CN104966799A - Multifunctional composite packaging barrier aluminum-plastic film for lithium battery - Google Patents
Multifunctional composite packaging barrier aluminum-plastic film for lithium battery Download PDFInfo
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- CN104966799A CN104966799A CN201510408453.2A CN201510408453A CN104966799A CN 104966799 A CN104966799 A CN 104966799A CN 201510408453 A CN201510408453 A CN 201510408453A CN 104966799 A CN104966799 A CN 104966799A
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- layer
- adhesive layer
- plastic film
- resin
- composite packaging
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- 239000002985 plastic film Substances 0.000 title claims abstract description 24
- 229920006255 plastic film Polymers 0.000 title claims abstract description 24
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 16
- 230000004888 barrier function Effects 0.000 title abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 63
- 239000012790 adhesive layer Substances 0.000 claims abstract description 36
- -1 polypropylene Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011737 fluorine Substances 0.000 claims abstract description 18
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 18
- 239000004677 Nylon Substances 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 229920001778 nylon Polymers 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 22
- 239000005025 cast polypropylene Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 14
- 239000005030 aluminium foil Substances 0.000 claims description 13
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 12
- 229920001684 low density polyethylene Polymers 0.000 claims description 9
- 239000004702 low-density polyethylene Substances 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 6
- 229920006362 Teflon® Polymers 0.000 claims description 6
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 6
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920001519 homopolymer Polymers 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 229920001897 terpolymer Polymers 0.000 claims description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 6
- 229920001959 vinylidene polymer Polymers 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000004708 Very-low-density polyethylene Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 229920001179 medium density polyethylene Polymers 0.000 claims description 3
- 239000004701 medium-density polyethylene Substances 0.000 claims description 3
- 229920001866 very low density polyethylene Polymers 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 14
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 2
- 229920013716 polyethylene resin Polymers 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a multifunctional composite packaging barrier aluminum-plastic film for a lithium battery. The multifunctional composite packaging barrier aluminum-plastic film comprises a poly-fluorine resin and non-stretched flow-casting polypropylene resin and polyethylene resin co-extrusion layer, a first adhesive layer, a high-water-absorption polypropylene layer, a second adhesive layer, an aluminum foil layer, a third adhesive layer, a nylon layer, a fourth adhesive layer and a fluorine film layer, and the aluminum-plastic film is prepared by sequentially laminating the poly-fluorine resin and non-stretched flow-casting polypropylene resin and polyethylene resin co-extrusion layer, the first adhesive layer, the high-water-absorption polypropylene layer, the second adhesive layer, the aluminum-foil layer, the third adhesive layer, the nylon layer, the fourth adhesive layer and the fluorine film layer from inside to outside. The multifunctional composite packaging barrier aluminum-plastic film is produced by adopting a multilayer adhesion and laminating compositing technology, is simple to process, excellent in barrier performance, heat sealing performance, extension performance and corrosion resistance, capable of meeting the quality requirement of the lithium ion battery on the performance of an outer packaging material and capable of being widely applied to the packaging of the polymer lithium ion battery.
Description
Technical field
The present invention relates to battery packaging material field, particularly the multi-functional obstruct aluminum plastic film of a kind of lithium battery composite packaging.
Background technology
Polymer Li-ion battery has more light weight, more high-capacitance and long service life and fail safe more high due to it compared with existing liquid lithium ionic cell, has become the main development direction of Green Chemistry new forms of energy.
The quality of polymer Li-ion battery is not only in close relations with lithium-ion electrolyte sole mass, and also has very large correlation with its external packing quality.Polymer Li-ion battery housing material, due to its special quality requirement, need have many-sided performances such as excellent heat sealability, barrier property and ductility usually to meet the requirement of its lithium ion battery to housing material.At present, existing housing material all better can not meet the quality requirement of lithium ion battery to housing material, therefore improves existing lithium ion battery outer cover material extremely urgent.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the multi-functional obstruct aluminum plastic film of a kind of lithium battery composite packaging, this aluminum plastic film has excellent barrier property, heat sealability, ductility and decay resistance, the quality requirement of lithium ion battery to housing material performance can be met, can be widely used in polymer Li-ion battery packaging.
