CN109483974A - A kind of aluminium plastic composite packaging film - Google Patents
A kind of aluminium plastic composite packaging film Download PDFInfo
- Publication number
- CN109483974A CN109483974A CN201810958407.3A CN201810958407A CN109483974A CN 109483974 A CN109483974 A CN 109483974A CN 201810958407 A CN201810958407 A CN 201810958407A CN 109483974 A CN109483974 A CN 109483974A
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- China
- Prior art keywords
- plastic composite
- composite packaging
- aluminium
- layer
- packaging film
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- 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.)
- Pending
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- 239000002131 composite material Substances 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- 229920003023 plastic Polymers 0.000 title claims abstract description 44
- 239000004033 plastic Substances 0.000 title claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000012785 packaging film Substances 0.000 title claims abstract description 43
- 229920006280 packaging film Polymers 0.000 title claims abstract description 43
- 239000004411 aluminium Substances 0.000 title claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 76
- 239000005030 aluminium foil Substances 0.000 claims abstract description 55
- -1 polypropylene Polymers 0.000 claims abstract description 47
- 229920006267 polyester film Polymers 0.000 claims abstract description 36
- 239000004743 Polypropylene Substances 0.000 claims abstract description 32
- 229920001155 polypropylene Polymers 0.000 claims abstract description 32
- 239000002344 surface layer Substances 0.000 claims abstract description 13
- 239000012790 adhesive layer Substances 0.000 claims description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002161 passivation Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000000415 inactivating effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 239000011112 polyethylene naphthalate Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 8
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 8
- 238000012856 packing Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010345 tape casting Methods 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- 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
- B32B15/04—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
- B32B15/09—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 polyesters
-
- 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
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of aluminium plastic composite packaging film, the aluminium plastic composite packaging film includes aluminium foil layer, polypropylene film and polyester film, the aluminium foil layer has the first surface and second surface being oppositely arranged, the polypropylene film is incorporated into the first surface of the aluminium foil layer, and the polyester film is incorporated into the second surface of the aluminium foil layer.Aluminium plastic composite packaging film of the invention can be used for packing lithium ion battery, wherein the polyester film is as surface layer, and the aluminium foil layer is as middle layer, and the polypropylene film is as internal layer.The surface layer of aluminium plastic composite packaging film of the invention has good electrolyte resistance corrosive nature, and the security risk of lithium ion battery in use can be effectively reduced.
Description
Technical field
The invention belongs to lithium ion battery packaging film technical fields, are related to a kind of lithium battery aluminium plastic composite packaging film.
Background technique
Aluminum-plastic composite membrane packaging is a kind of important manner of packing of lithium battery, opposite aluminum hull, steel shell and cylinder packaging, plastic-aluminum
Composite film packaging, which has, to be had a safety feature, and energy density is high, and internal resistance is small, the advantages such as flexible design, and current aluminum-plastic composite membrane is logical
Frequently with polyamide film as surface layer, aluminium foil is as middle layer, structure of the polypropylene film as internal layer.In lithium battery encapsulation
When fluid injection process, it is easy to will just be electrolysed drop and splash on the surface layer polyamide film of plastic-aluminum packaging film.Because polyamide is resistance to
Electrolyte property is very poor, is easy to form hickie by electrolytic corrosion, so that appearance of the lithium battery after encapsulated moulding is influenced, and
After nylon layer is corroded, aluminium foil can be exposed, exposed aluminium foil is used for a long time under hot and humid environment can be by slow rotten
Erosion, lithium battery also there is larger security risk.
Therefore, a kind of new lithium battery aluminium plastic composite packaging film how is provided, to improve lithium battery surface layer electrolyte resistance
Performance reduces the security risk of lithium battery in use, becomes those skilled in the art's important skill urgently to be resolved
Art problem.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of aluminium plastic composite packaging films, use
It is easy to influence lithium battery encapsulation appearance after molding by electrolytic corrosion in solving plastic-aluminum combined film surface in the prior art, and
Lithium battery is set to there are problems that larger security risk.
In order to achieve the above objects and other related objects, the present invention provides a kind of aluminium plastic composite packaging film, and the plastic-aluminum is multiple
Closing packaging film includes:
Aluminium foil layer has the first surface and second surface being oppositely arranged；
Polypropylene film is incorporated into the first surface of the aluminium foil layer；
Polyester film is incorporated into the second surface of the aluminium foil layer.
Optionally, it is connected between the polypropylene film and the aluminium foil layer by the first adhesive layer, the polyester film
It is connected between layer and the aluminium foil layer by the second adhesive layer.
Optionally, the thickness range of first adhesive layer is 1 μm~10 μm, the thickness model of second adhesive layer
Enclose is 1 μm~10 μm.
Optionally, the thickness range of the aluminium foil layer is 15 μm~80 μm.
Optionally, the first surface of the aluminium foil layer and the second surface of the aluminium foil layer have passed through chemistry
Method surface passivating treatment.
Optionally, inactivating treatment liquid used by the chemical conversion Passivation Treatment includes phosphoric acid, polyacrylic acid and three
Valence chromic salts.
Optionally, the polyester film is prepared by the tape casting.
Optionally, the material of the polyester film is selected from polyethylene terephthalate, is poly- to naphthalenedicarboxylic acid second two
Alcohol ester, polybutylene terephthalate (PBT), polyethylene terephthalate -1,4 cyclohexane dimethanol ester, thermoplastic polyester
The one of which of the constituted group of elastomer.
Optionally, the polyester film and the polypropylene film are using the composite dry process aluminium foil
Layer surface.
Optionally, the thickness range of the polyester film is 10 μm~50 μm.
Optionally, the polypropylene film is three-layer co-extruded film, the thickness range of the polypropylene film is 15 μm~
80μm。
Optionally, the aluminium plastic composite packaging film is used for packaging lithium battery, wherein the polyester film is as surface layer, institute
Polypropylene film is stated as internal layer.
As described above, aluminium plastic composite packaging film of the invention, has the advantages that aluminium plastic composite packaging of the invention
Film includes aluminium foil layer, polypropylene film and polyester film, and the aluminium foil layer has the first surface and second surface being oppositely arranged,
The polypropylene film is incorporated into the first surface of the aluminium foil layer, and the polyester film is incorporated into the institute of the aluminium foil layer
State second surface.Aluminium plastic composite packaging film of the invention can be used for packing lithium ion battery, wherein the polyester film conduct
Surface layer, the aluminium foil layer is as middle layer, and the polypropylene film is as internal layer.The surface layer of aluminium plastic composite packaging film of the invention
With good electrolyte resistance corrosive nature, the security risk of lithium ion battery in use can be effectively reduced.
Detailed description of the invention
Fig. 1 is shown as the film layer structure figure of aluminium plastic composite packaging film of the invention.
Component label instructions
1 polyester film
2 second adhesive layers
3 aluminium foil layers
4 first adhesive layers
5 polypropylene films
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Please refer to Fig. 1.It should be noted that illustrating what only the invention is illustrated in a schematic way provided in the present embodiment
Basic conception, only shown in schema then with related component in the present invention rather than component count, shape when according to actual implementation
And size is drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout
Kenel may also be increasingly complex.
Embodiment one
The present invention provides a kind of aluminium plastic composite packaging film, referring to Fig. 1, being shown as the film layer of the aluminium plastic composite packaging film
Structure chart, including aluminium foil layer 3, polypropylene film 5 and polyester film 1, wherein the aluminium foil layer 3 has first be oppositely arranged
Surface and second surface, the polypropylene film 5 are incorporated into the first surface of the aluminium foil layer 3,1 knot of polyester film
Together in the second surface of the aluminium foil layer 3.
Specifically, the thickness range of the aluminium foil layer 3 is 15 μm~80 μm.In the present embodiment, the aluminium foil layer 3 selects thickness
The soft aluminium foil that degree is 40 μm, and the first surface of the aluminium foil layer 3 and the second surface of the aluminium foil layer 3 pass through
Chemical conversion Passivation Treatment is crossed.
