CN111423518A - 一种锂电池粘结剂羧甲基纤维素盐的合成方法 - Google Patents
一种锂电池粘结剂羧甲基纤维素盐的合成方法 Download PDFInfo
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- CN111423518A CN111423518A CN201911144131.6A CN201911144131A CN111423518A CN 111423518 A CN111423518 A CN 111423518A CN 201911144131 A CN201911144131 A CN 201911144131A CN 111423518 A CN111423518 A CN 111423518A
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- Prior art keywords
- carboxymethyl cellulose
- lithium
- lithium battery
- cellulose
- reaction
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- Granted
Links
- 239000001768 carboxy methyl cellulose Substances 0.000 title claims abstract description 54
- 229920002134 Carboxymethyl cellulose Polymers 0.000 title claims abstract description 41
- 235000010948 carboxy methyl cellulose Nutrition 0.000 title claims abstract description 41
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 40
- 239000008112 carboxymethyl-cellulose Substances 0.000 title claims abstract description 38
- 239000011230 binding agent Substances 0.000 title claims abstract description 20
- 150000003839 salts Chemical class 0.000 title claims abstract description 18
- 238000010189 synthetic method Methods 0.000 title description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims abstract description 54
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 34
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 16
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 14
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940106681 chloroacetic acid Drugs 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 229920002678 cellulose Polymers 0.000 claims description 25
- 239000001913 cellulose Substances 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000007795 chemical reaction product Substances 0.000 claims description 15
- 238000006467 substitution reaction Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 230000002194 synthesizing effect Effects 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims 1
- 238000007873 sieving Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 5
- 125000001424 substituent group Chemical group 0.000 abstract description 3
- 238000001308 synthesis method Methods 0.000 abstract description 3
- 238000007385 chemical modification Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 229920005615 natural polymer Polymers 0.000 abstract description 2
- 238000007613 slurry method Methods 0.000 abstract description 2
- 238000004537 pulping Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 27
- 239000011734 sodium Substances 0.000 description 18
- 241000219146 Gossypium Species 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000012216 screening Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000006266 etherification reaction Methods 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000006230 acetylene black Substances 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QXKAIJAYHKCRRA-BXXZVTAOSA-N D-ribonic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)C(O)=O QXKAIJAYHKCRRA-BXXZVTAOSA-N 0.000 description 2
- 235000009438 Gossypium Nutrition 0.000 description 2
- 241000219071 Malvaceae Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
- C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
产物 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 |
CMC-Na | 81% | 71% | 51% | 62% | 90% |
CMC-Li | 19%% | 29% | 49% | 38% | 10% |
Claims (8)
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CN201911144131.6A CN111423518B (zh) | 2019-11-21 | 2019-11-21 | 一种锂电池粘结剂羧甲基纤维素盐的合成方法 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112751034A (zh) * | 2020-12-31 | 2021-05-04 | 远景动力技术(江苏)有限公司 | 锂离子电池用负极浆料、负极以及锂离子电池 |
CN114335541A (zh) * | 2021-12-29 | 2022-04-12 | 蜂巢能源科技股份有限公司 | 一种正极浆料及其制备方法和应用 |
CN114805614A (zh) * | 2022-05-18 | 2022-07-29 | 向能新型材料科技(河北)有限公司 | 一种磺甲基纤维素锂作为锂电池粘结剂的制备方法 |
DE102022104702A1 (de) | 2021-07-02 | 2023-01-05 | Chongqing Lihong Fine Chemicals Co., Ltd | Lithiumcarboxymethylcellulose hoher viskosität und herstellungsverfahren dafür und anwendung davon |
CN116410340A (zh) * | 2023-05-15 | 2023-07-11 | 青岛科技大学 | 一种秸秆/杨木直接制备羧甲基纤维素锂的方法 |
CN117164728A (zh) * | 2023-09-06 | 2023-12-05 | 山东扬子生物科技有限公司 | 一种淤浆法制备锂电池用cmc的生产工艺 |
WO2024259968A1 (zh) * | 2023-06-20 | 2024-12-26 | 宁德时代新能源科技股份有限公司 | 聚合物、负极极片、电池和用电装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070112185A1 (en) * | 2003-12-03 | 2007-05-17 | Kemira Oyj | Method for preparing a cellulose ether |
CN105218686A (zh) * | 2015-10-20 | 2016-01-06 | 湖州博仁纺织品有限公司 | 一种新型活性染料印花用增稠剂的制备方法 |
JP6351821B1 (ja) * | 2017-12-07 | 2018-07-04 | 日本製紙株式会社 | カルボキシメチル化セルロースナノファイバーの製造方法 |
CN108473594A (zh) * | 2016-02-26 | 2018-08-31 | 第工业制药株式会社 | 羧甲基纤维素或其盐的制造方法以及电极粘合剂 |
-
2019
- 2019-11-21 CN CN201911144131.6A patent/CN111423518B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070112185A1 (en) * | 2003-12-03 | 2007-05-17 | Kemira Oyj | Method for preparing a cellulose ether |
CN105218686A (zh) * | 2015-10-20 | 2016-01-06 | 湖州博仁纺织品有限公司 | 一种新型活性染料印花用增稠剂的制备方法 |
CN108473594A (zh) * | 2016-02-26 | 2018-08-31 | 第工业制药株式会社 | 羧甲基纤维素或其盐的制造方法以及电极粘合剂 |
JP6351821B1 (ja) * | 2017-12-07 | 2018-07-04 | 日本製紙株式会社 | カルボキシメチル化セルロースナノファイバーの製造方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112751034A (zh) * | 2020-12-31 | 2021-05-04 | 远景动力技术(江苏)有限公司 | 锂离子电池用负极浆料、负极以及锂离子电池 |
CN112751034B (zh) * | 2020-12-31 | 2022-11-25 | 远景动力技术(江苏)有限公司 | 锂离子电池用负极浆料、负极以及锂离子电池 |
DE102022104702A1 (de) | 2021-07-02 | 2023-01-05 | Chongqing Lihong Fine Chemicals Co., Ltd | Lithiumcarboxymethylcellulose hoher viskosität und herstellungsverfahren dafür und anwendung davon |
CN114335541A (zh) * | 2021-12-29 | 2022-04-12 | 蜂巢能源科技股份有限公司 | 一种正极浆料及其制备方法和应用 |
CN114805614A (zh) * | 2022-05-18 | 2022-07-29 | 向能新型材料科技(河北)有限公司 | 一种磺甲基纤维素锂作为锂电池粘结剂的制备方法 |
CN116410340A (zh) * | 2023-05-15 | 2023-07-11 | 青岛科技大学 | 一种秸秆/杨木直接制备羧甲基纤维素锂的方法 |
WO2024259968A1 (zh) * | 2023-06-20 | 2024-12-26 | 宁德时代新能源科技股份有限公司 | 聚合物、负极极片、电池和用电装置 |
CN117164728A (zh) * | 2023-09-06 | 2023-12-05 | 山东扬子生物科技有限公司 | 一种淤浆法制备锂电池用cmc的生产工艺 |
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