CN111969160B - 复合锂离子电池隔膜及其制备方法和锂离子电池、电子产品 - Google Patents
复合锂离子电池隔膜及其制备方法和锂离子电池、电子产品 Download PDFInfo
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- CN111969160B CN111969160B CN202010896905.7A CN202010896905A CN111969160B CN 111969160 B CN111969160 B CN 111969160B CN 202010896905 A CN202010896905 A CN 202010896905A CN 111969160 B CN111969160 B CN 111969160B
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- lithium ion
- ion battery
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- aramid fiber
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 88
- 239000002105 nanoparticle Substances 0.000 claims abstract description 63
- 239000002002 slurry Substances 0.000 claims abstract description 53
- 239000002904 solvent Substances 0.000 claims abstract description 43
- 239000011268 mixed slurry Substances 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000004760 aramid Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 230000009878 intermolecular interaction Effects 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 25
- 239000007822 coupling agent Substances 0.000 claims description 23
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000012986 modification Methods 0.000 claims description 19
- 230000004048 modification Effects 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 19
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 14
- -1 methacryloxy group Chemical group 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003607 modifier Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- 125000003700 epoxy group Chemical group 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 5
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 5
- 239000001856 Ethyl cellulose Substances 0.000 claims description 4
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 4
- 229920001249 ethyl cellulose Polymers 0.000 claims description 4
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 230000035699 permeability Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 229920003235 aromatic polyamide Polymers 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 125000003396 thiol group Chemical group [H]S* 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000007385 chemical modification Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000889 poly(m-phenylene isophthalamide) Polymers 0.000 description 1
- 229920003366 poly(p-phenylene terephthalamide) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Separators (AREA)
Abstract
Description
放电容量/mAh | 1000周容量保持率/% | |
实施例1 | 3580 | 91 |
实施例2 | 3575 | 90 |
对比例1 | 3550 | 86 |
对比例2 | 3560 | 87 |
对比例3 | 3542 | 82 |
放电倍率 | 放电电流 | 实施例1 | 实施例2 | 对比例1 | 对比例2 | 对比例3 |
0.5C | 1.25A | 100% | 100% | 99% | 100% | 99% |
2C | 5A | 95% | 94% | 91% | 92% | 90% |
4C | 10A | 90% | 88% | 83% | 85% | 80% |
6C | 15A | 85% | 83% | 77% | 80% | 74% |
8C | 20A | 81% | 80% | 73% | 75% | 69% |
10C | 25A | 78% | 75% | 67% | 70% | 62% |
12C | 30A | 73% | 72% | 63% | 68% | 57% |
14C | 35A | 68% | 66% | 58% | 62% | 51% |
16C | 40A | 60% | 58% | 50% | 52% | 45% |
Claims (10)
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CN115693024A (zh) * | 2021-07-31 | 2023-02-03 | 华为技术有限公司 | 复合隔膜、电化学装置、电子设备和移动终端 |
CN114243217B (zh) * | 2022-02-24 | 2022-05-13 | 湖南中锂新材料科技有限公司 | 锂离子电池复合隔膜及其制备方法 |
CN116826308B (zh) * | 2023-08-31 | 2023-11-28 | 天津市捷威动力工业有限公司 | 一种复合隔膜及其制备方法和二次电池 |
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CN103194898B (zh) * | 2013-03-27 | 2015-09-16 | 中国科学院长春应用化学研究所 | 芳纶纤维的表面改性方法、表面改性的芳纶纤维及静密封材料 |
CN103866554B (zh) * | 2014-03-18 | 2017-10-17 | 东华大学 | 一种高表面粘结性对位芳纶的制备方法 |
CN104404772B (zh) * | 2014-12-06 | 2016-09-07 | 苏州大学 | 一种表面改性芳纶纤维及其制备方法 |
WO2017107150A1 (zh) * | 2015-12-24 | 2017-06-29 | 深圳中兴创新材料技术有限公司 | 用于电池隔膜的涂料、电池隔膜及电池隔膜的制备方法 |
CN107492620A (zh) * | 2017-08-16 | 2017-12-19 | 广州鹏辉能源科技股份有限公司 | 一种耐高温锂电池隔膜及其制备方法 |
CN109192903A (zh) * | 2018-08-20 | 2019-01-11 | 合肥国轩高科动力能源有限公司 | 一种锂离子电池用包覆改性陶瓷涂覆隔膜的制备方法 |
CN110048063A (zh) * | 2019-03-25 | 2019-07-23 | 重庆云天化纽米科技股份有限公司 | 无机纳米颗粒改性芳纶浆液及芳纶涂覆的锂电池复合隔膜 |
CN110048057B (zh) * | 2019-03-25 | 2021-11-19 | 重庆恩捷纽米科技股份有限公司 | 表面改性pmma/pvdf混合涂覆的锂电池复合隔膜及其制备方法 |
CN111118881B (zh) * | 2020-01-17 | 2022-04-05 | 超美斯新材料股份有限公司 | 一种纳米氧化锌改性芳纶纤维及其制备方法 |
CN111430648B (zh) * | 2020-05-08 | 2023-05-12 | 深圳市华之美科技有限公司 | 一种聚酰亚胺锂离子电池隔膜、制备方法及锂离子电池 |
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