EP3894058A1 - Membran für den selektiven stofftransport - Google Patents
Membran für den selektiven stofftransportInfo
- Publication number
- EP3894058A1 EP3894058A1 EP19835631.3A EP19835631A EP3894058A1 EP 3894058 A1 EP3894058 A1 EP 3894058A1 EP 19835631 A EP19835631 A EP 19835631A EP 3894058 A1 EP3894058 A1 EP 3894058A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- membrane according
- acids
- polymer
- vinyl
- 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.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/78—Graft polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/80—Block polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/42—Acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0239—Organic resins; Organic polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04149—Humidifying by diffusion, e.g. making use of membranes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1025—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1041—Polymer electrolyte composites, mixtures or blends
- H01M8/1053—Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/30—Cross-linking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/38—Graft polymerization
- B01D2323/385—Graft polymerization involving radiation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a membrane for the selective
- Mass transfer such as ion-selective membranes for
- Humidification modules, separators for energy storage such as in particular capacitors as well as primary and secondary batteries and / or filter media for gas and liquid filtration.
- Transport takes place the transport of the substances in the direction of the potential gradient.
- the transport speed of the substances to be separated is influenced, among other things, by their mobility in the membrane.
- the transported substance is additionally bound to a free carrier or to the membrane.
- active transport a chemical reaction enables mass transport even against the potential gradient.
- electrochemical energy converters ion-selective membranes make the respective electrochemical half cells electrical
- the membrane should have high mechanical strength and chemical stability.
- electrochemical energy storage the electrochemical energy storage
- the membrane does not allow the membrane to exclude gas. Because of the higher voltage and energy density in some battery cells, it is advantageous if the membrane has high electrochemical stability. The membrane therefore largely determines the service life and performance of electrochemical energy stores and converters.
- Water vapor permeable membranes are used to humidify substances, especially gases, in humidification modules.
- the membranes should selectively prevent gas from passing through, but still allow water permeability.
- the selectivity is that the membrane is impermeable to water
- the water or water vapor permeability is greater in one direction than in the other.
- Filter media are used to separate or clean substances, usually suspensions, dispersions or aerosols. Special areas of application are gas and liquid filtration. In many cases it is desirable if the filter medium enables selective mass transport.
- Mass transfer properties are mostly determined by the physical structure of the membranes. For example, with one
- Battery separator the ion transport takes place over its pore structure.
- the ionic conductivity correlates with the size of the through pores and thus with the air permeability.
- they do not allow decoupling of the ionic conductivity from the pore structure or the air permeability of the membrane.
- known membranes In order to ensure the high ionic conductivity required, known membranes generally have a porous, continuous pore structure or air permeability. Since, at least in batteries, the pore sizes required for ion transport in known membranes are generally much larger than the ion radii of the ions to be transported (eg Li cation in Li ion, Li-S or Li-metal batteries), can no
- Water vapor permeable membranes such as in particular humidifiers for fuel cells, generally have only a small number
- Water vapor transport since they should be as gas-tight as possible. In addition, they do not allow directed water vapor transport. I.e. the water vapor permeability through the membranes is independent of the direction. This is disadvantageous because re-humidification is only possible through additional ones
- Measures such as setting a temperature or
- Pressure difference can be excluded.
- US 20180069220 A1 describes a composite separator for use in Li-ion batteries.
- the composite separator consists of a microporous polyolefin membrane, which is coated with a porous coating of inorganic particles and an organic binder.
- the particles and the binder are matched to one another in terms of their surface energy, so that the coating adheres better to the PO membrane.
- the ion transport in this separator is essentially made possible by the pore structure of the separator, so that there is no decoupling of conductivity and air permeability or porosity.
- US 20180198156 A1 describes a separator for use in Li-sulfur batteries, which is coated with polydopamine and a conductive material.
- the coating is said to use polydopamine, among other things. prevent the polysulfide shuttle.
- the polydopamine of lithium can also be reduced, which is equivalent to self-discharge of the battery.
- an emulsion binder layer is applied between the porous substrate and the porous coating.
- the ion transport in this separator is essentially defined by the pore structure of the separator, so that there is also no decoupling of the ion conductivity from the air permeability or porosity.
- US 20180062142 A1 describes a separator for use in Li-sulfur batteries, which is coated with a functional layer.
- the Functional layer consists of at least 2 carbon nanotube layers and at least 2 graphene oxide layers that contain manganese dioxide particles. This functional layer is intended to increase the service life of the battery according to the invention.
- the ion transport in this separator is essentially made possible by the pore structure of the separator, so that likewise none
- the first layer consists of an ion-conducting, linear polymer
- the second layer consists of inorganic particles with an organic binder
- a third layer can consist of a porous substrate.
- the ion transport in this separator is essentially made possible by the pore structure of the separator, so that there is no decoupling of conductivity and air permeability or porosity.
- US 9358507 B2 describes a composite membrane formed by laminating a layer of moisture-permeable resin to a surface of a hydrophobic porous membrane, the layer of
- moisture-permeable resin is contained in a reinforcing porous membrane.
- the composite membrane is used as a water vapor separation membrane.
