CN219820848U - Soft package plastic-aluminum membrane - Google Patents
Soft package plastic-aluminum membrane Download PDFInfo
- Publication number
- CN219820848U CN219820848U CN202320502417.2U CN202320502417U CN219820848U CN 219820848 U CN219820848 U CN 219820848U CN 202320502417 U CN202320502417 U CN 202320502417U CN 219820848 U CN219820848 U CN 219820848U
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- CN
- China
- Prior art keywords
- layer
- film
- aluminum
- soft
- plastic
- 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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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 39
- 239000012528 membrane Substances 0.000 title claims abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 88
- 239000010954 inorganic particle Substances 0.000 claims abstract description 48
- 229920006255 plastic film Polymers 0.000 claims abstract description 31
- 239000002985 plastic film Substances 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011888 foil Substances 0.000 claims abstract description 15
- 239000002313 adhesive film Substances 0.000 claims abstract description 13
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- 239000012790 adhesive layer Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 229920006284 nylon film Polymers 0.000 claims description 8
- 229920006267 polyester film Polymers 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000002238 attenuated effect Effects 0.000 abstract description 2
- 239000005030 aluminium foil Substances 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 229920006264 polyurethane film Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000007306 turnover 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
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of aluminum plastic films, and particularly relates to a soft-coated aluminum plastic film. This soft package plastic-aluminum membrane includes: an inorganic particle layer, an outer layer film, an aluminum foil layer and a PP layer which are sequentially laminated from outside to inside; wherein the inorganic particle layer comprises: a polyurethane adhesive film positioned on the outer surface of the outer layer film; and inorganic particles embedded in the polyurethane adhesive film and extending out of the outer surface of the polyurethane adhesive film; an adhesive layer is arranged between the outer layer film and the aluminum foil layer. The outermost layer of the soft-coated aluminum-plastic film is provided with an inorganic particle layer; compared with the existing outer layer film, the inorganic particle layer has uneven surface and higher roughness, and the structure has higher surface energy and cannot be attenuated too fast under the influence of ambient temperature and humidity.
Description
Technical Field
The utility model belongs to the technical field of aluminum plastic films, and particularly relates to a soft-coated aluminum plastic film.
Background
The application of the lithium ion battery is mainly focused on the fields of 3C electronic products, new energy automobiles and energy storage. The soft-coated aluminum plastic film is used as an external packaging material of the lithium ion battery cell and is almost applied to all 3C electronic products. Along with the driving of related policies of new energy in China, the soft-package aluminum-plastic film has the advantages of light weight and high safety, and is widely popularized in power batteries and energy storage batteries of new energy automobiles.
In the lithium ion battery production process, in order to achieve traceability for each battery cell, code spraying or bar code printing and production sequences are carried out on the surface of the soft-package aluminum-plastic film. Some manufacturers will also print logo patterns. This would require a higher surface energy for the outer layer of the soft pack plastic-aluminum film to ensure the integrity and clarity of the code or print. At present, different lithium ion battery manufacturers choose different code spraying devices, and the ink spraying formulas are more various. The outer layer of the existing soft-coated aluminum-plastic film is a nylon film or a polyester film, the surface energy of the soft-coated aluminum-plastic film is low, about 30dyn/cm, and corona or plasma treatment mode is adopted in the market to improve the surface energy of the soft-coated aluminum-plastic film.
The surface energy of the soft-coated aluminum-plastic film outer layer material treated by corona or plasma can be improved from 30dyn/cm to 40dyn/cm or even higher, but the stability is poor. In particular, when exposed to a normal air environment, the surface energy of the air is reduced to 32dyn/cm in about 2 weeks under the influence of humidity and temperature. The whole production process of the soft plastic-aluminum film, the inventory turnover period and the client-side production period generally need 1-2 months. Therefore, there is a need to develop a soft plastic aluminum film with an outer layer having high surface energy and which does not decay too fast under the influence of ambient temperature and humidity.
Disclosure of Invention
The utility model aims to provide a soft-package aluminum-plastic film, which aims to solve the technical problem that the surface energy of the outer layer of the traditional soft-package aluminum-plastic film is influenced by ambient temperature and humidity and decays too fast.
In order to solve the technical problems, the utility model provides a soft-coated aluminum-plastic film, which comprises the following components: an inorganic particle layer, an outer layer film, an aluminum foil layer and a PP layer which are sequentially laminated from outside to inside; wherein the inorganic particle layer comprises: a polyurethane adhesive film positioned on the outer surface of the outer layer film; and inorganic particles embedded in the polyurethane adhesive film and extending out of the outer surface of the polyurethane adhesive film; an adhesive layer is arranged between the outer layer film and the aluminum foil layer.
