WO2023277297A1 - 공중합체 분산제 및 이를 이용한 분산액 - Google Patents
공중합체 분산제 및 이를 이용한 분산액 Download PDFInfo
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- WO2023277297A1 WO2023277297A1 PCT/KR2022/002503 KR2022002503W WO2023277297A1 WO 2023277297 A1 WO2023277297 A1 WO 2023277297A1 KR 2022002503 W KR2022002503 W KR 2022002503W WO 2023277297 A1 WO2023277297 A1 WO 2023277297A1
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- Prior art keywords
- iso
- dispersion
- copolymer
- carbon
- methyl
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- 239000006185 dispersion Substances 0.000 title claims abstract description 55
- 229920001577 copolymer Polymers 0.000 title claims abstract description 34
- 239000002270 dispersing agent Substances 0.000 title claims description 35
- 239000000178 monomer Substances 0.000 claims abstract description 30
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 17
- 125000003118 aryl group Chemical group 0.000 claims abstract description 15
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 14
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 6
- 125000004093 cyano group Chemical group *C#N 0.000 claims abstract description 6
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 n-octyl Chemical group 0.000 claims description 77
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 47
- 239000003575 carbonaceous material Substances 0.000 claims description 31
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 14
- BXSPZNVFEYWSLZ-UHFFFAOYSA-N (3-phenoxyphenyl)methyl prop-2-enoate Chemical compound C=CC(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 BXSPZNVFEYWSLZ-UHFFFAOYSA-N 0.000 claims description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 5
- 239000002048 multi walled nanotube Substances 0.000 claims description 5
- ZFPGARUNNKGOBB-UHFFFAOYSA-N 1-Ethyl-2-pyrrolidinone Chemical compound CCN1CCCC1=O ZFPGARUNNKGOBB-UHFFFAOYSA-N 0.000 claims description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 4
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000002109 single walled nanotube Substances 0.000 claims description 4
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical class C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229910003472 fullerene Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 claims description 2
- DABOOAVTBIRGHP-UHFFFAOYSA-N 1-phenoxynaphthalene Chemical compound C=1C=CC2=CC=CC=C2C=1OC1=CC=CC=C1 DABOOAVTBIRGHP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 2
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 claims description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 claims description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229920005604 random copolymer Polymers 0.000 claims description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims 1
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 17
- 239000002041 carbon nanotube Substances 0.000 description 16
- 229910021393 carbon nanotube Inorganic materials 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 13
- 239000002086 nanomaterial Substances 0.000 description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 9
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 9
- 239000002798 polar solvent Substances 0.000 description 6
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- WYGWHHGCAGTUCH-ISLYRVAYSA-N V-65 Substances CC(C)CC(C)(C#N)\N=N\C(C)(C#N)CC(C)C WYGWHHGCAGTUCH-ISLYRVAYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002931 mesocarbon microbead Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000002409 silicon-based active material Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 1
- 229920003026 Acene Polymers 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical class [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000120 polyethyl acrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002153 silicon-carbon composite material Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1818—C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/30—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
- C08F220/301—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety and one oxygen in the alcohol moiety
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
- C08F226/10—N-Vinyl-pyrrolidone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L39/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
- C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C08L39/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a copolymer dispersant and a dispersion using the same, and relates to a dispersant capable of increasing the dispersibility of carbon materials, particularly carbon nanomaterials such as carbon nanotubes, even when used in a small amount, and a dispersion using the same.
- carbon materials have unique mechanical properties, electrical properties, thermal properties, etc., they are used in various fields such as electronics, biotechnology, and medicine. Recently, not only conventional carbon materials such as graphite, activated carbon, and carbon black, but also carbon nanomaterials such as carbon nanotubes, fullerenes, and graphenes have been in the limelight.
- carbon materials particularly carbon nanomaterials, tend to agglomerate with each other in the matrix due to strong Van der Waals forces. If the carbon material is agglomerated in the matrix, it may not be able to exert its unique characteristics and may cause a problem of deterioration in uniformity.
- Methods for dispersing carbon materials include mechanical dispersion using physical force such as ultrasonic waves, milling, and high shear force, dispersion using a dispersing agent, and dispersion by surface modification.
- Patent Document 1 US Patent Registration No. 7,655,708
- an object of the present invention is to provide a dispersant capable of efficiently dispersing a carbon material (particularly, a carbon nano material) with only a small amount.
- the present invention is to provide a dispersion using the dispersant.
- a copolymer is provided.
- R 1 to R 9 are each independently hydrogen, a linear or branched hydrocarbon having 1 to 4 carbon atoms,
- R' 1 is a linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms
- R′ 2 contains two or more aromatic rings which may or may not be substituted
- R' 3 is at least one selected from the group consisting of cyano (CN), pyrrolidone (NC 4 H 6 O), and carboxylic acid (COOH);
- n are each independently an integer from 0 to 4,000;
- l is each an integer from 1 to 7,000.
- Dispersant is provided.
- Another aspect of the present application provides a slurry composition for an electrode, an electrode or a secondary battery including the dispersant.
- the copolymer according to the present invention has an effect of dispersing a carbon material (particularly, a carbon material) efficiently with only a small amount as a dispersant.
- dispersion using the dispersant of the present invention can be used in various fields (eg, batteries, capacitor electrodes, etc.) requiring dispersion of carbon materials.
- a copolymer according to one aspect of the present disclosure may be represented by Formula 1 below.
- R 1 to R 9 are each independently hydrogen, a linear or branched hydrocarbon having 1 to 4 carbon atoms,
- R' 1 is a linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms
- R′ 2 contains two or more aromatic rings which may or may not be substituted
- R' 3 is at least one selected from the group consisting of cyano (CN), pyrrolidone (NC 4 H 6 O), and carboxylic acid (COOH);
- n are each independently an integer from 0 to 4,000;
- l is an integer from 1 to 7,000.
- the copolymer is a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and cyano (CN), pyrrolidone (NC 4 H 6 O) and a polar monomer including at least one selected from the group consisting of carboxylic acid (COOH).
- R' 1 in Formula 1 is n-pentyl, n-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl, n-undecyl, lauryl, n-dodecyl, n-tridecyl, n-tetradecyl ), n-pentadecyl, cetyl, n-hexadecyl, n-heptadecyl, stearyl, n-octadecyl, n-nonadecyl ( nonadecyl), n-icosyl, n-henicosyl, n-docosyl, iso-pentyl, iso-heptyl, iso-octyl, iso-nonyl, iso-decyl, iso- Undec
- a monomer containing R' 1 only one type of monomer containing a linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms may be used, or two or more types including a linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms may be used. Monomers may also be used together.
- a copolymer using only one of stearyl methacrylate or lauryl methacrylate, a copolymer using both stearyl methacrylate and lauryl methacrylate, and the like are exemplified.
- the monomer containing the linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms may serve to wrap and disperse a carbon material (particularly, a carbon nano material such as a carbon nanotube) and lower the viscosity of the dispersion. .
- the carbon material in particular, carbon nanotube
- the monomer containing the linear or branched aliphatic hydrocarbon having 5 to 22 carbon atoms may be included in an amount of 5 to 80 mol% based on 100 mol% of the total content of the copolymer.
- the particle size and viscosity of the dispersion may increase, and when it exceeds 80 mol%, compatibility with polar solvents is lowered, resulting in phase separation can be
- R' 2 in Formula 1 is any one selected from the group consisting of benzyl, phenyl, phenoxy, naphthalene, anthracene, and pyrene. It may contain one or more, for example, 3-phenoxy benzyl, 1-naphthyl, 2-naphthyl, 9-anthracenylmethyl (9 -anthracene methyl) and 1-pyrene methyl (1-pyrene methyl) may include any one or more selected from the group consisting of.
- R' 2 may be a hydrocarbon containing two or more substituted or unsubstituted aromatic rings.
- the substituent is a linear or branched hydrocarbon having 1 to 4 carbon atoms, a substituent connected through oxygen (O) (for example, substituted or unsubstituted connected through ether). aromatic rings, etc.) and the like.
- the monomer containing R' 2 is 3-phenoxy benzyl acrylate and (1-pyrene) methyl 2-methyl-2-propenoate ((1-pyrene) 2-methyl-2-propenoate) may be any one or more selected from the group consisting of.
- the substituted or unsubstituted monomers containing two or more aromatic rings play a dispersing role with carbon materials (particularly, carbon nanomaterials such as carbon nanotubes) through ⁇ - ⁇ interactions and are compatible with polar solvents such as NMP.
- carbon materials particularly, carbon nanomaterials such as carbon nanotubes
- polar solvents such as NMP.
- the substituted or unsubstituted monomer containing two or more aromatic rings may be included in an amount of 0 to 60 mol% based on 100 mol% of the total amount of the copolymer.
- the dispersion effect is reduced, and when the content of the monomer containing two or more substituted or unsubstituted aromatic rings exceeds 60 mol%, the content of aliphatic hydrocarbons or polar monomers is reduced.
- the viscosity of the dispersion may increase and the particle size of the dispersed carbon material may increase.
- the polar monomer containing at least one selected from the group consisting of cyano (CN), pyrrolidone (NC 4 H 6 O) and carboxylic acid (COOH) serves to impart compatibility to polar solvents such as NMP.
- a copolymer using only one of N-vinyl-2-pyrrolidone or acrylic acid, both N-vinyl-2-pyrrolidone and acrylic acid are mentioned as an example.
- the polar monomer may be included in an amount of 0 to 60 mol% based on 100 mol% of the total copolymer content.
- the polar monomer exceeds 60 mol% of the total copolymer, the compatibility with the polar solvent is excessively high, and phase separation occurs after dispersion, and the particle size of the dispersed carbon material may increase.
- the copolymer may be a random or block copolymer depending on the synthesis process.
- the copolymer may have a number average molecular weight of 5,000 to 1,000,000.
- the fluidity of the dispersant increases and the ability to prevent reagglomeration of the carbon material may decrease, and when the number average molecular weight is 1,000,000 or more, the viscosity may be too high for use.
- a dispersant according to another aspect of the present disclosure may include the above copolymer.
- a dispersion according to another aspect of the present disclosure may include the dispersing agent and a solvent.
- the solvent may be a polar solvent, for example, N-methyl-2-pyrrolidone (N-methyl-2-pyrrolidone, NMP), N-ethyl-2-pyrrolidone ( N-ethyl-2-pyrrolidone (NEP), dimethylformamide (DMF), dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO) and ⁇ -butyrolactone It may be any one or more selected from the group consisting of.
- NMP N-methyl-2-pyrrolidone
- NEP N-ethyl-2-pyrrolidone
- DMF dimethylformamide
- DMAc dimethylacetamide
- DMSO dimethyl sulfoxide
- ⁇ -butyrolactone It may be any one or more selected from the group consisting of.
- the dispersion may further include a carbon material, and the carbon material may be at least one selected from the group consisting of graphite, activated carbon, carbon black, carbon nanotube, fullerene, or graphene, but is limited thereto It doesn't work.
- the carbon nanotubes may be single-walled carbon nanotubes, multi-walled carbon nanotubes, or a combination thereof.
- the viscosity of the dispersion is 3,300 to 18,000 cps
- the single-walled carbon nanotubes, the multi-walled carbon nanotubes, or a combination thereof are dispersed in the dispersion.
- the average particle size (D50) of may be 10 ⁇ m or less.
- a slurry composition according to another aspect of the present disclosure may include the dispersant.
- the slurry composition may be a slurry for an electrode and may include an electrode active material, a binder, a solvent, and the like.
- transition metal sulfides such as TiS 2 , TiS 3 , and amorphous MoS 3 ; Transition metal oxides such as Cu 2 V 2 O 3 , amorphous V 2 OP 2 O 5 , MoO 3 , V 2 O 5 , and V 6 O 13 may be used.
- the negative electrode active material for example, a silicon-based active material, a tin-based active material, amorphous carbon, graphite, natural graphite, mesocarbon microbeads (MCMB), carbonaceous materials such as pitch-based carbon fibers, and conductive materials such as polyacene.
- MCMB mesocarbon microbeads
- conductive materials such as polyacene.
- a polymer etc. are mentioned.
- silicon-based active material examples include silicon oxide, silicon-carbon composites, and silicon alloys.
- binder examples include poly(meth)acrylic acid, poly(meth)acrylamide, carboxymethylcellulose, polyvinylidene fluoride, polyhexafluoropropylene-polyvinylidene fluoride copolymer (P(VdF/HFP)), Poly(vinyl acetate), polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone, alkylated polyethylene oxide, polyvinyl ether, poly(methyl methacrylate), poly(ethyl acrylate), polytetrafluoroethylene, It may be at least one selected from the group consisting of polyvinyl chloride, polyacrylonitrile, polyvinylpyridine, styrene-butadiene rubber, acrylonitrile-butadiene rubber, and copolymers thereof.
- the slurry composition may further include a conductive material.
- the conductive material is not particularly limited and may be appropriately selected according to the type of battery and capacitor.
- carbon such as graphite or activated carbon
- nickel hydride secondary battery cobalt oxide may be used, and nickel powder, cobalt oxide, titanium oxide, carbon, or the like may be used in an anode.
- Examples of the carbon include acetylene black, furnace black, graphite, carbon fiber, and flanes.
- the amount of the conductive material used is usually 1 to 20 parts by weight, preferably 2 to 10 parts by weight, based on 100 parts by weight of the electrode active material.
- a viscosity modifier, a glidant, and the like may be further added to the slurry composition for an electrode according to other needs.
- An electrode according to another aspect of the present disclosure may include the dispersant.
- the electrode may be an anode or a cathode of a primary battery, a secondary battery, a capacitor, or a fuel cell, but is not limited thereto.
- V-65 2,2'-azobis-2,4-dimethylvaleronitrile
- 0.26 g of the synthesized dispersant, 1.24 g of multi walled carbon nanotube (diameter 10 nm, length 150 ⁇ m), 98.5 g of N-methyl pyrrolidone, and 200 g of 0.65 mm zirconia beads were put into a planter ball mill and then milled at 400 rpm for 30 g.
- a dispersion was prepared by minute dispersion.
- a dispersion was prepared in the same manner as in Example 1, except that 82.5 g of stearyl methacrylate and 17.5 g of acrylic acid were used instead of 3-phenoxy benzyl acrylate.
- a dispersion was prepared in the same manner as in Example 1, except that 50 g of 3-phenoxy benzyl acrylate and 50 g of lauryl methacrylate were used instead of stearyl methacrylate without using acrylic acid.
- a dispersion was prepared in the same manner as in Example 1, except that 36.4 g of benzyl methacrylate, 52.4 g of stearyl methacrylate, and 11.2 g of acrylic acid were used instead of 3-phenoxy benzyl acrylate.
- a dispersion was prepared in the same manner as in Example 1, except that 62.9 g of 3-phenoxy benzyl acrylate and 23.7 g of butyl acrylate instead of stearyl methacrylate and 13.4 g of acrylic acid were used.
- a dispersion was prepared in the same manner as in Example 1, except that 376.2 g of N-methyl pyrrolidone was added instead of 209.1 g and the initial reaction temperature was 90 ° C instead of 65 ° C.
- a dispersion was prepared in the same manner as in Example 1 using hydrogenated nitrile butadiene rubber having a number average molecular weight of 70,000 as a dispersant.
- composition of the dispersant, the content of NMP, and the reaction conditions of the dispersions of Specific Examples 1 to 4 and Comparative Examples 1 to 4 are shown in Table 1 below.
- PBA 3-phenoxybenzyl acrylate
- SMA is stearyl methacrylate
- AA acrylic acid
- pyMMP is (1-pyrene)methyl 2-methyl-2-propenoate
- LMA lauryl methacrylate.
- MAA represents methacrylic acid
- BMA represents benzyl methacrylate
- BA represents butyl acrylate, respectively.
- the number average molecular weight of the dispersants of Examples 1 to 4 and Comparative Examples 1 to 5 was measured by the GPC method.
- the viscosity of the dispersions of Examples 1 to 4 and Comparative Examples 1 to 5 was measured with a rheometer, and the viscosity when the shear rate was 10 was indicated, and the particle size was measured using a Mastersizer 3000 (manufacturer: Malvern Panalytical) The particle size of D50 was indicated.
- the measured number average molecular weight, NMP solubility, dispersion viscosity, and particle size of the carbon nanotubes dispersed in the dispersions of Examples 1 to 4 and Comparative Examples 1 to 5 are shown in Table 2 below.
- Comparative Example 3 which had a low number average molecular weight of 3,506, did not dissolve well in NMP, resulting in phase separation, and carbon nanotubes were not sufficiently dispersed, resulting in It was confirmed that the particle size was very large compared to Examples 1 to 4.
- Comparative Example 5 in which a conventional dispersant was used instead of a copolymer dispersant, it was confirmed that the particle size of the carbon nanotubes increased because the nanotubes were not sufficiently dispersed compared to Examples 1 to 4.
- the dispersions of Examples 1 to 4 were superior to the dispersions of Comparative Examples 1 to 5 in at least one aspect of viscosity and particle size of the carbon nanotubes.
- the dispersions of Examples 1 to 4 can be expected to have excellent dispersion effects even when relatively small amounts are used in various fields requiring dispersion of carbon materials through an appropriate balance of viscosity and particle size of carbon nanotubes.
- the copolymer according to the present invention has an effect of dispersing a carbon material (particularly, a carbon material) efficiently with only a small amount as a dispersant.
- dispersion using the dispersant of the present invention can be used in various fields (eg, batteries, capacitor electrodes, etc.) requiring dispersion of carbon materials.
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Abstract
Description
Claims (16)
- 하기 화학식 1로 표시되는,공중합체.[화학식 1]상기 화학식 1 에서,R1 내지 R9은 각각 독립적으로 수소, 탄소수 1 내지 4의 선형 또는 분지형 탄화수소이고,R'1 은 탄소수 5 내지 22의 선형 또는 분지형 지방족 탄화수소이며,R'2 는 치환되거나 치환되지 않은 2개 이상의 방향족 고리를 포함하고,R'3은 사이아노(CN), 피롤리돈(NC4H6O) 및 카복실산(COOH)으로 이루어진 그룹에서 선택된 어느 하나 이상이며,m, n은 각각 독립적으로 0 내지 4,000의 정수이고,l은 1 내지 7,000의 정수이다.(단, m, n 중 어느 하나가 0인 경우, 나머지는 0일 수 없다)
- 제1항에 있어서,R'1은 n-펜틸, n-헥실, n-헵틸, n-옥틸, 2-에틸헥실, n-노닐, n-데실, n-운데실, 라우릴, n-도데실, n-트리데실, n-테트라데실, n-펜타데실, 세틸, n-헥사데실, n-헵타데실, 스테아릴, n-옥타데실, n-노나데실, n-이코실, n-헨이코실, n-도코실, iso-펜틸, iso-헵틸, iso-옥틸, iso-노닐, iso-데실, iso-운데실, iso-도데실, iso-트리데실, iso-테트라데실, iso-펜타데실, iso-세틸, iso-헥사데실, iso-헵타데실, iso-스테아릴, iso-옥타데실, iso-노나데실, iso-이코실, iso-헨이코실 및 iso-도코실로 이루어진 그룹에서 선택된 어느 하나 이상을 포함하는,공중합체.
- 제1항에 있어서,R'2는 치환되거나 치환되지 않은 벤질(benzyl), 페닐(phenyl), 페녹시(phenoxy), 나프탈렌(naphthalene), 안트라센(anthracene) 및 피렌(pyrene)으로 이루어진 그룹에서 선택된 어느 하나 이상을 포함하는,공중합체.
- 제1항에 있어서,R'2는 3-페녹시 벤질(3-phenoxy benzyl), 1-나프틸(1-naphthyl), 2-나프틸(2-naphthyl), 9-안트라세닐메틸(9-anthracene methyl) 및 1-피렌메틸(1-pyrene methyl)으로 이루어진 그룹에서 선택된 어느 하나 이상을 포함하는,공중합체.
- 제1항에 있어서,R'2를 포함하는 단량체는 3-페녹시 벤질 아크릴레이트(3-phenoxy benzyl acrylate) 및 (1-피렌)메틸 2-메틸-2-프로페노에이트((1-pyrene) 2-methyl-2-propenoate)로 이루어진 그룹에서 선택된 어느 하나 이상인,공중합체.
- 제1항에 있어서,상기 공중합체는 랜덤 또는 블록 공중합체인,공중합체.
- 제1항에 있어서,상기 공중합체의 수평균 분자량이 5,000 ~ 1,000,000인,공중합체.
- 제1항 내지 제7항 중 어느 한 항의 공중합체를 포함하는,분산제.
- 제8항의 분산제; 및용매;를 포함하는,분산액.
- 제9항에 있어서,상기 용매는 N-메틸-2-피롤리돈(N-methyl-2-pyrrolidone), N-에틸-2-피롤리돈(N-ethyl-2-pyrrolidone), 디메틸포름아마이드(dimethylformamide), 디메틸아세트아미드(dimethylacetamide), 디메틸 설폭사이드(dimethyl sulfoxide) 및 γ-부티로락톤(γ-butyrolactone)으로 이루어진 그룹에서 선택된 어느 하나 이상인,분산액.
- 제9항에 있어서,탄소 재료를 추가로 포함하는.분산액.
- 제11항에 있어서,상기 탄소 재료는 흑연, 활성탄, 카본블랙, 단일벽 탄소 나노튜브, 다중벽 탄소 나노튜브, 플러렌 및 그래핀으로 이루어진 그룹에서 선택된 어느 하나 이상인,분산액.
- 제12항에 있어서,상기 분산액에 고형분이 1.5wt% 포함될 때, 상기 분산액의 점도가 3,300~18,000 cps이고,상기 분산액에 분산된 상기 단일벽 탄소 나노튜브, 상기 다중벽 탄소 나노튜브 또는 이들의 조합의 평균 입도(D50)가 10μm 이하인,분산액.
- 제8항의 분산제를 포함하는,전극용 슬러리 조성물.
- 제8항의 분산제를 포함하는,전극.
- 제8항의 분산제를 포함하는,이차전지.
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KR20170055923A (ko) * | 2015-11-12 | 2017-05-22 | 간사이 페인트 가부시키가이샤 | 리튬 이온 전지 양극용 도전 페이스트 및 리튬 이온 전지 양극용 합재 페이스트 |
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