- the object of the invention is therefore to provide a membrane for selective mass transfer which at least partially eliminates the disadvantages mentioned above.
- a membrane for selective mass transfer which at least partially eliminates the disadvantages mentioned above.
- the membrane should offer the possibility of preventing undesired passage of mass, for example of dendrites and dissolved and / or particulate substances.
- the membrane should have a low ionic resistance even in the case of air impermeability, in order to provide efficient energy stores and converters.
- the membrane When used as a water vapor-permeable membrane, such as in particular as a humidifier membrane for fuel cells, the membrane should have a high water vapor transport with the highest possible
- the membrane When used as a filter medium, the membrane should make it possible to adjust the mass transfer properties regardless of their physical structure.
- Mass transport the membrane containing a porous substrate equipped with a comb polymer, the comb polymer containing a polymer main chain and several side chains covalently linked to the polymer main chain, and wherein at least one of the side chains has at least one Lewis acidic and / or Lewis basic functionality.
- the aforementioned membrane makes it possible to decouple the ionic conductivity of the membrane from its air permeability and thus from its pore structure. Without specifying a mechanism, it is assumed that this is the case, for example, when used in batteries, accumulators, capacitors, electrolysers and / or
- Fuel cells is possible in that when interacting with the Electrolytes which can generate Lewis acid and / or Lewis basic functionalities an ion-conductive path. This mechanism therefore allows the charge carriers to be transported through the membrane regardless of the porosity and pore size.
- Mass transport which can prevent unwanted ions from passing through the membrane.
- the membrane according to the invention combines high ionic conductivity with high mechanical stability.
- the membrane according to the invention can be manufactured in one layer and still meet all the requirements placed on it. This is advantageous in terms of production and costs.
- the membrane When used as a water vapor permeable membrane, it was found that the membrane has a high water vapor transport with high gas tightness. In addition, it enables a directed
- Air permeability and thus to decouple from their pore structure Air permeability and thus to decouple from their pore structure. Without specifying a mechanism, it is assumed that this becomes possible, for example when it is used in functional textiles and / or humidification modules, in that the Lewis acidic and / or Lewis basic functionalities combine when interacting with water or water vapor
- the membrane When used as a filter medium, the membrane allows
- the membrane for selective mass transfer according to the invention is outstandingly suitable as a separator for energy converters, in particular fuel cells and electrolysers, energy stores such as in particular capacitors, and primary and secondary batteries and / or combinations thereof.
- Preferred batteries are lithium-ion batteries, lithium-sulfur batteries, nickel-metal hydride batteries, nickel-cadmium batteries, nickel-iron
- Batteries nickel-zinc batteries, alkaline-manganese batteries, lead-acid batteries, magnesium-ion batteries, sodium-ion batteries, zinc-air batteries and lithium-air batteries.
- redox flow batteries in particular vanadium redox flow batteries, vanadium bromine redox flow batteries, iron chromium redox flow batteries, zinc bromine redox flow batteries and organic redox flow batteries.
- Capacitors in particular supercapacitors, double-layer capacitors, hybrid capacitors and
- fuel cells in particular LT polymer electrolyte fuel cells, HT polymer electrolyte fuel cells, alkalis
- Fuel cells direct methanol fuel cells, phosphoric acid fuel cells and reversible fuel cells.
- the membrane according to the invention as a water vapor permeable membrane, in particular for functional textiles and humidification modules, such as in humidifier modules for
- the membrane according to the invention as a filter and / or filter medium for gas and liquid filtration.
- the membrane has a comb polymer
- the comb polymer has a polymer main chain and a plurality of side chains covalently bonded to the polymer main chain, at least one of the side chains having at least one Lewis acid and / or Lewis basic functionality.
- the advantage of using a comb polymer compared to linear polymers is that they have a lower tendency to crystallize. As a result, the comb polymers generally have lower densities and thus high side chain mobility.
- Another advantage of using a comb polymer is that it is possible to modify the chemical structure of the polymer backbone and the side chains independently of one another.
- Comb polymer 10 to 3000 more preferably 50 to 2000, even more preferably 100 to 2000 of the side chains according to the invention.
- Repeating units of the main chain have at least one, preferably one to two, of the side chains according to the invention.
- a polymer main chain is understood to mean the longest chain of atoms of a polymer that is covalently bonded to one another.
- the polymer main chain preferably has a molecular weight of
- At least 580 g / mol for example from 580 g / mol to 50,000 g / mol, preferably from 1000 g / mol to 20,000 g / mol, more preferably from 1500 g / mol to 10,000 g / mol and / or at least 8 repeating units,
- the polymer main chain has on average at least 3, for example 3 to 2000, preferably 10 to 1000, more preferably 50 to 500, in particular 50 to 250, side chains. Different main chains can have different numbers of side chains.