As an example, the chemical conversion Passivation Treatment includes the following steps:
(1) inactivating treatment liquid comprising phosphoric acid, polyacrylic acid and chromic salt is provided；
(2) inactivating treatment liquid is coated on to two surfaces of the aluminium foil layer 3；
(3) aluminium foil layer 3 is dried.
In the present embodiment, the chromium adhesion amount of 3 single side of aluminium foil layer is 20mg/m after coating is dry2。
Specifically, being connected between the polypropylene film 5 and the aluminium foil layer 3 by the first adhesive layer 4, the polyester
It is connected between film layer 1 and the aluminium foil layer 3 by the second adhesive layer 2.The thickness range of first adhesive layer 4 is 1 μm
~10 μm, the thickness range of second adhesive layer 2 is 1 μm~10 μm.
As an example, the polyester film 1 is to use composite dry process 3 surface of aluminium foil layer, it is used to set
Standby is dry compound machine.In the present embodiment, the polyester film 1 and the compound selected adhesive of aluminium foil layer 3 are poly- for two-component
Ester system adhesive, matches as polyester resin: polyisocyanate: ethyl acetate=100:14:48, and coating weight is 4g/ after drying
m2。
As an example, the polypropylene film 5 is also to use composite dry process 3 surface of aluminium foil layer, institute
It is dry compound machine with equipment.In the present embodiment, the polypropylene film 5 and the compound selected adhesive of the aluminium foil layer 3
For maleic anhydride modified polyolefin adhesive, match as maleic anhydride modified polyolefin: epoxy resin: butanone: cyclohexane=
100:1.43:35.4:5.7 coating weight is 4g/m after dry2。
Specifically, the polyester film 1 is prepared by the tape casting.Cast-sheet production technology refers to resin through squeezing
Machine fusion plastification out is squeezed out by slit head die orifice, is tightly attached to melt on cooling roller, stretched, trimming is batched
Sheet material made of process.With the sheet material for processing plastic thermoforming packing articles that " the tape casting " produces claim " the tape casting " heat at
Matrix material.
Specifically, the material of the polyester film 1 is selected from polyethylene terephthalate, is poly- to naphthalenedicarboxylic acid second two
Alcohol ester, polybutylene terephthalate (PBT), polyethylene terephthalate -1,4 cyclohexane dimethanol ester, thermoplastic polyester
The one of which of the constituted group of elastomer.In the present embodiment, the main raw material(s) of the polyester film 1 includes poly- terephthaldehyde
Sour glycol ester, polyethylene terephthalate -1,4 cyclohexane dimethanol ester and thermoplastic polyester elastomer.As showing
The main raw material(s) proportion of example, the polyester film 1 is polyethylene terephthalate: polyethylene terephthalate-
1,4 cyclohexane dimethanol ester: thermoplastic polyester elastomer=60:20:20.
Specifically, the thickness range of the polyester film 1 is 10 μm~50 μm.In the present embodiment, the polyester film 1
Thickness is preferably 25 μm.
Specifically, the polypropylene film 5 is three-layer co-extruded film, the thickness range of the polypropylene film 5 is 15 μm
~80 μm.In the present embodiment, the thickness of the polypropylene film 5 is preferably 40 μm.
Aluminium plastic composite packaging film of the invention can be used for packing lithium ion battery, wherein the polyester film 1 is used as table
Layer, the aluminium foil layer 3 are used as middle layer, and the polypropylene film 5 is used as internal layer.
Embodiment two
Surface layer electrolyte resistance corrosion test, packet are carried out to aluminium plastic composite packaging film described in embodiment one in the present embodiment
Include following steps:
(1) configuration concentration is the LiPF of 1mol/L6Electrolyte, wherein solvent burden ratio is dimethyl carbonate: ethyl carbonate:
Diethyl carbonate=1:1:1 (volume ratio).
(2) the above-mentioned electrolyte of 3-5 drop is dripped on aluminium plastic composite packaging film outer layer (polyester film) surface, it is small is placed at room temperature for 24
When.
(3) electrolyte of aluminium plastic composite packaging film superficies is wiped.
(4) aluminium plastic composite packaging film surface is observed.
It observes the results show that aluminium plastic composite packaging film is there is no dissolving and corroding, also without color change.Illustrate to implement
Aluminium plastic composite packaging film surface layer described in example one has electrolyte resistance performance.
In conclusion aluminium plastic composite packaging film of the invention includes aluminium foil layer, polypropylene film and polyester film, the aluminium
Layers of foil has the first surface and second surface being oppositely arranged, and the polypropylene film is incorporated into described the first of the aluminium foil layer
Surface, the polyester film are incorporated into the second surface of the aluminium foil layer.Aluminium plastic composite packaging film of the invention can be used
In packaging lithium ion battery, wherein the polyester film is as surface layer, and the aluminium foil layer is as middle layer, the polypropylene screen
Layer is used as internal layer.The surface layer of aluminium plastic composite packaging film of the invention has good electrolyte resistance corrosive nature, can effectively drop
The security risk of low lithium ion battery in use.So the present invention effectively overcomes various shortcoming in the prior art
And has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (12)
1. a kind of aluminium plastic composite packaging film characterized by comprising
Aluminium foil layer has the first surface and second surface being oppositely arranged；
Polypropylene film is incorporated into the first surface of the aluminium foil layer；
Polyester film is incorporated into the second surface of the aluminium foil layer.
2. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the polypropylene film and the aluminium foil layer
Between by the first adhesive layer connect, between the polyester film and the aluminium foil layer by the second adhesive layer connect.
3. aluminium plastic composite packaging film according to claim 2, it is characterised in that: the thickness range of first adhesive layer
It is 1 μm~10 μm, the thickness range of second adhesive layer is 1 μm~10 μm.
4. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the thickness range of the aluminium foil layer is 15 μm
~80 μm.
5. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the first surface of the aluminium foil layer and
The second surface of the aluminium foil layer have passed through chemical conversion Passivation Treatment.
6. aluminium plastic composite packaging film according to claim 5, it is characterised in that: the chemical conversion Passivation Treatment is adopted
Inactivating treatment liquid includes phosphoric acid, polyacrylic acid and chromic salt.
7. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the polyester film is by being cast legal system
It is standby to obtain.
8. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the material of the polyester film is selected from poly-
Ethylene glycol terephthalate, polyethylene naphthalate, polybutylene terephthalate (PBT), poly terephthalic acid second two
Alcohol ester -1,4 cyclohexane dimethanol ester, the constituted group of thermoplastic polyester elastomer one of which.
9. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the polyester film and the polypropylene screen
Layer is using the composite dry process aluminium foil layer surface.
10. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the thickness range of the polyester film is
10 μm~50 μm.
11. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the polypropylene film is three-layer co-extruded
Film, the thickness range of the polypropylene film are 15 μm~80 μm.
12. aluminium plastic composite packaging film according to claim 1, it is characterised in that: the aluminium plastic composite packaging film is for wrapping
Fill lithium battery, wherein the polyester film is as surface layer, and the polypropylene film is as internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958407.3A CN109483974A (en) | 2018-08-22 | 2018-08-22 | A kind of aluminium plastic composite packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958407.3A CN109483974A (en) | 2018-08-22 | 2018-08-22 | A kind of aluminium plastic composite packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109483974A true CN109483974A (en) | 2019-03-19 |
Family
ID=65690345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958407.3A Pending CN109483974A (en) | 2018-08-22 | 2018-08-22 | A kind of aluminium plastic composite packaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109483974A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549258A (en) * | 1978-10-02 | 1980-04-09 | Sekisui Koji Kk | Reinforced synthetic resin board |
| US4410768A (en) * | 1980-07-23 | 1983-10-18 | Nippon Gakki Seizo Kabushiki Kaisha | Electro-acoustic transducer |
| JPS5929129A (en) * | 1982-08-07 | 1984-02-16 | Showa Denko Kk | Preparation of laminate |
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