WO2004090015A1 - 架橋性イオン伝導性樹脂、並びにそれを用いてなるイオン伝導性高分子膜、結着剤及び燃料電池 - Google Patents
架橋性イオン伝導性樹脂、並びにそれを用いてなるイオン伝導性高分子膜、結着剤及び燃料電池 Download PDFInfo
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- WO2004090015A1 WO2004090015A1 PCT/JP2004/004392 JP2004004392W WO2004090015A1 WO 2004090015 A1 WO2004090015 A1 WO 2004090015A1 JP 2004004392 W JP2004004392 W JP 2004004392W WO 2004090015 A1 WO2004090015 A1 WO 2004090015A1
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- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000003930 superacid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2256—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
-
- 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
- B01D71/52—Polyethers
- B01D71/522—Aromatic polyethers
- B01D71/5222—Polyetherketone, polyetheretherketone, or polyaryletherketone
-
- 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
- B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/48—Polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/02—Condensation polymers of aldehydes or ketones with phenols only of ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
-
- 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
-
- 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
-
- 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
- H01M8/1072—Polymeric electrolyte materials characterised by the manufacturing processes by chemical reactions, e.g. insitu polymerisation or insitu crosslinking
-
- 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
- H01M8/1081—Polymeric electrolyte materials characterised by the manufacturing processes starting from solutions, dispersions or slurries exclusively of polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08J2371/12—Polyphenylene oxides
-
- 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
-
- 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 invention is applicable to a fuel cell using hydrogen, alcohol, or the like as a fuel, and has high ion conductivity, excellent heat resistance, water resistance, and solvent resistance.
- the present invention relates to an ion conductive polymer membrane, an ion conductive binder, an electrode forming composition and an electrode, and a fuel cell using the same. Background art
- a fuel cell is a device that electrochemically oxidizes a fuel such as hydrogen or methanol using oxygen or air, thereby converting the chemical energy of the fuel into electric energy and extracting it.
- Such fuel cells are classified into a phosphoric acid type, a molten carbonate type, a solid oxide type, and a polymer electrolyte type depending on the type of electrolyte used.
- Phosphoric acid fuel cells have already been put into practical use for electric power.
- a phosphoric acid fuel cell must be operated at a high temperature (around 200 ° C), which results in a long start-up time, difficult system miniaturization, and low proton conductivity of phosphoric acid.
- the drawback was that it was not possible to extract large currents.
- polymer electrolyte fuel cells have an operating temperature of about 80 to about L 0 ° C at the maximum.
- the internal resistance in the fuel cell can be reduced, so that the operation can be performed at a high current and the size can be reduced. Because of these advantages, research on polymer electrolyte fuel cells has become active. T / JP2004 / 004392
- the polymer electrolyte membrane used in this polymer electrolyte fuel cell is required to have high ionic conductivity for protons involved in the electrode reaction of the fuel cell.
- an ion conductive polymer electrolyte membrane material a fluoropolymer having a super strong acid group such as Nafion (registered trademark, manufactured by DuPont) or Daw membrane (manufactured by Dow) is known.
- Nafion registered trademark, manufactured by DuPont
- Daw membrane manufactured by Dow
- these polymer electrolyte membrane materials have a problem that they are very expensive because they are fluorine-based polymers.
- the polymer in order to impart ion conductivity, the polymer must have a residue that can be dissociated into ions, selected from carboxylic acid groups, sulfonic acid groups, and phosphoric acid groups. Although described in 3 gazettes, no disclosure was made of the polymer skeleton or ionic conductivity.
- ether ketones containing a sulfonic acid group are described in Macromol. Chem. Pys., 199, 1421-1426 (1998), Polymer, 40, 795-799 (1999), Polymer, 42, 3293-3296 (2001). And so on. These documents describe a sulfonic acid group-containing polyether ketone obtained by copolymerizing a sulfonic acid-containing monomer and a sulfonic acid-free monomer.
- a highly sulfonated polymer is required to obtain an ion-conductive polymer electrolyte membrane having high proton conductivity, but it has been pointed out that such a polymer has poor water resistance.
- the present invention has been made to solve such problems of the prior art, and comprises a crosslinkable polyetherketone having a protonic acid group and having high ion conductivity and excellent heat resistance and water resistance. It is an object of the present invention to provide a conductive ion-conductive resin, an ion-conductive polymer membrane using the same, an ion-conductive binder, a composition and an electrode for forming an electrode, and a fuel cell using the same. . Disclosure of the invention
- the crosslinkable ion conductive resin according to the present invention comprises a crosslinkable polyether ketone having a repeating unit represented by the following general formula (1).
- a and A r 2 is at least two of them have two or more aromatic rings respectively but a divalent group which is connected by an alkylene bond, hydrogen of aromatic ring-halogenated And may be substituted with an alkyl group having 1 to 10 carbon atoms, a halogenated hydrocarbon group having 1 to 10 carbon atoms or a protonic acid group, wherein the alkylene is bonded to at least one aromatic ring.
- a group in which the carbon atom is bonded to at least one hydrogen atom and has 1 to 10 carbon atoms, and Ar 1 and Ar 2 may be the same or different.
- X represents a sulfonic acid group, a carboxylic acid group, a phosphoric acid group, a sulfonimide group, a protonic acid group selected from alkylsulfonic acid groups having 1 to 10 carbon atoms, or a group of a metal salt thereof.
- y is an integer from 0 to 4, and at least x + y is 1 or more There.
- a and b is an integer of 1 or more.
- a crosslinked product obtained by crosslinking the crosslinkable ion conductive resin with at least one of light, heat and electron beam.
- the ion conductive polymer membrane according to the present invention comprises the crosslinkable ion conductive resin or a crosslinked product thereof. Furthermore, the ion conductive binder according to the present invention comprises the crosslinkable ion conductive tree.
- the electrode forming composition according to the present invention includes the ion-conductive binder and an electrode material, and the electrode according to the present invention includes the electrode forming composition.
- a fuel cell using the ion-conductive polymer membrane and / or the ion-conductive binder.
- FIG. 1 is a schematic diagram showing a cross-sectional structure of a fuel cell used in an example of the present invention.
- FIG. 2 is a block flow diagram showing a fuel cell evaluation device used for evaluating a fuel cell in the embodiment.
- the symbols in FIGS. 1 and 2 indicate the following. 1 Electrolyte membrane, 2, 2, Catalyzed electrode, 3 Gasket, 4 Separator, 5 Force pressure plate, .6 Gas flow path, 7 Fastening port, 8 Fuel cell, 9 Humidifying publishing tank, 10 Electronics Load, 1 1 Mass flow controller, 1 2 Liquid feed pump Best mode for carrying out the invention
- the crosslinkable ion-conductive resin of the present invention is composed of a protonic acid group-containing polyester ketone having a crosslinkable group, and has a crosslinkable group which is not derived from pro-1, acid groups and can be bridged without generating a desorbing component. It is a crosslinkable ion conductive resin containing a proton acid group.
- Examples of the bridging group of the present invention which is not derived from a protonic acid group and can be crosslinked without generation of a elimination component include, specifically, a combination of a carbonyl group and an alkylene group connecting an aromatic ring. .
- the alkylene group a small number of directly bonded to the aromatic ring
- At least one of the carbon atoms is preferably a group having 1 to 10 carbon atoms bonded to at least one hydrogen atom, and more preferably a group having 1 to 3 carbon atoms in the main chain.
- Crosslinkable aromatic resins that can have a carboxyl group as a crosslinking group and an alkylene group linking an aromatic ring together with a protonic acid group in the molecule include ether groups and carbazole as a linking group for an aromatic ring.
- Aromatic polyetherketone having a group, aromatic polyamide, aromatic polyimide, aromatic polyamideimide, and aromatic polyazole can be exemplified.
- aromatic polyethers are preferred because of their excellent solvent solubility when not cross-linked and ease of processing such as film formation, and because they are not hydrolyzed by hot water, acids, alkaline water, alcohols, etc. Ketones are most preferred.
- This crosslinkable polyetherketone preferably has a repeating unit represented by the following general formula (1). And, a high molecular film using the resin and / or a crosslinked product thereof is suitable as an ion conductive polymer film for a fuel cell.
- ⁇ is a divalent group having two or more aromatic rings, at least two of which are connected by an alkylene bond. May be substituted with a halogen, an alkyl group having 1 to 10 carbon atoms, a halogenated hydrocarbon group having 1 to 10 carbon atoms, or a protonic acid group.
- X is a group having 1 to 10 carbon atoms in which the bonded carbon is bonded to at least one hydrogen, and A ri and Ar 2 may be the same or different.
- X and y are integers from 0 to 4, and at least X + y is 1 or more
- a and b are integers of 1 or more.
- An alkylene group connecting the aromatic rings constituting A r ⁇ or A r 2 of the general formula (1) Is preferably one in which at least one carbon atom directly bonded to an aromatic ring is bonded to hydrogen, and more preferably an alkylene group having 1 to 10 carbon atoms in which the main chain has 1 to 3 carbon atoms.
- a methylene group is most preferable from the viewpoint of the reactivity at the time of crosslinking ⁇ the heat resistance of the polyether ketone.
- aromatic ring constituting A ri and Ar 2 include a 1,4-phenylene group, a 1,3-phenylene group, and a 1,2-phenylene group.
- a bond connecting these aromatic rings in addition to the aforementioned alkylene group in which at least one carbon atom directly bonded to the aromatic ring is bonded to hydrogen, a direct bond, one CO—, one S 0 2— , One S—, —CF 2 —, — C (CH 3 ) 2 —, —C (CF 3 ) 2 —, —0—, 9, 9 monofluorene group and the like can be used.
- Ar and Ar 2 in the above formula (1) are preferably the following formulas (I) and / or ( ⁇ ).
- the repeating unit of the following formula (III) having a protonic acid group in the above formula (1) is 10 to 90 mol based on all repeating units. /. It is preferred to contain.
- the protonic acid groups represented by X and Y in the above formula (1) include a sulfonic acid group, a carboxylic acid group, a phosphoric acid group, a sulfonimide group, and an alkyl having 1 to 10 carbon atoms. It is selected from sulfonic acid groups, and specific examples include sulfonic acid groups, carboxylic acid groups, phosphonic acid groups, and sulfonimide groups represented by the following formulas (a) to (d).
- the content of protonic acid groups in the crosslinkable ion conductive resin of the present invention is not particularly limited, but is preferably from 200 to 5000 g / mo1, more preferably from 200 to 1000 gZmo1, in terms of ion exchange group equivalent.
- the ion exchange group equivalent is defined as the weight of the resin per mole of the protonic acid group, and means the reciprocal of the number of moles of the protonic acid group per unit weight of the resin. That is, the smaller the ion exchange group equivalent, the larger the amount of protonic acid groups per unit weight of the resin.
- the solubility of the resin in water when not cross-linked is remarkably high, and it becomes difficult to produce and purify the resin (removal of inorganic acids and inorganic salts from the resin). If the ion exchange group equivalent is too large, even a non-crosslinked resin has high water resistance and high methanol resistance (low methanol permeation rate), and requires less crosslinking. However, if the ion exchange group equivalent is too large, a high output fuel cell with low ion conductivity cannot be obtained.
- aromatic dihydroxy compound represented by the following formula includes the following compounds.
- Z6Cl700 / l700Zdf / X3d 0060 contract OAV
- Examples of the benzophenone compound used in synthesizing the protonic acid group-containing crosslinkable polyetherketone include a benzophenone compound having a protonic acid group represented by the following general formula (4).
- the compounds shown below are exemplified.
- X, Y, X and y have the same meaning as in the formula (1).
- Z is a halogen atom or a nitro group.
- benzophenone compound not containing a protonic acid group represented by the above formula (5) include the following compounds.
- the proton-acid group-containing crosslinkable polyetherketone of the present invention comprises one aromatic dihalide in addition to the benzophenone compounds represented by the general formulas (4) and (5) for the purpose of improving or modifying the performance. Copolycondensation can also be carried out using the above.
- aromatic dihalides that can be used include 4,4, dichlorodiphenylsulfone, 2,6-dichloro-open pyridine, 2,6-dichloro-open benzonitrinole, and 2,6-diph / leo-benzo benzonitrinole. And the like.
- the proton-acid group-containing crosslinkable polyether ketone of the present invention is used together with the aromatic diol compound represented by the general formulas (2) and (3) together with other aromatic diols for the purpose of improving or modifying the performance. Copolycondensation can also be carried out using one or more compounds. Specific examples of the aromatic diol compounds that can be used include:
- Catalysts include alkaline metal compounds, alkaline earth metal metals, basic metal compounds such as zinc oxide, various metal carbonates, acetates, hydroxides, quaternary ammonium salts, phospho-pium salts, Organic base-containing metals and the like can be mentioned.
- the amount of these catalysts used is preferably 0.1 to 0.0 mole ratio per mole of the aromatic dihydroxy compound used. More preferably, the molar ratio is from 5 to 2.0.
- the total amount of the benzophenone compounds represented by the general formulas (4) and (5) is preferably 0.9 to 1.1 mole ratio per 1 mole of the aromatic dihydroxy compound used.
- the molecular weight of the resulting polyetherketone can be controlled.
- This molar ratio is more preferably 0.92 to 1.08 molar ratio, more preferably 0.94 to 1-06 monole ratio, and most preferably 0.95 to 1.05. .
- Mouth A method in which an aromatic dihydroxy compound is reacted with a basic catalyst to form a salt, and then a benzophenone compound is added thereto to carry out the reaction.
- the reaction for producing the protonic acid group-containing crosslinkable polyetherketone according to the present invention is usually performed in a solvent.
- Solvents that can be used include
- 1,2-Dimethoxetane bis (2-methoxethyl) ether, 1,2-bis (2-methoxetoxy) ethane, tetrahydrofuran, bis [2- (2-methoxy) ether solvents Ethoxy) ethyl] ether, 1,4-dioxane, c) amine solvents such as pyridine, quinoline, isoquinoline, ⁇ -picoline, ⁇ -picoline, ⁇ -picoline, isofolone, piperidine, 2,4-monoretidine, 2,6 lutedin, trimethinoleamine, triethylamine, tripropylamine, triptylamine,
- solvents may be used alone or in combination of two or more. Further, one or more of the solvents shown in the following item e) can be used as a mixture. When used as a mixture, it is not always necessary to select a combination of solvents that dissolve each other at an arbitrary ratio, and even if the solvents are not mixed and are non-uniform, they can be used.
- the concentration of the reaction carried out in these solvents (hereinafter referred to as polycondensation concentration) is not particularly limited, but the concentration of the polycondensation carried out in the solvent is determined based on the total weight of all the solvents used and When the ratio of the total weight of the aromatic dihydroxy compound and the benzophenone compound used to the total weight of the total weight of the aromatic dihydroxy compound and the benzophenone compound combined was defined as a value expressed as a percentage, Preferred polycondensation concentrations are from 5 to 40%, more preferably from 8 to 35%, and most preferably from 10 to 30%.
- the aromatic dihydroxy compound of the general formula (2) or (3) is reacted with the benzophenone compound of the general formula (4) or (5) to form a protonic acid group according to the present invention.
- the resulting crosslinkable polyetherketone is obtained.
- Particularly preferred solvents in this reaction include the aprotic amide solvents described in the above item a) and the dimethyl sulfoxide described in the item d).
- the atmosphere is air, nitrogen, helium, neon, or argon, and is not particularly limited, but is preferably nitrogen argon, which is an inert gas.
- solvents may be used alone or in combination of two or more.
- the above solvents a) to d) can be used in combination with one or more of the solvents described above.
- the reaction temperature, reaction time and reaction pressure are not particularly limited, and known conditions can be applied. That is, the reaction temperature is preferably about 100 ° C to 300 ° C as an approximate range. However, it is more preferably in the range of 120 ° C. to 280 ° C., and most preferably in the range of 150 ° C. to 250 ° C.
- the reaction time varies depending on the type of the monomer used, the type of the solvent and the reaction temperature, but is preferably 1 to 48 hours, more preferably 5 to 20 hours. Also, the reaction pressure is sufficient at normal pressure.
- the temperature at the time of filtration is not particularly limited, and may be the reaction temperature or room temperature.
- the pressure at the time of filtration is not particularly limited, and may be any of normal pressure, pressurized pressure, or reduced pressure.
- a method for forming a proton-acid group-containing crosslinkable polyetherketone a method in which the solution obtained by filtration is applied as it is and dried to directly form a coating film, or Then, the solution is taken out, and then dried to obtain a polymer powder, which is again dissolved in the same or another solvent, and then coated and dried to form a coating film.
- the drying temperature at the time of drying the solution to form a coating film depends on the solvent used and is not particularly limited, but is preferably from 100 ° C to 300 ° C, preferably from 120 ° C to 28 ° C. 0 ° C, particularly preferably in the range of 150 ° C to 250 ° C.
- the drying time varies depending on the thickness of the coating film, but is preferably from 10 minutes to 20 hours, preferably from 20 minutes to 10 hours, and practically from 30 minutes to 5 hours.
- the reduced viscosity of the resulting protonic acid group-containing crosslinkable polyetherketone is from 0.1 to 5.0 d 1 / g (measured in dimethyl sulfoxide at a concentration of 0.5 g / d 1 at 35 ° C). , Preferably from 0.2 to 4.0 d 1 / g, more preferably from 0.3 to 3.0 d 1 / g. If the reduced viscosity is in this range, the mechanical properties of the obtained film are sufficient, and the viscosity of the solution obtained by dissolving the polymer in a solvent is appropriate, and it is easy to obtain a thick film.
- the proton-acid-group-containing crosslinkable polyetherketone according to the present invention can be used as a mixture of two or more types. Metals, glass, and carbon can be used in a range that does not impair the object of the present invention. Can be used as a mixture with a fiber-based ionic conductive resin or other general-purpose resin.
- the proton-acid group-containing crosslinkable polyetherketone may be used after being crosslinked, or two or more of the crosslinked products may be mixed, or a crosslinked product and a fiber made of metal, glass, or carbon may be used.
- 1 / ⁇ which is a fluorine-based ion conductive resin, can be used by mixing with other general-purpose resins.
- the protonic acid group-containing crosslinkable polyetherketone is preferably contained in an amount of at least 20 wt%, more preferably at least 50 wt%.
- the terminal group of the protonic acid group-containing crosslinkable polyether ketone used is not particularly limited.
- the functional group adjacent to the aromatic ring can be cross-linked with an alkyl or alkylene group directly bonded to the aromatic ring, ie, a CH bond of a primary, secondary or tertiary carbon adjacent to the aromatic ring.
- the carbonyl group can also crosslink with unsaturated bonds such as a carbon-carbon double bond or a carbon-carbon triple bond, a carbon-carbon double bond, a carbon-carbon bond adjacent to a nitrogen atom or an oxygen atom.
- crosslinking with a primary, secondary or tertiary carbon directly bonded to an aromatic ring is preferred in view of the stability of the resulting crosslinking and the ease of synthesis of the crosslinking group.
- the proton-acid group-containing crosslinkable polyetherketone of the present invention has, in the main chain, a carbonyl group and a preferable crosslinkable group of an alkylene bonding group directly bonded to an aromatic ring.
- the proton acid group-containing crosslinkable polyetherketone according to the present invention can be crosslinked by at least one of light (ultraviolet light), heat, and electron beam.
- the reaction mechanism relating to photocrosslinking is considered that at least one alkylene linking group of Ari and Ar2 present in the molecule is involved in the crosslinking reaction in the following manner.
- the following reaction mechanism is for the case where Ari and Ar2 to be crosslinked are as follows. fx
- the radical on benzophenone generated in the first stage of ultraviolet irradiation abstracts hydrogen from the methylene group. Subsequently, it is considered that photocrosslinking occurs as in the dimerization of the benzyl radical, the coupling reaction between the benzyl radical and the alcoholic carbon radical, and the dimerization of the alcoholic carbon radical.
- the light source used for photocrosslinking the crosslinkable polyetherketone having a protonic acid group of the present invention is not particularly limited, but usually a light source capable of irradiating ultraviolet light or visible light can be used. Specific examples include low-pressure mercury lamps, high-pressure mercury lamps, xenon lamps, metal halide lamps, and the like.
- the irradiation dose is usually 100 30000 m] / cm, preferably 500 20000 mJ / cm 2 , depending on the structure and thickness of the cross-linkable ion conductive resin to be irradiated.
- the method of supplying heat is not particularly limited, and heating by ordinary oven or the like is sufficient.
- the heating temperature and time vary depending on the structure of the cross-linkable polyether ketone used, but are usually 120 to 300 ° C for 0.1 to 180 minutes, preferably 150 to 250 ° C for 160 minutes.
- the ion-conducting polymer membrane according to the present invention preferably uses a cross-linkable ion-conducting resin composed of the above-mentioned proton-acid group-containing polyether ketone, but is used in combination with other various ion-conducting polymers. You can also. Examples of these are high fluorine Polymers with proton acid groups added to molecules, polyether ketone polymers, polyether sulfone polymers, polyphenylene sulfide polymers, polyimide polymers, polyamide polymers, epoxy polymers, polyolefin polymers, etc.
- the proton acid group examples include a sulfonic acid group, a carboxylic acid group, a phosphoric acid group, and a sulfonimide group. Further, an inorganic ion conductive material such as silica may be used. Further, two or more kinds of the above-mentioned proton-acid group-containing crosslinkable polyether ketones may be used as a mixture.
- the method for producing the ion-conductive polymer membrane according to the present invention is not particularly limited, and a known press method or cast method can be used.
- the thickness of the electrolyte membrane of the ion-conductive polymer membrane is not particularly limited, but is usually preferably 10 to 200 / zm, and more preferably 30 to: L00m. Within this range, sufficient film strength is obtained, and the film resistance is sufficiently low for practical use. That is, by shutting off the fuel between the positive electrode and the negative electrode of the battery and having sufficient ionic conductivity, it is possible to obtain excellent power generation performance as a fuel cell.
- the thickness of the membrane is too thin, the fuel crossover may not be sufficiently suppressed. If the thickness is too thick, the membrane resistance may be high and affect the power generation performance.
- the film thickness can be controlled by the conditions at the time of film formation, for example, the temperature and pressure during press molding, the gas concentration during casting, and the coating thickness.
- the method of crosslinking the ion-conducting polymer membrane of the present invention can be performed in the same manner as in the above-mentioned crosslinking of the ion-conductive resin.
- the film can be prepared after crosslinking the crosslinkable polyetherketone containing protonic acid groups, or two or more of the crosslinked products can be mixed, or the crosslinked product can be made of metal, glass, or carbon. It can be used by mixing with fiber-fluorinated ion conductive resin or other general-purpose resin.
- the protonic acid group-containing crosslinkable polyether ketone is preferably contained at 2 O wt ° / 0 or more, more preferably at 50 wt% or more.
- the ion conductive binder for a fuel cell according to the present invention will be specifically described.
- the proton-acid-group-containing crosslinkable ion-conductive resin of the present invention can be used in a conventionally-developed stainless steel.
- this resin Shows high ionic conductivity like the sulfonic acid group-containing polymer. Also, unlike the super-strong acid group-containing fluorine-based polymer which has been conventionally studied as a binder, this resin has a polar group such as an aromatic ring or an ether bond in its structure. Shows high adhesion to other substances such as aromatic polymer-based polymer electrolyte membranes. Furthermore, this resin is crosslinked by light, heat, electron beam, etc., and as a result, exhibits high heat resistance and water resistance.
- the binder according to the present invention is made of the above-mentioned crosslinkable polyether ketone having a protonic acid group, but can also be used in combination with other various ion-conductive polymers. Further, a crosslinked product of the above-mentioned proton acid group-containing crosslinkable polyetherketone may be used, and the crosslinked product may be used in combination with other various ion-conductive polymers. Examples of other various ion-conductive polymers include fluoropolymers, polyetherketone polymers, polyethersulfone polymers, polyphenylene sazo sulfide polymers, polyimide polymers, polyamide polymers, and epoxy.
- a polymer in which a proton acid group has been added to a molecule polyolefin polymer, or the like.
- the protonic acid group include a sulfonic acid group, a carboxylic acid group, a phosphoric acid group, and a sulfonimide group.
- an inorganic ion conductive material such as silica may be used.
- the binder preferably contains 5% by weight or more of a proton-acid group-containing crosslinkable polyether ketone, so that other substances such as an electrode material and a proton-acid group-containing aromatic polymer-based polymer electrolyte membrane can be used.
- a proton-acid group-containing crosslinkable polyether ketone so that other substances such as an electrode material and a proton-acid group-containing aromatic polymer-based polymer electrolyte membrane can be used.
- the binder is cross-linked by light, heat, electron beam, etc., and as a result, exhibits high heat resistance and water resistance.
- the light source used is not particularly limited, but a light source capable of irradiating light in the range of ultraviolet light or visible light can be usually employed.
- the irradiation dose varies depending on the structure of the crosslinkable polyetherketone used and its film thickness, but is usually 100 to 300 mj / cm 2 , preferably 500 to 2000 m it is a J / cm 2.
- the method of supplying heat is not particularly limited, and ordinary heating with an open or the like is sufficient.
- the heating temperature and time vary depending on the structure of the crosslinkable polyetherketone used and its film thickness, but are usually 120 to 300 ° C. 0.1 to 180 minutes, preferably 150 to 250 ° C., for 1 to 60 minutes.
- the binder of the present invention can be used in the form of a paste, and the paste is composed of the above-mentioned binding complex lj and a solvent, and may be a solution or a suspension.
- Solvents can be selected without particular limitation as long as they can be liquefied.For example, water, alcohols such as methanol, ethanol, 1-propanol, 2-propanol, butanol, methoxyethanol, ethoxyethanol, toluene, xylene, etc.
- Hydrocarbons chlorinated hydrocarbons such as methyl chloride and methylene chloride, ethers such as dichloroethyl ether, 1,4-dioxane, tetrahydrofuran, monoglyme, diglyme, methyl acetate, ethyl acetate, etc.
- the concentration of the binder can be appropriately selected depending on the method of use, but is preferably 1 wt ° / 0 or more and 80 wt%.
- the electrode forming composition according to the present invention comprises a binder comprising the protonic acid group-containing crosslinkable polyetherketone of the present invention and an electrode material.
- the ratio between the binder and the electrode material is not particularly limited. However, it is preferable that the ratio of the binder be 5 wt% or more and 9 ⁇ wt% or less, because the strength and efficiency of the electrode can be compatible.
- examples of the electrode material include a conductive material having electrical conductivity, and a catalyst that promotes an oxidation reaction of hydrogen and a reduction reaction of oxygen.
- the conductive material any conductive material may be used or may be displaced, and examples thereof include various metals and carbon materials.
- carbon black such as acetylene black, activated carbon, graphite and the like can be mentioned, and these can be used alone or as a mixture in powder or sheet form.
- the catalyst is not particularly limited as long as it promotes the oxidation reaction of hydrogen and the reduction reaction of oxygen.
- the electrode according to the present invention includes: a binder comprising the above-described proton acid group-containing crosslinkable polyetherketone or a protonic acid group-containing crosslinkable polyetherketone and various other ion conductive polymers; And a material for forming an electrode.
- the fuel cell according to the present invention uses at least one of the above-mentioned ion-conductive polymer membrane, ion-conductive binder, electrode composition, and electrode.
- the varnish containing the binder and Z or the electrode-forming composition according to the present invention is sprayed onto a substrate such as carbon paper to form an electrode and then directly bonded to the electrolyte membrane.
- a varnish containing a binder and Z or an electrode-forming composition is applied to a base material such as carbon paper, and then dried to form an electrode, and then a crosslinkable ion conductive resin according to the present invention is formed.
- a method for bonding to a electrolyte membrane using a varnish containing: a varnish containing a binder and / or an electrode-forming composition according to the present invention is directly spray-coated on the electrolyte membrane, then dried and bonded
- Examples of the method include a method of forming the electrode using another method, and joining the electrode to the electrolyte membrane using a varnish containing the crosslinkable ion conductive resin according to the present invention.
- the method for joining the electrolyte membrane and the electrode is not particularly limited, and examples thereof include hot press, cold press, and ultrasonic welding. Among them, it is preferable to use a hot press.
- crosslinking can be performed by light and / or heat or electron beam irradiation as necessary.
- the fuel cell of the present invention comprises a polymer electrolyte membrane having ion conductivity, and a positive electrode and a negative electrode arranged in contact with both sides thereof.
- Hydrogen or methanol aqueous solution of fuel Is electrochemically oxidized at the negative electrode to generate protons and electrons. This proton moves inside the polymer electrolyte membrane to the positive electrode to which oxygen is supplied.
- the electrons generated at the negative electrode pass through the load connected to the battery and flow to the positive electrode, where protons and electrons react at the positive electrode to produce water.
- Test methods for various tests in the examples are as follows.
- Protonic acid metal salts and the like were converted back to free protonic acids by the following method.
- the ion conductive membrane After cutting the ion conductive membrane to a width of 5 mm and a length of 4 Omm, it is placed on a PTFE (polytetrafluoroethylene) holder, and four electrodes are pressed against each other. From the arc determined by the AC impedance method of the four-terminal method The resistivity was measured. 2 Omm between voltage terminals Was. The impedance was measured using an LCR meter (3532 manufactured by Hioki Electric Co., Ltd.). The temperature was changed by placing the sample connected to the electrodes in a thermostat made of aluminum block, and the conductivity was measured in the range of 30 ° C to 110 ° C.
- LCR meter 3532 manufactured by Hioki Electric Co., Ltd.
- Humidification is carried out by introducing steam into a thermostatic chamber at normal pressure. The temperature is kept at + 5 ° C when the temperature measured by the steam generator is less than 10 ° C, and 120 ° C when the temperature is 100 ° C or more. The distilled water was heated and the generated steam was used.
- the film thickness was measured in a dry state using a micrometer.
- distilled water and lmo 1/1 methanol aqueous solution were contacted via an ion conductive polymer membrane with a diameter of 23 mm, and the change in methanol concentration on the distilled water side was measured using a refractometer (Shimadzu Corporation RID-6A). ). The methanol permeation rate at a film thickness of 50 im was calculated from the slope of the obtained ethanol concentration increasing line.
- a reaction flask equipped with a stirrer, a thermometer and a condenser was charged with 4,4,1-difluorene benzophenone (0.525 mol) and 210 ml of 50% fuming sulfuric acid. Reacted. This was discharged into 10 g of ice water and neutralized with 210 g of NaOH. Next, 210 g of NaC1 was added, and the mixture was dissolved by heating, allowed to cool, and left overnight. After filtering the precipitated crystals, 400 ml of water and 400 ml of ethanol were added, dissolved by heating and allowed to cool, followed by recrystallization. The precipitated crystals were filtered and dried at 100 ° C for 6 hours to obtain white crystals of 5,5,1-potency Lupoerbis (sodium 2-fluorobenzenesulfonate).
- the obtained powder polymer was dissolved in N-methyl-2-pyrrolidone, cast on a glass substrate, and dried at 200 ° C. for 4 hours to obtain a polyetherketone film containing sulfonic acid Na.
- the resulting film was flexible and tough.
- the polyetherketone membrane containing sulfonic acid Na is crosslinked by the method described in (c), and the membrane is further subjected to proton exchange by the method described in (port) to obtain a sulfonic acid-containing photocrosslinked polyetherketone. Ton film was obtained.
- the ionic conductivity is determined by the method described in (e), Table 2 shows the results of measuring the methanol permeation rate by the method described in (1).
- the resulting film was highly flexible and tough.
- Table 1 shows the results of ionic conductivity measurements in Table 1.
- Tg and ionic conductivity were measured in the same manner as in Example 1 using a Naphion 112 membrane (A1 drich reagent).
- Table 1 shows the results of T g
- Table 2 shows the measurement results of the conductivity and the methanol permeation rate.
- Allegory example 7 Hyd 53 off. ⁇ ⁇ ⁇ A A * f liPA a Yield 3 ⁇ 4 3 ⁇ 4 ⁇ , , fe fe ((( ⁇ ⁇ ⁇
- Table 2 shows that Examples 1 to 3 exhibited the same or no problem in ionic conductivity as compared with the Nafion membrane of Comparative Example 1, and were superior in methanolic acid permeability.
- the T g is sufficiently higher than 130 ° C. of the naphthonic film, which indicates that the heat resistance is greatly improved.
- the sulfonic acid-containing photocrosslinked polyetherketone membrane obtained in Example 1 was used as the electrolyte membrane 1.
- the polyetherketone powder obtained in Example 1 was subjected to proton exchange by the method described above (mouth). Using 0.5 g of the obtained sulfonic acid-containing polyether ketone powder as a binder, 10 g of a varnish dissolved in a mixed solvent of 5.0 g of distilled water and 4.5 g of tetrahydrofuran was added to a 20 wt. % Pt-supported catalyst (name: IFPC20) was mixed with 0.5 g, and the mixture was stirred after applying ultrasonic waves to obtain a composition for forming an electrode for an air electrode catalyst.
- IFPC20 20 wt. % Pt-supported catalyst
- 0.5 g of the sulfonic acid-containing polyether ketone powder obtained in 4-2 was used as a binder, and dissolved in a mixed solvent of 5.0 g of distilled water and 4.5 g of tetrahydrofuran.
- a mixed solvent of 5.0 g of distilled water and 4.5 g of tetrahydrofuran was mixed with 0.5 g of a 30 wt% PtRu supported catalyst (name: IFPC 30 A) made of Ishifuku Noble Metal, and stirred after application of ultrasonic waves to obtain a composition for forming an electrode for a fuel electrode catalyst. .
- the electrolyte membrane electrode assembly prepared in 4-1 was assembled into a fuel cell test cell (product number: EFC-05-05 REF) manufactured by E1ectrochem, and the fuel cell shown in Fig. 1 was assembled.
- the electrolyte membrane 1 is sandwiched between the electrodes 2 and 2 with catalyst and the gasket 3 prepared above, and a separator 4 is further placed on the outside thereof. It has a structure that is tightly tightened with the tightening bolt 7.
- the inner part 6 is provided with a gas flow path.
- FIG. 2 the fuel cell shown in FIG.
- the aqueous methanol solution is sent from the left to the right through the fuel cell 8 by the sending pump 12.
- air is humidified by the humidification coupling tank 9 and is ventilated from left to right through 8.
- a methanol aqueous solution flows through the six flow paths on the fuel electrode side, and air flows through the six flow paths on the air electrode side.
- Each flow rate is controlled by the mass flow controller 11.
- the system evaluates fuel cells by measuring the voltage and current density generated by flowing methanol aqueous solution and air with an electronic load of 10. Table 3 shows the measurement conditions.
- the cell was disassembled and the electrolyte membrane electrode assembly was observed, but no separation of the electrolyte membrane and the electrode was observed.
- the crosslinkable ionic conductive resin and the ion conductive polymer membrane using the same according to the present invention have a high practical level of ion conductivity and excellent heat resistance.
- the agent has high practical levels of ion conductivity, heat resistance, and water resistance, and has excellent adhesion to electrode materials and aromatic polymer-based polymer electrolyte membranes containing protonic acid groups.
- Fuel cell has excellent durability, low resistance and high current operation It is possible to obtain a functional fuel cell.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP04724116A EP1612232B1 (en) | 2003-04-07 | 2004-03-29 | Crosslinked ionically conducting resin, and ionically conducting polymer membranes, binders and fuel cells, made by using the resin |
CA002521712A CA2521712A1 (en) | 2003-04-07 | 2004-03-29 | Crosslinkable ion conductive resins, and ion conductive polymer membranes, binders and fuel cells using the same resins |
DE602004009047T DE602004009047T2 (de) | 2003-04-07 | 2004-03-29 | Vernetztes ionenleitendes harz und damit hergestellte ionenleitende polymermembranen, bindemittel und brennstoffzellen |
JP2005505200A JPWO2004090015A1 (ja) | 2003-04-07 | 2004-03-29 | 架橋性イオン伝導性樹脂、並びにそれを用いてなるイオン伝導性高分子膜、結着剤及び燃料電池 |
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JP2003102674 | 2003-04-07 | ||
JP2003-102674 | 2003-04-07 |
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EP (1) | EP1612232B1 (ja) |
JP (1) | JPWO2004090015A1 (ja) |
KR (1) | KR100702981B1 (ja) |
CN (1) | CN1768092A (ja) |
CA (1) | CA2521712A1 (ja) |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2005068536A1 (en) * | 2004-01-13 | 2005-07-28 | Johnson Matthey Public Limited Company | Ion-conducting polymers and membranes comprising them |
JP2006202598A (ja) * | 2005-01-20 | 2006-08-03 | Toray Ind Inc | 燃料電池用電極および燃料電池 |
JP2006252813A (ja) * | 2005-03-08 | 2006-09-21 | Jsr Corp | 直接メタノール型燃料電池用プロトン伝導膜 |
JP2007031573A (ja) * | 2005-07-27 | 2007-02-08 | Mitsui Chemicals Inc | 架橋型プロトン伝導性ブロック共重合体、その架橋体ならびにそれを用いたプロトン伝導膜および燃料電池 |
KR100709554B1 (ko) | 2005-04-19 | 2007-04-20 | 한국과학기술연구원 | 탄화수소계열 술폰화 고분자를 이용한 막전극집합체의 촉매바인더, 그 제조 방법 및 상기 촉매 바인더를 이용한막전극집합체 |
JP2007294240A (ja) * | 2006-04-25 | 2007-11-08 | Jsr Corp | 高分子型燃料電池用電極電解質およびその用途 |
JP2011506629A (ja) * | 2007-12-06 | 2011-03-03 | ビーエーエスエフ ソシエタス・ヨーロピア | 室温で架橋可能なイオン伝導性重合体系 |
WO2012005346A1 (ja) * | 2010-07-09 | 2012-01-12 | Jsr株式会社 | 重合体、その製造方法、フィルムおよびその製造方法 |
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JP5621847B2 (ja) * | 2010-07-09 | 2014-11-12 | Jsr株式会社 | 重合体、その製造方法、フィルムおよびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100702981B1 (ko) | 2007-04-09 |
EP1612232A1 (en) | 2006-01-04 |
EP1612232A4 (en) | 2006-05-17 |
EP1612232B1 (en) | 2007-09-19 |
CA2521712A1 (en) | 2004-10-21 |
DE602004009047T2 (de) | 2008-06-19 |
CN1768092A (zh) | 2006-05-03 |
KR20060015488A (ko) | 2006-02-17 |
DE602004009047D1 (de) | 2007-10-31 |
JPWO2004090015A1 (ja) | 2006-07-06 |
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