- the polymer main chain preferably has polymerized monomers, the monomers being selected from the group consisting of acrylates, Methacrylates, acrylic acids, methacrylic acids, acrylamides, methacrylamides, vinylamides, vinylpyridines, N-vinylimidazoles, N-vinyl-2-methylimidazoles, vinyl halides, styrenes, 2-methylstyrenes, 4-methylstyrenes, 2- (n-butyl) styrenes, 4- (n-Butyl) styrenes, 4- (n-decyl) styrenes, N, N-diallylamines, N, N-diallyl-N-alkylamines, vinyl- and allyl-substituted nitrogen heterocycles, vinyl ethers, vinylsulfonic acids, allylsulfonic acids, vinylphosphonic acids, styrene sulfonic acids, acrylonitriles and Methacrylonit
- Particularly preferred polymerized monomers for the main polymer chain are acrylic acids, methacrylic acids, acrylates, methacrylates, vinylsulfonic acids, vinylphosphonic acids, styrene sulfonic acids, styrene and / or mixtures thereof.
- a side chain is covalently attached to the
- the side chain preferably has a molecular weight of at least 220 g / mol, for example from 220 g / mol to 5000 g / mol, preferably from 220 g / mol to 4500 g / mol, preferably from 360 g / mol to 4000 g / mol more preferably from 450 g / mol to 2500 g / mol, even more preferably 600 g / mol to 2500 g / mol, in particular 700 g / mol to 2500 g / mol and / or at least 5 repeating units,
- the polymer side chain preferably has polymerized monomers, the monomers being selected from the group consisting of
- Vinyl halides styrenes, 2-methylstyrenes, 4-methylstyrenes, 2- (n-butyl) styrenes, 4- (n-butyl) styrenes, 4- (n-decyl) styrenes, N, N-diallylamines, N, N-diallyl -N-alkylamines, vinyl- and allyl-substituted nitrogen heterocycles, vinyl ethers, acrylonitriles and methacrylonitriles, acrylic acids, methacrylic acids, Vinylsulfonic acids, allylsulfonic acids, vinylphosphonic acids, styrene sulfonic acids and / or mixtures thereof.
- Particularly preferred polymerized monomers for the polymer side chain are acrylic acids, methacrylic acids, acrylates, methacrylates, vinylsulfonic acids, vinylphosphonic acids, styrene sulfonic acids and / or mixtures thereof.
- the side chain is formed from polymerized macromonomers.
- the term “formed” is understood to mean that the side chain consists of at least 95% by weight, preferably 100% by weight, of the macromonomer. Be under a macromonomer
- Macromonomers preferably have a molecular weight of at least 140 g / mol, for example from 140 g / mol to 10,000 g / mol, preferably from 220 g / mol to 5000 g / mol, preferably from 360 g / mol to 2000 g / mol, more preferably from 360 g / mol to 1500 g / mol, more preferably 450 g / mol to 1500 g / mol, in particular 600 g / mol to 1500 g / mol.
- the comb polymer preferably also has other monomers, for example acrylic acids,
- Methacrylic acids acrylates, methacrylates, vinyl sulfonic acids,
- the comb polymer is preferably at least partially crosslinked.
- networking is understood to mean the following types of networking:
- At least one polymer main chain of the comb polymer lies with
- At least one further polymer main chain of the comb polymer is covalently bound before; and or 2.
- at least one polymer main chain of the comb polymer is covalently bonded to at least one side chain of the comb polymer; and or
- At least one side chain of the comb polymer is covalently bonded to at least one further side chain of the comb polymer;
- Crosslinking of the comb polymer can be carried out using conventional crosslinking methods known to the person skilled in the art, e.g. radical and / or ionic crosslinking, polymer-analogous crosslinking, coordinative crosslinking and / or electrode beam crosslinking take place.
- the crosslinking of the comb polymer preferably takes place via the
- the copolymerized crosslinking units can be obtained by copolymerizing bifunctional or multifunctional monomers in the preparation of the comb polymer.
- Polymerization is particularly suitable for compounds which can polymerize and / or crosslink at two or more positions in the molecule.
- Such compounds preferably have two identical or similar reactive ones
- Preferred bifunctional or multifunctional monomers are, for example, diacrylates, dimethylacrylates, triacrylates, trimethacrylates, tetraacrylates, tetramethacrylates, pentaacrylates, pentamethacrylates, hexaacrylates,
- Hexamethacrylates diacrylamides, dimethacrylamides, triacrylamides, Trimethacrylamides, tetraacrylamides, tetramethacrylamides, pentaacrylamides, pentamethacrylamides, hexaacrylamides, hexamethacrylamides, divinyl ethers, divinyl benzenes, 3,7-dimethyl-1, 6-octadien-3-ol and / or mixtures thereof.
- the proportion of the crosslinking units is 1% by weight to 75% by weight, more preferably 2% by weight to 55% by weight, even more preferably 2% by weight to 45% by weight and in particular 2% by weight. % 25% by weight.
- the proportion of crosslinking units corresponds to the proportion of bifunctional or multifunctional monomers based on the
- the thickness of the membrane according to the invention is from 10 gm to 4 cm, and / or from 10 gm to 2 cm, and / or from 14 gm to 1 cm , and / or from 14 gm to 500 gm, and / or 14 gm to 300 gm, and / or 14 gm to 200 gm and / or 14 gm to 150 gm.
- preferred thicknesses are from 14 gm to 500 gm, more preferably from 14 gm to 200 gm, in particular from 14 gm to 150 gm.
- preferred thicknesses are from 10 gm to 500 gm, more preferably from 10 gm to 200 gm, even more preferably from 10 gm to 150 gm, even more preferably from 10 gm to 100 gm, even more preferably from 10 gm to 50 gm in particular from 10 gm to 25 gm.
- Functional textiles and moistening modules are preferred thicknesses from 14 gm to 500 gm, more preferably from 14 gm to 200 gm, even more preferably 14 gm to 150 gm, even more preferably from 14 gm to 85 gm, in particular from 14 gm to 30 gm.
- preferred thicknesses are from 25 gm to 4 cm, and / or from 25 gm to 2 cm, and / or 25 gm to 1 cm, and / or from 25 gm to 500 gm, and / or from 25 gm to 300 gm.
- Basis weights from 5 g / m 2 to 200 g / m 2 , more preferably from 5 g / m 2 to 150 g / m 2 , more preferably 5 g / m 2 to 100 g / m 2 , even more preferably from 5 g / m 2 to 50 g / m 2 , in particular from 5 g / m 2 to 25 g / m 2 .
- preferred basis weights are from 8 g / m 2 to 300 g / m 2 , more preferably from 8 g / m 2 to 200 g / m 2 , even more preferably 8 g / m 2 to 100 g / m 2 , more preferably from 8 g / m 2 to 50 g / m 2 , in particular from 8 g / m 2 to 25 g / m 2 .
- Functional textiles and moistening modules are preferred basis weights from 10 g / m 2 to 300 g / m 2 , more preferably from 10 g / m 2 to 200 g / m 2 , even more preferably 10 g / m 2 to 100 g / m 2 , even more preferred from 10 g / m 2 to 50 g / m 2 , in particular from 10 g / m 2 to 25 g / m 2 .
- preferred basis weights are from 10 g / m 2 to 500 g / m 2 , more preferably from 10 g / m 2 to 300 g / m 2 , even more preferably 10 g / m 2 to 200 g / m 2 , more preferably from 10 g / m 2 to 150 g / m 2 , in particular from 10 g / m 2 to 100 g / m 2 .
- the Lewis acidic and / or Lewis basic functionalities are selected from primary, secondary, tertiary and quaternary amino groups, imino, enamino, lactam, nitrate, nitrite, carboxyl, carboxylate, ketyl , Aldehyde, lactone, carbonate, sulfonyl, sulfonate, sulfide, sulfite, sulfate, sulfonamide, thioether, phosphonyl phosphonate, phosphate, phosphoric acid ester, ether, hydroxyl, hydroxide , Halide, coordinatively bound metal ion, in particular
- Transition metal ion, thiocyanate and / or cyanide groups Transition metal ion, thiocyanate and / or cyanide groups.
- Lewis acidic and / or Lewis basic are particularly preferred
- Functionalities selected from primary, secondary, tertiary and quaternary amino groups, lactam, lactone, ether, carboxyl, carboxylate, sulfonyl, sulfonate, phosphoric acid ester, phosphonyl and / or phosphonate groups.
- Lewis acidic and / or Lewis basic functionalities are selected from primary, secondary, tertiary and quaternary amino groups, lactam, lactone,
- Ether carboxyl, carboxylate, sulfonyl, sulfonate, phosphoric acid ester, phosphonyl and / or phosphonate groups.
- Lewis acidic and / or Lewis basic functionalities are selected from lactam, lactone, ether, carboxyl, carboxylate, sulfonyl, sulfonate,
- Phosphoric acid ester Phosphoric acid ester, phosphonyl and / or phosphonate groups.
- Functional textiles and moistening modules are preferred Lewis acid and / or Lewis basic functionalities selected from primary, secondary, tertiary and quaternary amino groups, ether, carboxyl, carboxylate, sulfonyl, sulfonate, phosphoric acid ester, phosphonyl and / or phosphonate -Groups.
- the conductivity of the membrane according to the invention is 1 molar LiPF6 in
- the membrane preferably has Lewis acid and / or Lewis basic
- the electrical resistance of the membrane according to the invention in 30% KOH is less than 0.3 0hm * cm 2 , particularly preferably between 0.05 0hm * cm 2 and 0.2 0hm * cm 2 .
- the membrane preferably has Lewis acid and / or Lewis basic functionalities selected from carboxyl, carboxylate, phosphonate and / or sulfonate groups.
- the air permeability of the membrane according to the invention measured according to EN ISO 9237 at 200 Pascal air flow, is from 0 l / (s * m 2 ) to 400 l / (s * m 2 ), preferably from 0 l / (s * m 2 ) to 200 l (s * m 2 ), more preferably from 0 l / (s * m 2 ) to 100 l / (s * m 2 ), even more preferably from 0 l / (s * m 2 ) up to 50 l / (s * m 2 ).
- Air permeability measured according to EN ISO 9237 at 200 Pascal air flow, from 0 l / (s * m 2 ) to 100 l / (s * m 2 ), more preferably from 0 l / (s * m 2 ) to 50 l / ( s * m 2 ).
- the water vapor permeability of the membrane according to ASTM D1653 is from 1 g / m 2 * min to 500 g / m 2 * min, preferably from 4 g / m 2 * min to 100 g / m 2 * min, more preferably from 5 g / m 2 * min to 75 g / m 2 * min, more preferably from 5 g / m 2 * min to 50 g / m 2 * min.
- the high water vapor permeabilities that can be achieved with the membrane according to the invention are particularly advantageous for use as a water vapor permeable membrane for functional textiles and / or moistening modules, since this makes them good
- the membrane according to the invention has an anisotropic water vapor permeability. This means that the water vapor permeability differs depending on the selected water vapor inlet side (i.e. the side where the water reservoir is located). The side that when used as
- Water vapor inlet side has a higher water vapor passage is defined as the top.
- the anisotropy is preferably
- Water vapor entry side and the water vapor passage when using the underside as the water vapor entry side 3 to 100, more preferably 5 to 50, in particular 8 to 25.
- the Gurley value of the membrane according to the invention measured according to ASTM D-726-58 with an air volume of 50 cm 3 , is at least 200 s, more preferably at least 750 s. The expert knows that he has the Gurley value through
- Degradation products dendrites and gases can be prevented or at least reduced.
- Functional textiles and humidification modules are preferred Gurley values at least 500 s, more preferably at least 800 s, in particular at least 1000 s.
- the setting of a high Gurley value of at least 500 s is advantageous since it can be used to reduce the gas passage of oxygen through the membrane.
- the electrolyte absorption of the membrane is 2% by weight to 600% by weight. More preferably 10% by weight to 400% by weight, still more preferably 10% by weight to 250% by weight, in particular 25% by weight to 150% by weight. These values are particularly relevant for use as a separator for energy converters and energy stores.
- preferred porosities are from 5% to 85%, more preferably from 45% to 85%, in particular from 65% to 85%
- the membrane according to the invention has a surface shrinkage at 120 ° C. of 0.1% to 10%, more preferably 0.1% to 5%.
- the membrane has a porous substrate.
- a porous substrate is understood to mean a flat structure which, as the base material for the membrane for the selective mass transfer, in particular in batteries, capacitors, fuel cells, electrolysers
- Humidification modules and / or as a filter medium for the gas
- the porous substrate preferably has a thickness, measured according to test specification DIN EN ISO 9073-2, from 8 pm to 500 pm, more preferably from 10 pm to 500 pm, more preferably from 10 pm to 250 pm, in particular from 10 pm to 200 pm , on.
- preferred thicknesses for the porous substrate are from 8 pm to 250 pm, more preferably from 8 pm to 150 pm, more preferably from 8 pm to 75 pm, in particular from 8 pm to 50 pm.
- Functional textiles and moistening modules are preferred thicknesses for the porous substrate from 8 pm to 350 pm, more preferably from 15 pm to 200 pm, even more preferably from 15 pm to 150 pm, in particular from 15 pm to 100 pm.
- the porous substrate has a porosity of 25% to 90%, more preferably from 35% to 80%, in particular from 40% to 75%, before the comb polymer is applied.
- microporous membranes such as preferably polyester membranes, are particularly suitable as porous substrates, in particular
- Polyolefin membranes especially polypropylene or
- Polyether sulfone membranes polytetrafluoroethylene membranes, Polyvinylidene fluoride membranes, polyvinyl chloride membranes and / or laminates thereof.
- microporous membranes are polyolefin membranes, polyester membranes, polybenzimidazole membranes, polyimide membranes and / or laminates thereof.
- Coatings based on aluminum oxide, silicon dioxide, titanium dioxide, zirconium phosphate, boron nitride and / or mixtures thereof are particularly preferred.
- the porous substrate is selected from textile fabrics, in particular fabrics, knitted fabrics, papers and / or nonwovens. Advantage of textiles
- Sheets are that they have low thermal shrinkage and high mechanical stability. This is advantageous for use in batteries, capacitors, fuel cells, electrolysers and / or combinations thereof, since it increases the safety of the same.
- Nonwovens are particularly preferred because they combine a high isotropy of their physical properties with an inexpensive production.
- Nonwovens can be spunbond nonwovens, meltblown nonwovens, wet nonwovens, dry nonwovens, nanofiber nonwovens and spun from solution
- spunbonded nonwovens are preferred because they are particularly easy to adjust the distribution of the Fiber thicknesses can be provided with a high mechanical strength.
- meltblown nonwovens are preferred because they can be provided with a small fiber thickness and a very homogeneous distribution with respect to the fiber thicknesses.
- dry nonwovens are preferred because they have a high tensile strength of the fibers. In a particularly preferred
- the textile fabric is a wet nonwoven, since it can be manufactured with a very uniform fiber distribution, a low weight and a particularly small thickness.
- a thin thickness of the porous nonwoven substrate enables electrochemical energy stores and converters with a high energy density and power density.
- the nonwoven in particular in its embodiment as a wet nonwoven, can have staple fibers and / or short cut fibers.
- staple fibers are understood to be fibers with a limited length of preferably 1 mm to 80 mm, more preferably 3 mm to 30 mm.
- short-cut fibers are understood to be fibers with a length of preferably 1 mm to 12 mm, more preferably 3 mm to 6 mm.