Further, the inorganic particles are one or a combination of more of silicon dioxide, titanium dioxide, cerium dioxide and zirconium dioxide.
Further, the particle diameter of the inorganic particles is 0.5 to 10um.
Further, the particle diameter of the inorganic particles is 0.5 to 5um.
Further, the thickness of the inorganic particle layer is 1um to 10um.
Further, the thickness of the inorganic particle layer is 1um to 5um.
Further, the particle size of the inorganic particles is larger than the thickness of the polyurethane adhesive film.
Further, the outer layer film is a nylon film, a polyester film or a composite material of the nylon film and the polyester film.
Further, the thickness of the outer layer film is 15-40 um; the thickness of the aluminum foil layer is 30-80 um; the thickness of the PP layer is 30-80 um.
Further, the aluminum foil layer and the PP layer are bonded through a polyolefin adhesive or are bonded through PP melting.
The utility model has the beneficial effects that the outermost layer of the soft-coated aluminum-plastic film is provided with an inorganic particle layer; compared with the existing outer layer film, the inorganic particle layer has uneven surface and higher roughness, and the structure has higher surface energy and cannot be attenuated too fast under the influence of ambient temperature and humidity.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a preferred embodiment of the soft plastic aluminum film of the present utility model.
In the figure:
an inorganic particle layer 1, a polyurethane adhesive film 11, inorganic particles 12, an outer layer film 2, an aluminum foil layer 3, a PP layer 4 and an adhesive layer 5.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1, this embodiment provides a soft plastic-aluminum film, including: an inorganic particle layer 1, an outer layer film 2, an aluminum foil layer 3 and a PP layer 4 which are sequentially laminated from outside to inside; wherein the inorganic particle layer 1 comprises: a polyurethane adhesive film 11 positioned on the outer surface of the outer film 2; and inorganic particles 12 embedded in the polyurethane film 11 and protruding from the outer surface of the polyurethane film 11; an adhesive layer 5 is arranged between the outer layer film 2 and the aluminum foil layer 3.
In the present embodiment, preferably, the inorganic particles 12 are one or a combination of more of silica, titania, ceria, and zirconia; further preferably, the inorganic particles 12 are silica.
In the present embodiment, the particle size of the inorganic particles 12 is preferably 0.5um to 10um; further preferably, the particle diameter of the inorganic particles 12 is 0.5 to 5. Mu.m.
In this embodiment, the thickness of the inorganic particle layer 1 is preferably 1um to 10um; further preferably, the thickness of the inorganic particle layer 1 is 1um to 5um.
In this embodiment, it is preferable that the particle diameter of the inorganic particles 12 is larger than the thickness of the polyurethane film 11.
In this embodiment, the outer film 2 is preferably a nylon film, a polyester film, or a composite of both.
In this embodiment, the thickness of the outer layer film 2 is preferably 15um to 40um; may be 15um, 20um, 25um, 30um, 35um, 40um.
In this embodiment, the thickness of the aluminum foil layer 3 is preferably 30um to 80um; may be 30um, 40um, 50um, 60um, 70um, 80um.
In this embodiment, preferably, the thickness of the PP layer 4 is 30um to 80um; may be 30um, 40um, 50um, 60um, 70um, 80um.
In this embodiment, it is preferable that the aluminum foil layer 3 and the PP layer 4 are bonded by a polyolefin adhesive or by PP fusion.
Example 2
On the basis of the above, this embodiment provides a soft package plastic-aluminum membrane of high surface energy, inorganic particle is silica, inorganic particle's particle diameter is 0.5um, inorganic particle layer's thickness is 1um, outer film is nylon film, outer film's thickness is 15um, aluminium foil layer thickness is 30um, PP layer thickness is 30um, laminates with polyolefin binder between aluminium foil layer and the PP layer.
After the high-surface-energy soft-coated aluminum plastic film is placed in a natural environment for 2 months, the high-surface-energy soft-coated aluminum plastic film is tested by adopting an Arcotest dyne pen in Germany, and the surface energy is not lower than 44dyn/cm.
Example 3
On the basis of the above, this embodiment provides a soft package plastic-aluminum membrane of high surface energy, inorganic particle is silica, inorganic particle's particle diameter is 5um, inorganic particle layer's thickness is 5um, outer film is polyester film, outer film's thickness is 25um, aluminium foil layer thickness is 40um, PP layer thickness is 80um, through PP fusion laminating between aluminium foil layer and the PP layer.
