WO2015057026A1 - 이온전달 소재, 이를 포함하는 전해질막 및 이의 제조 방법 - Google Patents
이온전달 소재, 이를 포함하는 전해질막 및 이의 제조 방법 Download PDFInfo
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- WO2015057026A1 WO2015057026A1 PCT/KR2014/009811 KR2014009811W WO2015057026A1 WO 2015057026 A1 WO2015057026 A1 WO 2015057026A1 KR 2014009811 W KR2014009811 W KR 2014009811W WO 2015057026 A1 WO2015057026 A1 WO 2015057026A1
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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
- H01M8/103—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
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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
- H01M8/1046—Mixtures of at least one polymer and at least one additive
- H01M8/1051—Non-ion-conducting additives, e.g. stabilisers, SiO2 or ZrO2
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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
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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
- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
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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
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
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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
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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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
- H01M8/20—Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
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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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- 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
- H01M2300/0088—Composites
- H01M2300/0091—Composites in the form of mixtures
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present application relates to an ion transport material, an electrolyte membrane comprising the same, and a method of manufacturing the same.
- a fuel cell is an energy conversion device that converts chemical energy of a fuel directly into electrical energy.
- a fuel cell is a power generation method that uses fuel gas and an oxidant and generates electric power by using electrons generated during the redox reaction.
- the membrane electrode assembly (MEA) of a fuel cell is a portion in which an electrochemical reaction between hydrogen and oxygen occurs and is composed of a cathode, an anode, and an electrolyte membrane, that is, an ion conductive electrolyte membrane.
- a redox flow battery (redox flow battery) is an electrochemical storage device that stores the chemical energy of an active material directly as electrical energy by charging and discharging the active material contained in the electrolyte. to be.
- the unit cell of the redox flow battery includes an electrode, an electrolyte, and an ion exchange membrane.
- Fuel cells and redox flow cells are being researched and developed as next generation energy sources due to their high energy efficiency and eco-friendly features with low emissions.
- ion-exchange membrane materials for fuel cells and redox flow batteries have the potential to: 1) prevent crossover of electrolytes, 2) strong chemical resistance, 3) strengthen mechanical properties, and 4) low swelling ratio. Must have characteristics. Accordingly, research on the electrolyte membrane having the above characteristics is continued.
- the present application is to provide an ion transport material, an electrolyte membrane comprising the same and a method of manufacturing the same.
- the present application is a unit of the formula (1); And a copolymer comprising at least one unit of a unit of Formula 2, a unit of Formula 3, and a unit of Formula 4, and an inorganic particle dispersed in the copolymer.
- Z is a trivalent aromatic ring group or a trivalent heterocyclic group
- L is a direct bond or a divalent linking group
- X 1 to X 3 are the same as or different from each other, and each independently a direct bond, oxygen (O), carbonyl group (-CO-), sulfone group (-SO 2- ), arylene group, heteroarylene group, or *- ZL-SO 3 R, * indicates the part connected to the main chain,
- R is a group 1 element of the periodic table
- Y 1 to Y 22 are the same as or different from each other, and each independently hydrogen (H), fluorine (F), or a substituted or unsubstituted alkyl group,
- Each of the units of Formulas 2 to 4 has at least one fluorine substituent.
- an electrolyte membrane including the ion transport material is provided.
- the present invention also provides a fuel cell including the electrolyte membrane.
- a redox flow battery including the electrolyte membrane is provided.
- the unit of formula 1A And preparing a copolymer-containing solution A including at least one unit of the unit of Formula 2, the unit of Formula 3, and the unit of Formula 4; Preparing a solution B comprising an inorganic particle precursor and an acid catalyst; Mixing the solutions A and B; And it provides a method for producing an electrolyte membrane comprising the step of forming a membrane with the mixed solution.
- X 4 to X 6 are the same as or different from each other, and each independently a direct bond, oxygen (O), carbonyl group (-CO-), sulfone group (-SO 2- ), arylene group, heteroarylene group, or *- ZL-SO 3 M, * indicates the part connected to the main chain,
- M is an alkali metal element.
- the inorganic particles are uniformly dispersed in the polymer matrix and thus have strong mechanical properties.
- the electrolyte membrane including the ion transport material reduces the swelling phenomenon by the solvent.
- the electrolyte membrane including the ion transport material according to the exemplary embodiment of the present application is excellent in preventing the crossover of the electrolyte material.
- the electrolyte membrane including the ion transport material according to an exemplary embodiment of the present application is excellent in ion conductivity.
- the manufacturing method of the electrolyte membrane according to an exemplary embodiment of the present application is a simple manufacturing method by mixing the solution.
- the method of manufacturing an electrolyte membrane according to an exemplary embodiment of the present application easily generates inorganic particles in the electrolyte membrane, and evenly disperses the inorganic particles over the entire region of the copolymer matrix forming the electrolyte membrane.
- FIG. 1 illustrates a form in which inorganic particles are evenly dispersed in the entire region of the ion transport material according to the exemplary embodiment of the present application.
- An exemplary embodiment of the present application provides an ion transport material including a copolymer and inorganic particles dispersed in the copolymer.
- the copolymer is a partially fluorine-based polymer containing a sulfonate group.
- the partial fluorine-based polymer means that at least one monomer constituting the polymer has a fluorine group.
- the hydrocarbon chain may be a copolymer containing a fluorine-based substituent.
- copolymer may be an alternating copolymer, a block copolymer, a random copolymer, or a graft copolymer.
- the copolymer is a unit of Formula 1; And at least one unit of the unit of Formula 2, the unit of Formula 3, and the unit of Formula 4.
- Y 1 to Y 22 may be the same as or different from each other, and each independently C 1 to C 10 alkyl group unsubstituted or substituted with hydrogen (H) or fluorine (F).
- the substituted or unsubstituted C 1 to C 10 alkyl group may be chain or branched.
- -(CQQ ') pQ ", Q, Q' and Q" are hydrogen (-H) or fluorine (-F), and p may be 1-10.
- R may be hydrogen, lithium (Li), sodium (Na) or potassium (K) of the Group 1 elements of the periodic table.
- L is a direct bond, an alkylene group, an alkenylene group, an alkynylene group,-[(CRR ') rO (CR “R”') s] t-, or -CO-Ar -,
- R, R ', R "and R"' are the same as or different from each other, and are each independently hydrogen, an alkyl group, or a halogen group,
- R and s are 0 to 3
- T 1 to 5
- Ar is an arylene group or a heteroarylene group.
- S and r may be s + r ⁇ 1.
- L is-(CH 2 ) m [(CF 2 ) 2 O (CF 2 ) 2 ) n-.
- M and n are integers from 0 to 5.
- the alkylene group is an alkylene group having 1 to 20 carbon atoms
- the alkenylene group is an alkenylene group having 2 to 20
- the alkynylene group is an alkyylene group having 2 to 20, but is not limited thereto.
- the trivalent aromatic ring group is a trivalent aryl group, the aryl may have 6 to 60 carbon atoms, specifically 6 to 40, more specifically 6 to 25 carbon atoms.
- Specific examples of the aryl include phenyl, biphenyl, triphenyl, naphthyl, anthryl, chrysenyl, phenanthrenyl, perrylenyl, fluoranthenyl, triphenylenyl, penalenyl, pyrenyl, tetrasenyl, pentacenyl , Fluorenyl, indenyl, acenaphthylenyl, fluorenyl, and the like or a condensed ring thereof, but are not limited thereto.
- the trivalent heterocyclic group may include S, O or N as a hetero atom, and may have 2 to 60 carbon atoms, specifically 2 to 40 carbon atoms, and more specifically 3 to 25 carbon atoms.
- Specific examples of the heterocyclic group include pyridyl, pyrrolyl, pyrimidyl, pyridazinyl, furanyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isozozolyl, triazolyl , Furazanyl, oxdiazolyl, thiadiazolyl, dithiazolyl, tetrazolyl, pyranyl, thiopyranyl, diazinyl, oxazinyl, thiazinyl, dioxynyl, triazinyl, tetrazinyl, quinolyl, Isoquinolyl, quinazolinyl,
- the arylene group may be a divalent aryl group, and the carbon number of the aryl may be 6 to 60, specifically 6 to 40, and more specifically 6 to 25.
- Specific examples of the aryl include phenyl, biphenyl, triphenyl, naphthyl, anthryl, chrysenyl, phenanthrenyl, perrylenyl, fluoranthenyl, triphenylenyl, penalenyl, pyrenyl, tetrasenyl, pentacenyl , Fluorenyl, indenyl, acenaphthylenyl, fluorenyl, and the like or a condensed ring thereof, but are not limited thereto.
- the heteroarylene group may be a divalent heteroaryl group, and the heteroaryl may include S, O, or N as a hetero atom, 2 to 60 carbon atoms, specifically 2 to 40 carbon atoms, and more specifically 3 to 25 carbon atoms.
- heteroaryl examples include pyridyl, pyrrolyl, pyrimidyl, pyridazinyl, furanyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, triazolyl, Furazanyl, oxadiazolyl, thiadiazolyl, dithiazolyl, tetrazolyl, pyranyl, thiopyranyl, diazinyl, oxazinyl, thiazinyl, dioxynyl, triazinyl, tetrazinyl, quinolyl, iso Quinolyl, quinazolinyl, isoquinazolinyl, naphthyridyl, acridinyl, phenanthridinyl, imidazopyridinyl, diazanaphthalenyl, triazadenene
- the inorganic particles are dispersed over the entire region of the copolymer.
- Hydrophobic and hydrophilic phase separation when measured using a scanning electron microscope (SEM), atomic force microscope (AFM), etc. in the form of a solution of the copolymer, solid or cast membrane Due to the separation property, it is possible to confirm the separation of the hydrophobic portion containing no sulfonic acid group and the hydrophilic portion containing sulfonic acid group in the copolymer.
- the dispersion region of the inorganic particles can also be confirmed by imaging of the SEM and AFM. Due to the phase separation and dispersion of the inorganic particles, mechanical properties may be enhanced, and ion conductivity may be improved and crossover may be suppressed.
- the ion transport material is formed as a film, and one surface of the film is photographed by an apparatus such as an atomic force microscope (AFM), an optical profiler, a scanning electron microscope (SEM), or the like.
- AFM atomic force microscope
- SEM scanning electron microscope
- the area occupied by the inorganic particles per square micrometer area may be 2% to 30%, specifically 5% to 20%, and more specifically 7% to 15%.
- the area occupied by the inorganic particles per square micrometer area means an area ratio occupied by the inorganic particles in each area when all of one surface of the membrane is divided into square micrometer area units.
- the inorganic particles may exist in the form of microparticles or in the form of agglomerated masses, but are preferably evenly dispersed in the form of microparticles.
- the diameter of the inorganic particles is 5 to 200 nm, specifically 10 to 100 nm. If the diameter of the inorganic particles exceeds 200 nm, there is a problem that the mechanical properties of the electrolyte membrane including the ion transport material is lowered. In addition, when it is in the range of 10 to 100 nm, it is possible to enhance the mechanical properties of the electrolyte membrane, and at the same time, by dispersing an inorganic particle of a suitable size in the ion transport channel portion, exhibits the effect of suppressing crossover, the performance of ion transfer Can increase.
- the diameter is a value representing the particle size, and may mean a length value of the longest line among the lines passing through the center of the particle, and a measuring method used in the art may be used. For example, it may be measured using an optical profiler, a scanning electron microscope (SEM), or the like.
- the average particle diameter of the inorganic particles may be 5 to 200 nm, specifically 10 to 100 nm.
- the particle diameter can be interpreted to be the same as the diameter
- the average particle diameter of the inorganic particles means the average value of the particle diameter of the inorganic particles.
- the average particle diameter may be measured using a method used in the art. For example, particles may be photographed using an optical profiler, a scanning electron microscope (SEM), or the like, and the particle size may be measured to obtain their average values.
- the inorganic particle is silica.
- the content of the inorganic particles is preferably 2 to 30 parts by weight based on 100 parts by weight of the solids of the ion-transfer material, and 5 to 12 parts by weight based on 100 parts by weight of the solids of the ion-transfer material. If the content of the inorganic particles is less than 2 parts by weight, the effect of preventing crossover of the electrolyte material generated along the ion channel is insufficient. If the content of the inorganic particles is more than 30 parts by weight, the mechanical properties of the electrolyte membrane including the ion transport material are reduced.
- Chemical Formula 2 may be represented by the following Chemical Formula 2A.
- Chemical Formula 3 may be represented by the following Chemical Formula 3A.
- Chemical Formula 4 may be represented by the following Chemical Formula 4A.
- the copolymer is a copolymer formed by including at least one unit of the unit represented by the following formula (5), (6), (7), (8), (9) and (10). .
- R is as described above, and a and b mean mole fraction with respect to the entire copolymer.
- the copolymer is a copolymer including a unit represented by the following formula (5).
- the copolymer is a copolymer including a unit represented by the following formula (6).
- the copolymer is a copolymer including a unit represented by the following formula (7).
- the copolymer is a copolymer including a unit represented by the following formula (8).
- the copolymer is a copolymer including a unit represented by the following formula (9).
- the copolymer is a copolymer including a unit represented by the following formula (10).
- the copolymer is a homopolymer of any one of units represented by the following Formula 5, Formula 6, Formula 7, Formula 8, Formula 9 or Formula 10, or two or more Copolymer.
- the copolymer may be an alternating copolymer, a block copolymer, a random copolymer or a graft copolymer, and is preferably a block copolymer.
- the weight average molecular weight of the copolymer is 10,000 to 1,000,000, specifically 50,000 to 500,000, and more preferably 50,000 to 200,000. If the weight average molecular weight of the copolymer is less than 10,000, the mechanical properties of the electrolyte membrane including the ion transport material is lowered. If the weight average molecular weight of the copolymer is more than 1,000,000, the solubility of the copolymer is lowered, making it difficult to prepare the electrolyte membrane including the ion transport material.
- the ion transport material according to the exemplary embodiment of the present application includes a copolymer having at least one monomer having a fluorine group, unlike a hydrocarbon-based polymer, phase separation of a hydrophilic part containing a sulfonate group and a hydrophobic part including a fluorine group is performed. ) Has an advantageous effect. The better phase separation is advantageous for the expression of cationic conductivity properties.
- an exemplary embodiment of the present application provides an electrolyte membrane including the ion transport material.
- the "electrolyte membrane” is a membrane capable of exchanging ions, such as a membrane, an ion exchange membrane, an ion transfer membrane, an ion conductive membrane, a separator, an ion exchange membrane, an ion transfer membrane, an ion conductive separator, an ion exchange electrolyte membrane, and an ion. It may be represented as a transfer electrolyte membrane or an ion conductive electrolyte membrane.
- the thickness of the electrolyte membrane is preferably 5 to 200 ⁇ m, more preferably 10 to 100 ⁇ m.
- the thickness of the electrolyte membrane is less than 5 ⁇ m, electric short and crossover of the electrolyte material may not be prevented, and when the thickness of the electrolyte membrane is more than 200 ⁇ m, excellent cation conductivity characteristics are difficult to express.
- the electrolyte membrane according to an exemplary embodiment of the present application is a form in which inorganic particles are dispersed in a sulfonate group-containing partial fluorine-based polymer as defined above, and mechanical properties are enhanced compared to conventional electrolyte membranes, and swelling for a solvent ( Swelling can be reduced.
- the inorganic particles are evenly distributed in the electrolyte membrane, that is, have a constant density per unit area, and thus mechanical properties can be further enhanced.
- the electrolyte membrane according to an exemplary embodiment of the present application is dispersed in the inorganic particles, it is excellent in the effect of preventing crossover (Cross Over).
- an exemplary embodiment of the present application provides a fuel cell including the electrolyte membrane.
- a fuel cell is an energy conversion device that converts chemical energy of a fuel directly into electrical energy.
- a fuel cell is a power generation method that uses fuel gas and an oxidant and generates electric power by using electrons generated during the redox reaction.
- the membrane electrode assembly (MEA) of the fuel cell includes a cathode, an anode, and an electrolyte membrane, that is, an ion conductive electrolyte membrane as an electrochemical reaction between hydrogen and oxygen.
- the electrolyte membrane according to the present invention is used as an ion exchange membrane of a fuel cell, the aforementioned effects can be obtained.
- an exemplary embodiment of the present application provides a redox flow battery including the electrolyte membrane.
- the redox flow battery (redox flow battery) is an electrochemical storage device that stores the chemical energy of an active material directly as electrical energy. It is a system in which the active material contained in the electrolyte is oxidized, reduced, and charged and discharged. to be.
- the redox flow battery uses a principle that charges and discharges are exchanged when electrons containing active materials having different oxidation states meet with an ion exchange membrane interposed therebetween.
- a redox flow battery is composed of a tank containing electrolyte, a battery cell in which charging and discharging occurs, and a circulation pump for circulating the electrolyte between the tank and the battery cell. Exchange membrane.
- the electrolyte membrane according to the present application is used as an ion exchange membrane of a redox flow battery, the aforementioned effects can be obtained.
- another exemplary embodiment of the present application includes the unit of Formula 1A; And preparing the copolymer-containing solution A including at least one unit of the unit of Formula 2, the unit of Formula 3, and the unit of Formula 4; Preparing a solution B comprising an inorganic particle precursor and an acid catalyst; Mixing the solutions A and B; And it provides a method for producing an electrolyte membrane comprising the step of forming a membrane with the mixed solution.
- the process is simple by mixing the solution and forming the film.
- the production method is simpler than the conventional process of forming a film and absorbing or dispersing the inorganic particles by forming a film and dispersing the inorganic particles, and has an effect of controlling the properties of the inorganic particles in the step of preparing the film. have.
- the manufacturing method may reduce the aggregation of inorganic particles and increase the dispersion degree by using a solution containing an inorganic particle precursor, and unlike the method of dispersing the inorganic particles themselves, the size and content of the inorganic particles may be controlled. It works. That is, by dispersing the precursor prior to the formation of the inorganic particles using a solution containing the inorganic particle precursor, the inorganic particles can be uniformly dispersed in a wide area, and the electrolyte membrane can be prepared by adjusting the size and content of the inorganic particles. It works.
- preparing a solution B including an inorganic particle precursor and an acid catalyst; And mixing at least one of the solutions A and B may comprise adjusting the size or content of the inorganic particles.
- examples of the alkali metal element M may be lithium (Li), sodium (Na) or potassium (K).
- the alkali metal M is ion-bonded with the sulfonate group to lower the reactivity of the sulfonate group, thereby allowing the inorganic particles to be dispersed evenly over the entire region of the copolymer.
- the manufacturing method may further include applying a film on the substrate and heating after mixing the solutions A and B.
- the heating means curing through heating, and the inorganic particle precursor forms inorganic particles by the heating.
- the manufacturing method may further include replacing an alkali metal with hydrogen after forming a film.
- the solution B includes an inorganic particle precursor, an acid catalyst and a solvent.
- the inorganic particle precursors refers to the material of the inorganic particles forming step to form the inorganic particles.
- the inorganic particle precursor is specifically Tetraethyl orthosilicate (TEOS), Tetramethyl orthosilicate (TMOS), 3-glycidyloxypropyltrimethoxysilane (GOTMS), monophenyl triethoxysilane (MPh), polyethoxysilane (PEOS), 3-glycis Doxypropyltrimethoxy silane, vinyltriethoxy silane, 3-aminopropyltrimethoxy silane, 3-aminopropyltriethoxy silane, N-2-aminoethyl-3-aminopropyltrimethoxy silane, N- ( Beta-aminoethyl) gamma-aminopropyltrimethoxy silane, N- (beta-aminoethyl) gamma-aminopropylmethyldimethoxy silane, gamma-ureidopropyltrimethoxy silane, 3-
- the inorganic particle precursor may be used alone or in combination of two or more thereof.
- the inorganic particle is silica.
- the characteristics of the size, content, etc. of the inorganic particles are as described above.
- the acid catalyst may be selected from hydrochloric acid, sulfuric acid and phosphoric acid.
- the acid catalyst is not limited thereto, and may be used by appropriately adjusting the acid catalyst used in the art as needed.
- the solvent may include one or more selected from water and alcohols.
- the alcohol may be a monohydric alcohol such as methanol or ethanol, and may be a primary, secondary or multiple alcohol.
- the alcohol is not limited thereto, and may be used by appropriately adjusting the alcohol solvent used in the art as needed.
- the solvent includes water and ethanol.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM).
- AFM atomic force microscope
- SEM scanning electron microscope
- the area occupied by the inorganic particles per square micrometer area was about 10%.
- the ion transport material was used as the electrolyte membrane, the ion conductivity of the electrolyte membrane was 0.13 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- Example 2 The same procedure as in Example 1 was carried out except that the copolymer including the unit represented by the formula (6) was used instead of the copolymer including the unit represented by the formula (5).
- the weight average molecular weight of the copolymer was 200,000, and the diameter of the inorganic particles was 10 to 50 nm.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM). The area occupied by the inorganic particles per square micrometer area was about 10%.
- AFM atomic force microscope
- SEM scanning electron microscope
- the ion transport material was used as the electrolyte membrane
- the ion conductivity of the electrolyte membrane was 0.11 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- Example 2 The same procedure as in Example 1 was carried out except that the copolymer including the unit of the formula (7) was used instead of the copolymer including the unit of the formula (5).
- the weight average molecular weight of the copolymer was 150,000, and the diameter of the inorganic particles was 10 to 50 nm.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM). The area occupied by the inorganic particles per square micrometer area was about 10%.
- AFM atomic force microscope
- SEM scanning electron microscope
- the ion conductivity of the electrolyte membrane was 0.10 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- Example 2 The same procedure as in Example 1 was performed except that the copolymer including the unit of Formula 8 was used instead of the copolymer including the unit of Formula 5.
- the weight average molecular weight of the copolymer was 200,000, the diameter of the inorganic particles was 10nm to 50nm.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM).
- AFM atomic force microscope
- SEM scanning electron microscope
- the area occupied by the inorganic particles per square micrometer area was about 10%.
- the ion conductivity of the electrolyte membrane was 0.10 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- Example 1 was carried out in the same manner as in Example 1 except that the copolymer including the unit of Formula 9 was used instead of the copolymer including the unit of Formula 5.
- the weight average molecular weight of the copolymer was 200,000, and the diameter of the inorganic particles was 10nm to 50nm.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM).
- AFM atomic force microscope
- SEM scanning electron microscope
- the area occupied by the inorganic particles per square micrometer area was about 10%.
- the ion transport material was used as the electrolyte membrane
- the ion conductivity of the electrolyte membrane was 0.15 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- Example 2 The same procedure as in Example 1 was performed except that the copolymer including the unit of Formula 10 was used instead of the copolymer including the unit of Formula 5.
- the weight average molecular weight of the copolymer was 150,000, the diameter of the inorganic particles was 10nm to 50nm.
- the ion-transfer material is formed into a film, and one surface of the film is photographed by using a device such as an atomic force microscope (AFM), an optical profiler, or a scanning electron microscope (SEM).
- AFM atomic force microscope
- SEM scanning electron microscope
- the area occupied by the inorganic particles per square micrometer area was about 10%.
- the ion transport material was used as the electrolyte membrane
- the ion conductivity of the electrolyte membrane was 0.11 S / cm and the crossover of the electrolyte (VO 2+ ) material was about 2 ⁇ 10 ⁇ 7 cm 2 / min.
- a coating composition was prepared by stirring 150 g of a hydrocarbon copolymer solution having a solid content concentration of 15 wt%, 10 g of tetraethoxy silane, 2 g of distilled water, and 1 g of hydrochloric acid. The composition was applied and cured on a tempered glass substrate to obtain an electrolyte membrane having a thickness of 50 ⁇ m.
- the weight average molecular weight of the copolymer was 200,000, and the diameter of the dispersed silica was 10 to 50 nm.
- the ion conductivity of the electrolyte membrane was 0.10 S / cm, and the crossover of the electrolyte (VO 2+ ) material was about 3 ⁇ 10 ⁇ 7 cm 2 / min.
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Abstract
Description
Claims (20)
- 하기 화학식 1의 단위; 및 하기 화학식 2의 단위, 하기 화학식 3의 단위 및 하기 화학식 4의 단위 중 적어도 하나의 단위를 포함하는 공중합체, 및 상기 공중합체 중에 분산된 무기입자를 포함하는 이온전달 소재:[화학식 1][화학식 2][화학식 3][화학식 4]상기 화학식 1에 있어서,Z는 3가 방향족고리기 또는 3가 헤테로고리기이고,L은 직접결합, 또는 2가 연결기이며,X1 내지 X3는 서로 같거나 상이하고, 각각 독립적으로 직접 결합, 산소(O), 카보닐기(-CO-), 술폰기(-SO2-), 아릴렌기, 헤테로아릴렌기, 또는 *-Z-L-SO3R이며, *은 주쇄에 연결되는 부분을 표시하고,R은 주기율표상 1족 원소이며,화학식 2 내지 4에서,Y1 내지 Y22는 서로 같거나 상이하고, 각각 독립적으로 수소(H), 불소(F), 또는 치환 또는 비치환된 알킬기이며,상기 화학식 2 내지 4의 단위는 각각 적어도 하나의 불소 치환기를 가진다.
- 청구항 1에 있어서, 상기 L은 직접결합, 알킬렌기, 알케닐렌기, 알키닐렌기, -[(CRR')rO(CR"R"')s]t-, 또는 -CO-Ar-이고, R, R', R" 및 R"'은 서로 같거나 상이하고 각각 독립적으로 수소, 알킬기 또는 할로겐기이고, r 및 s는 0 내지 3이며, t는 1 내지 5이고, Ar은 아릴렌기 또는 헤테로아릴렌기인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 L은 -(CH2)m[(CF2)2O(CF2)2]n-이고, 상기 m 및 n은 0 내지 5의 정수인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 치환 또는 비치환된 알킬기는 탄소수 1 내지 10의 알킬기로서, -(CQQ')pQ"이고, 상기 Q, Q' 및 Q"은 수소(-H) 또는 불소(-F)이며, 상기 p는 1 내지 10인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 무기입자는 실리카인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 무기입자의 함량은 이온전달 소재 고형분 100중량부 대비 2 내지 30 중량부인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 무기입자의 직경은 5 내지 200 nm인 것을 특징으로 하는 이온전달 소재.
- 청구항 1에 있어서, 상기 공중합체의 중량평균분자량은 10,0000 내지 1,000,000인 것을 특징으로 하는 이온전달 소재.
- 청구항 1 내지 8 중 어느 한 항의 이온전달 소재를 포함하는 전해질막.
- 청구항 9에 있어서, 상기 전해질막의 두께는 5 내지 200 μm인 것을 특징으로 하는 전해질막.
- 청구항 9의 전해질막을 포함하는 연료전지.
- 청구항 9의 전해질막을 포함하는 레독스 플로우 전지.
- 하기 화학식 1A의 단위; 및 하기 화학식 2의 단위, 하기 화학식 3의 단위 및 하기 화학식 4의 단위 중 적어도 하나의 단위를 포함하는 공중합체 함유 용액 A를 준비하는 단계;무기입자 전구체 및 산촉매를 포함하는 용액 B를 준비하는 단계;상기 용액 A 및 B를 혼합하는 단계; 및상기 혼합액으로 막을 형성하는 단계를 포함하는 것을 특징으로 하는 전해질막의 제조방법:[화학식 1A][화학식 2][화학식 3][화학식 4]상기 화학식 1A에 있어서, Z는 3가 방향족고리기 또는 3가 헤테로고리기이고,L은 직접결합, 또는 2가 연결기이며,X4 내지 X6는 서로 같거나 상이하고, 각각 독립적으로 직접 결합, 산소(O), 카보닐기(-CO-), 술폰기(-SO2-), 아릴렌기, 헤테로아릴렌기, 또는 *-Z-L-SO3M이며, *은 주쇄에 연결되는 부분을 표시하고,M은 알칼리 금속 원소이며,화학식 2 내지 4에서,Y1 내지 Y22는 서로 같거나 상이하고, 각각 독립적으로 수소(H), 불소(F), 또는 치환 또는 비치환된 알킬기이며,상기 화학식 2 내지 4의 단위는 각각 적어도 하나의 불소 치환기를 가진다.
- 청구항 13에 있어서, 상기 L은 직접결합, 알킬렌기, 알케닐렌기, 알키닐렌기, -[(CRR')rO(CR”R"')s]t-, 또는 -CO-Ar-이고, R, R', R” 및 R"'은 서로 같거나 상이하고 각각 독립적으로 수소, 알킬기 또는 할로겐기이고, r 및 s는 0 내지 3이며, t는 1 내지 5이고, Ar은 아릴렌기 또는 헤테로아릴렌기인 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 L은 -((CH2)m((CF2)2O(CF2)2)n-이고, 상기 m 및 n은 0 내지 5의 정수인 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 치환 또는 비치환된 알킬기는 탄소수 1 내지 10의 알킬기로서, -(CQQ')pQ”이고, 상기 Q, Q' 및 Q”은 수소(-H) 또는 불소(-F)이며, 상기 p는 1 내지 10인 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 무기입자 전구체는 TEOS(Tetraethyl orthosilicate), TMOS(Tetramethyl orthosilicate), GOTMS(3-glycidyloxypropyltrimethoxysilane), MPh(monophenyl triethoxysilane), PEOS(polyethoxysilane), 3-글리시독시프로필트리메톡시 실란, 비닐트리에톡시 실란, 3-아미노프로필트리메톡시 실란, 3-아미노프로필트리에톡시 실란, N-2-아미노에틸-3-아미노프로필트리메톡시 실란, N-(베타-아미노에틸)감마-아미노프로필트리메톡시 실란, N-(베타-아미노에틸)감마-아미노프로필메틸디메톡시 실란, 감마-우레이도프로필트리메톡시 실란, 3-머캡토프로필트리메톡시 실란 및 3-이소시아나토프로필트리메톡시 실란 중에서 선택되는 적어도 하나인 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 제조방법은 막을 형성한 후에 알칼리 금속을 수소로 치환하는 단계를 더 포함하는 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 혼합액으로 막을 형성하는 단계는 기재상에 막을 도포하는 단계 및 히팅하는 단계를 포함하는 것을 특징으로 하는 전해질막의 제조방법.
- 청구항 13에 있어서, 상기 용액 B는 무기입자 전구체, 산촉매 및 용매를 포함하는 것을 특징으로 하는 전해질막의 제조방법.
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JP2016536052A JP6566950B2 (ja) | 2013-10-18 | 2014-10-17 | イオン伝達素材、これを含む電解質膜およびその製造方法 |
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KR20110063175A (ko) * | 2009-12-04 | 2011-06-10 | 현대자동차주식회사 | 술폰산기를 갖는 폴리(아릴렌에테르) 공중합체, 이의 제조방법 및 이를 이용한 연료전지용 고분자 전해질 막 |
JP2013177522A (ja) * | 2012-02-29 | 2013-09-09 | Toray Ind Inc | 高分子電解質成形体、およびそれを用いた高分子電解質膜、膜電極複合体ならびに固体高分子型燃料電池。 |
JP2013221086A (ja) * | 2012-04-17 | 2013-10-28 | Sumitomo Chemical Co Ltd | ポリアリーレン及びその製造方法 |
Cited By (3)
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JP2019502249A (ja) * | 2016-01-07 | 2019-01-24 | ケーディー イノヴェイション リミテッドKd Innovation Ltd. | 直接発電及び熱ポンピングのための電気化学システム |
JP2020188012A (ja) * | 2020-07-22 | 2020-11-19 | ケーディー イノヴェイション リミテッドKd Innovation Ltd. | 直接発電及び熱ポンピングのための電気化学システム |
JP7039660B2 (ja) | 2020-07-22 | 2022-03-22 | ケーディー イノヴェイション リミテッド | 直接発電及び熱ポンピングのための電気化学システム |
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KR20150045391A (ko) | 2015-04-28 |
US10439245B2 (en) | 2019-10-08 |
US20160276687A1 (en) | 2016-09-22 |
KR101770449B1 (ko) | 2017-08-23 |
EP3024079A1 (en) | 2016-05-25 |
JP2016534195A (ja) | 2016-11-04 |
JP6566950B2 (ja) | 2019-08-28 |
EP3024079A4 (en) | 2017-01-25 |
EP3024079B1 (en) | 2018-02-21 |
CN105556726A (zh) | 2016-05-04 |
CN105556726B (zh) | 2018-09-14 |
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