- the average titer of the fibers can vary depending on the desired structure of the nonwoven. Has proven to be cheap
- fibers with an average titer of 0.06 dtex to 3.3 dtex, preferably from 0.06 dtex to 1.7 dtex, preferably from 0.06 dtex to 1.0 dtex, has been proven.
- Coating can be achieved.
- the fibers can be designed in a wide variety of forms, for example as flat, hollow, round, oval, trilobal, multilobal, bico and / or island in the sea fibers. According to the invention, the
- the fibers can contain a wide variety of fiber polymers, preferably polyacrylonitrile, polyvinyl alcohol, viscose, cellulose, polyamides, in particular polyamide 6 and polyamide 6.6, polyester,
- polyesters are preferred, in particular polyethylene terephthalate and / or polybutylene terephthalate, copolyesters, polyolefins, in particular polyethylene and / or polypropylene, and / or mixtures thereof. Polyesters are preferred, in particular
- Polyolefins are that due to their hydrophobic surface, they do not restrict the mobility of hydrophilic side chains.
- the fibers advantageously contain the abovementioned materials in a proportion of more than 50% by weight, preferably more than 90% by weight, more preferably from 95% by weight to 100% by weight. They very particularly preferably consist of the materials mentioned above, with usual impurities and
- the fibers of the nonwoven fabric can be present as matrix fibers and / or binding fibers.
- Binding fibers in the sense of the invention are fibers which, for example during the process of making the nonwoven fabric, by heating to a Temperature above its melting point and / or softening point can form consolidation points and / or consolidation areas at least at some crossing points of the fibers.
- the binding fibers can form cohesive connections with other fibers and / or with themselves.
- a framework can be built and a thermally bonded nonwoven can be obtained.
- the binding fibers can also melt completely and thus solidify the nonwoven.
- the binding fibers can be formed as core-sheath fibers, in which the sheath is the binding component, and / or as undrawn fibers.
- Matrix fibers in the sense of the invention are fibers which, in contrast to the binding fibers, are present in a significantly clearer fiber form.
- An advantage of the presence of the matrix fibers is that the stability of the
- Total fabric can be increased.
- the membrane for selective mass transfer according to the invention can be produced in a simple manner using a method which comprises the following steps:
- the reaction mixture comprises a bi- or multifunctional monomer. This can lead to cross-linking of the comb polymer formed during the polymerization.
- a bifunctional or multifunctional monomer can also be present in the reaction mixture for crosslinking the comb polymer.
- the macromonomer could itself be networkable units
- crosslinking of the comb polymer can take place via crosslinking units polymerized into the polymer main chain and / or polymer side chain
- the copolymerized crosslinking units can be obtained by copolymerizing bifunctional or polyfunctional monomers in the preparation of the comb polymer.
- crosslinking are those described above.
- Radical crosslinking is particularly preferred.
- the polymerization of the monomers and / or macromonomers with the formation of the comb polymer preferably takes place radically and / or ionically.
- the polymerization can preferably be initiated thermally and / or radiation-induced.
- Another object of the present invention relates to the use of the membrane according to the invention for the selective mass transfer,
- Functional textiles and / or humidification modules preferably for humidifiers, in particular for humidifiers in fuel cells and / or as a filter medium for gas and / or liquid filtration.
- Another object of the present invention relates to a
- electrochemical energy store and / or converter preferably batteries, in particular primary or secondary batteries, capacitors,
- the present invention further relates to a functional textile and / or a humidification module, preferably a humidifier, in particular a humidifier for fuel cells, comprising the inventive one
- the thickness of the membrane according to the invention was measured according to the test specification DIN EN ISO 9073-2.
- the measuring area is 2 cm 2 , the measuring pressure 1000 cN / cm 2 .
- the Gurley values of the membrane are determined based on ASTM D-726-58. The test determines the time it takes for a certain volume of air (50 cm 3 ) to flow through a standard area of a material under a slight pressure. The air pressure is given by an inner cylinder with a specific diameter and standardized weight, floating in an outer cylinder, partly filled with an oil, which acts as an air seal. If a determination of the air permeability of the membrane according to Gurley is not possible, this means that the membrane is so tight that no air permeability can be measured.
- the ionic resistance of the membrane according to the invention is determined by
- organic electrolytes The samples to be examined are dried at 120 ° C in a vacuum and then placed in 1 M LiPF6 in propylene carbonate for 5 hours so that they are completely wetted with electrolyte. These patterns are then placed between 2 polished stainless steel stamps and the impedance is measured from 1 Hz to 100 kHz.
- aqueous electrolytes For this purpose, the samples to be examined are placed in the aqueous electrolyte for 5 hours (30% KOH for examples in Table 2; 10% sulfuric acid for examples in Table 3) so that they are completely wetted with electrolyte. These patterns are then placed between two polished stainless steel stamps and the impedance is measured from 1 Hz to 100 kHz.
- the electrolyte absorption is determined according to EN 29073-03.
- LiPF6 in propylene carbonate (1 molar) is used, for aqueous electrolytes 30% KOH.
- a polysulfide solution is prepared by dissolving stoichiometric amounts of Li2S and elemental sulfur in DOL / DME (50:50 (vol.%)) At 60 ° C with stirring. To determine the membrane's sulfide impermeability, two glass half-cells are separated by a membrane. Pure, transparent DOL / DME (50:50 (vol.%)) Is placed in one cell and in the other
- the air permeability is determined based on DIN EN ISO 9237, the test result is given in dm 3 / s * m 2 .
- the water vapor transmission rate is determined based on ASTM D1653.
- the measurements take place in an airtight box (height: 29.8 cm, width: 20.8 cm, depth 15.8 cm).
- the measuring temperature in the box is 21 ° C
- the Air speed is 3.8 m / s
- the total air flow through the box is 19.25 m 3 / h.
- the water permeability of the membranes is determined using an Elcometer 5100/1, the measuring surface of the membrane has a diameter of 3.56 cm. It will transport water vapor through the
- a wet PET nonwoven (basis weight: 40 g / m 2 ; thickness 0.1 mm) was functionalized with a solution consisting of 70 g of a PEG
- a PP wet nonwoven (basis weight: 50 g / m 2 ; thickness 0.1 mm) was mixed with a solution consisting of 67.5 g of a PEG-functionalized acrylate (Mn PEG: 480 g / mol), 10 g of a PEG diacrylate (Mn PEG: 250 g / mol), 166.3 g of water and 5.1 g of a commercially available UV radical initiator coated and irradiated with UV light for 60 seconds. The resulting coated nonwoven fabric was then washed in a water bath and dried at 100 ° C. Of the The test was repeated 4 times and the mean values of the thicknesses and weights were determined. A coated nonwoven fabric with a thickness of 0.11 mm and a weight per unit area of 89.2 g / m 2 was obtained.
- a coated nonwoven fabric with a thickness of 0.117 mm and a weight per unit area of 87.4 g / m 2 was obtained.
- a PET wet nonwoven (weight 85 g / m 2 ; thickness 0.12 mm) is coated with a 50% aqueous dispersion of a polyurethane acrylate and dried at 120 ° C.
- the polyurethane acrylate is not a comb polymer that has at least one side chain with a molecular weight of at least 60 g / mol and / or at least 5 repeat units. Rather, the side chains preferably have a molecular weight of 500 to 1000 g / mol.
- Polyurethane acrylates A coated nonwoven fabric with a thickness of 0.128 mm and a weight of 145 g / m 2 is obtained.
- Examples 1-3 have no Gurley air permeability. This means that there are no continuous pores.
- the electrical resistance of the membrane measured in 1 M LiPF6 dissolved in propylene carbonate, is very low and of the same order of magnitude as that of commercial membranes. There is no dependence of the electrical conductivity on 5 the pore sizes of the continuous pores. A diffusion of sulfide ions through the membrane (in DOL / DME) could not be determined.
- the electrical resistance in 30% KOH of the membrane can be independent of the air permeability, i.e. regardless of the 10 pore sizes of the continuous pores. The electrical conductivity is thus decoupled from the pore size.
- Example 9 the electrical conductivity, measured in 10% H2SO4, is greater than that of the commercially available perfluorosulfonic acid membrane 0 (PFSA; see Table 3).
- PFSA perfluorosulfonic acid membrane 0
- An air permeability according to Gurley could not be measured due to the complete air impermeability.
- a PP nonwoven (basis weight: 80 g / m 2 ; thickness 250 ⁇ m) was mixed with a solution consisting of 10.9% by weight of NaOH, 28% by weight of acrylic acid, 0.5% by weight of a diacrylamide crosslinker % By weight of water, 2% by weight of one
- Example 11 shows in Example 11 that by coating the porous
- Substrate with the comb polymer decreases the water vapor permeability in one direction (passage of water from the bottom -> top), while it is more than quadrupled in the other direction.
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- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018131922.3A DE102018131922A1 (de) | 2018-12-12 | 2018-12-12 | Membran für den selektiven Stofftransport |
| PCT/EP2019/083949 WO2020120306A1 (de) | 2018-12-12 | 2019-12-06 | Membran für den selektiven stofftransport |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3894058A1 true EP3894058A1 (de) | 2021-10-20 |
Family
ID=69159712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19835631.3A Pending EP3894058A1 (de) | 2018-12-12 | 2019-12-06 | Membran für den selektiven stofftransport |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220059857A1 (de) |
| EP (1) | EP3894058A1 (de) |
| CN (1) | CN113164882B (de) |
| DE (1) | DE102018131922A1 (de) |
| WO (1) | WO2020120306A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018131928A1 (de) * | 2018-12-12 | 2020-06-18 | Carl Freudenberg Kg | Separator für elektrochemische Energiespeicher und Wandler |
| CN115888435A (zh) * | 2022-12-16 | 2023-04-04 | 杭州瑞酷新材料有限公司 | 一种水气传递膜及其制备方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101815661B1 (ko) * | 2017-05-10 | 2018-01-09 | 한국화학연구원 | 음전하성 오염물질에 대한 내오염성이 우수한 세공충전 음이온교환 복합막 및 그의 제조방법 |
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| JPS57164126A (en) * | 1980-12-05 | 1982-10-08 | Kyowa Gas Chem Ind Co Ltd | Production of comb-type graft copolymer |
| US5795668A (en) * | 1994-11-10 | 1998-08-18 | E. I. Du Pont De Nemours And Company | Fuel cell incorporating a reinforced membrane |
| US6179132B1 (en) * | 1998-03-13 | 2001-01-30 | Millipore Corporation | Surface modified polymeric substrate and process |
| CN1469892A (zh) * | 2000-09-11 | 2004-01-21 | ��ʡ��ѧԺ | 接枝共聚物,将亲水链接枝到疏水聚合物上的方法,及其制品 |
| ITMI20010383A1 (it) * | 2001-02-26 | 2002-08-26 | Ausimont Spa | Membrane idrofiliche porose |
| US8061533B2 (en) * | 2004-03-19 | 2011-11-22 | University Of Tennessee Research Foundation | Materials comprising polydienes and hydrophilic polymers and related methods |
| KR100647287B1 (ko) * | 2004-08-31 | 2006-11-23 | 삼성에스디아이 주식회사 | 폴리머 전해질막 및 이를 채용한 연료전지 |
| US20070251883A1 (en) * | 2006-04-28 | 2007-11-01 | Niu Q Jason | Reverse Osmosis Membrane with Branched Poly(Alkylene Oxide) Modified Antifouling Surface |
| EP1921702A1 (de) * | 2006-11-10 | 2008-05-14 | DSMIP Assets B.V. | Befeuchtungsmembran |
| JP5156504B2 (ja) * | 2008-06-25 | 2013-03-06 | 日本ゴア株式会社 | 複合膜及びそれを用いた水分量調整モジュール |
| US8519074B2 (en) * | 2010-01-15 | 2013-08-27 | The University of Massachusettes | Comb polymers for supramolecular nanoconfinement |
| JP2012206062A (ja) | 2011-03-30 | 2012-10-25 | Nihon Gore Kk | 複合膜 |
| US20140322786A1 (en) * | 2011-11-15 | 2014-10-30 | Apceth Gmbh & Co Kg | Polymer modified substrates, their preparation and uses thereof |
| KR101672095B1 (ko) | 2013-10-18 | 2016-11-02 | 주식회사 엘지화학 | 분리막 및 그를 포함하는 리튬-황 전지 |
| KR102126034B1 (ko) * | 2013-11-01 | 2020-06-23 | 삼성전자주식회사 | 이온 교환막, 그 제조방법 및 그것을 포함한 레독스 플로우 전지 |
| JP2015213871A (ja) * | 2014-05-09 | 2015-12-03 | 旭化成株式会社 | 透過膜、透過膜の製造方法及び塩の分離方法 |
| US10468652B2 (en) | 2015-04-22 | 2019-11-05 | Lg Chem, Ltd. | Separator for lithium secondary battery and manufacturing method therefor |
| EP3809509B1 (de) | 2015-05-11 | 2022-07-27 | Contemporary Amperex Technology Co., Limited | Zusammengesetzte membran und lithium-ionen-batterie damit |
| KR102024898B1 (ko) * | 2015-06-22 | 2019-09-24 | 주식회사 엘지화학 | 세퍼레이터 및 이를 포함하는 리튬 전지 |
| KR102038543B1 (ko) | 2016-01-28 | 2019-10-30 | 주식회사 엘지화학 | 폴리도파민을 포함하는 복합 코팅층이 형성된 리튬-황 전지용 분리막, 이의 제조방법 및 이를 포함하는 리튬-황 전지 |
| KR101928048B1 (ko) * | 2016-02-29 | 2018-12-12 | 충남대학교산학협력단 | 미세 나노기공 멤브레인, 이의 제조 방법 및 이를 이용한 미세유체소자 |
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| CN107785523B (zh) | 2016-08-31 | 2019-12-03 | 清华大学 | 锂硫电池隔膜以及锂硫电池 |
| CN106745457B (zh) * | 2016-12-26 | 2019-12-17 | 深圳大学 | 选择性吸附金离子的中空纤维膜及其制备方法与应用 |
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2018
- 2018-12-12 DE DE102018131922.3A patent/DE102018131922A1/de active Pending
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2019
- 2019-12-06 WO PCT/EP2019/083949 patent/WO2020120306A1/de not_active Ceased
- 2019-12-06 EP EP19835631.3A patent/EP3894058A1/de active Pending
- 2019-12-06 CN CN201980057920.8A patent/CN113164882B/zh active Active
- 2019-12-06 US US17/312,400 patent/US20220059857A1/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101815661B1 (ko) * | 2017-05-10 | 2018-01-09 | 한국화학연구원 | 음전하성 오염물질에 대한 내오염성이 우수한 세공충전 음이온교환 복합막 및 그의 제조방법 |
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| Publication number | Publication date |
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| DE102018131922A1 (de) | 2020-06-18 |
| CN113164882B (zh) | 2023-12-22 |
| WO2020120306A1 (de) | 2020-06-18 |
| US20220059857A1 (en) | 2022-02-24 |
| CN113164882A (zh) | 2021-07-23 |
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