WO2009134039A2 - 무기 이온 전도막과 이를 포함하는 연료 전지 및 그 제조 방법 - Google Patents
무기 이온 전도막과 이를 포함하는 연료 전지 및 그 제조 방법 Download PDFInfo
- Publication number
- WO2009134039A2 WO2009134039A2 PCT/KR2009/002183 KR2009002183W WO2009134039A2 WO 2009134039 A2 WO2009134039 A2 WO 2009134039A2 KR 2009002183 W KR2009002183 W KR 2009002183W WO 2009134039 A2 WO2009134039 A2 WO 2009134039A2
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- WIPO (PCT)
- Prior art keywords
- inorganic
- metal
- ion conductive
- metal plate
- fuel cell
- Prior art date
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- 239000000446 fuel Substances 0.000 title claims abstract description 62
- 239000012528 membrane Substances 0.000 title claims abstract description 59
- 229910001410 inorganic ion Inorganic materials 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 77
- 239000002184 metal Substances 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims description 28
- 239000003054 catalyst Substances 0.000 claims description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000008151 electrolyte solution Substances 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 125000001174 sulfone group Chemical group 0.000 claims description 7
- -1 hydrogen ions Chemical class 0.000 claims description 6
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910000510 noble metal Inorganic materials 0.000 claims description 5
- 229910052707 ruthenium Inorganic materials 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 239000003929 acidic solution Substances 0.000 claims description 3
- 238000010494 dissociation reaction Methods 0.000 claims description 3
- 208000018459 dissociative disease Diseases 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 239000002198 insoluble material Substances 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 14
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 31
- 150000002500 ions Chemical class 0.000 description 24
- 230000008569 process Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 10
- 239000002861 polymer material Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002048 anodisation reaction Methods 0.000 description 4
- 239000003574 free electron Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000007743 anodising Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H01M8/02—Details
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- H—ELECTRICITY
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
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- B01D67/0039—Inorganic membrane manufacture
- B01D67/0053—Inorganic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/006—Inorganic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods
- B01D67/0065—Inorganic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods by anodic oxidation
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D11/26—Anodisation of refractory metals or alloys based thereon
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- 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
- H01M8/0289—Means for holding the electrolyte
- H01M8/0293—Matrices for immobilising electrolyte solutions
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- H—ELECTRICITY
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- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
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- 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
- C08J2327/00—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 at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
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- H—ELECTRICITY
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- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to an inorganic ion conductive membrane, a fuel cell including the same, and a method for manufacturing the same. More specifically, by preparing an inorganic ion conductive membrane made of an inorganic coating by using an anodic oxidation reaction, and applying the same to a fuel cell, The present invention relates to an inorganic ion conductive membrane, a fuel cell, and a method of manufacturing the same, which can stably operate at all temperatures, exhibit high performance, and provide a fuel cell free of fuel leakage.
- a fuel cell is a device that uses a current generated as a fuel when hydrogen ions and oxygen react. Specifically, when hydrogen or hydrocarbon is applied to one side of the ion conductive membrane and oxygen or air is applied to the other side, hydrogen is dissociated by the catalyst and divided into positrons and electrons on the fuel side. It reacts with oxygen to produce water, and the generated electrons are used as power.
- Fuel cells are classified into various types according to the fuel used, the structure, the operation method, etc. Among them, in the case of a hydrogen fuel cell and a methanol fuel cell, an ion conductive membrane made of a polymer material is used as the ion conductive membrane.
- a typical ion conductive membrane of such a polymer material is sulfonated tetrafluoroethylene-based polymer membrane (trade name: Nafion of DuPont).
- This is a structure in which a perfluorovinyl ethyl group terminated with a sulfone group is attached to a polymer backbone composed of sulfonated tetrafluoroethylene, and according to an analysis of a cluster-network model among various structural models, an ion cluster of an inverted micelle structure is continuously fluorocarbon. It is disposed inside the lattice and is formed between micelles, and an ion transfer path is generated through pores having a diameter of about 10 ⁇ 10 ⁇ 10 m.
- the pores containing a seed paper having a similar positron conduction function therein can be used as an ion conductive membrane of a fuel cell.
- Such a polymer ion conductive membrane has the following problems.
- the temperature of the membrane also changes as the driving temperature of the fuel cell changes.
- the distance between the intermolecular bonds also changes in the ion conductive membrane.
- the diameter of the ion transport path will change.
- a crossover phenomenon occurs in which fuels such as hydrogen or hydrocarbons invade through the membrane and not only hydrogen ions are transferred during operation of the fuel cell, and ultimately, polarization occurs between the cathode and the anode inside the fuel cell. This causes a problem in that the performance of the fuel cell is drastically reduced.
- the ion-conducting membrane used in the fuel cell should have a strong characteristic against mechanical impact such as a change in pressure due to its characteristics. Since the ion-conducting membrane made of a polymer is weak to such a physical shock, performance also deteriorates when used for a long time. .
- the ion conductive membrane of the polymer material is in direct physical contact with the chemical substance. Due to the nature of the polymer, such a contact causes an undesirable chemical reaction, and as a result, there is a possibility of deteriorating the material constituting the ion conductive membrane.
- the fuel cell must be operated in a very limited operating temperature range in order not to damage the polymer material, so there is also a problem of giving up various advantages obtained by operating at a high temperature.
- the present invention is to solve the above-mentioned problems of the prior art, by making the ion conductive membrane of the fuel cell an inorganic material rather than a polymer material, it can operate at high temperatures without limiting the temperature, and thus various advantages obtained at high temperatures It aims at maximizing the performance of a fuel cell simultaneously with obtaining.
- Another object of the present invention is to use an ion conductive membrane of a fuel cell as an inorganic material so that a stabilized fuel cell can be obtained without leakage of fuel even if the temperature changes.
- another object of the present invention is to configure an ion conductive membrane of a fuel cell with an inorganic ion conductive membrane having no elasticity in a fuel cell, thereby causing problems in existing fuel cells, that is, a problem of lowering reliability due to the presence of elasticity. It is possible to solve the problem, and to provide a fuel cell resistant to physical shock and high activity.
- a conductive wire having the same material as the metal plate at a position spaced a predetermined distance from the metal plate to apply a cathode current, and to apply the anode current to the metal plate.
- the method may further include removing at least a portion of the metal tube or the metal plate remaining after the inorganic film is formed using an etching method.
- the metal tube or the metal plate is etched with a base solution to remove oxides present in the metal tube or the metal plate, and immersed in a weakly acidic solution to the metal tube or the metal plate. Removing the insoluble matter present may be further included.
- the acidic electrolyte may be a sulfuric acid solution.
- an inorganic ion conductive film including a plurality of pores is provided as an inorganic film.
- the pores may have a diameter of 10nm ⁇ 150 ⁇ m.
- the thickness of the inorganic coating may be 0.1 ⁇ 500 ⁇ m.
- a fuel cell manufacturing method is provided.
- a conductive wire of the same material as the metal plate at a position spaced a predetermined distance from the metal plate to apply a cathode current, and to apply a positive current to the metal plate
- B adding an electrolyte solution to the metal plate and the conductive wire to form an inorganic ion conductive film by forming an inorganic film including a plurality of pores on at least one surface of the metal plate to which the anode current is applied, ( c) removing at least a portion of the metal plate remaining after the inorganic film is formed using an etching method, and (d) forming a catalyst layer by supporting a catalyst mother liquid of a noble metal series on both surfaces of the inorganic film.
- a fuel cell manufacturing method is provided.
- the method of manufacturing the fuel cell may further include (e) contacting the catalyst layer with an organic solution including a sulfone group to fix the sulfone group enabling the conduction of hydrogen ions to the pores of the inorganic film.
- the inside or one surface of the inorganic film may be exposed to hydrogen or hydrocarbon, and the outside or the other surface of the inorganic film may be further exposed to air or oxygen.
- the step (d) may include supporting a mixture catalyst solution of platinum and ruthenium on an inner wall of the inorganic film and a platinum solution on an outer wall.
- the step (d) may include supporting a mixture catalyst solution of platinum and ruthenium on one surface of both surfaces of the inorganic film, and supporting the platinum solution on the other surface.
- a fuel cell comprising an inorganic ion conductive membrane including a plurality of pores as an inorganic coating.
- the fuel cell may further include a catalyst layer formed on both surfaces of the inorganic ion conductive membrane and having an activity in a hydrogen dissociation reaction.
- an inorganic ion conductive membrane instead of a polymer material as an ion conductive membrane of a fuel cell, it can be operated at a high temperature without limiting the temperature, thereby obtaining various advantages that can be obtained at a high temperature. You can maximize performance.
- the ion conductive membrane of the fuel cell an inorganic ion conductive membrane, since the pore size, which is an ion transfer path, does not change even when the temperature changes, a stabilized fuel cell can be obtained without leakage of fuel or the like. .
- the ion conductive membrane of the fuel cell is composed of an inorganic ion conductive membrane having no elasticity, it is possible to solve a problem in the existing fuel cell, that is, a problem of deterioration in reliability due to the presence of elasticity, which is resistant to physical impact, and its activity It is possible to obtain a high fuel cell.
- FIG. 1 and 2 are process charts illustrating a manufacturing process of an inorganic ion conductive membrane according to an embodiment of the present invention.
- FIG. 3 is a diagram illustrating a part of a fuel cell including an inorganic ion conductive membrane according to an embodiment of the present invention.
- Anodic oxidation is an oxidation phenomenon occurring during anodization, and by using this, a process of growing an oxide or nitride film formed on a metal surface using an electrolytic reaction can be performed.
- the acidic electrolyte solution and the current can come into contact with the metal substrate existing under the oxide film, and as a result, a much thicker film than the oxide film formed by the spontaneous metal oxidation can be formed.
- the film formed through such a process has various properties depending on the process conditions.
- a thick film is formed by using a low concentration of electrolyte and a high current or voltage.
- the oxide film thus formed has various thicknesses in the range of 0.5 to 150 ⁇ m.
- such an oxide film has high corrosion resistance and friction resistance and regular pores are formed on the surface, so that a solution such as a dye can penetrate and can be used for various purposes.
- anodic oxidation process is classified into three aluminum anodization processes. These three methods are anodizing process, sulfuric acid anodizing process and sulfuric acid hard anodizing process, respectively, and the physical and chemical properties of the film produced by each process are different.
- FIGS. 1 and 2 a manufacturing process of an inorganic ion conductive membrane according to an embodiment of the present invention will be described.
- the inorganic ion conductive membrane according to the present invention is produced using a conductive metal. If the conductive metal can be used as a base material of the inorganic ion conductive film of the present invention, for the convenience of description, it will be described by exemplifying that the conductive metal is aluminum.
- a hollow cylindrical aluminum tube 110 is prepared, and the inside and the outside of the prepared aluminum tube are degreased.
- a degreasing method a conventional method can be used, and as an example, a degreasing method using an acid solution can be used.
- the degreased aluminum tube 110 is etched to remove metal oxides contained in aluminum.
- a basic etching method for exposing the aluminum tube 110 to a basic solution may be used as the etching.
- the aluminum tube 110 is immersed in a weakly acidic solution to remove insoluble materials.
- the aluminum tube 130 or the aluminum wire is disposed at the center of the aluminum tube 110 to apply a cathode current, and the aluminum tube 110 is disposed. ), An anodic current is applied, so that the aforementioned anodic oxidation reaction can occur.
- the drawing is made of aluminum in the form of a tube 110 and an aluminum wire 130 to which a cathode current is applied is disposed therein
- the present invention is not limited thereto, and aluminum may be formed in a plate form. That is, the anode current may be applied to the aluminum plate, and the cathode current may be applied to the aluminum line disposed to be spaced apart from the aluminum plate by a predetermined distance.
- the acidic electrolyte is circulated inside the aluminum tube 110. It is preferable to use a low temperature sulfuric acid solution as the acidic electrolyte solution.
- Aluminum oxide which is aluminum oxide, is gradually deposited on the inner wall of the aluminum tube, which is formed as an alumina coating.
- the acidic electrolyte solution dissolves the alumina film finely, and when the dissolution rate and the growth rate of the alumina film are balanced, pores may be formed in the alumina film. . These pores may be uniform pores having a diameter of 10 ⁇ 150 ⁇ m.
- a thick alumina film having uniform pores is formed on the inner wall of the aluminum tube 110.
- the thickness of the coating may be about 0.1 to 500 ⁇ m.
- the remaining aluminum tube 110 is removed. Removal of the aluminum tube 110 may be made by an etching method.
- a portion of the aluminum tube 110 may be left for use as a current collector.
- porous aluminum film that is, an inorganic ion conductive film
- the porous inorganic membrane thus formed may be used for gas reactions such as exhaust gas purification as in the prior art, or may be used as a light absorbing layer or an electron acceptor in a solar cell.
- the solar cell operates in such a way that electrical energy is generated as free electrons generated by the absorbed sunlight reaching the electron receiving layer (p-type layer) included in the solar cell are continuously attracted to the n-type layer.
- the representative methods for increasing the efficiency of the solar cell include a method of improving the absorption rate of light incident on the solar cell and a method of generating a large number of free electrons using the absorbed solar light.
- the porous inorganic membrane according to the present invention When the porous inorganic membrane according to the present invention is applied to a solar cell, the light absorption rate can be increased and the generation of free electrons can be promoted, thereby improving battery efficiency.
- the diffuse reflection of the incident light is promoted due to the porous property, and thus the absorption rate of sunlight can be increased.
- the base material of the inorganic film is made of a material having high photosensitivity, free electron generation due to absorption of sunlight is promoted, contributing to improvement of battery efficiency.
- applying the inorganic film according to an embodiment of the present invention to the solar cell can improve the high light absorption and cell efficiency without the need for a separate component for improving the absorption of sunlight.
- the catalyst layer 230 is formed on an inner wall and an outer wall of the inorganic ion conductive film 210 formed of the alumina film by supporting a catalyst mother liquid of a noble metal series having an active hydrogen dissociation reaction.
- an inner wall of the inorganic ion conductive membrane 210 carries a catalyst mother liquid such as a mixture solution of platinum and ruthenium, and a catalyst mother liquid such as a platinum solution is supported on the outer wall.
- the catalyst layer can be formed by supporting the catalyst mother liquid of the noble metal series on both sides of the inorganic ion conductive membrane.
- the organic layer containing a sulfone group is brought into contact with the catalyst layer 230. This is to fix sulfone groups that enable the conduction of hydrogen ions to the internal pores of the inorganic ion conductive film 210 which is an alumina film.
- an anode terminal is formed on the outer wall of the structure 200 including the inorganic ion conductive membrane 210 and the catalyst layer 230, and a cathode terminal is formed on the inner wall, and then a hydrocarbon such as hydrogen or methanol is passed through. The outside is exposed to air or oxygen to complete the fuel cell.
- the fuel cell thus manufactured can be operated at high temperature without limiting temperature by using an inorganic ion conductive membrane instead of a polymer material, thereby obtaining various advantages obtained at high temperature and maximizing its performance. .
- a stabilized fuel cell can be obtained without leakage of fuel or the like.
- the inorganic ion conductive membrane is used instead of the polymer material, it is possible to obtain a fuel cell that is resistant to physical impact and has high activity.
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Abstract
Description
Claims (16)
- (a) 금속 관의 내부에 상기 금속과 동일한 재질의 도선을 배치하여 음극 전류를 인가하고, 상기 금속 관에는 양극 전류를 인가하는 단계, 및(b) 상기 금속 관과 상기 도선에 전해액을 가하여, 상기 양극 전류가 인가된 상기 금속 관의 내벽과 외벽 중 적어도 일부에 다수의 기공을 포함하는 무기 피막을 형성시키는 단계를 포함하는 무기 이온 전도막의 제조 방법.
- (a) 금속 판과 소정 거리 이격된 위치에 상기 금속 판과 동일한 재질의 도선을 배치하여 음극 전류를 인가하고, 상기 금속 판에는 양극 전류를 인가하는 단계, 및(b) 상기 금속 판과 상기 도선에 전해액을 가하여, 상기 양극 전류가 인가된 상기 금속 판의 적어도 일면에 다수의 기공을 포함하는 무기 피막을 형성시키는 단계를 포함하는 무기 이온 전도막의 제조 방법.
- 제1항 또는 제2항에 있어서,상기 (b) 단계 이후에,상기 무기 피막 형성 후 잔류하는 상기 금속 관 또는 상기 금속 판 중 적어도 일부를 에칭법을 이용하여 제거하는 단계를 더 포함하는 무기 이온 전도막의 제조 방법.
- 제1항 또는 제2항에 있어서,상기 (a) 단계 이전에,상기 금속 관 또는 상기 금속 판을 염기 용액으로 에칭하여 상기 금속 관 또는 상기 금속 판에 존재하는 산화물을 제거하고, 약산성 용액으로 디스머트하여 상기 금속 관 또는 상기 금속 판에 존재하는 불용성 물질을 제거하는 단계를 더 포함하는 무기 이온 전도막의 제조 방법.
- 제1항 또는 제2항에 있어서,상기 산성 전해액은 황산 용액인, 무기 이온 전도막의 제조 방법.
- 무기 피막으로서, 다수의 기공을 포함하는 무기 이온 전도막.
- 제6항에 있어서,상기 기공은 10nm~150㎛의 직경을 갖는, 무기 이온 전도막.
- 제6항에 있어서,상기 무기 피막의 두께는 0.1~500㎛인, 무기 이온 전도막.
- (a) 금속 관의 내부에 상기 금속과 동일한 재질의 도선을 배치하여 음극 전류를 인가하고, 상기 금속 관에는 양극 전류를 인가하는 단계,(b) 상기 금속 관과 상기 도선에 전해액을 가하여, 상기 양극 전류가 인가된 상기 금속 관의 내벽과 외벽 중 적어도 일부에 다수의 기공을 포함하는 무기 피막을 형성시킴으로써 무기 이온 전도막을 형성하는 단계,(c) 상기 무기 피막 형성 후 남아있는 상기 금속 관 중 적어도 일부를 에칭법을 이용하여 제거하는 단계, 및(d) 상기 무기 피막의 내벽과 외벽에 귀금속 계열의 촉매 모액을 담지시켜 촉매층을 형성하는 단계를 포함하는 연료 전지의 제조 방법.
- (a) 금속 판과 소정 거리 이격된 위치에 상기 금속 판과 동일한 재질의 도선을 배치하여 음극 전류를 인가하고, 상기 금속 판에는 양극 전류를 인가하는 단계, 및(b) 상기 금속 판과 상기 도선에 전해액을 가하여, 상기 양극 전류가 인가된 상기 금속 판의 적어도 일면에 다수의 기공을 포함하는 무기 피막을 형성시킴으로써 무기 이온 전도막을 형성하는 단계,(c) 상기 무기 피막 형성 후 남아있는 상기 금속 판 중 적어도 일부를 에칭법을 이용하여 제거하는 단계, 및(d) 상기 무기 피막의 양면에 귀금속 계열의 촉매 모액을 담지시켜 촉매층을 형성하는 단계를 포함하는 연료 전지의 제조 방법.
- 제9항 또는 제10항에 있어서,(e) 상기 촉매층에 술폰기를 포함하는 유기 용액을 접촉시켜, 수소 이온의 전도를 가능하게 하는 술폰기를 상기 무기 피막의 기공에 정착시키는 단계를 더 포함하는 연료 전지의 제조 방법.
- 제11항에 있어서,상기 (e) 단계 이후에,상기 무기 피막의 내부 또는 일면은 수소 또는 탄화수소에 노출되도록 하고, 상기 무기 피막의 외부 또는 타면은 공기 또는 산소에 노출되도록 하는 단계를 포함하는, 연료 전지의 제조 방법.
- 제9항에 있어서,상기 (d) 단계는,상기 무기 피막의 내벽에는 백금과 루테늄의 혼합물 촉매 용액을 담지시키고, 외벽에는 백금 용액을 담지시키는 단계를 포함하는, 연료 전지의 제조 방법.
- 제10항에 있어서,상기 (d) 단계는,상기 무기 피막의 양면 중 일면에는 백금과 루테늄의 혼합물 촉매 용액을 담지시키고, 타면에는 백금 용액을 담지시키는 단계를 포함하는, 연료 전지의 제조 방법.
- 무기 피막으로서, 다수의 기공을 포함하는 무기 이온 전도막을 포함하는, 연료 전지.
- 제15항에 있어서,상기 무기 이온 전도막의 양면에 형성되며, 수소 해리 반응에 활성을 가지는 촉매층을 더 포함하는 연료 전지.
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JP2011507340A JP2011518958A (ja) | 2008-04-29 | 2009-04-27 | 無機イオン伝導膜とこれを含む燃料電池及びその製造方法 |
KR1020097008582A KR101226965B1 (ko) | 2008-04-29 | 2009-04-27 | 무기 이온 전도막과 이를 포함하는 연료 전지 및 그 제조 방법 |
EP09738945.6A EP2278651B1 (en) | 2008-04-29 | 2009-04-27 | Inorganic ion conductive membrane, fuel cell containing the same and manufacturing method thereof |
US12/990,218 US8728681B2 (en) | 2008-04-29 | 2009-04-27 | Inorganic conductive membrane, fuel cell containing the same, and method for manufacturing thereof |
KR1020127002926A KR101295840B1 (ko) | 2008-04-29 | 2009-04-27 | 무기 이온 전도막과 이를 포함하는 연료 전지 및 그 제조 방법 |
CN2009801152808A CN102017262B (zh) | 2008-04-29 | 2009-04-27 | 无机离子电导膜、包括该无机离子电导膜的燃料电池及其制造方法 |
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KR101349076B1 (ko) * | 2011-07-20 | 2014-01-14 | 현대자동차주식회사 | 연료전지 스택용 매니폴드 블록의 산화층 형성 장치 및 방법 |
KR101912768B1 (ko) * | 2017-03-23 | 2018-10-30 | 한국화학연구원 | 전이금속이 담지된 설폰화 고분자-아민계 고분자착체 분리막 및 이를 이용한 올레핀/파라핀 분리공정 |
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KR20090002183A (ko) | 2007-06-20 | 2009-01-09 | (주)케이티에프테크놀로지스 | 셀 방송 서비스를 이용한 위치 정보의 제공 방법 및 시스템 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011084000A2 (ko) * | 2010-01-07 | 2011-07-14 | 주식회사 이엠따블유에너지 | 양성자 전도성 막, 그 제조 방법 및 이를 포함하는 연료전지 |
WO2011084000A3 (ko) * | 2010-01-07 | 2011-11-03 | 주식회사 이엠따블유에너지 | 양성자 전도성 막, 그 제조 방법 및 이를 포함하는 연료전지 |
Also Published As
Publication number | Publication date |
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WO2009134039A3 (ko) | 2010-02-25 |
EP2278651A2 (en) | 2011-01-26 |
KR20120045003A (ko) | 2012-05-08 |
EP2278651B1 (en) | 2016-12-07 |
KR101295840B1 (ko) | 2013-08-12 |
CN102017262A (zh) | 2011-04-13 |
JP2011518958A (ja) | 2011-06-30 |
WO2009134039A9 (ko) | 2010-05-06 |
KR20100013306A (ko) | 2010-02-09 |
CN102017262B (zh) | 2013-10-09 |
US20110045379A1 (en) | 2011-02-24 |
KR101226965B1 (ko) | 2013-01-28 |
EP2278651A4 (en) | 2014-01-15 |
US8728681B2 (en) | 2014-05-20 |
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