After the high-surface-energy soft-coated aluminum plastic film is placed in a natural environment for 2 months, the high-surface-energy soft-coated aluminum plastic film is tested by adopting an Arcotest dyne pen in Germany, and the surface energy is not lower than 44dyn/cm.
Example 4
On the basis of the above, this embodiment provides a soft package plastic-aluminum membrane of high surface energy, inorganic particle is zirconium dioxide, the particle diameter of inorganic particle is 2um, the thickness of inorganic particle layer is 3um, outer film is nylon film and polyester film's combined material, outer film's thickness is 25um, aluminium foil layer thickness is 55um, PP layer thickness is 70um, through PP fusion laminating between aluminium foil layer and the PP layer.
After the high-surface-energy soft-coated aluminum plastic film is placed in a natural environment for 2 months, the high-surface-energy soft-coated aluminum plastic film is tested by adopting an Arcotest dyne pen in Germany, and the surface energy is not lower than 44dyn/cm.
Comparative example 1
The specific embodiment is the same as in example 2, but the surface is not provided with an inorganic particle layer. After 2 weeks of standing in natural environment, the surface energy was measured with an Arcotest dyne pen, germany, and was 32dyn/cm.
Comparative example 2
The specific embodiment is the same as in example 3, but the surface is not provided with an inorganic particle layer, and the outer film is subjected to corona treatment. After 2 weeks of standing in natural environment, the surface energy was measured with an Arcotest dyne pen, germany, and was 32dyn/cm.
As shown by the detection result, the soft-coated aluminum-plastic film provided by the embodiment of the utility model has higher surface energy and can be kept stable for a long time in natural environment.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. The utility model provides a soft package plastic-aluminum membrane which characterized in that includes:
an inorganic particle layer (1), an outer layer film (2), an aluminum foil layer (3) and a PP layer (4) which are sequentially laminated from outside to inside; wherein the method comprises the steps of
The inorganic particle layer (1) comprises:
a polyurethane adhesive film (11) positioned on the outer surface of the outer layer film (2); and
inorganic particles (12) embedded in the polyurethane adhesive film (11) and extending out of the outer surface of the polyurethane adhesive film (11);
an adhesive layer (5) is arranged between the outer layer film (2) and the aluminum foil layer (3).
2. The soft aluminum-plastic film according to claim 1, wherein,
the inorganic particles (12) are one or a combination of more of silicon dioxide, titanium dioxide, cerium dioxide and zirconium dioxide.
3. The soft aluminum-plastic film according to claim 1, wherein,
the particle diameter of the inorganic particles (12) is 0.5-10 um.
4. The soft aluminum-plastic film coated with aluminum alloy according to claim 3,
the particle diameter of the inorganic particles (12) is 0.5-5 um.
5. The soft aluminum-plastic film according to claim 1, wherein,
the thickness of the inorganic particle layer (1) is 1-10 um.
6. The soft plastic-aluminum film according to claim 5, wherein,
the thickness of the inorganic particle layer (1) is 1 um-5 um.
7. The soft aluminum-plastic film according to claim 1, wherein,
the particle size of the inorganic particles (12) is larger than the thickness of the polyurethane adhesive film (11).
8. The soft aluminum-plastic film according to claim 1, wherein,
the outer layer film (2) is a nylon film, a polyester film or a composite material of the nylon film and the polyester film.
9. The soft aluminum-plastic film according to claim 1, wherein,
the thickness of the outer layer film (2) is 15-40 um;
the thickness of the aluminum foil layer (3) is 30-80 um;
the thickness of the PP layer (4) is 30-80 um.
10. The soft aluminum-plastic film according to claim 1, wherein,
the aluminum foil layer (3) and the PP layer (4) are bonded through a polyolefin adhesive or are bonded through PP melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320502417.2U CN219820848U (en) | 2023-03-15 | 2023-03-15 | Soft package plastic-aluminum membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320502417.2U CN219820848U (en) | 2023-03-15 | 2023-03-15 | Soft package plastic-aluminum membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219820848U true CN219820848U (en) | 2023-10-13 |
Family
ID=88250225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320502417.2U Active CN219820848U (en) | 2023-03-15 | 2023-03-15 | Soft package plastic-aluminum membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219820848U (en) |
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2023
- 2023-03-15 CN CN202320502417.2U patent/CN219820848U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |