CN109728234B - 一种孔径均一的锂电池隔膜及其制备方法 - Google Patents
一种孔径均一的锂电池隔膜及其制备方法 Download PDFInfo
- Publication number
- CN109728234B CN109728234B CN201811621967.6A CN201811621967A CN109728234B CN 109728234 B CN109728234 B CN 109728234B CN 201811621967 A CN201811621967 A CN 201811621967A CN 109728234 B CN109728234 B CN 109728234B
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- polypropylene
- core layer
- polyethylene
- battery separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title abstract description 12
- -1 polyethylene Polymers 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000004743 Polypropylene Substances 0.000 claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 claims abstract description 33
- 239000012792 core layer Substances 0.000 claims abstract description 31
- 239000011148 porous material Substances 0.000 claims abstract description 31
- 239000004698 Polyethylene Substances 0.000 claims abstract description 29
- 229920000573 polyethylene Polymers 0.000 claims abstract description 29
- 239000003822 epoxy resin Substances 0.000 claims abstract description 22
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 18
- 229920004889 linear high-density polyethylene Polymers 0.000 claims abstract description 14
- 229920005606 polypropylene copolymer Polymers 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000000137 annealing Methods 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000009998 heat setting Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 13
- 239000013078 crystal Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 8
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 230000008025 crystallization Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 12
- 239000002131 composite material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811621967.6A CN109728234B (zh) | 2018-12-28 | 2018-12-28 | 一种孔径均一的锂电池隔膜及其制备方法 |
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CN201811621967.6A CN109728234B (zh) | 2018-12-28 | 2018-12-28 | 一种孔径均一的锂电池隔膜及其制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN109728234A CN109728234A (zh) | 2019-05-07 |
CN109728234B true CN109728234B (zh) | 2021-05-25 |
Family
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CN201811621967.6A Active CN109728234B (zh) | 2018-12-28 | 2018-12-28 | 一种孔径均一的锂电池隔膜及其制备方法 |
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CN (1) | CN109728234B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110165123B (zh) * | 2019-05-15 | 2022-03-04 | 乐凯胶片股份有限公司 | 聚乙烯微孔膜及其制备方法和应用 |
CN111244364B (zh) * | 2020-01-18 | 2020-11-13 | 江苏厚生新能源科技有限公司 | 一种pvdf涂覆隔膜及其制备方法、锂离子电池 |
CN111391267A (zh) * | 2020-03-25 | 2020-07-10 | 石狮申泰新材料科技有限公司 | 一种锂电池隔膜的干法单拉生产工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101921429A (zh) * | 2010-08-17 | 2010-12-22 | 东华大学 | 超高分子量聚丙烯/环氧树脂复合膜及其制备方法 |
CN103407140A (zh) * | 2013-07-26 | 2013-11-27 | 常州大学 | 一种pp/pe/pp三层复合微孔膜的制备方法 |
CN103996814A (zh) * | 2014-06-04 | 2014-08-20 | 深圳市星源材质科技股份有限公司 | 热收缩率低的锂离子电池隔膜及其制备方法 |
CN104022249A (zh) * | 2014-06-26 | 2014-09-03 | 佛山市盈博莱科技有限公司 | 一种三层锂电池隔膜及其制备方法 |
KR20160129574A (ko) * | 2015-04-30 | 2016-11-09 | 주식회사 엘지화학 | 폴리올레핀 분리막 및 이의 제조방법 |
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2018
- 2018-12-28 CN CN201811621967.6A patent/CN109728234B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101921429A (zh) * | 2010-08-17 | 2010-12-22 | 东华大学 | 超高分子量聚丙烯/环氧树脂复合膜及其制备方法 |
CN103407140A (zh) * | 2013-07-26 | 2013-11-27 | 常州大学 | 一种pp/pe/pp三层复合微孔膜的制备方法 |
CN103996814A (zh) * | 2014-06-04 | 2014-08-20 | 深圳市星源材质科技股份有限公司 | 热收缩率低的锂离子电池隔膜及其制备方法 |
CN104022249A (zh) * | 2014-06-26 | 2014-09-03 | 佛山市盈博莱科技有限公司 | 一种三层锂电池隔膜及其制备方法 |
KR20160129574A (ko) * | 2015-04-30 | 2016-11-09 | 주식회사 엘지화학 | 폴리올레핀 분리막 및 이의 제조방법 |
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CN109728234A (zh) | 2019-05-07 |
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Application publication date: 20190507 Assignee: ANHUI JIAYANG NEW MATERIAL TECHNOLOGY CO.,LTD. Assignor: JIESHOU TIANHONG NEW MATERIAL Co.,Ltd. Contract record no.: X2024980002821 Denomination of invention: A lithium battery separator with uniform pore size and its preparation method Granted publication date: 20210525 License type: Common License Record date: 20240319 Application publication date: 20190507 Assignee: ANHUI HONGDA PLASTIC TECHNOLOGY CO.,LTD. Assignor: JIESHOU TIANHONG NEW MATERIAL Co.,Ltd. Contract record no.: X2024980002815 Denomination of invention: A lithium battery separator with uniform pore size and its preparation method Granted publication date: 20210525 License type: Common License Record date: 20240319 |