Technical scheme of the present invention is: the multi-functional obstruct aluminum plastic film of a kind of lithium battery composite packaging, comprise poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer, first adhesive layer, high water suction polypropylene layer, second adhesive layer, aluminium foil layer, 3rd adhesive layer, nylon layer, 4th adhesive layer, fluorine rete, described aluminum plastic film stacks gradually described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer from inside to outside, first adhesive layer, high water suction polypropylene layer, second adhesive layer, aluminium foil layer, 3rd adhesive layer, nylon layer, 4th adhesive layer, fluorine rete.
As a preferred embodiment of the present invention, described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer thickness are 10 ~ 50 μm.
As a preferred embodiment of the present invention, described poly-fluororesin and the poly-fluororesin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer are polyvinyl fluoride, the binary of Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, one or more in modified Teflon combine.
As a preferred embodiment of the present invention, described poly-fluororesin and the polyvinyl resin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer are that one or more in LLDPE, low density polyethylene (LDPE), medium density polyethylene, high density polyethylene (HDPE), very low density polyethylene (LDPE) combine.
As a preferred embodiment of the present invention, the material of described height water suction polypropylene layer is that polypropylene and high hydroscopic resin blended melting co-extrusion are formed, and the thickness of described height water suction polypropylene layer is 10 ~ 100 μm.
As a preferred embodiment of the present invention, in described height water suction polypropylene layer, content of super water absorbent resin scope is 1% ~ 50%.
As a preferred embodiment of the present invention, the material of described fluorine rete is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete is 3 ~ 30 μm.
As a preferred embodiment of the present invention, described aluminium foil layer thickness is 30 ~ 60 μm.
After adopting technique scheme, the invention has the beneficial effects as follows:
First, Corrosion Protection and heat sealability that polyethylene and poly-fluororesin effectively can improve hot sealing layer is added in the present invention in hot sealing layer; Secondly, increase by a floor height water suction polypropylene layer at the internal layer of aluminium foil, effectively can prevent steam in natural environment from entering electrolyte, reduce the probability that electrolyte produces other acidic materials or gas, effectively extend the useful life of lithium ion battery.This aluminum plastic film adopts multi-layered bonded, lamination complex technique to produce, processing is simple, there is excellent barrier property, heat sealability, ductility and decay resistance, the quality requirement of lithium ion battery to housing material performance can be met, can be widely used in polymer Li-ion battery packaging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 is poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer; 2 is the first adhesive layer; 3 is high water suction polypropylene layer; 4 is the second adhesive layer; 5 is aluminium foil layer; 6 is the 3rd adhesive layer; 7 is nylon layer; 8 is the 4th adhesive layer; 9 is fluorine rete.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, the invention provides the multi-functional obstruct aluminum plastic film of a kind of lithium battery composite packaging, comprise poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer 1, first adhesive layer 2, high water suction polypropylene layer 3, second adhesive layer 4, aluminium foil layer 5, 3rd adhesive layer 6, nylon layer 7, 4th adhesive layer 8, fluorine rete 9, described aluminum plastic film stacks gradually described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer 1 from inside to outside, first adhesive layer 2, high water suction polypropylene layer 3, second adhesive layer 4, aluminium foil layer 5, 3rd adhesive layer 6, nylon layer 7, 4th adhesive layer 8, fluorine rete 9.
Described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer 1 thickness are 10 ~ 50 μm.
Described poly-fluororesin and the poly-fluororesin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer 1 are polyvinyl fluoride, the binary of Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, one or more in modified Teflon combine.
Described poly-fluororesin and the polyvinyl resin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer 1 are that one or more in LLDPE, low density polyethylene (LDPE), medium density polyethylene, high density polyethylene (HDPE), very low density polyethylene (LDPE) combine.
The material of described height water suction polypropylene layer 3 is that polypropylene and high hydroscopic resin blended melting co-extrusion are formed, and the thickness of described height water suction polypropylene layer is 10 ~ 100 μm.
In described height water suction polypropylene layer 3, content of super water absorbent resin scope is 1% ~ 50%, is preferably 5% ~ 20%.
The material of described fluorine rete 9 is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete 9 is 3 ~ 30 μm.
Described aluminium foil layer 5 thickness is 30 ~ 60 μm.
Manufacturing technology steps of the present invention is as follows:
1. by poly-fluororesin, do not stretch non-cast polypropylene and polyvinyl resin under certain extrusion condition, melting co-extrusion, form poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin co-extrusion thing;
2. polypropylene is mixed co-extrusion with water-absorbing resin, form high water suction acrylic resin thing;
3. pair aluminium foil surface carries out Passivation Treatment;
4. utilize adhesive to bond poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin co-extrusion thing, high absorb water acrylic resin thing, passivation aluminium foil, nylon and fluorine film, and carry out lamination compound, drying by above-mentioned lamination order, obtain aluminum plastic film finished product.
Product of the present invention reaches following index through mensuration:
1. peel strength test: electrolyte soaks 85 DEG C, 7 days, and film interlaminar strength is more than or equal to 8N/15mm;
2. permeability resistance test: soak 14 days in the water of 60 DEG C, without layering, weight change is less than 0.05 gram.
To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the multi-functional obstruct aluminum plastic film of lithium battery composite packaging, it is characterized in that, comprise poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer, first adhesive layer, high water suction polypropylene layer, second adhesive layer, aluminium foil layer, 3rd adhesive layer, nylon layer, 4th adhesive layer, fluorine rete, described aluminum plastic film stacks gradually described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer from inside to outside, first adhesive layer, high water suction polypropylene layer, second adhesive layer, aluminium foil layer, 3rd adhesive layer, nylon layer, 4th adhesive layer, fluorine rete.
2. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 1, it is characterized in that, described poly-fluororesin and do not stretch cast polypropylene resin and polyvinyl resin coextruded layer thickness are 10 ~ 50 μm.
3. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 2, it is characterized in that, described poly-fluororesin and the poly-fluororesin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer are polyvinyl fluoride, the binary of Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, one or more in modified Teflon combine.
4. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 2, it is characterized in that, described poly-fluororesin and the polyvinyl resin do not stretched in cast polypropylene resin and polyvinyl resin coextruded layer are that one or more in LLDPE, low density polyethylene (LDPE), medium density polyethylene, high density polyethylene (HDPE), very low density polyethylene (LDPE) combine.
5. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 1, it is characterized in that, the material of described height water suction polypropylene layer is that polypropylene and high hydroscopic resin blended melting co-extrusion are formed, and the thickness of described height water suction polypropylene layer is 10 ~ 100 μm.
6. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 5, it is characterized in that, in described height water suction polypropylene layer, content of super water absorbent resin scope is 1% ~ 50%.
7. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 1, it is characterized in that, the material of described fluorine rete is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete is 3 ~ 30 μm.
8. according to the multi-functional obstruct aluminum plastic film of the lithium battery composite packaging described in claim 1, it is characterized in that, described aluminium foil layer thickness is 30 ~ 60 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408453.2A CN104966799B (en) | 2015-07-13 | 2015-07-13 | A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408453.2A CN104966799B (en) | 2015-07-13 | 2015-07-13 | A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104966799A true CN104966799A (en) | 2015-10-07 |
| CN104966799B CN104966799B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408453.2A Active CN104966799B (en) | 2015-07-13 | 2015-07-13 | A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging |
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| CN (1) | CN104966799B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106129279A (en) * | 2016-08-22 | 2016-11-16 | 无锡华盈锂能新材有限公司 | Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof |
| CN111540848A (en) * | 2020-05-14 | 2020-08-14 | 华鼎国联四川动力电池有限公司 | Lithium ion battery aluminum plastic film and preparation method thereof |
| CN113276526A (en) * | 2021-05-19 | 2021-08-20 | 上海紫江彩印包装有限公司 | One-way water absorption composite membrane and preparation method and application thereof |
| CN113442476A (en) * | 2021-06-21 | 2021-09-28 | 天津新兴东方临近空间航天科技有限公司 | Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility |
| CN114407465A (en) * | 2022-02-14 | 2022-04-29 | 上海紫江新材料科技股份有限公司 | Polypropylene film for lithium battery aluminum plastic packaging film and preparation method thereof |
| CN115020878A (en) * | 2022-06-07 | 2022-09-06 | 江苏锦尚新材料有限公司 | Lithium battery aluminum plastic film with moisture absorbing and removing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115020878A (en) * | 2022-06-07 | 2022-09-06 | 江苏锦尚新材料有限公司 | Lithium battery aluminum plastic film with moisture absorbing and removing function |
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| CN104966799B (en) | 2018-01-19 |
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