vibration and/or ultrasound, for example. It can be. For example, the delamination process can be performed for a predetermined period of time using a handshake, an automatic shaker, a mechanical shaker, a vortex mixer, a homogenizer, an ultrasonic bath, or the like.
  • the MXene particles may contain a relatively small amount of residual A atoms, for example, 10% by mass or less relative to the original A atoms.
  • the residual amount of A atoms may be preferably 8% by mass or less, more preferably 6% by mass or less.
  • the residual amount of A atoms exceeds 10% by mass, there may be cases where there is no problem depending on the purpose of the film and the conditions of use.
  • the MXene particles 10 synthesized in this way are, as schematically shown in FIG. ) and two layers of MXene particles 10b in FIG. 2(b), but are not limited to these examples). More specifically, the MXene layers 7a and 7b have layer main bodies (M m X n layers ) 1a and 1b represented by M m modification or termination T 3a, 5a, 3b, 5b present on at least one of the two surfaces facing each other). Therefore, the MXene layers 7a and 7b are also expressed as "M m X n T s ", where s is an arbitrary number.
  • the MXene particles 10 may have multiple MXene layers, even if the MXene layers are individually separated and exist in one layer (single-layer structure shown in FIG. 2(a), so-called single-layer MXene particles 10a). may be a laminate (a multilayer structure shown in FIG. 2(b), so-called multilayer MXene particles 10b) in which the particles are stacked at a distance from each other, or a mixture thereof.
  • the MXene particles 10 may be particles (which may also be referred to as powders or flakes) as an aggregate composed of monolayer MXene particles 10a and/or multilayer MXene particles 10b. In the case of multilayered MXene particles, two adjacent MXene layers (eg, 7a and 7b) do not necessarily have to be completely separated and may be partially in contact.
  • each MXene layer is, for example, 0.8 nm or more and 5 nm or less, particularly 0.8 nm or more and 3 nm or less (mainly (which may vary depending on the number of M atomic layers contained in each layer), the maximum dimension in a plane parallel to the layer (two-dimensional sheet plane) (which may correspond to the "in-plane dimension" of the particle) is, for example, 0.1 ⁇ m.
  • the thickness is preferably 1 ⁇ m or more, for example 200 ⁇ m or less, particularly 40 ⁇ m or less.
  • the interlayer distance (or void size, indicated by ⁇ d in FIG. 2(b)) within each laminate particle is not particularly limited, and is, for example, 0. .8 nm or more and less than 10 nm (that is, 8 ⁇ or more and less than 100 ⁇ ), particularly 0.8 nm or more and 5 nm or less, more particularly about 1 nm, and the maximum dimension in a plane perpendicular to the stacking direction (two-dimensional sheet surface) (the "plane of the particle").
  • the inner dimension) is, for example, 0.1 ⁇ m or more, particularly 1 ⁇ m or more, for example 100 ⁇ m or less, particularly 20 ⁇ m or less.
  • the total number of layers in the MXene particle may be 1 or 2 or more, but is, for example, 1 or more and 20 or less, and the thickness in the stacking direction (which may correspond to the "thickness" of the particle) is, for example, 0.8 nm or more. It is 20 nm or less.
  • the MXene particles When the MXene particles are laminate (multilayer MXene) particles, they may be MXene with a small number of layers.
  • the term "the number of layers is small” means, for example, that the number of stacked MXene layers is 6 or less. Further, the thickness of the multilayer MXene with a small number of layers in the stacking direction may be less than 10 nm. In this specification, this "multilayer MXene with a small number of layers" is also referred to as "small layer MXene.”
  • the MXene particles may be particles (which may also be referred to as nanosheets) that are mostly composed of monolayer MXene and/or small-layer MXene.
  • single-layer MXene and small-layer MXene may be collectively referred to as "single-layer/small-layer MXene.”
  • each dimension mentioned above is a number average dimension (for example, a number average of at least 40) based on a photograph of a scanning electron microscope (SEM), a transmission electron microscope (TEM), or an atomic force microscope (AFM), or an X-ray It can be obtained as a distance in real space calculated from the position of the (002) plane in reciprocal lattice space measured by the diffraction (XRD) method.
  • SEM scanning electron microscope
  • TEM transmission electron microscope
  • AFM atomic force microscope
  • X-ray X-ray It can be obtained as a distance in real space calculated from the position of the (002) plane in reciprocal lattice space measured by the diffraction (XRD) method.
  • an "ampholytic polymer” is a polymer having an anionic functional group and a cationic functional group.
  • Polymers may be composed of one or more monomer units.
  • a monomer unit means a structural unit derived from a monomer that is a raw material for a polymer.
  • the anionic functional group and the cationic functional group may be present in the same monomer unit or in separate monomer units.
  • Anionic functional group means a moiety that exhibits anionic properties (bears a negative charge) in a liquid medium.
  • the anionic functional group is selected from the group consisting of, for example, a carboxylic acid group, a carboxylic acid group, a sulfonic acid group, a sulfonic acid group, a phosphate group, and a phosphate group (which may be a moiety of any of these). It can be at least one type.
  • One or more types of anionic functional groups may be present in the amphoteric polymer.
  • a cationic functional group means a moiety that exhibits cationic properties (bears a positive charge) in a liquid medium.
  • the cationic functional group may be, for example, at least one selected from the group consisting of amines, phosphoniums, and salts thereof (which may be moieties of any of these); more specifically, the cationic functional group may be a primary Amines, secondary amines, tertiary amines, acid salts thereof, and quaternary ammonium salts, and primary phosphoniums, secondary phosphoniums, tertiary phosphoniums, acid salts thereof, and quaternary It may be at least one selected from the group consisting of phosphonium salts.
  • One or more types of cationic functional groups may be present in the amphoteric polymer.
  • the amphoteric polymer may include a first monomer unit having an anionic functional group and a cationic functional group.
  • an anionic functional group and a cationic functional group may be present in the first monomer unit.
  • the first monomer unit may have a phosphorylcholine group.
  • amphoteric polymer may further include a second monomer unit having another anionic functional group.
  • the amphoteric polymer may include a third monomer unit having an anionic functional group and a fourth monomer unit having a cationic functional group.
  • an anionic functional group exists and no cationic functional group exists in the third monomer unit
  • a cationic functional group exists and no anionic functional group exists in the fourth monomer unit. You don't have to.
  • the bond between the monomer units constituting the amphoteric polymer is not particularly limited, and may be any suitable bond.
  • the amphoteric polymer may be an acrylic polymer.
  • Acrylic polymer means a polymer containing as a main component monomer units derived from (meth)acryloyl groups.
  • (Meth)acryloyl group” means an acryloyl group and/or a methacryloyl group.
  • the main component means a component that accounts for 50% by mass or more of the polymer.
  • a monomer unit derived from a (meth)acryloyl group has the formula: -CH 2 -C(-R 1 )(-COOR 2 )- (wherein R 1 is a hydrogen atom or a methyl group, and R 2 may be represented by an organic group having an anionic functional group and/or a cationic functional group (which may optionally be a metal cation, a nonionic organic group, etc.).
  • Lipidure®-HM contains as a polymer component a homopolymer of a first monomer unit having a phosphorylcholine group
  • Lipidure®-A contains a homopolymer of a first monomer unit having a phosphorylcholine group and a carboxylic acid group.
  • the polymer component includes a copolymer of a second monomer unit having the following and another nonionic monomer unit.
  • additives include, but are not limited to, liquid media, surfactants, curing agents and/or crosslinking agents, viscosity modifiers (eg, thickeners), and the like.
  • Liquid composition A liquid composition containing the MXene particles and amphoteric polymer prepared above in a liquid medium is prepared.
  • the liquid medium may be either an aqueous medium or an organic medium, but an aqueous medium is preferable.
  • the aqueous medium is typically water, and may optionally contain relatively small amounts (e.g., 30% by weight or less, preferably 20% by weight or less, based on the total aqueous medium) of other liquid substances in addition to water. Good too.
  • the organic medium is not particularly limited, and may be, for example, a protic solvent represented by alcohol, an aprotic solvent, or a mixed solvent of two or more thereof.
  • the obtained liquid composition can disperse the MXene particles well in the liquid medium due to the amphoteric polymer. As will be described later, by using a liquid composition with improved dispersibility of MXene particles, high strength and low impedance can be achieved in the final film.
  • the ratio of the amphoteric polymer to the total of the MXene particles and the amphoteric polymer is from 5% by volume to 70% by volume, and within this range, high strength and low impedance effects can be achieved.
  • the above ratio in the liquid composition is considered to be substantially the same as the ratio of the amphoteric polymer 11 to the total of the MXene particles 10 and the amphoteric polymer 11 in the finally obtained membrane 20.
  • the liquid composition may be in the form of a slurry or a paste depending on the total solid concentration containing the MXene particles and the amphoteric polymer.
  • a precursor film is formed on a substrate using the liquid composition prepared above, and the precursor film is at least dried to obtain a film (more specifically, a conductive film).
  • the base material is not particularly limited, and may be made of any suitable material and may have any suitable structure and/or form.
  • the region on the surface of the base material on which the precursor film is formed may or may not be flat, and may have a surface shape such as a curved surface, an uneven shape, or an irregular shape.
  • the base material may typically be a substrate, a film, etc., but is not limited thereto.
  • the material of the base material is not particularly limited.
  • the base material may be made of a conductive material. Examples of the conductive material include at least one of metal materials such as gold, silver, copper, platinum, nickel, titanium, tin, iron, zinc, magnesium, aluminum, tungsten, and molybdenum, and a conductive polymer. It will be done.
  • the base material may have a conductive film, such as a metal film, other than the film according to this embodiment, on the contact surface with the film (conductive film) according to this embodiment.
  • the base material may be made of an organic material.
  • the organic material include flexible organic materials, such as thermoplastic polyurethane elastomer (TPU), PET film, polyimide film, and liquid crystal polymer film.
  • the base material surface (the surface on which the precursor film is formed) should have a functional group capable of hydrogen bonding with the MXene particles (e.g. OH group, etc.) is preferable.
  • a functional group capable of hydrogen bonding with the MXene particles e.g. OH group, etc.
  • Such functional groups may be inherent in the base material or may be developed through pretreatment (eg, plasma treatment). Pretreatment may be performed for the purpose of cleaning, hydrophilization, etc.
  • the membrane of this embodiment may be in the form of a self-supporting membrane that is finally separated from the base material. In this case, adhesion between the membrane and the substrate is not required.
  • the method for forming the precursor film on the substrate is not particularly limited, but for example, the precursor film may be formed by spraying a liquid composition onto the substrate.
  • a porous member e.g., a membrane filter
  • the spray can be used to orient the MXene particles on the substrate (aligned so that the two-dimensional sheet surface of the MXene particles is approximately parallel (for example, within ⁇ 20°) to the surface of the substrate). This allows the final membrane to be made denser than a filtration membrane, and thus has higher environmental resistance (moisture resistance).
  • any other methods such as bar coating, spin coating, and dipping can be applied.
  • amphoteric polymer can provide a liquid composition with good dispersibility of MXene particles, improve the strength of the final film, and reduce impedance is as follows. It can be considered as follows.
  • MXene particles have a surface of the layer body represented by M m ), and there are charged sites due to this configuration.
  • the two-dimensional sheet plane plane parallel to the layer of MXene particles that occupies most of the surface of the MXene particle is usually negatively charged.
  • MXene particles are mixed with a liquid medium (typically water)
  • the MXene particles can be dispersed in the liquid medium due to repulsion of negative charges, but some of them are attracted to each other due to intermolecular force or hydrogen bond force. may clump together. For this reason, a film produced using a liquid composition in which MXene particles alone are mixed in a liquid medium has low strength.
  • an amphoteric polymer (a polymer having an anionic functional group and a cationic functional group) is used in a predetermined ratio.
  • an amphoteric polymer By using an amphoteric polymer, a dispersion mechanism based on electrostatic repulsion is well developed, and a good dispersion state can be maintained while the MXene particles and the amphoteric polymer are mixed with each other in a liquid medium. More specifically, while the cationic functional group portion of the amphoteric polymer adsorbs the negatively charged MXene particles, the anionic functional group portions of the amphoteric polymer electrostatically repel each other.
  • the MXene particles can be favorably balanced, and aggregation of the MXene particles can be effectively prevented by the steric hindrance of the amphoteric polymer, allowing the MXene particles to be dispersed well.
  • the MXene particles are well dispersed in the amphoteric polymer. It becomes possible to achieve both strength and low impedance.
  • the ratio of the amphoteric polymer 11 to the total of the MXene particles 10 and the amphoteric polymer 11 is 5% by volume or more and 70% by volume or less, similar to the ratio in the liquid composition used. Within this range, high strength and low impedance effects can be achieved.
  • the strength of the film can be judged, for example, by the presence or absence of cohesive failure.
  • a film made of MXene single material easily coagulates and peels off by tape peeling (based on the cross-cut method specified in JIS K5600-5-6:1999).
  • the film of this embodiment contains MXene particles and an amphoteric polymer in a predetermined ratio, agglomeration and peeling can be prevented and high film strength can be obtained.
  • the film is made of a composite material containing MXene particles and a polymer, it can be determined that the impedance is low if the impedance is equal to or lower than that of a film made of a single MXene material (for example, Reference Example 1 described later). . According to the measurement conditions shown in Examples below, it is preferably 340 Ohm or less, more preferably 330 Ohm or less, at 10 Hz, for example.
  • the ratio of anionic functional groups to cationic functional groups in the amphoteric polymer 11 is not particularly limited.
  • the amphoteric polymer 11 as a whole is preferably neutral or anionic without being too cationic.
  • the amphoteric polymer 11 is preferably hydrophilic as a whole.
  • the film 20 of this embodiment is a conductive film and can be used for any appropriate purpose.
  • it can be used in applications requiring electrical conductivity, such as electrodes and electromagnetic shielding (EMI shielding) in any suitable electrical device.
  • EMI shielding electromagnetic shielding
  • the electrode is not particularly limited, and may be, for example, a biological signal sensing electrode, a capacitor electrode, a battery electrode, a sensor electrode, an antenna electrode, an electrical stimulation electrode, or the like.
  • a biological signal sensing electrode a capacitor electrode, a battery electrode, a sensor electrode, an antenna electrode, an electrical stimulation electrode, or the like.
  • the biological signal sensing electrode is an electrode for sensing (obtaining) biological signals.
  • the biosignal sensing electrode may be, for example, an electrode for measuring EEG (electroencephalogram), ECG (electrocardiogram), EMG (electromyogram), or EIT (electrical impedance tomography), but is not limited thereto.
  • the capacitor may be an electrochemical capacitor.
  • An electrochemical capacitor is a capacitor that utilizes the capacitance developed due to a physicochemical reaction between an electrode (electrode active material) and ions in an electrolytic solution (electrolyte ions), and is a device that stores electrical energy (electrical storage device). device).
  • the battery may be a chemical cell that can be repeatedly charged and discharged.
  • the battery can be, for example, but not limited to, a lithium ion battery, a magnesium ion battery, a lithium sulfur battery, a sodium ion battery, etc.
  • a sensor electrode is an electrode for detecting a target substance, condition, abnormality, etc.
  • the sensor may be, for example, a gas sensor, a biosensor (a chemical sensor that uses a molecular recognition mechanism of biological origin), but is not limited to these.
  • the antenna electrode is an electrode for radiating electromagnetic waves into space and/or receiving electromagnetic waves in space.
  • An electrical stimulation electrode is an electrode for applying electrical stimulation to a living body.
  • Such electrical stimulation can be applied to a living body, particularly to living tissues such as the spinal cord, brain, nerve tissue, muscle tissue, etc., but is not limited thereto.
  • an electromagnetic shield with a high shielding rate (EMI shielding property) can be obtained.
  • the membrane in one embodiment of the present disclosure has been described above in detail, the present disclosure can be modified in various ways. Note that the membrane of the present disclosure may be manufactured by a method different from the manufacturing method in the embodiments described above.
  • Example 1 Preparation of particles of layered material: (1) Preparation of precursor (MAX), (2) Etching of precursor, (3) Cleaning after etching, (4) Intercalation of Li, (5) ) Delamination was carried out sequentially to obtain MXene particles first.
  • precursor (MAX) TiC powder, Ti powder, and Al powder (all manufactured by Kojundo Kagaku Kenkyusho Co., Ltd.) were charged in a molar ratio of 2:1:1 into a ball mill containing zirconia balls. and mixed for 24 hours. The obtained mixed powder was fired at 1350° C. for 2 hours in an Ar atmosphere. The fired body thus obtained (block-shaped MAX) was ground with an end mill to a maximum size of 40 ⁇ m or less. Thereby, 2 Ti 3 AlC particles were obtained as a precursor (powdered MAX).
  • Li intercalation The Ti 3 C 2 T s -water medium clay prepared by the above method was treated at 20°C or higher and 25°C or lower using LiCl as the Li-containing compound according to the following Li intercalation conditions. Li intercalation was performed by stirring for 12 hours.
  • the detailed conditions for Li intercalation are as follows. (Li intercalation conditions) ⁇ Ti 3 C 2 T s - Water medium clay (MXene after washing): Solid content 0.75 g ⁇ LiCl: 0.75g ⁇ Intercalation container: 100mL Eyeboy ⁇ Temperature: 20°C or higher and 25°C or lower (room temperature) ⁇ Time: 12 hours ⁇ Stirrer rotation speed: 800 rpm
  • this supernatant liquid was centrifuged using a centrifuge at 4300G for 2 hours, and then the supernatant liquid was discarded, and MXene clay containing monolayer and small layer MXene was obtained as the remaining precipitate. Ta.
  • the concentration of MXene in the mixture will be 1.5% by mass, and the ratio of polymer to the total of MXene (MXene particles) and polymer in the dry film will be the value of "polymer ratio" shown in Table 2.
  • the amounts of P1 to P5 and pure water added were adjusted as follows. Thereafter, the mixture was stirred in a shaker for 15 minutes to obtain a slurry of MXene/polymer composite material as a liquid composition.
  • membrane samples were prepared in the following order.
  • Impedance Impedance was measured as follows. (a) Remove the polyimide substrate from the film sample prepared on the polyimide substrate in step 3 above to obtain a free-standing film, use this free-standing film as the working electrode, a platinum electrode as the counter electrode, and a silver-silver chloride electrode as the reference electrode. I assembled a beaker cell. The size of the working electrode was 1.5 mm in diameter, and the size of the counter electrode was larger than the size of the working electrode. (b) The measurement conditions were a frequency range of 0.1 Hz to 10 5 Hz, a voltage of 10 mVrms relative to the open circuit voltage, a number of plots in the entire measurement frequency range of 61 points, and a number of N per plot of 1.
  • Measurements were performed in potentiostat mode with a setting of ⁇ 10.
  • the device used was VMP-300 high performance electrochemical measurement system (16ch, advanced model) manufactured by Bio-Logic Science Instruments. Table 2 shows the impedance at 10 Hz as the measurement results.
  • Examples 1 to 5 which are membrane samples made by mixing MXene particles with an amphoteric polymer at a polymer ratio of 5 to 70% by volume
  • Reference Examples which are membrane samples made of only MXene particles (no polymer)
  • An impedance lower than 1 was obtained and high film strength was exhibited.
  • Comparative Example 1 which is a membrane sample formed by mixing MXene particles with an amphoteric polymer at a polymer ratio of 75% by volume
  • the impedance was significantly higher than that of Reference Example 1, although the membrane strength was high. It is understood that the higher the proportion of polymer in the film, the greater the interlayer distance d 002 of MXene.
  • the membrane of the present disclosure can be utilized in any suitable application, for example, preferably used as an electrode, particularly a biological signal sensing electrode.
  • the layer has the following formula: M m X n (wherein M is at least one group 3, 4, 5, 6, 7 metal, X is a carbon atom, a nitrogen atom or a combination thereof, n is 1 or more and 4 or less, m is greater than n and less than or equal to 5)
  • the ratio of the polymer to the total of the particles of the two-dimensional material and the polymer is 5% by volume or more and 70% by volume or less.
  • ⁇ 2> The membrane according to ⁇ 1>, wherein the polymer includes a first monomer unit having the anionic functional group and the cationic functional group.
  • ⁇ 3> The membrane according to ⁇ 2>, wherein the first monomer unit has a phosphorylcholine group.
  • ⁇ 4> The membrane according to ⁇ 2> or ⁇ 3>, wherein the polymer further includes a second monomer unit having another anionic functional group.
  • ⁇ 5> The membrane according to any one of ⁇ 1> to ⁇ 4>, wherein the polymer includes a third monomer unit having the anionic functional group and a fourth monomer unit having the cationic functional group.
  • ⁇ 6> An electrode comprising the film according to any one of ⁇ 1> to ⁇ 5>.
  • ⁇ 7> The electrode according to ⁇ 6>, which is a biological signal sensing electrode.
  • ⁇ 8> The electrode according to ⁇ 6>, which is an electrical stimulation electrode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Laminated Bodies (AREA)
PCT/JP2023/008383 2022-05-18 2023-03-06 膜および電極 Ceased WO2023223635A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2024521567A JP7786571B2 (ja) 2022-05-18 2023-03-06 膜および電極
EP23807251.6A EP4503059A4 (en) 2022-05-18 2023-03-06 Film and electrode
CN202380038615.0A CN119137685A (zh) 2022-05-18 2023-03-06 膜和电极
US18/944,966 US12473424B2 (en) 2022-05-18 2024-11-12 Film and electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-081565 2022-05-18
JP2022081565 2022-05-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/944,966 Continuation US12473424B2 (en) 2022-05-18 2024-11-12 Film and electrode

Publications (1)

Publication Number Publication Date
WO2023223635A1 true WO2023223635A1 (ja) 2023-11-23

Family

ID=88835272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/008383 Ceased WO2023223635A1 (ja) 2022-05-18 2023-03-06 膜および電極

Country Status (5)

Country Link
US (1) US12473424B2 (https=)
EP (1) EP4503059A4 (https=)
JP (1) JP7786571B2 (https=)
CN (1) CN119137685A (https=)
WO (1) WO2023223635A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112300363A (zh) 2020-11-17 2021-02-02 吉林省一一科技有限公司 一种基于聚氨酯发泡原理构筑MXene复合泡沫及其制备方法
WO2022030444A1 (ja) * 2020-08-03 2022-02-10 株式会社村田製作所 導電性複合材料
WO2022050317A1 (ja) * 2020-09-02 2022-03-10 株式会社村田製作所 導電性膜およびその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7114226B2 (ja) * 2017-06-15 2022-08-08 スターライト工業株式会社 導電性塗工液組成物およびその塗工方法
WO2021025026A1 (ja) * 2019-08-05 2021-02-11 株式会社村田製作所 導電性材料、導電性フィルム、電気化学キャパシタ、導電性材料の製造方法および導電性フィルムの製造方法
CN115885012B (zh) * 2020-08-03 2025-08-08 株式会社村田制作所 生物体信号感测电极
KR102377769B1 (ko) * 2020-09-24 2022-03-23 (주)윈스 세라믹 조성물을 이용한 도장방법
WO2022221625A2 (en) * 2021-04-15 2022-10-20 Giner, Inc. Electrochemical devices utilizing mxene-polymer composites

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022030444A1 (ja) * 2020-08-03 2022-02-10 株式会社村田製作所 導電性複合材料
WO2022050317A1 (ja) * 2020-09-02 2022-03-10 株式会社村田製作所 導電性膜およびその製造方法
CN112300363A (zh) 2020-11-17 2021-02-02 吉林省一一科技有限公司 一种基于聚氨酯发泡原理构筑MXene复合泡沫及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4503059A4

Also Published As

Publication number Publication date
CN119137685A (zh) 2024-12-13
EP4503059A4 (en) 2025-07-30
US12473424B2 (en) 2025-11-18
JP7786571B2 (ja) 2025-12-16
EP4503059A1 (en) 2025-02-05
US20250122360A1 (en) 2025-04-17
JPWO2023223635A1 (https=) 2023-11-23

Similar Documents

Publication Publication Date Title
JP7513110B2 (ja) 導電性２次元粒子およびその製造方法、導電性膜、導電性複合材料、ならびに導電性ペースト
US20240383175A1 (en) Composite material and method for producing composite material structure body
JP7164055B2 (ja) 導電性複合構造体およびその製造方法
JP7487783B2 (ja) 導電性２次元粒子およびその製造方法
US20240321475A1 (en) Conductive film, electrode, and method for producing conductive film
WO2023047861A1 (ja) 導電性２次元粒子含有組成物、導電性膜、および導電性２次元粒子含有組成物の製造方法
WO2023002916A1 (en) Electrode and method for producing the same
CN116745864A (zh) 导电性膜及其制造方法
US20230233127A1 (en) Biosignal sensing electrode
US12046389B2 (en) Conductive film and method for producing same
US20250354952A1 (en) Electrode and method for manufacturing electrode
US20250388740A1 (en) Two-dimensional particle-containing composition and production method for two-dimensional particle-containing composition
JP2024526906A (ja) 電極およびその製造方法
JP7786571B2 (ja) 膜および電極
US20250161977A1 (en) Film and method for producing same
WO2023048087A1 (en) Two-dimensional particles, conductive film, conductive paste and method for producing two-dimensional particles
WO2023162423A1 (ja) ２次元粒子、２次元粒子の製造方法および材料
JP7750406B2 (ja) 電極および電極の製造方法
US20260001769A1 (en) Two-dimensional particle, and electroconductive film and method for producing same
JP2026069796A (ja) 電極および電極の製造方法
WO2023223780A1 (ja) 導電性２次元粒子およびその製造方法、導電性膜、導電性ペースト、ならびに導電性複合材料
WO2023112778A1 (ja) ２次元粒子、導電性膜、導電性ペーストおよび複合材料
CN121358404A (zh) 电极

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23807251

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024521567

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2023807251

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2023807251

Country of ref document: EP

Effective date: 20241028

WWE Wipo information: entry into national phase

Ref document number: 202380038615.0

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE