WO2017171290A1 - 블록 중합체 및 이를 포함하는 고분자 전해질막 - Google Patents
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1025—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
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- 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
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- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
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- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
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- H01M8/10—Fuel cells with solid electrolytes
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- H01M8/1018—Polymeric electrolyte materials
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- 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
- H01M8/1027—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES]
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- 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
- H01M8/1032—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having sulfur, e.g. sulfonated-polyethersulfones [S-PES]
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- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
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- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
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- 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
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Definitions
- the present specification relates to a block polymer and a polymer electrolyte membrane including the same.
- This specification claims the benefit of the application date of Korean Patent Application No. 10-2016-0037903 filed with the Korea Intellectual Property Office on March 29, 2016, the contents of which are incorporated herein in its entirety.
- a fuel cell is an energy conversion device that converts chemical energy of a fuel directly into electrical energy.
- a fuel cell is a power generation method that uses fuel gas and an oxidant and generates electric power by using electrons generated during the redox reaction.
- the membrane electrode assembly (MEA) of a fuel cell is a portion in which an electrochemical reaction between hydrogen and oxygen occurs and is composed of a cathode, an anode, and an electrolyte membrane, that is, an ion conductive electrolyte membrane.
- Redox flow battery is a system in which the active material contained in the electrolyte is oxidized-reduced and charged-discharged. to be.
- the unit cell of the redox flow battery includes an electrode, an electrolyte, and an ion exchange membrane (electrolyte membrane).
- Fuel cells and redox flow cells are being researched and developed as next generation energy sources due to their high energy efficiency and eco-friendly features with low emissions.
- the key components of fuel cell and redox flow cell are polymer electrolyte membranes capable of cation exchange, including 1) excellent proton conductivity 2) prevention of crossover of electrolyte, 3) strong chemical resistance, 4) mechanical It is desirable to have properties of enhanced physical properties and / or 4) low swelling ratio.
- the polymer electrolyte membrane is classified into fluorine-based, partially fluorine-based, hydrocarbon-based, and the like, and the partial fluorine-based polymer electrolyte membrane has a fluorine-based main chain, which has advantages of excellent physical and chemical stability and high thermal stability.
- the partial fluorine-based polymer electrolyte membrane has a cation transfer functional group attached to the end of the fluorine-based chain, and thus has the advantages of a hydrocarbon-based polymer electrolyte membrane and a fluorine-based polymer electrolyte membrane.
- the partial fluorine-based polymer electrolyte membrane has a problem that the cation conductivity is relatively low because the fine phase separation of the cation transport functional group and the control of the aggregation phenomenon are not effectively performed. Therefore, research has been conducted toward securing high cationic conductivity through the control of the distribution of sulfonic acid groups and microphase separation.
- the present specification is to provide a block polymer and a polymer electrolyte membrane including the same.
- the present invention is a hydrophobic block
- the hydrophilic block includes a unit derived from a compound represented by the following formula (1),
- the hydrophobic block provides a block polymer comprising a cationic group and a halogen group.
- A is -SO 3 H, -SO 3 - M + , -COOH, -COO - M + , -PO 3 H 2 , -PO 3 H - M + , -PO 3 2- 2M + , -O (CF 2 ) m SO 3 H, -O (CF 2 ) m SO 3 - M + , -O (CF 2 ) m COOH, -O (CF 2 ) m COO - M + , -O (CF 2 ) m PO 3 H 2, -O (CF 2) m PO 3 H - m + , or -O (CF 2) m PO 3 2- 2M + , and
- n 2 to 6
- M is a group 1 element
- R 1 to R 5 are the same as or different from each other, and each independently hydrogen; Halogen group; Or a hydroxyl group,
- At least two of R 1 to R 5 are a halogen group; Or a hydroxyl group,
- R 6 and R 7 are the same as or different from each other, and each independently a halogen group
- L 1 is a direct bond; -S-; -O-; -N (R)-; -SO 2- ; Or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
- a is an integer from 0 to 2
- the structures in parentheses are the same as or different from each other
- R is hydrogen; Or a substituted or unsubstituted alkyl group,
- n is an integer of 2 to 10, and when n is 2 or more, the structures in parentheses are the same or different from each other.
- the polymer electrolyte membrane including the block polymer according to one embodiment of the present specification easily forms a hydrophilic-hydrophobic phase separation structure.
- the polymer electrolyte membrane effectively forms a hydrophilic channel in the polymer electrolyte membrane by controlling the phase separation structure.
- the polymer electrolyte membrane including the block polymer according to the exemplary embodiment of the present specification may simultaneously realize the advantages of the cationic polymer electrolyte membrane and the anionic polymer electrolyte membrane. That is, the polymer electrolyte membrane according to one embodiment of the present specification may simultaneously implement the characteristics of the cation and the anionic membrane. In particular, when based on a conventional anion separator, it is possible to improve the performance of the battery by improving the cation conductivity, which is the limit of the membrane compared to the anion separator.
- the polymer electrolyte membrane according to one embodiment of the present specification when used in a fuel cell such as a redox flow battery, the crossover of vanadium ions may be reduced, thereby improving durability.
- FIG. 1 is a schematic diagram illustrating a principle of electricity generation of a fuel cell.
- FIG. 2 is a view schematically showing an embodiment of a redox flow battery.
- FIG 3 is a view schematically showing an embodiment of a fuel cell.
- FIG. 5 is an NMR spectrum of a polymer synthesized in Scheme 1 of Example 1.
- FIG. 6 is an NMR spectrum of a polymer synthesized in Scheme 3 of Example 2.
- 'unit' is a repeating structure in which the monomer is included in the polymer, and means a structure in which the monomer is bonded into the polymer by polymerization.
- the block polymer refers to a polymer in which one block and one or more blocks different from the block are connected to each other by a main chain of the polymer.
- the block polymer may include a hydrophilic block and a hydrophobic block.
- the block polymer may include a hydrophilic block including a unit represented by Chemical Formula 1; And a hydrophobic block comprising a cationic group and a halogen group.
- hydrophilic block herein is meant a block having an ion exchange group as a functional group.
- the functional groups are -SO 3 H, -SO 3 - M +, -COOH, -COO - M +, -PO 3 H 2, -PO 3 H - M +, -PO 3 2- 2M +, -O (CF 2 ) m SO 3 H, -O (CF 2 ) m SO 3 - M + , -O (CF 2 ) m COOH, -O (CF 2 ) m COO - M + , -O (CF 2 may be at least one selected from the group consisting of 2M + -) m PO 3 H 2, -O (CF 2) m PO 3 H - M + , and -O (CF 2) m PO 3 2.
- M may be a metallic element. That is, the functional group may be hydrophilic.
- the first unit represented by Formula 1 may exhibit hydrophilicity by including a functional group of A.
- block having an ion exchange group in the present specification means a block containing an average of 0.5 or more represented by the number of ion exchange groups per structural unit constituting the block, and an average of 1.0 or more ions per structural unit It is more preferable to have an exchanger.
- the hydrophobic block includes a cationic group and a halogen group. In this case, an improvement in acid resistance and / or durability of the block polymer can be expected.
- One embodiment of the present specification is a hydrophobic block
- the hydrophilic block includes a unit derived from a compound represented by the following formula (1),
- the hydrophobic block provides a block polymer comprising a cationic group and a halogen group.
- A is -SO 3 H, -SO 3 - M + , -COOH, -COO - M + , -PO 3 H 2 , -PO 3 H - M + , -PO 3 2- 2M + , -O (CF 2 ) m SO 3 H, -O (CF 2 ) m SO 3 - M + , -O (CF 2 ) m COOH, -O (CF 2 ) m COO - M + , -O (CF 2 ) m PO 3 H 2, -O (CF 2) m PO 3 H - m + , or -O (CF 2) m PO 3 2- 2M + , and
- n 2 to 6
- M is a group 1 element
- R 1 to R 5 are the same as or different from each other, and each independently hydrogen; Halogen group; Or a hydroxyl group,
- At least two of R 1 to R 5 are a halogen group; Or a hydroxyl group,
- R 6 and R 7 are the same as or different from each other, and each independently a halogen group
- L 1 is a direct bond; -S-; -O-; -N (R)-; -SO 2- ; Or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
- a is an integer from 0 to 2
- the structures in parentheses are the same as or different from each other
- R is hydrogen; Or a substituted or unsubstituted alkyl group,
- n is an integer of 2 to 10, and when n is 2 or more, the structures in parentheses are the same or different from each other.
- the cationic group is-(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or it may be represented by the formula (2).
- L 2 is a direct bond; -O-; -N (R 14 )-; -S-; -SO 2- ; Or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
- b is an integer from 1 to 10
- R 11 to R 15 are the same as or different from each other, and each independently hydrogen; Or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
- the hydrophobic block includes a unit derived from at least one of a compound represented by Formula 3 and a compound represented by Formula 4.
- a 1 and A 2 are the same as or different from each other, and each independently a hydroxyl group; Thiol group; Or a halogen group,
- S 1 and S 2 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted aryl group; Substituted or unsubstituted heterocyclic group; -(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or a structure represented by the following formula (2),
- c and d are each an integer of 1 to 4,
- S 3 and S 4 are the same as or different from each other, and each independently hydrogen; Halogen group; An alkyl group; Or a haloalkyl group,
- E 1 and E 2 are the same as or different from each other, and each independently a hydroxyl group; Thiol group; Or a halogen group, e is an integer from 1 to 4,
- f is an integer of 1 to 3
- S 5 is hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted aryl group; Substituted or unsubstituted heterocyclic group; -(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or a structure represented by the following formula (2),
- S 3 and S 4 are each independently a halogen group or a haloalkyl group, or S 5 is a halogen group or a haloalkyl group,
- the hydrophobic block is-(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; And one or two or more structures represented by the following Chemical Formula 2,
- L 2 is a direct bond; -O-; -N (R 14 )-; -S-; -SO 2- ; Or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
- b is an integer from 1 to 10
- R 11 to R 15 are the same as or different from each other, and each independently hydrogen; Or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
- Chemical Formula 4 may be represented by any one of the following Chemical Formulas 4-A to 4-H.
- S 5 ' is defined as S 5 , S 5 and S 5' are the same as or different from each other,
- e ' is the same as e, and e and e' are the same or different from each other.
- the hydrophobic block includes at least one or more of a unit represented by Formula 3-1 and a unit represented by Formula 4-1.
- S 1 , S 2 , c, d, and f are the same as in Formula 3 or Formula 4.
- Chemical Formula 3-1 may be represented by the following Chemical Formula 3-1-1.
- Chemical Formula 4-1 may be represented by the following Chemical Formula 4-1-1.
- Chemical Formula 4 is represented by the following Chemical Formulas 4-A-1, 4-B-1, 4-C-1, 4-D-1, 4-E-1, 4-F-1, It may be represented by any one of 4-G-1 and 4-H-1.
- the hydrophobic block may include a unit represented by the following Formula 5.
- X 1 is a direct bond; -CO-; -SO 2- ; Or an alkylene group substituted with a halogen group,
- X 2 is -O-; Or -S-,
- X 3 is an alkylene group substituted with a direct bond or a halogen group
- k 0 or 1
- p, q, r and s are each independently an integer of 0 to 4,
- t, u, v and w are each independently 0 or 1
- R 21 to R 24 are the same as or different from each other, and are each independently hydrogen or a halogen group
- At least one of X 1 and X 3 is an alkylene group substituted with a halogen group, or at least one of R 21 to R 24 is a halogen group,
- R 31 to R 34 are hydrogen; -(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or a cationic group represented by the formula (2),
- At least one of R 31 to R 34 is — (L 2 ) b —N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or a cationic group represented by the formula (2),
- L 2 is a direct bond; -O-; -N (R 14 )-; -S-; -SO 2- ; Or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms,
- b is an integer from 1 to 10
- R 11 to R 15 are the same as or different from each other, and each independently hydrogen; Or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
- At least one of R 31 and R 32 is-(L 2 ) b -N + R 11 R 12 R 13 ; -(L 2 ) b -P + R 11 R 12 R 13 ; Or a cationic group represented by the following formula (2).
- the a is 1.
- L 1 is -S-.
- an S atom is used as a linker of a-[C (R 6 ) (R 7 )] n -A structure and a benzene ring.
- S atoms due to the electron withdrawing character of-[C (R 6 ) (R 7 )] n -A connected by S atoms, it is possible to provide a polymer that is easy and stable in the formation of the polymer.
- R 6 and R 7 are the same as or different from each other, and are each independently a halogen group. Specifically, R 6 and R 7 are each independently F; Cl; Br; And I can be selected from the group consisting of.
- n is an integer of 2 to 10. In another embodiment of the present specification, n is an integer of 2 to 6.
- a monomer including a unit of Formula 1 may control the number of n.
- the monomer including the unit of formula (1) can be adjusted as necessary according to the difference in reactivity and the physical properties of the final polymer according to the length control of the structure in parentheses.
- n is 2.
- n 3.
- n 4.
- n is 5.
- n is 6.
- n 7.
- n 8.
- n 9.
- n 10
- A is -SO 3 H or -SO 3 - M + .
- A is -SO 3 H.
- any of formulas A 1 -SO 3 H or -SO 3 - M + may be the case, form a stable polymer chemically.
- M is a Group 1 element.
- the Group 1 element may be Li, Na, or K.
- At least two of R 1 to R 5 are a halogen group; Or a hydroxyl group.
- At least two of R 1 to R 5 are a halogen group; Or a hydroxy group, with the remainder being hydrogen.
- R 1 and R 3 are a halogen group or a hydroxyl group
- R 2 , R 4 and R 5 are hydrogen in terms of polymerizability.
- the first unit derived from the compound represented by Chemical Formula 1 is represented by any one of the following Chemical Formulas 1-1 to 1-9.
- the hydrophilic block is a unit represented by Formula 1; And a unit derived from the compound represented by Formula 4 above.
- S 1 is-(L 2 ) b -N + R 11 R 12 R 13 .
- S 2 is — (L 2 ) b —N + R 11 R 12 R 13 .
- S 5 is-(L 2 ) b -N + R 11 R 12 R 13 .
- the hydrophilic block includes a unit represented by Chemical Formula 1 and may further include other units.
- the hydrophilic block may further include a unit derived from a compound represented by the following Chemical Formula 3 '.
- a ' 1 and A' 2 are the same as or different from each other, and each independently a hydroxyl group; Thiol group; Or a halogen group,
- S ' 1 and S' 2 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted aryl group; Or a substituted or unsubstituted heterocyclic group,
- c 'and d' are each an integer of 1 to 4,
- S ' 3 and S' 4 are the same as or different from each other, and each independently hydrogen; Halogen group; An alkyl group; Or a haloalkyl group.
- the hydrophobic block is sufficient to include a cationic group and a halogen group, the position is not limited.
- the block polymer includes a unit represented by the following Formula A, B, C or D.
- X 1 , X 2 , L 1 , L 2 , a, b and n are the same as described above,
- G is the same as said cationic group
- x and y are each independently a molar ratio of the block polymer, which is a real number greater than 0 and less than 1,
- G of Formulas A to D is or Can be.
- R11 to R13 and R15 are alkyl groups.
- R11 to R13 and R15 are methyl groups.
- G of Formulas A to D is or Can be.
- the polymer according to the exemplary embodiment of the present invention may have a structure as follows.
- the hydrophilic block and the hydrophobic block are included in the mole ratio of 1: 0.001 to 1: 100 in the block polymer. In one embodiment of the present specification, the hydrophilic block and the hydrophobic block are included in the block polymer in a ratio of 1: 1 to 1: 0.001. In another embodiment, the hydrophilic block and hydrophobic block in the block polymer is included in a molar ratio of 1: 0.1 to 1: 0.01.
- the hydrophobic block is preferably included in an amount of 0.1 mol% to 50 mol%, more preferably 1 mol% to 10 mol% based on the entire polymer of the block polymer.
- the ion transport ability of the block polymer can be raised.
- the unit represented by Chemical Formula 1 in the hydrophilic block is included from 0.01 mol% to 100 mol% based on the hydrophilic block.
- the number average molecular weight of the hydrophilic block is 1,000 g / mol to 300,000 g / mol. In a specific embodiment, 2,000 g / mol to 100,000 g / mol. In another embodiment, it is from 2,500 g / mol to 50,000 g / mol.
- the number average molecular weight of the hydrophobic block is 1,000 g / mol to 300,000 g / mol. In a specific embodiment, 2,000 g / mol to 100,000 g / mol. In another embodiment, it is from 2,500 g / mol to 50,000 g / mol.
- the block polymer may further include a brancher.
- a brancher serves to link or crosslink a polymer chain.
- the brancher may directly constitute the main chain of the polymer, and may improve the mechanical density of the thin film.
- the branched block polymers of the present invention are polymerized by post-treatment by polymerizing branched hydrophobic blocks that do not contain acid substituents and branched hydrophilic blocks that include acid substituents. Without the post-sulfonation or cross-linking of the sulfonated polymer, the brancher directly forms the main chain of the polymer and maintains the mechanical density of the thin film. In the main, a small number of blocks and a hydrophilic block that imparts ion conductivity to the thin film are alternately connected to the chemical bond.
- the block polymer is a brancher derived from a compound represented by the following formula (6); Or it further includes a brancher represented by the formula (7).
- X is -S-; -O-; -CO-; -SO-; -SO 2- ; -NR'-; Hydrocarbon-based or fluorine-based conjugates,
- l is an integer from 0 to 10
- Y 1 and Y 2 are the same as or different from each other, and each independently an aromatic ring substituted with one or two or more substituents selected from the group consisting of NR′R ′′, a hydroxy group and a halogen group; or a group selected from the group consisting of a hydroxy group and a halogen group
- R 'and R are the same as or different from each other, and each independently hydrogen; an aromatic ring substituted with a halogen group; or an aliphatic ring substituted with a halogen group,
- Z is a trivalent organic group.
- the unit derived from the compound may mean a unit connected to the main chain of the polymer.
- the unit may be included in the main chain in the polymer to constitute the polymer.
- the unit derived from the compound represented by Formula 1 when at least two of R 1 to R 5 is a halogen group, it means that the halogen group is separated, while being connected to the main chain of the polymer. Can be.
- the unit derived from the compound represented by Chemical Formula 1 is a polymer main chain in which at least two of R 1 to R 5 are hydroxyl groups, by dropping a halogen group of a comonomer having a halogen group. It may mean connected with.
- the unit derived from the compound represented by Formula 4, E 1 and E 2 is a hydroxy group; Thiol group; Or a halogen group, which may mean that the thiol group or hydroxy group is dehydrogenated and connected to the polymer backbone.
- the derived unit may include being connected to the main chain of the polymer while being carbohydrated, and may also include modifying a site connected to the main chain through post-treatment such as acid treatment and heat treatment.
- a linking group of -O- may be provided in the polymer main chain, and when E 1 and E 2 are a thiol group, -S in the polymer main chain
- the connector of- may be provided.
- the linking group of -S- of the polymer backbone can be converted to -SO 2- .
- the brancher derived from the compound of Formula 6 in the present specification is an aromatic ring substituted with a halogen group of each of the Y1 and Y2; Or a halogen group in the aliphatic ring substituted with a halogen group may act as a brancher while being separated from the aromatic ring or aliphatic ring. Specifically, two or more halogen groups may fall off and act as a brancher in the polymer.
- substituted means that a hydrogen atom bonded to a carbon atom of the compound is replaced with another substituent, and the position to be substituted is not limited to a position where the hydrogen atom is substituted, that is, a position where a substituent can be substituted, if two or more substituted , Two or more substituents may be the same or different from each other.
- the hydrocarbon-based means an organic compound consisting of only carbon and hydrogen, and includes a straight chain, branched chain, cyclic hydrocarbon, and the like, but is not limited thereto. In addition, it may include a single bond, a double bond or a triple bond, but is not limited thereto.
- the fluorine-based conjugate means that some or all of the carbon-hydrogen bonds in the hydrocarbon system are substituted with fluorine.
- the aromatic ring may be an aromatic hydrocarbon ring or an aromatic hetero ring, and may be monocyclic or polycyclic.
- aromatic hydrocarbon ring monocyclic aromatic and naphthyl groups, binaphthyl groups, anthracenyl groups, phenanthrenyl groups, pyrenyl groups, peryllenyl groups, tetrasenyl groups, chrysenyl groups such as phenyl groups, biphenyl groups and terphenyl groups
- polycyclic aromatics such as fluorenyl group, acenaphthasenyl group, triphenylene group, and fluoranthene group, and the like.
- the aromatic heterocycle means a structure including one or more hetero atoms such as O, S, N, Se, or the like instead of a carbon atom in the aromatic hydrocarbon ring.
- thiophene group, furan group, pyrrole group, imidazole group, thiazole group, oxazole group, oxadiazole group triazole group, pyridyl group, bipyridyl group, pyrimidyl group, triazine group, triazole group, acridil group, Pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyrido pyrimidinyl group, pyrido pyrazinyl group, pyrazino pyrazinyl group, isoquinoline group, indole group, Carbazole group, benzoxazole group, benzoimid
- the aliphatic ring may be an aliphatic hydrocarbon ring or an aliphatic hetero ring, and may be monocyclic or polycyclic.
- Examples of the aliphatic ring include a cyclopentyl group, a cyclohexyl group, and the like, but are not limited thereto.
- an organic group an alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkenyl group, an aryl group, an aralkyl group, etc. are mentioned.
- This organic group may contain the bond and substituents other than hydrocarbon groups, such as a hetero atom, in the said organic group.
- the organic group may be any of linear, branched and cyclic.
- the trivalent organic group means a trivalent group having three bonding positions in an organic compound.
- the organic group may form a cyclic structure, may form a cyclic structure, and may form a bond including a hetero atom so long as the effect of the invention is not impaired.
- the bond containing hetero atoms such as an oxygen atom, a nitrogen atom, and a silicon atom
- hetero atoms such as an oxygen atom, a nitrogen atom, and a silicon atom
- the cyclic structure may include the aforementioned aromatic ring, aliphatic ring, and the like, and may be monocyclic or polycyclic.
- the alkyl group may be linear or branched chain, carbon number is not particularly limited, but is preferably 1 to 50. Specific examples include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, t-butyl, pentyl, hexyl and heptyl groups.
- the alkenyl group may be linear or branched chain, the carbon number is not particularly limited, but is preferably 2 to 40.
- Specific examples include vinyl, 1-propenyl, isopropenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 3-methyl-1- Butenyl, 1,3-butadienyl, allyl, 1-phenylvinyl-1-yl, 2-phenylvinyl-1-yl, 2,2-diphenylvinyl-1-yl, 2-phenyl-2- ( Naphthyl-1-yl) vinyl-1-yl, 2,2-bis (diphenyl-1-yl) vinyl-1-yl, stilbenyl group, styrenyl group and the like, but are not limited thereto.
- the cycloalkyl group is not particularly limited, but preferably has 3 to 60 carbon atoms, and especially cyclopentyl group, cyclohexyl group, and the like, but is not limited thereto.
- l is 3 or more.
- X is -S-.
- X is a haloalkylene group.
- X may be -CF 3 CF 3- .
- X is -CH 2- .
- X is NR '.
- Y1 and Y2 are the same as or different from each other, and are each independently NR'R ".
- Y1 and Y2 are the same as or different from each other, and are each independently a halogen substituted aromatic ring.
- Y1 and Y2 are the same as or different from each other, and are each independently a fluorine-substituted aromatic hydrocarbon ring.
- Y1 and Y2 are each a fluorine substituted phenyl group.
- 2,4-phenyl, 2,6-phenyl, 2,3-phenyl, 3,4-phenyl and the like are not limited thereto.
- the compound represented by Chemical Formula 6 may be represented by any one of the following structures.
- R ′′ ′′ is the same as that of R in Formula 6.
- Z in Chemical Formula 7 may be represented by any one of the following Chemical Formulas 7-1 to 7-4.
- L 11 to L 17 are the same as or different from each other, and each independently a direct bond; -S-; -O-; -CO-; Or -SO 2- ,
- R 100 to R 110 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group,
- r100, r101, r102, r105, r107, r108 and r109 are each an integer of 1 to 4,
- r103, r104, r106 and r110 are each an integer of 1 to 3,
- r100 to r110 are each an integer of 2 or more, the structures in the two or more parentheses are the same or different from each other.
- L 11 is -CO-.
- L 11 is -SO 2- .
- L 11 is -S-.
- L 12 is -CO-.
- L 12 is -SO 2- .
- L 12 is -S-.
- L 13 is -CO-.
- L 13 is -SO 2- .
- L 13 is -S-.
- L 14 is -CO-.
- L 14 is -SO 2- .
- L 15 is a direct bond.
- L 16 is a direct bond.
- L 17 is a direct bond.
- R 100 to R 110 are hydrogen.
- R 106 is a halogen group.
- R 106 is fluorine.
- brancher represented by Chemical Formula 7 may be represented by any one of the following structures.
- the weight average molecular weight of the polymer is 500 g / mol to 5,000,000 g / mol. In another embodiment of the present specification, the weight average molecular weight of the polymer is 10,000 g / mol to 3,000,000 g / mol.
- the weight average molecular weight of the polymer is in the above range, the mechanical properties of the electrolyte membrane including the polymer are not lowered, and the solubility of the polymer may be maintained to facilitate the preparation of the electrolyte membrane.
- the present disclosure provides a polymer electrolyte membrane including the block polymer described above.
- a block polymer including a unit represented by Formula 1 In the case of including a block polymer including a unit represented by Formula 1 according to an exemplary embodiment of the present specification, it has high mechanical strength and high ionic conductivity, and may facilitate phase separation of the electrolyte membrane.
- electrolyte membrane is a membrane capable of exchanging ions, such as membrane, ion exchange membrane, ion transfer membrane, ion conductive membrane, separator, ion exchange membrane, ion transfer membrane, ion conductive separator, ion exchange electrolyte membrane, ion And a transfer electrolyte membrane or an ion conductive electrolyte membrane.
- a polymer electrolyte membrane according to one embodiment of the present specification includes a hydrophilic block including a unit represented by Chemical Formula 1; And block polymers including hydrophobic blocks comprising at least one cationic side chain, using materials and / or methods known in the art.
- the ion conductivity of the polymer electrolyte membrane is 0.01 S / cm or more and 0.5 S / cm or less. In another exemplary embodiment, the ion conductivity of the polymer electrolyte membrane is 0.01 S / cm or more and 0.3 S / cm or less.
- the ionic conductivity of the polymer electrolyte membrane may be measured under humidification conditions.
- the humidification condition may mean 10% to 100% relative humidity (RH).
- the ion exchange capacity (IEC) value of the polymer electrolyte membrane is 0.01 mmol / g to 5 mmol / g.
- IEC ion exchange capacity
- the thickness of the polymer electrolyte membrane is 1 ⁇ m to 500 ⁇ m.
- the polymer electrolyte membrane having the above range thickness lowers an electrical short and a cross over of an electrolyte material, and may exhibit excellent cation conductivity characteristics.
- the present specification also relates to an anode; Cathode; And it provides a membrane-electrode assembly comprising the above-described polymer electrolyte membrane provided between the anode and the cathode.
- Membrane-electrode assembly is an electrode (cathode and anode) in which the electrochemical catalysis of fuel and air occurs and a polymer membrane in which hydrogen ions are transferred.
- the electrode (cathode and anode) and the electrolyte membrane are bonded together. It is a single unitary unit.
- the membrane-electrode assembly of the present specification is a form in which the catalyst layer of the anode and the catalyst layer of the cathode are in contact with the electrolyte membrane, and may be prepared according to conventional methods known in the art.
- the cathode; Anode; And it may be prepared by thermocompression bonding at 100 °C to 400 °C in a state in which the electrolyte membrane located between the cathode and the anode in close contact.
- the anode electrode may include an anode catalyst layer and an anode gas diffusion layer.
- the anode gas diffusion layer may again include an anode microporous layer and an anode electrode substrate.
- the cathode electrode may include a cathode catalyst layer and a cathode gas diffusion layer.
- the cathode gas diffusion layer may further include a cathode microporous layer and a cathode electrode substrate.
- FIG. 1 schematically illustrates the principle of electricity generation of a fuel cell.
- the most basic unit for generating electricity is a membrane electrode assembly (MEA), which is an electrolyte membrane 100 and the electrolyte membrane 100. It consists of an anode (200a) and a cathode (200b) electrode formed on both sides of the.
- MEA membrane electrode assembly
- an anode 200a generates an oxidation reaction of a fuel such as hydrogen or a hydrocarbon such as methanol and butane to generate hydrogen ions (H +) and electrons (e ⁇ ). Hydrogen ions move to the cathode 200b through the electrolyte membrane 100.
- water is generated by reacting hydrogen ions transferred through the electrolyte membrane 100 with an oxidant such as oxygen and electrons. This reaction causes the movement of electrons in the external circuit.
- the catalyst layer of the anode electrode is where the oxidation reaction of the fuel occurs, the catalyst is selected from the group consisting of platinum, ruthenium, osmium, platinum-ruthenium alloy, platinum-osmium alloy, platinum-palladium alloy and platinum-transition metal alloy. Can be used.
- the catalyst layer of the cathode electrode is where the reduction reaction of the oxidant occurs, platinum or platinum-transition metal alloy may be preferably used as a catalyst.
- the catalysts can be used on their own as well as supported on a carbon-based carrier.
- the introduction of the catalyst layer may be carried out by conventional methods known in the art, for example, the catalyst ink may be directly coated on the electrolyte membrane or coated on the gas diffusion layer to form the catalyst layer.
- the coating method of the catalyst ink is not particularly limited, but spray coating, tape casting, screen printing, blade coating, die coating or spin coating may be used.
- Catalytic inks can typically consist of a catalyst, a polymer ionomer, and a solvent.
- the gas diffusion layer serves as a passage for the reaction gas and water together with a role as a current conductor, and has a porous structure. Therefore, the gas diffusion layer may include a conductive substrate. As the conductive substrate, carbon paper, carbon cloth, or carbon felt may be preferably used.
- the gas diffusion layer may further include a microporous layer between the catalyst layer and the conductive substrate. The microporous layer may be used to improve the performance of the fuel cell in low-humidity conditions, and serves to reduce the amount of water flowing out of the gas diffusion layer so that the electrolyte membrane is in a sufficient wet state.
- One embodiment of the present specification includes two or more membrane-electrode assemblies; A stack comprising a bipolar plate provided between the membrane-electrode assemblies; A fuel supply unit supplying fuel to the stack; And it provides a polymer electrolyte fuel cell comprising an oxidant supply unit for supplying an oxidant to the stack.
- a fuel cell is an energy conversion device that converts chemical energy of a fuel directly into electrical energy.
- a fuel cell is a power generation method that uses fuel gas and an oxidant and generates electric power by using electrons generated during the redox reaction.
- the fuel cell can be manufactured according to conventional methods known in the art using the membrane-electrode assembly (MEA) described above.
- MEA membrane-electrode assembly
- it may be prepared by configuring a membrane electrode assembly (MEA) and a bipolar plate (bipolar plate) prepared above.
- the fuel cell of the present specification includes a stack, a fuel supply unit and an oxidant supply unit.
- FIG. 3 schematically illustrates the structure of a fuel cell, in which the fuel cell includes a stack 60, an oxidant supply unit 70, and a fuel supply unit 80.
- the stack 60 includes one or two or more membrane electrode assemblies as described above, and includes two or more separators interposed therebetween when two or more membrane electrode assemblies are included.
- the separator serves to prevent the membrane electrode assemblies from being electrically connected and to transfer fuel and oxidant supplied from the outside to the membrane electrode assembly.
- the oxidant supply unit 70 serves to supply the oxidant to the stack 60.
- Oxygen is typically used as the oxidizing agent, and may be used by injecting oxygen or air into the pump 70.
- the fuel supply unit 80 serves to supply fuel to the stack 60, and to the fuel tank 81 storing fuel and the pump 82 supplying fuel stored in the fuel tank 81 to the stack 60.
- fuel hydrogen or hydrocarbon fuel in gas or liquid state may be used.
- hydrocarbon fuels include methanol, ethanol, propanol, butanol or natural gas.
- the fuel cell may be a polymer electrolyte fuel cell, a direct liquid fuel cell, a direct methanol fuel cell, a direct formic acid fuel cell, a direct ethanol fuel cell, or a direct dimethyl ether fuel cell.
- the electrolyte membrane according to one embodiment of the present specification is used as an ion exchange membrane of a fuel cell, the above-described effects can be obtained.
- an exemplary embodiment of the present specification includes a positive electrode cell including a positive electrode and a positive electrode electrolyte; A cathode cell comprising a cathode and a cathode electrolyte; And it provides a redox flow battery comprising a polymer electrolyte membrane according to one embodiment of the present specification provided between the cathode cell and the anode cell.
- Redox flow battery is a system in which the active material contained in the electrolyte is oxidized-reduced and charged-discharged, and is an electrochemical storage device that directly stores chemical energy of the active material as electrical energy. to be.
- the redox flow battery uses a principle that charges and discharges are exchanged when electrons containing active materials having different oxidation states meet with an ion exchange membrane interposed therebetween.
- a redox flow battery is composed of a tank containing an electrolyte solution, a battery cell in which charging and discharging occurs, and a circulation pump for circulating the electrolyte solution between the tank and the battery cell, and the unit cell of the battery cell includes an electrode, an electrolyte, and an ion. Exchange membrane.
- the electrolyte membrane according to one embodiment of the present specification is used as an ion exchange membrane of a redox flow battery, the above-described effects may be exhibited.
- the redox flow battery of the present specification may be manufactured according to conventional methods known in the art, except for including the polymer electrolyte membrane according to one embodiment of the present specification.
- the redox flow battery is divided into the positive electrode cell 32 and the negative electrode cell 33 by the electrolyte membrane 31.
- the anode cell 32 and the cathode cell 33 include an anode and a cathode, respectively.
- the anode cell 32 is connected to the anode tank 10 for supplying and discharging the anode electrolyte 41 through a pipe.
- the cathode cell 33 is also connected to the cathode tank 20 for supplying and discharging the cathode electrolyte 42 through a pipe.
- the electrolyte is circulated through the pumps 11 and 21, and an oxidation / reduction reaction (that is, a redox reaction) in which the oxidation number of ions changes occurs, thereby causing charge and discharge at the anode and the cathode.
- an oxidation / reduction reaction that is, a redox reaction
- Each monomer and potassium carbonate (K 2 CO 3 : molar ratio 4) of Scheme 1 were mixed at a ratio of 30 wt% methylpyrrolidone (NMP) and 20 wt% benzene, and the mixture was treated at 140 ° C. for 4 hours at 180 ° C. 16 hours of polymerization was carried out to prepare the polymer of Scheme 1.
- H-NMR of the polymer of Scheme 1 is as shown in Figure 5, after dissolving the polymer in dimethylacetamide (DMAC) was carried out H-NMR experiment in CDCl 3 solvent.
- each monomer and potassium carbonate (K2CO3: molar ratio 4) of Scheme 2 were mixed at a ratio of 30 wt% methylpyrrolidone (NMP) and 20 wt% benzene, and then 4 hours at 140 ° C. , 16 hours of polymerization at 180 °C to prepare a polymer of Scheme 2.
- Example 2 The vanadium permeability of the electrolyte membrane using the copolymer and Nafion 115 was measured and shown in Table 1 below.
- the vanadium ion permeability is 1M VOSO 4 in 2M H 2 SO 4 solution on one side and 1M MgSO 4 in 2M H 2 SO 4 solution on the other side 1M over time by installing an electrolyte membrane between the two solutions VO 2 + concentration in MgSO 4 in 2M H 2 SO 4 solution was measured.
- the active area was measured at 7.69 cm 2 , the volume was 200 ml, and room temperature.
- the permeability of vanadium ions is higher than that of the existing Nafion electrolyte membrane due to the presence of cationic functional groups in the electrolyte membrane main chain as compared to the Nafion 115 electrolyte membrane. You can see that it falls significantly. As a result, it is possible to effectively suppress the crossover of vanadium ions (VO 2+ ) due to the Donnan effect, so that the performance of the electrolyte membrane including the copolymer according to the exemplary embodiment of the present invention is excellent. It can be predicted.
- the fluorine element is included in the main chain of the electrolyte membrane, it can be expected that it can greatly contribute to improving the electrolyte membrane durability.
- the efficiency of the battery can be improved.
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Abstract
Description
VO2+ 투과도 (cm2/min)x10-6 | |
실시예 2 | 0.48 |
Nafion 115 (비교예) | 5.84 |
Claims (16)
- 소수성 블록; 및친수성 블록을 포함하고,상기 친수성 블록은 하기 화학식 1로 표시되는 화합물로부터 유래된 단위를 포함하며,상기 소수성 블록은 양이온성기 및 할로겐기를 포함하는 것인 블록 중합체:[화학식 1]화학식 1에 있어서,A는 -SO3H, -SO3 -M+, -COOH, -COO-M+, -PO3H2, -PO3H-M+, -PO3 2-2M+, -O(CF2)mSO3H, -O(CF2)mSO3 -M+, -O(CF2)mCOOH, -O(CF2)mCOO-M+, -O(CF2)mPO3H2, -O(CF2)mPO3H-M+ 또는 -O(CF2)mPO3 2-2M+이고,m은 2 내지 6의 정수이며,M은 1족 원소이고,R1 내지 R5는 서로 동일하거나 상이하고, 각각 독립적으로 수소; 할로겐기; 또는 히드록시기이며,R1 내지 R5 중 적어도 두 개는 할로겐기; 또는 히드록시기이고,R6 및 R7은 서로 동일하거나 상이하고, 각각 독립적으로 할로겐기이며,L1은 직접결합; -S-; -O-; -N(R)-; -SO2-; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬렌기이고,a는 0 내지 2의 정수이며, a가 2인 경우 괄호 내의 구조는 서로 동일하거나 상이하고,R은 수소; 또는 치환 또는 비치환된 알킬기이며,n은 2 내지 10의 정수이며, n이 2 이상인 경우에 괄호 내의 구조는 서로 동일하거나 상이하다.
- 청구항 1에 있어서,상기 양이온성기는 -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 또는 하기 화학식 2로 표시되는 양이온성기인 블록 중합체:[화학식 2]화학식 2에 있어서,L2는 직접결합; -O-; -N(R14)-; -S-; -SO2-; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬렌기이고,b는 1 내지 10의 정수이며,b가 2 이상인 경우에 2 이상의 L2는 서로 동일하거나 상이하고,R11 내지 R15는 서로 동일하거나 상이하며, 각각 독립적으로 수소; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬기이다.
- 청구항 1에 있어서,상기 소수성 블록은 하기 화학식 3으로 표시되는 화합물 및 화학식 4로 표시되는 화합물 중 1종 이상으로부터 유래되는 단위를 포함하는 것인 블록 중합체:[화학식 3][화학식 4]화학식 3 및 화학식 4에 있어서,A1 및 A2는 서로 동일하거나 상이하고, 각각 독립적으로 히드록시기; 티올기; 또는 할로겐기이고,S1 및 S2는 서로 동일하거나 상이하고, 각각 독립적으로 수소; 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 치환 또는 비치환된 알킬기; 치환 또는 비치환된 시클로알킬기; 치환 또는 비치환된 알콕시기; 치환 또는 비치환된 알케닐기; 치환 또는 비치환된 실릴기; 치환 또는 비치환된 아릴기; 치환 또는 비치환된 헤테로고리기; -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 또는 하기 화학식 2로 표시되는 구조이고,c 및 d는 각각 1 내지 4의 정수이고,c 및 d가 각각 2 이상의 정수인 경우, 2 이상의 괄호 내의 구조는 서로 동일하거나 상이하며,S3 및 S4는 서로 동일하거나 상이하고, 각각 독립적으로 수소; 할로겐기; 알킬기; 또는 할로알킬기이며,E1 및 E2는 서로 동일하거나 상이하고, 각각 독립적으로 히드록시기; 티올기; 또는 할로겐기이며,e는 1 내지 4의 정수이고,f는 1 내지 3의 정수이며,e 및 f가 각각 2 이상의 정수인 경우에, 괄호 내의 구조는 서로 같거나 상이하고,S5는 수소; 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 치환 또는 비치환된 알킬기; 치환 또는 비치환된 시클로알킬기; 치환 또는 비치환된 알콕시기; 치환 또는 비치환된 알케닐기; 치환 또는 비치환된 실릴기; 치환 또는 비치환된 아릴기; 치환 또는 비치환된 헤테로고리기; -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 또는 하기 화학식 2로 표시되는 구조이며,S3 및 S4가 각각 독립적으로 할로겐기 또는 할로알킬기이거나, S5가 할로겐기 또는 할로알킬기이고,상기 소수성 블록은 -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 및 하기 화학식 2로 표시되는 구조를 1 또는 2 이상 포함하며,[화학식 2]화학식 2에 있어서,L2는 직접결합; -O-; -N(R14)-; -S-; -SO2-; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬렌기이고,b는 1 내지 10의 정수이며,b가 2 이상인 경우에 2 이상의 L2는 서로 동일하거나 상이하고,R11 내지 R15는 서로 동일하거나 상이하며, 각각 독립적으로 수소; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬기이다.
- 청구항 1에 있어서,상기 소수성 블록은 하기 화학식 5로 표시되는 단위를 포함하는 것인 블록 중합체:[화학식 5]화학식 5에 있어서,X1은 직접결합; -CO-; -SO2-; 또는 할로겐기로 치환된 알킬렌기이고,X2는 -O-; 또는 -S-이며,X3는 직접결합 또는 할로겐기로 치환된 알킬렌기이고,k는 0 또는 1이고,p, q, r 및 s는 각각 독립적으로 0 내지 4의 정수이며,t, u, v 및 w는 각각 독립적으로 0 또는 1이고,t, u, v 및 w의 합은 1 이상이며,p와 t의 합, q와 u의 합, r과 v의 합 및 s와 w의 합은 각각 4이고,p, q, r 및 s가 각각 2 이상인 경우에 괄호 안의 치환기는 서로 같거나 상이하며,R21 내지 R24는 서로 같거나 상이하고, 각각 독립적으로 수소 또는 할로겐기이며,X1 및 X3 중 적어도 하나가 할로겐기로 치환된 알킬렌기이거나, R21 내지 R24 중 적어도 하나가 할로겐기이고,R31 내지 R34는 수소; -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 또는 하기 화학식 2로 표시되는 양이온성기이며,R31 내지 R34 중 적어도 하나는 -(L2)b-N+R11R12R13; -(L2)b-P+R11R12R13; 또는 하기 화학식 2로 표시되는 양이온성기이고,[화학식 2]화학식 2에 있어서,L2는 직접결합; -O-; -N(R14)-; -S-; -SO2-; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬렌기이고,b는 1 내지 10의 정수이며,b가 2 이상인 경우에 2 이상의 L2는 서로 동일하거나 상이하고,R11 내지 R15는 서로 동일하거나 상이하며, 각각 독립적으로 수소; 또는 치환 또는 비치환된 탄소수 1 내지 10의 알킬기이다.
- 청구항 1에 있어서,상기 블록 중합체 내에서 상기 친수성 블록과 소수성 블록은 1:0.001 내지 1:100의 몰 비율로 포함되는 것인 블록 중합체.
- 청구항 1에 있어서,상기 블록 중합체는 브랜처를 더 포함하는 것인 블록 중합체.
- 청구항 1에 있어서,상기 블록 중합체의 중량평균분자량은 500 g/mol 내지 5,000,000 g/mol 인 것인 중합체.
- 청구항 1 내지 9 중 어느 한 항에 따른 블록 중합체를 포함하는 고분자 전해질막.
- 청구항 10에 있어서,상기 고분자 전해질막의 이온 전도도는 0.01 S/cm 내지 0.5 S/cm 인 것인 고분자 전해질막.
- 청구항 10에 있어서,상기 고분자 전해질막의 이온교환용량(IEC) 값은 0.01 mmol/g 내지 5 mmol/g 인 것인 고분자 전해질막.
- 청구항 10에 있어서,상기 고분자 전해질막의 두께는 1 ㎛ 내지 500 ㎛ 인 것인 고분자 전해질막.
- 애노드; 캐소드; 및 상기 애노드와 상기 캐소드 사이에 구비된 청구항 10의 고분자 전해질막을 포함하는 막-전극 접합체.
- 2 이상의 청구항 14에 따른 막-전극 접합체;상기 막-전극 접합체들 사이에 구비되는 바이폴라 플레이트를 포함하는 스택;상기 스택으로 연료를 공급하는 연료공급부; 및상기 스택으로 산화제를 공급하는 산화제공급부를 포함하는 고분자 전해질형 연료전지.
- 양극 및 양극 전해액을 포함하는 양극 셀;음극 및 음극 전해액을 포함하는 음극 셀; 및상기 양극 셀과 상기 음극 셀 사이에 구비되는 청구항 10의 고분자 전해질막을 포함하는 레독스 플로우 전지.
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- 2017-03-21 US US16/087,512 patent/US10947338B2/en active Active
- 2017-03-21 WO PCT/KR2017/003001 patent/WO2017171290A1/ko active Application Filing
- 2017-03-21 CN CN201780021760.2A patent/CN108884213B/zh active Active
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KR20170113157A (ko) | 2017-10-12 |
JP6972003B2 (ja) | 2021-11-24 |
CN108884213B (zh) | 2020-08-18 |
EP3421517A1 (en) | 2019-01-02 |
CN108884213A (zh) | 2018-11-23 |
US20190106530A1 (en) | 2019-04-11 |
EP3421517B1 (en) | 2019-09-11 |
US10947338B2 (en) | 2021-03-16 |
KR101949181B1 (ko) | 2019-04-29 |
EP3421517A4 (en) | 2019-01-02 |
JP2019516809A (ja) | 2019-06-20 |
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