CN108688259A - A kind of novel aluminum-plastic composite membrane and preparation method thereof - Google Patents
A kind of novel aluminum-plastic composite membrane and preparation method thereof Download PDFInfo
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- CN108688259A CN108688259A CN201810371023.1A CN201810371023A CN108688259A CN 108688259 A CN108688259 A CN 108688259A CN 201810371023 A CN201810371023 A CN 201810371023A CN 108688259 A CN108688259 A CN 108688259A
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B32B15/088—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 polyamides
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin 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
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer 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
- 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
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- 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 of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/003—Layered products comprising a metal layer
-
- 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
-
- 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
The present invention proposes a kind of novel aluminum-plastic composite membrane, the processing of multilayer is done to the barrier layer of internal layer hot sealing layer, the defect of " flake " or " fisheye " on each layer is staggered, so that hydrofluoric acid or electrolyte can not penetrate the barrier layer in hot sealing layer, it is chemically treated without any surface to aluminium foil, eliminates chemical treatment layer I and chemical treatment layer II;The novel aluminum-plastic composite membrane of the present invention no longer uses adhesive-layer simultaneously, is directly replaced with hot melt adhesive, shortens the production cycle, reduces environmental pollution.
Description
Technical field
The present invention relates to the soft package technologies of lithium ion battery, more specifically, being related to a kind of novel aluminum-plastic composite membrane
And preparation method thereof.
Background technology
It is presently used for the aluminum-plastic composite membrane of lithium ion battery encapsulation technology, in order to reach preferable performance, is had good
Scouring depth performance and anti-short-circuit capability, are commonly made to the structure of the patent of number of patent application CN201310453759.0, specifically, aluminium
Modeling composite membrane structure be:Outer protective layer, secondly adhesive layer, chemical treatment layer I, aluminium foil layer, chemical treatment layer II, hot melt adhesive
Layer, last internal layer hot sealing layer.
However, being had the following defects using this structure as above:
1, it carries out chemical treatment in aluminium foil layer surface and forms chemical treatment layer I and chemical treatment layer II, comparatively technique
It is more complicated, and there may be heavy metal pollution;But if do not handled aluminium foil layer, especially if there is no
Chemical treatment layer II then probably occurs hydrofluoric acid or electrolyte and is penetrated from hot sealing layer to corrosive aluminum foil, final to generate
Short circuit phenomenon.
2, outer protective layer and chemical treatment layer I are glued together with adhesive-layer, the process is more complicated, and takes cycle phase
It is specific to need, on the surface of chemical treatment layer I, to be coated with liquid glue, outer protective layer is then covered in liquid to longer
On glue, then cure always in the environment of 60 DEG C 6 days;
3, as a result of liquid glue, all contain organic solvent in existing liquid glue, thus its using and consolidate always
During change, a large amount of VOC can be released, pollutes environment.
Invention content
In order to solve problem above, the present invention proposes a kind of novel aluminum-plastic composite membrane and preparation method thereof.The present invention's
Novel aluminum-plastic composite membrane does the barrier layer of internal layer hot sealing layer the processing of multilayer so that " flake " or " brilliant on each layer
The defect of point " can be staggered, so that hydrofluoric acid or electrolyte can not penetrate the barrier layer in hot sealing layer, without to aluminium
Any surface of foil is chemically treated, and chemical treatment layer I and chemical treatment layer II are eliminated;The novel aluminium of the present invention simultaneously
It moulds composite membrane and no longer uses adhesive-layer, directly replaced with hot melt adhesive, shorten the production cycle, reduce environmental pollution.In addition, this
Invention provides the preparation method of the above novel aluminum-plastic composite membrane.
A kind of novel aluminum-plastic composite membrane, it is characterised in that:It include the exterior cover sheets stacked gradually, hot melt adhesive layer I,
Middle part aluminium foil layer, hot melt adhesive layer II and inside heat seal layer, wherein inside heat seal layer are the acrylic resin of two kinds of different melting points
Coextruded layer, and close to lithium ion battery side be single layer acrylic resin membrane structure, far from lithium ion battery one
Side is the acrylic resin membrane structure of multilayer.
Further, the exterior cover sheets are nylon layer or layer of polyethylene terephthalate, or poly- to benzene two
The multilayered structure that two ester layer of formic acid second is combined with nylon layer by hot melt adhesive layer.
Further, if exterior cover sheets are nylon layer, 15~30um of thickness of nylon layer.If exterior cover sheets are poly-
When ethylene terephthalate, the thickness of polyethylene terephthalate is 15~30um.If exterior cover sheets are poly- to benzene two
When the multilayered structure that two ester layer of formic acid second is combined with nylon layer by hot melt adhesive, the thickness of polyethylene terephthalate layer is
The thickness of 10~30um, nylon layer are 10~30um, 3~15um of hot melt adhesive layer, and more preferred hot melt adhesive layer is 3~15um.
Further, the hot melt adhesive layer I and hot melt adhesive layer II is based on maleic anhydride modified acrylic resins
Hot melt adhesive.
Further, the thickness of the hot melt adhesive layer I and hot melt adhesive layer II is respectively 3um~15um, more preferably,
The thickness of hot melt adhesive layer I and hot melt adhesive layer II are respectively 3um~5um.
Further, 10~60um of thickness of the aluminium foil layer.
Further, in the inside heat seal layer in two kinds of different melting points acrylic resin, including copolymerization poly- third
Olefine resin and homopolypropylene resin.
Further, the thickness close to the acrylic resin film of the single layer of the side of lithium ion battery is 5~30um;Far
The number of plies of the acrylic resin film of the multilayer of side from lithium ion battery is 2~12 layers, and each layer of thickness is 10um
The overall thickness of~30um, the polypropylene film of the multilayer of the side far from lithium ion battery are 20um~80um.
Compared with prior art, the present invention due to the polypropylene tree that the side far from lithium ion battery in hot sealing layer is multilayer
Membrane of lipoprotein structure, this structure so that, even if each layer polypropylene resin film existing defects, there are a certain number of " fishes on surface
Eye " or " fisheye " so that uniform entirety can not be formed with periphery at " flake " or " fisheye ", when electrolyte or hydrofluoric acid permeate
To the acrylic resin film of first layer " flake " or " fisheye " when, " flake " on the acrylic resin film of the second layer or
The probability that " fisheye " is overlapped with " flake " or " fisheye " on first layer can decline at power function, therefore when electrolyte or hydrofluoric acid are worn
After first layer, and it is bound to be perforated through the second layer, using the acrylic resin film of multilayer, the hydrofluoric acid for being just or electrolysis
The probability that liquid penetrates into aluminium foil surface is greatly reduced.Therefore the structure of novel aluminum-plastic composite membrane using the present invention, it can save
Chemical treatment to aluminium foil surface.And the present invention novel aluminum-plastic composite membrane no longer use liquid glue connection aluminium foil layer with
Protective layer, but directly aluminium foil layer and protective layer are bonded using hot melt adhesive so that the production cycle shortens, section dropped at
This, provides yields.
The present invention provides the preparation method of the above aluminum-plastic composite membrane, and there are mainly two types of preparation methods:Include the following steps:
Preparation method one:Hot melt adhesive layer II and inside heat seal layer, wherein co-extrusion machine are produced by the way of three-layer co-extruded
Contain distributor in middle layer in device, the result finally squeezed out is that middle layer is multi-layer polypropylene resin film, both sides difference
For maleic anhydride modified acrylic resin film and single-layer polypropylene resin film;Then, by the extruded product in previous step
Maleic anhydride modified acrylic resin film side directly fitted with aluminium foil, after cooling, then by the other side of aluminium foil
High temperature squeezes out maleic anhydride modified acrylic resin, and is bonded protective layer simultaneously.
Preparation method two:Inside heat seal layer is produced by the way of double-layer coextrusion, is contained in one layer in machine wherein squeezing out
Have distributor, the result finally squeezed out be single-layer polypropylene resin film on one side, in addition on one side be multi-layer polypropylene resin it is thin
Film;Then, after the extrudate in previous step being prolonged pressure drop temperature, in the surface high-temp basis maleic acid of multi-layer polypropylene resin film
The acrylic resin that calcium is modified, while it being bonded aluminium foil, squeeze out maleic anhydride after cooling, then by the other side high temperature of aluminium foil
Modified acrylic resin, and it is bonded protective layer simultaneously.
Description of the drawings:
Specific implementation mode is described further below in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural schematic diagram of the aluminum-plastic composite membrane of specific implementation mode 1.
Fig. 2 is the structural schematic diagram of the aluminum-plastic composite membrane of specific implementation mode 2.
Fig. 3 is the structural schematic diagram of the aluminum-plastic composite membrane of specific implementation mode 3.
Main components explanation:
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
Case 1 is embodied:
As shown in Figure 1, the structural schematic diagram of the aluminum-plastic composite membrane for specific implementation mode 1, it is characterised in that:It include according to
Exterior cover sheets (1), hot melt adhesive layer I (2), middle part aluminium foil layer (3), hot melt adhesive layer II (4) and the inside heat seal layer of secondary stacking
(5), wherein inside heat seal layer (5) be two kinds of different melting points acrylic resin coextruded layer, and close to lithium ion battery one
Side is the acrylic resin membrane structure (52) of single layer, and the side far from lithium ion battery is the acrylic resin film knot of multilayer
Structure (51).
The exterior cover sheets (1) are nylon layer (11), thickness 25um.Hot melt adhesive layer I (2) and hot melt adhesive layer II
(4) it is hot melt adhesive based on maleic anhydride modified acrylic resins, the thickness of hot melt adhesive layer I (2) and hot melt adhesive layer II (4) divide
It Wei not 4um.The thickness of the aluminium foil layer is 25um.The polypropylene of two kinds of different melting points in the inside heat seal layer (5)
Resin, is homopolypropylene resin, and the thickness close to the acrylic resin film (52) of the single layer of the side of lithium ion battery is
6um;The number of plies of the acrylic resin film (51) of the multilayer of side far from lithium ion battery is 2 layers, and each layer of thickness
For 20um.
The preparation method of aluminum-plastic composite membrane in specific implementation case 1 is:Hot melt adhesive is produced by the way of three-layer co-extruded
Layer II (4) and inside heat seal layer (5), wherein contain distributor, the result finally squeezed out is in the middle layer in co-extrusion machine
Middle layer is two layers of polypropylene resin film (51), and both sides are respectively maleic anhydride modified acrylic resin film (4) and single
Layer polypropylene resin film (52);Then, by the maleic anhydride modified polypropylene of the extruded product (4+51+52) in previous step
Resin film side (4) is directly fitted with aluminium foil (3), and maleic acid is squeezed out after cooling, then by the other side high temperature of aluminium foil (3)
The acrylic resin (2) of anhydride modification, and it is bonded protective layer (11) simultaneously.
Case 2 is embodied:
As shown in Fig. 2, the structural schematic diagram of the aluminum-plastic composite membrane for specific implementation mode 2, it is characterised in that:It include according to
Exterior cover sheets (1), hot melt adhesive layer I (2), middle part aluminium foil layer (3), hot melt adhesive layer II (4) and the inside heat seal layer of secondary stacking
(5), wherein inside heat seal layer (5) be two kinds of different melting points acrylic resin coextruded layer, and close to lithium ion battery one
Side is the acrylic resin membrane structure (52) of single layer, and the side far from lithium ion battery is the acrylic resin film knot of multilayer
Structure (51).
The exterior cover sheets (1) are the polyethylene terephthalate (13), hot melt adhesive (12) and Buddhist nun stacked gradually
Imperial layer (11), wherein the thickness of polyethylene terephthalate (13) is 19um, and the thickness of hot melt adhesive (12) is 3.2um, nylon
The thickness of layer (11) is 16um.Hot melt adhesive (12), hot melt adhesive layer I (2) and hot melt adhesive layer II (4) are maleic anhydride modified polypropylene
The thickness of hot melt adhesive based on resin, hot melt adhesive layer I (2) and hot melt adhesive layer II (4) are respectively 4um.The aluminium foil layer
Thickness is 23um.The acrylic resin of two kinds of different melting points in the inside heat seal layer (5) is acrylic resin copolymer,
Thickness close to the acrylic resin film (52) of the single layer of the side of lithium ion battery is 10um;One far from lithium ion battery
The number of plies of the acrylic resin film (51) of the multilayer of side is 3 layers, and each layer of thickness is 12um.
The preparation method of aluminum-plastic composite membrane in specific implementation case 2 is:Hot melt adhesive is produced by the way of three-layer co-extruded
Layer II (4) and inside heat seal layer (5), wherein contain distributor, the result finally squeezed out is in the middle layer in co-extrusion machine
Middle layer is three-layer polypropylene resin film (51), and both sides are respectively maleic anhydride modified acrylic resin film (4) and single
Layer polypropylene resin film (52);Then, by the maleic anhydride modified polypropylene of the extruded product (4+51+52) in previous step
Resin film side (4) is directly fitted with aluminium foil (3), and maleic acid is squeezed out after cooling, then by the other side high temperature of aluminium foil (3)
The acrylic resin (2) of anhydride modification, and it is bonded protective layer (11) simultaneously.Wherein protective layer (11) is needed by pretreatment, also
It is the face extruding and hot melting glue (12) in polyethylene terephthalate (13), then nylon layer (11) fitting is got on.
Case 3 is embodied:
As shown in figure 3, the structural schematic diagram of the aluminum-plastic composite membrane for specific implementation mode 3, it is characterised in that:It include according to
Exterior cover sheets (1), hot melt adhesive layer I (2), middle part aluminium foil layer (3), hot melt adhesive layer II (4) and the inside heat seal layer of secondary stacking
(5), wherein inside heat seal layer (5) be two kinds of different melting points acrylic resin coextruded layer, and close to lithium ion battery one
Side is the acrylic resin membrane structure (52) of single layer, and the side far from lithium ion battery is the acrylic resin film knot of multilayer
Structure (51).
The exterior cover sheets (1) are nylon layer (11), thickness 28um.Hot melt adhesive layer I (2) and hot melt adhesive layer II
(4) it is hot melt adhesive based on maleic anhydride modified acrylic resins, the thickness of hot melt adhesive layer I (2) and hot melt adhesive layer II (4) divide
It Wei not 4.9um.The thickness of the aluminium foil layer is 28um.Poly- third of two kinds of different melting points in the inside heat seal layer (5)
Olefine resin is homopolypropylene resin, close to the thickness of the acrylic resin film (52) of the single layer of the side of lithium ion battery
For 16um;The number of plies of the acrylic resin film (51) of the multilayer of side far from lithium ion battery is 8 layers, and each layer of thickness
Degree is 11um.
The preparation method of aluminum-plastic composite membrane in specific implementation case 1 is:Hot melt adhesive is produced by the way of three-layer co-extruded
Layer II (4) and inside heat seal layer (5), wherein contain distributor, the result finally squeezed out is in the middle layer in co-extrusion machine
Middle layer is eight layer polypropylene resin films (51), and both sides are respectively maleic anhydride modified acrylic resin film (4) and single
Layer polypropylene resin film (52);Then, by the maleic anhydride modified polypropylene of the extruded product (4+51+52) in previous step
Resin film side (4) is directly fitted with aluminium foil (3), and maleic acid is squeezed out after cooling, then by the other side high temperature of aluminium foil (3)
The acrylic resin (2) of anhydride modification, and it is bonded protective layer (11) simultaneously.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of novel aluminum-plastic composite membrane, it is characterised in that:It include the exterior cover sheets stacked gradually, hot melt adhesive layer I, in
Portion's aluminium foil layer, hot melt adhesive layer II and inside heat seal layer, wherein inside heat seal layer are the acrylic resin of two kinds of different melting points
Coextruded layer, and be the acrylic resin membrane structure of single layer, the side far from lithium ion battery close to the side of lithium ion battery
For the acrylic resin membrane structure of multilayer.
2. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:The exterior cover sheets are nylon layer,
Or layer of polyethylene terephthalate or layer of polyethylene terephthalate are combined with nylon layer by hot melt adhesive layer
Multilayered structure.
3. novel aluminum-plastic composite membrane as claimed in claim 2, it is characterised in that:If exterior cover sheets are nylon layer, Buddhist nun
15~30um of thickness of imperial layer;If exterior cover sheets are polyethylene terephthalate, the thickness of polyethylene terephthalate
Degree is 15~30um;If exterior cover sheets are combined with nylon layer by hot melt adhesive more for layer of polyethylene terephthalate
When layer structure, the thickness of polyethylene terephthalate layer is 10~30um, and the thickness of nylon layer is 10~30um, hot melt adhesive layer 3
~15um.
4. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:The hot melt adhesive layer I and hot melt adhesive layer
II is the hot melt adhesive based on maleic anhydride modified acrylic resins.
5. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:The hot melt adhesive layer I and hot melt adhesive layer
The thickness of II is respectively 3um~5um.
6. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:10~60um of thickness of the aluminium foil layer.
7. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:Two kinds in the inside heat seal layer
The acrylic resin of different melting points, including acrylic resin copolymer and homopolypropylene resin.
8. novel aluminum-plastic composite membrane as described in claim 1, it is characterised in that:Single layer close to the side of lithium ion battery
Acrylic resin film thickness be 5~30um;The acrylic resin film of the multilayer of side far from lithium ion battery
The number of plies is 2~12 layers, and each layer of thickness is 10um~30um, and the polypropylene of the multilayer of the side far from lithium ion battery is thin
The overall thickness of film is 20um~80um.
9. the preparation method of the aluminum-plastic composite membrane as described in any one of claim 1~8, includes the following steps:Using three
The mode of layer co-extrusion produces hot melt adhesive layer II and inside heat seal layer, wherein contains distributor in the middle layer in co-extrusion machine,
It is multi-layer polypropylene resin film that the result finally squeezed out, which is middle layer, and both sides are respectively maleic anhydride modified acrylic resin
Film and single-layer polypropylene resin film;Then, by the maleic anhydride modified acrylic resin of the extruded product in previous step
Film side is directly fitted with aluminium foil, and maleic anhydride modified poly- third is squeezed out after cooling, then by the other side high temperature of aluminium foil
Olefine resin, and it is bonded protective layer simultaneously.
10. the preparation method of the aluminum-plastic composite membrane as described in any one of claim 1~8, includes the following steps:Using double
The mode of layer co-extrusion produces inside heat seal layer, contains distributor wherein squeezing out in one layer in machine, the result finally squeezed out is
It is single-layer polypropylene resin film on one side, is in addition multi-layer polypropylene resin film on one side;Then, by the extrudate in previous step
After prolonging pressure drop temperature, in the acrylic resin that the surface high-temp basis calcium maleate of multi-layer polypropylene resin film is modified, paste simultaneously
Aluminium foil is closed, squeezes out maleic anhydride modified acrylic resin after cooling, then by the other side high temperature of aluminium foil, and paste simultaneously
Close protective layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810371023.1A CN108688259A (en) | 2018-04-24 | 2018-04-24 | A kind of novel aluminum-plastic composite membrane and preparation method thereof |
| PCT/CN2019/083962 WO2019206153A1 (en) | 2018-04-24 | 2019-04-23 | Novel aluminum plastic composite film and preparation method therefor |
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| CN201810371023.1A CN108688259A (en) | 2018-04-24 | 2018-04-24 | A kind of novel aluminum-plastic composite membrane and preparation method thereof |
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| WO (1) | WO2019206153A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315809A (en) * | 2019-07-18 | 2019-10-11 | 江阴长庚高科技材料有限公司 | A kind of corrosion-resistant polyester composite sheet and corrosion-resistant aluminum-plastic composite membrane |
| WO2019206153A1 (en) * | 2018-04-24 | 2019-10-31 | 苏州融达信新材料科技有限公司 | Novel aluminum plastic composite film and preparation method therefor |
| WO2022032697A1 (en) * | 2020-08-13 | 2022-02-17 | 苏州融达信新材料科技有限公司 | Novel safety aluminum-plastic film |
| WO2022032698A1 (en) * | 2020-08-13 | 2022-02-17 | 苏州融达信新材料科技有限公司 | Aluminium-plastic composite film with high water-blocking performance and preparation method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465108A (en) * | 2001-06-20 | 2003-12-31 | 大日本印刷株式会社 | Battery use packing material |
| CN103496203A (en) * | 2013-09-29 | 2014-01-08 | 江苏中金玛泰医药包装有限公司 | Lithium ion battery aluminum-plastic film prepared by utilizing hot melt glue coating process |
| CN205177889U (en) * | 2015-02-13 | 2016-04-20 | 深圳市虎柏新能源科技有限公司 | Improved generation lithium cell composite packaging membrane |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205542910U (en) * | 2015-12-12 | 2016-08-31 | 苏州锂盾储能材料技术有限公司 | High compound plastic -aluminum membrane of polymer lithium ion battery |
| CN206059450U (en) * | 2016-08-30 | 2017-03-29 | 上海紫江新材料科技有限公司 | With lithium battery flexible packaging film made by heat pressing process |
| CN108688259A (en) * | 2018-04-24 | 2018-10-23 | 苏州融达信新材料科技有限公司 | A kind of novel aluminum-plastic composite membrane and preparation method thereof |
-
2018
- 2018-04-24 CN CN201810371023.1A patent/CN108688259A/en active Pending
-
2019
- 2019-04-23 WO PCT/CN2019/083962 patent/WO2019206153A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465108A (en) * | 2001-06-20 | 2003-12-31 | 大日本印刷株式会社 | Battery use packing material |
| CN103496203A (en) * | 2013-09-29 | 2014-01-08 | 江苏中金玛泰医药包装有限公司 | Lithium ion battery aluminum-plastic film prepared by utilizing hot melt glue coating process |
| CN205177889U (en) * | 2015-02-13 | 2016-04-20 | 深圳市虎柏新能源科技有限公司 | Improved generation lithium cell composite packaging membrane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019206153A1 (en) * | 2018-04-24 | 2019-10-31 | 苏州融达信新材料科技有限公司 | Novel aluminum plastic composite film and preparation method therefor |
| CN110315809A (en) * | 2019-07-18 | 2019-10-11 | 江阴长庚高科技材料有限公司 | A kind of corrosion-resistant polyester composite sheet and corrosion-resistant aluminum-plastic composite membrane |
| WO2022032697A1 (en) * | 2020-08-13 | 2022-02-17 | 苏州融达信新材料科技有限公司 | Novel safety aluminum-plastic film |
| WO2022032698A1 (en) * | 2020-08-13 | 2022-02-17 | 苏州融达信新材料科技有限公司 | Aluminium-plastic composite film with high water-blocking performance and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019206153A1 (en) | 2019-10-31 |
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