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CN106129279B - Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof - Google Patents

Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof Download PDF

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Publication number
CN106129279B
CN106129279B CN201610695118.XA CN201610695118A CN106129279B CN 106129279 B CN106129279 B CN 106129279B CN 201610695118 A CN201610695118 A CN 201610695118A CN 106129279 B CN106129279 B CN 106129279B
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film
layer
mass parts
temperature
ion battery
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CN106129279A (en
Inventor
丘晓琳
吴宇涛
唐有凯
陈春阳
陈臻杰
富坚定
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Jiangsu Leater Green Packaging Corp ltd
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Jiangsu Grain New Material Co Ltd
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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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention discloses a kind of polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof, is with the polymer Li-ion battery flexible package internal layer co-extrusion film of electrolyte solution contacts and preparation method thereof specifically.Its main feature is that being combined successively by polarity composite layer, adhesive layer, low pole group interlayer, rigid support layer, toughness supporting layer and hot sealing layer.Using this internal layer co-extrusion film, product quality can be improved, avoid environmental pollution.

Description

Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof
Technical field
The present invention relates to lithium ion battery flexible packing material and its production methods.Specifically, it is and electrolyte solution contacts Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof.
Background technology
It is both known about in lithium ion battery production industry, the inner layer film of polymer Li-ion battery flexible package at present is mostly adopted Use polyamide as group interlayer, due to being used as a group interlayer using polyamide, and polyamide is polar macromolecule material, is had outstanding Rigidity, but toughness is insufficient.So that manufactured internal layer membrane rigidity is had a surplus, toughness is insufficient.Therefore, it was produced in folding, punching press etc. Cheng Zhong easily causes flexible package tearing so that product qualification rate is not high.
Lithium battery flexible packaging film prepared by a kind of Chinese the tape casting of No. 201320483024.8 patent disclosures.This flexible package The heat-insulated sealing of group used in film is the mixture that cyclic olefin polymer and polyethylene form, polyethylene film barrier property therein It is poor.And the auxiliary agent polarity used is relatively strong easy and is electrolysed qualitative response so that when electrolyte contacts are to group interlayer surface, can send out Raw dissolving and corrosion so that product quality is low.
Chinese No. 201310596489.8 patent specifications disclose a kind of lithium battery flexible packaging aluminum plastic film and making side Method.Heat-sealing group interlayer therein is cast polypropylene film, and this cast polypropylene is thin to pass through adhesive between filter aluminium foil surface It is combined with each other.Polypropylene film therein is nonpolar film, and the composite performance between aluminium foil is poor so that heat-sealing group every Easily there is lamination between layer and aluminium foil.Once there is lamination between heat-sealing group interlayer and aluminium foil, leakage situation will be caused Occur.Therefore, second-rate using the flexible package of this heat-sealing group interlayer.
In addition, so far, it has been disclosed that the method for preparing poly-lithium battery flexible package inner layer film be mostly using dry Formula combination process needs in this dry-lamination process using phenolic resin, epoxy resin, polyurethane adhesive equal solvent shape solidification glue, And all contain the harmful substances such as toluene, ethyl acetate in solvent type solidification glue, in production process pollution can be brought to environment.
Invention content
The problem to be solved in the present invention is to provide a kind of polymer Li-ion battery flexible package internal layer co-extrusion film.Using this Kind internal layer co-extrusion film, can be improved product quality, avoids environmental pollution.
The invention solves another problem to be to provide a kind of polymer Li-ion battery flexible package internal layer for preparing total The method of extruded film.
The invention solves the above problem realized by following technical scheme：
The polymer Li-ion battery flexible package of the present invention includes polarity composite layer, gluing successively with internal layer co-extrusion film feature Layer, low pole group interlayer, rigid support layer, toughness supporting layer and hot sealing layer.
The polarity composite layer contains the raw material of following mass parts：
85 ~ 95 mass parts of polyamide；
Anhydride grafting modified 5 ~ 10 mass parts of polyolefin elastomer of carboxylic acid group.
The adhesive layer is acid modified polyolefin viscose.
The low pole group interlayer contains the raw material of following mass parts：
80 ~ 90 mass parts of atactic copolymerized polypropene；
1 ~ 3 mass parts of polyvinyl chloride；
15 ~ 18 mass parts of polyolefin elastomer.
The rigid support layer contains the raw material of following mass parts：
There are rule 80 ~ 90 mass parts of homopolypropylene；
0 ~ 0.3 mass parts of nano silicon dioxide；
10 ~ 20 mass parts of polyolefin elastomer；
0.1 ~ 1 mass parts of dehydroabietic acid.
The toughness supporting layer contains the raw material of following mass parts：
80 ~ 95 mass parts of linear low density polyethylene；
0 ~ 0.3 mass parts of dehydroabietic acid；
0.5 ~ 5 mass parts of high density polyethylene (HDPE).
The hot sealing layer contains the raw material of following mass parts：
80 ~ 90 mass parts of atactic copolymerized polypropene；
0 ~ 0.3 mass parts of nano silicon dioxide；
0.1 ~ 5 mass parts of polyolefin elastomer.
The thickness of the polarity composite layer is 10 ~ 12 microns, the thickness of adhesive layer is 1 ~ 3 micron, low pole group interlayer Thickness is 6 ~ 8 microns, the thickness of rigid support layer is 18 ~ 22 microns, the thickness of toughness supporting layer is 12 ~ 15 microns, hot sealing layer Thickness be 5 ~ 8 microns.
The characteristics of preparing the polymer Li-ion battery flexible package method of internal layer co-extrusion film is successively including following Step：
First prepare polarity composite layer material
By in polyamide and the anhydride grafting modified polyolefin elastomer input high-speed stirred pot of carboxylic acid group, it is uniformly mixed, obtains To the first mixture；
First mixture is put into double screw extruder, in 245 ~ 265 DEG C of runner temperature and 245 ~ 255 DEG C of film mouth temperature The first film is extruded under degree；
First film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 155 DEG C through the first cooled film, toast 60 minutes, obtain polarity composite layer object Material；
Low pole group interlayer material is prepared again
Atactic copolymerized polypropene, polyvinyl chloride and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains First mixture；
First mixture is put into double screw extruder, in 215 ~ 225 DEG C of runner temperature and 205 ~ 215 DEG C of film mouth temperature The second film is extruded under degree；
Second film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through the second cooled film, toast 60 minutes, obtain low pole group interlayer Material；
Later, rigid support layer material is prepared
To have in rule homopolypropylene, nano silicon dioxide, polyolefin elastomer and dehydroabietic acid input high-speed stirred pot, It is uniformly mixed, obtains third mixture；
Third mixture is put into double screw extruder, in 215 ~ 225 DEG C of runner temperature and 205 ~ 215 DEG C of film mouth temperature It is extruded into tertiary membrane under degree；
Tertiary membrane is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through cooled tertiary membrane, toast 60 minutes, obtain rigid support layer object Material；
Later, toughness supporting layer material is prepared
Linear low density polyethylene, dehydroabietic acid and high density polyethylene (HDPE) are put into high-speed stirred pot, is uniformly mixed, obtains To the 4th mixture；
4th mixture is put into double screw extruder, at a temperature of 175-185 DEG C of runner temperature and 170 DEG C of film mouth It is extruded into the 4th film；
4th film is rapidly cooled to room temperature；
, in 120 DEG C of baking oven, to toast 25 ~ 35 minutes, toughness support will be obtained through cooled the 4th film input temperature Layer material；
Later, hot sealing layer material is prepared
Atactic copolymerized polypropene, nano silicon dioxide and polyolefin elastomer are put into high-speed stirred pot, are uniformly mixed, Obtain the 5th mixture；
5th mixture is put into double screw extruder, in 205 ~ 215 DEG C of runner temperature and 195 ~ 205 DEG C of film mouth temperature The 5th film is extruded under degree；
5th film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through the 5th cooled film, toast 60 minutes, obtain hot sealing layer material；
Later, the first semi-finished product film is prepared
The screw extruder for being 245 ~ 255 DEG C by polarity composite layer material input runner temperature, is cast into the first semi-finished product Film；
Later, the second semi-finished product film is prepared
Low pole group interlayer material, bar rigid support layer material, toughness supporting layer raw material and hot sealing layer material are distinguished It is 205 ~ 215 DEG C, 215 ~ 225 DEG C, 175 ~ 185 DEG C, 205 ~ 215 DEG C to put into runner temperature, and film mouth temperature is four of 215 DEG C While screw extruder is extruded into four tunics, then with curtain coating co-extrusion machine by four tunics in stack shape be cast co-extrusion at the second semi-finished product Film；
Followed by, it carries out compound
Adhesive layer is coated on the surface of the second semi-finished product film, and the first semi-finished product film is compounded in adhesive layer, obtains half Final polymer lithium ion battery flexible package internal layer co-extrusion film；
Finally, high-voltage corona processing is carried out with internal layer co-extrusion film to the flexible package of semi-manufactured polymer lithium ion battery, makes shape Polarity surface obtains polymer Li-ion battery flexible package internal layer co-extrusion film.
Said program is taken, is had the following advantages：
Since the present invention contains rigid support layer and flexible support layers, ensuring that the present invention is same with good mechanical strength When, flexibility is improved, therefore, in the production processes such as folding, punching press, the tearing of flexible package is avoided, to greatly improve The qualification rate of product.
Again since the adhesive layer that uses of the present invention is for acid modified polyolefin viscose, this acid modified polyolefin viscose with compared with Good polarity and nonpolar stickiness, can bond together polarity composite layer and low pole group interlayer well.Make heat-sealing group Do not occur lamination between interlayer and aluminium foil, happened so as to avoid leakage, improves product quality.And this gluing Layer has acid-proof alkaline, can avoid influence of the electrolyte to interlayer composite performance.In this way, also can further improve product matter Amount.
Due to using coextrusion casting technique, without the use of phenolic resin, epoxy resin, the solidification of polyurethane adhesive equal solvent shape Glue, the pollution that environment is brought so as to avoid harmful substances such as toluene, ethyl acetate in solvent type solidification glue.
Description of the drawings
Fig. 1 is the polymer Li-ion battery flexible package internal layer co-extrusion membrane structure diagram of the present invention.
Specific implementation mode
Below in conjunction with drawings and examples, invention is further described in detail：
Embodiment one
As shown in Figure 1, the polymer Li-ion battery flexible package internal layer co-extrusion film of the present invention includes successively from outside to inside Polarity composite layer, adhesive layer, low pole group interlayer, rigid support layer, toughness supporting layer and hot sealing layer.Wherein：
The polarity composite layer contains the anhydride grafting modified polyolefin of carboxylic acid group of the polyamide and 8 mass parts of 90 mass parts Elastomer；
The adhesive layer is acid modified polyolefin viscose；
The low pole group interlayer contains the atactic copolymerized polypropene of 80 mass parts, the polyvinyl chloride of 1 mass parts, 15 mass The polyolefin elastomer of part；
The rigid support layer contain 80 mass parts have rule homopolypropylene, 10 mass parts polyolefin elastomer and The dehydroabietic acid of 0.1 mass parts；
The toughness supporting layer contains the high-density polyethylene of the linear low density polyethylene and 0.5 mass parts of 80 mass parts Alkene；
The hot sealing layer contains the polyolefin elastomer of the atactic copolymerized polypropene and 0.1 mass parts of 80 mass parts.
The thickness of wherein polarity composite layer is 10 microns, the thickness of adhesive layer is 1 micron, the thickness of low pole group interlayer is 6 microns, the thickness of rigid support layer be 18 microns, the thickness of toughness supporting layer is 12 microns, the thickness of hot sealing layer is 5 microns.
The method for preparing the polymer Li-ion battery flexible package internal layer co-extrusion film includes the following steps successively：
（1）Prepare polarity composite layer material
First by polyamide and the anhydride grafting modified polyolefin elastomer input high-speed stirred pot of carboxylic acid group, it is uniformly mixed, Obtain the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 245 DEG C of runner temperature and 245 DEG C of film mouth The first film is made；
Later, the first film is rapidly cooled to room temperature using tap water at normal temperature；
Later, in 155 DEG C of baking oven, to toast 60 minutes, it is multiple that polarity will be obtained through cooled the first film input temperature Close layer material；
（2）Prepare low pole group interlayer material
First atactic copolymerized polypropene, polyvinyl chloride and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains To the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 215 DEG C of runner temperature and 205 DEG C of film mouth The second film is made；
Later, the second film is rapidly cooled to room temperature using tap water at normal temperature；
Later, it will be put into the baking oven that temperature is 125 DEG C through the second cooled film, toast 60 minutes, obtain low pole Group interlayer material；
（3）Prepare rigid support layer material
To first have in rule homopolypropylene and polyolefin elastomer and dehydroabietic acid input high-speed stirred pot, be uniformly mixed, Obtain third mixture；
Third mixture is put into double screw extruder again, is squeezed at a temperature of 215 DEG C of runner temperature and 205 DEG C of film mouth Tertiary membrane is made；
Later, tertiary membrane is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through cooled tertiary membrane, toast 60 minutes, obtain rigid branch Support layer material；
（4）Prepare toughness supporting layer material
First by linear low density polyethylene and high density polyethylene (HDPE) input high-speed stirred pot, it is uniformly mixed, obtains the 4th Mixture；
The 4th mixture is put into double screw extruder again, is squeezed at a temperature of 175 DEG C of runner temperature and 170 DEG C of film mouth The 4th film is made；
The 4th film is rapidly cooled to room temperature later；
Later, it will be put into the baking oven that temperature is 120 DEG C through the 4th cooled film, toast 25 minutes, obtain toughness branch Support layer material；
（5）Prepare hot sealing layer material
First by atactic copolymerized polypropene and polyolefin elastomer input high-speed stirred pot, it is uniformly mixed, it is mixed obtains the 5th Close material；
The 5th mixture is put into double screw extruder again, is squeezed at a temperature of 205 DEG C of runner temperature and 195 DEG C of film mouth The 5th film is made；
Later, the 5th film is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through the 5th cooled film, toast 60 minutes, obtain hot sealing layer Material；
（6）Prepare the first semi-finished product film
The screw extruder for being first 245 DEG C by polarity composite layer material input runner temperature, is cast into the first semi-finished product film；
（7）Prepare the second semi-finished product film
Low pole group interlayer material, rigid support layer material, toughness supporting layer material and hot sealing layer material are put into respectively Runner temperature is 205 DEG C, 215 DEG C, 175 DEG C, 205 DEG C, and film mouth temperature is that 215 DEG C of four screw extruders are extruded into four tunics While, then four tunics are cast co-extrusion into the second semi-finished product film in shape is stacked with curtain coating co-extrusion machine；
（8）It carries out compound
Adhesive layer is coated on the surface of the second semi-finished product film, and the first semi-finished product film is compounded in adhesive layer, obtains half Final polymer lithium ion battery flexible package internal layer co-extrusion film.The adhesive layer is acid modified polyolefin viscose；
（9）High-voltage corona processing is carried out with internal layer co-extrusion film to the flexible package of semi-manufactured polymer lithium ion battery, forms pole Property surface, obtains polymer Li-ion battery flexible package internal layer co-extrusion film.
Embodiment two
As shown in Figure 1, the polymer Li-ion battery flexible package internal layer co-extrusion film of the present invention includes successively from outside to inside Polarity composite layer, adhesive layer, low pole group interlayer, rigid support layer, toughness supporting layer and hot sealing layer.Wherein：
The polarity composite layer contains the anhydride grafting modified polyolefin of carboxylic acid group of the polyamide and 5 mass parts of 85 mass parts Elastomer；
The adhesive layer is acid modified polyolefin viscose；
The low pole group interlayer contains the atactic copolymerized polypropene of 85 mass parts, the polyvinyl chloride of 2 mass parts, 16 mass The polyolefin elastomer of part；
The rigid support layer, which contains having for 85 mass parts, advises homopolypropylene, the nano silicon dioxide of 0.1 mass parts, 15 The dehydroabietic acid of the polyolefin elastomer of mass parts and 0.5 mass parts；
The toughness supporting layer contains the linear low density polyethylene of 90 mass parts, the dehydroabietic acid of 0.1 mass parts and 1 matter Measure the high density polyethylene (HDPE) of part；
The hot sealing layer contains the atactic copolymerized polypropene of 85 mass parts, the nano silicon dioxide of 0.1 mass parts and 1 mass The polyolefin elastomer of part.
The thickness of wherein polarity composite layer is 11 microns, the thickness of adhesive layer is 2 microns, the thickness of low pole group interlayer is 7 microns, the thickness of rigid support layer be 20 microns, the thickness of toughness supporting layer is 13 microns, the thickness of hot sealing layer is 7 microns.
The method for preparing the polymer Li-ion battery flexible package internal layer co-extrusion film includes the following steps successively：
（1）Prepare polarity composite layer material
First by polyamide and the anhydride grafting modified polyolefin elastomer input high-speed stirred pot of carboxylic acid group, it is uniformly mixed, Obtain the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 260 DEG C of runner temperature and 250 DEG C of film mouth The first film is made；
Later, the first film is rapidly cooled to room temperature using tap water at normal temperature；
Later, in 155 DEG C of baking oven, to toast 60 minutes, it is multiple that polarity will be obtained through cooled the first film input temperature Close layer material；
（2）Prepare low pole group interlayer material
First atactic copolymerized polypropene, polyvinyl chloride and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains To the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 220 DEG C of runner temperature and 210 DEG C of film mouth The second film is made；
Later, the second film is rapidly cooled to room temperature using tap water at normal temperature；
Later, it will be put into the baking oven that temperature is 125 DEG C through the second cooled film, toast 60 minutes, obtain low pole Group interlayer material；
（3）Prepare rigid support layer material
To first there are rule homopolypropylene, nano silicon dioxide, polyolefin elastomer and dehydroabietic acid input high-speed stirred pot It is interior, it is uniformly mixed, obtains third mixture；
Third mixture is put into double screw extruder again, is squeezed at a temperature of 220 DEG C of runner temperature and 210 DEG C of film mouth Tertiary membrane is made；
Later, tertiary membrane is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through cooled tertiary membrane, toast 60 minutes, obtain rigid branch Support layer material；
（4）Prepare toughness supporting layer material
First linear low density polyethylene, dehydroabietic acid and high density polyethylene (HDPE) are put into high-speed stirred pot, are uniformly mixed, Obtain the 4th mixture；
The 4th mixture is put into double screw extruder again, is squeezed at a temperature of 180 DEG C of runner temperature and 170 DEG C of film mouth The 4th film is made；
The 4th film is rapidly cooled to room temperature later；
Later, it will be put into the baking oven that temperature is 120 DEG C through the 4th cooled film, toast 30 minutes, obtain toughness branch Support layer material；
（5）Prepare hot sealing layer material
First atactic copolymerized polypropene, nano silicon dioxide and polyolefin elastomer are put into high-speed stirred pot, mixing is equal It is even, obtain the 5th mixture；
The 5th mixture is put into double screw extruder again, is squeezed at a temperature of 210 DEG C of runner temperature and 200 DEG C of film mouth The 5th film is made；
Later, the 5th film is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through the 5th cooled film, toast 60 minutes, obtain hot sealing layer Material；
（6）Prepare the first semi-finished product film
The screw extruder for being first 250 DEG C by polarity composite layer material input runner temperature, is cast into the first semi-finished product film；
（7）Prepare the second semi-finished product film
Low pole group interlayer material, rigid support layer material, toughness supporting layer material and hot sealing layer material are put into respectively Runner temperature is 210 DEG C, 220 DEG C, 180 DEG C, 210 DEG C, and film mouth temperature is that 215 DEG C of four screw extruders are extruded into four tunics While, then four tunics are cast co-extrusion into the second semi-finished product film in shape is stacked with curtain coating co-extrusion machine；
（8）It carries out compound
Adhesive layer is coated on the surface of the second semi-finished product film, and the first semi-finished product film is compounded in adhesive layer, obtains half Final polymer lithium ion battery flexible package internal layer co-extrusion film.The adhesive layer is acid modified polyolefin viscose；
（9）High-voltage corona processing is carried out with internal layer co-extrusion film to the flexible package of semi-manufactured polymer lithium ion battery, forms pole Property surface, obtains polymer Li-ion battery flexible package internal layer co-extrusion film.
Embodiment three
As shown in Figure 1, the polymer Li-ion battery flexible package internal layer co-extrusion film of the present invention includes successively from outside to inside Polarity composite layer, adhesive layer, low pole group interlayer, rigid support layer, toughness supporting layer and hot sealing layer.Wherein：
The polarity composite layer contains the anhydride grafting modified polyene of carboxylic acid group of the polyamide and 10 mass parts of 95 mass parts Olefin elastomer；
The adhesive layer is acid modified polyolefin viscose；
The low pole group interlayer contains the atactic copolymerized polypropene of 90 mass parts, the polyvinyl chloride of 3 mass parts, 18 mass The polyolefin elastomer of part；
The rigid support layer, which contains having for 90 mass parts, advises homopolypropylene, the nano silicon dioxide of 0.3 mass parts, 20 The dehydroabietic acid of the polyolefin elastomer of mass parts and 1 mass parts；
The toughness supporting layer contains the linear low density polyethylene of 95 mass parts, the dehydroabietic acid of 0.3 mass parts and 5 matter Measure the high density polyethylene (HDPE) of part；
The hot sealing layer contains the atactic copolymerized polypropene of 90 mass parts, the nano silicon dioxide of 0.3 mass parts and 5 mass The polyolefin elastomer of part.
The thickness of wherein polarity composite layer is 12 microns, the thickness of adhesive layer is 3 microns, the thickness of low pole group interlayer is 8 microns, the thickness of rigid support layer be 22 microns, the thickness of toughness supporting layer is 15 microns, the thickness of hot sealing layer is 8 microns.
The method for preparing the polymer Li-ion battery flexible package internal layer co-extrusion film includes the following steps successively：
（1）Prepare polarity composite layer material
First by polyamide and the anhydride grafting modified polyolefin elastomer input high-speed stirred pot of carboxylic acid group, it is uniformly mixed, Obtain the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 265 DEG C of runner temperature and 255 DEG C of film mouth The first film is made；
Later, the first film is rapidly cooled to room temperature using tap water at normal temperature；
Later, in 155 DEG C of baking oven, to toast 60 minutes, it is multiple that polarity will be obtained through cooled the first film input temperature Close layer material；
（2）Prepare low pole group interlayer material
First atactic copolymerized polypropene, polyvinyl chloride and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains To the first mixture；
The first mixture is put into double screw extruder again, is squeezed at a temperature of 225 DEG C of runner temperature and 215 DEG C of film mouth The second film is made；
Later, the second film is rapidly cooled to room temperature using tap water at normal temperature；
Later, it will be put into the baking oven that temperature is 125 DEG C through the second cooled film, toast 60 minutes, obtain low pole Group interlayer material；
（3）Prepare rigid support layer material
To first there are rule homopolypropylene, nano silicon dioxide, polyolefin elastomer and dehydroabietic acid input high-speed stirred pot It is interior, it is uniformly mixed, obtains third mixture；
Third mixture is put into double screw extruder again, is squeezed at a temperature of 225 DEG C of runner temperature and 215 DEG C of film mouth Tertiary membrane is made；
Later, tertiary membrane is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through cooled tertiary membrane, toast 60 minutes, obtain rigid branch Support layer material；
（4）Prepare toughness supporting layer material
First linear low density polyethylene, dehydroabietic acid and high density polyethylene (HDPE) are put into high-speed stirred pot, are uniformly mixed, Obtain the 4th mixture；
The 4th mixture is put into double screw extruder again, at a temperature of 1855 DEG C of runner temperature and 170 DEG C of film mouth It is extruded into the 4th film；
The 4th film is rapidly cooled to room temperature later；
Later, it will be put into the baking oven that temperature is 120 DEG C through the 4th cooled film, toast 35 minutes, obtain toughness branch Support layer material；
（5）Prepare hot sealing layer material
First atactic copolymerized polypropene, nano silicon dioxide and polyolefin elastomer are put into high-speed stirred pot, mixing is equal It is even, obtain the 5th mixture；
The 5th mixture is put into double screw extruder again, is squeezed at a temperature of 215 DEG C of runner temperature and 205 DEG C of film mouth The 5th film is made；
Later, the 5th film is rapidly cooled to room temperature using tap water；
Later, it will be put into the baking oven that temperature is 125 DEG C through the 5th cooled film, toast 60 minutes, obtain hot sealing layer Material；
（6）Prepare the first semi-finished product film
The screw extruder for being first 255 DEG C by polarity composite layer material input runner temperature, is cast into the first semi-finished product film；
（7）Prepare the second semi-finished product film
Low pole group interlayer material, rigid support layer material, toughness supporting layer material and hot sealing layer material are put into respectively Runner temperature is 215 DEG C, 225 DEG C, 185 DEG C, 215 DEG C, and film mouth temperature is that 215 DEG C of four screw extruders are extruded into four tunics While, then four tunics are cast co-extrusion into the second semi-finished product film in shape is stacked with curtain coating co-extrusion machine；
（8）It carries out compound
Adhesive layer is coated on the surface of the second semi-finished product film, and the first semi-finished product film is compounded in adhesive layer, obtains half Final polymer lithium ion battery flexible package internal layer co-extrusion film.The adhesive layer is acid modified polyolefin viscose；
（9）High-voltage corona processing is carried out with internal layer co-extrusion film to the flexible package of semi-manufactured polymer lithium ion battery, forms pole Property surface, obtains polymer Li-ion battery flexible package internal layer co-extrusion film.

Claims (8)

1. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film, it is characterised in that the polymer Li-ion Battery flexible package includes polarity composite layer, adhesive layer, low pole barrier layer, rigid support layer, toughness successively with internal layer co-extrusion film Supporting layer and hot sealing layer, the method for preparing polymer Li-ion battery flexible package internal layer co-extrusion film include the following steps：
First prepare polarity composite layer material
It by polyamide and carboxylic acid group's anhydride grafting modified polyolefin elastomer input high-speed stirred pot, is uniformly mixed, obtains the One mixture；
First mixture is put into double screw extruder, at a temperature of 245 ~ 265 DEG C of runner temperature and 245 ~ 255 DEG C of film mouth It is extruded into the first film；
First film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 155 DEG C through the first cooled film, toast 60 minutes, obtain polarity composite layer material；
Low pole barrier layer material is prepared again
Atactic copolymerized polypropene, polyvinyl chloride and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains second Mixture；
Second mixture is put into double screw extruder, at a temperature of 215 ~ 225 DEG C of runner temperature and 205 ~ 215 DEG C of film mouth It is extruded into the second film；
Second film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through the second cooled film, toast 60 minutes, obtain low pole barrier layer object Material；
Later, rigid support layer material is prepared
To have in rule homopolypropylene, nano silicon dioxide, polyolefin elastomer and dehydroabietic acid input high-speed stirred pot, mixing Uniformly, third mixture is obtained；
Third mixture is put into double screw extruder, at a temperature of 215 ~ 225 DEG C of runner temperature and 205 ~ 215 DEG C of film mouth It is extruded into tertiary membrane；
Tertiary membrane is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through cooled tertiary membrane, toast 60 minutes, obtain rigid support layer material；
Later, toughness supporting layer material is prepared
Linear low density polyethylene, dehydroabietic acid and high density polyethylene (HDPE) are put into high-speed stirred pot, are uniformly mixed, obtains the Four mixtures；
4th mixture is put into double screw extruder, is extruded at a temperature of 175-185 DEG C of runner temperature and 170 DEG C of film mouth At the 4th film；
4th film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 120 DEG C through the 4th cooled film, toast 25 ~ 35 minutes, obtain toughness supporting layer object Material；
Later, hot sealing layer material is prepared
Atactic copolymerized polypropene, nano silicon dioxide and polyolefin elastomer are put into high-speed stirred pot, is uniformly mixed, obtains 5th mixture；
5th mixture is put into double screw extruder, at a temperature of 205 ~ 215 DEG C of runner temperature and 195 ~ 205 DEG C of film mouth It is extruded into the 5th film；
5th film is rapidly cooled to room temperature；
It will be put into the baking oven that temperature is 125 DEG C through the 5th cooled film, toast 60 minutes, obtain hot sealing layer material；
Later, the first semi-finished product film is prepared
The screw extruder for being 245 ~ 255 DEG C by polarity composite layer material input runner temperature, is cast into the first semi-finished product film；
Later, the second semi-finished product film is prepared
Low pole barrier layer material, rigid support layer material, toughness supporting layer raw material and hot sealing layer material are put into stream respectively Channel temp is 205 ~ 215 DEG C, 215 ~ 225 DEG C, 175 ~ 185 DEG C, 205 ~ 215 DEG C, and film mouth temperature is that 215 DEG C of four screw rods squeeze While going out machine and be extruded into four tunics, then with curtain coating co-extrusion machine four tunics are cast co-extrusion into the second semi-finished product film in shape is stacked；
Followed by, it carries out compound
Adhesive layer is coated on the surface of the second semi-finished product film, and the first semi-finished product film is compounded in adhesive layer, obtains semi-finished product Polymer Li-ion battery flexible package internal layer co-extrusion film；
Finally, high-voltage corona processing is carried out with internal layer co-extrusion film to the flexible package of semi-manufactured polymer lithium ion battery, forms polarity Surface obtains polymer Li-ion battery flexible package internal layer co-extrusion film.
2. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is the raw material that the polarity composite layer contains following mass parts：
85 ~ 95 mass parts of polyamide；
Anhydride grafting modified 5 ~ 10 mass parts of polyolefin elastomer of carboxylic acid group.
3. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is that the adhesive layer is acid modified polyolefin viscose.
4. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is the raw material that the low pole barrier layer contains following mass parts：
80 ~ 90 mass parts of atactic copolymerized polypropene；
1 ~ 3 mass parts of polyvinyl chloride；
15 ~ 18 mass parts of polyolefin elastomer.
5. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is that the rigid support layer contains the raw material of following mass parts：
There are rule 80 ~ 90 mass parts of homopolypropylene；
0 ~ 0.3 mass parts of nano silicon dioxide；
10 ~ 20 mass parts of polyolefin elastomer；
0.1 ~ 1 mass parts of dehydroabietic acid.
6. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is the raw material that the toughness supporting layer contains following mass parts：
80 ~ 95 mass parts of linear low density polyethylene；
0 ~ 0.3 mass parts of dehydroabietic acid；
0.5 ~ 5 mass parts of high density polyethylene (HDPE).
7. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is that the hot sealing layer contains the raw material of following mass parts：
80 ~ 90 mass parts of atactic copolymerized polypropene；
0 ~ 0.3 mass parts of nano silicon dioxide；
0.1 ~ 5 mass parts of polyolefin elastomer.
8. the polymer Li-ion battery flexible package preparation method of internal layer co-extrusion film according to claim 1, feature It is that the thickness of the polarity composite layer is 10 ~ 12 microns, the thickness of adhesive layer is 1 ~ 3 micron, the thickness of low pole barrier layer Thickness for 6 ~ 8 microns, rigid support layer is 18 ~ 22 microns, the thickness of toughness supporting layer is 12 ~ 15 microns, the thickness of hot sealing layer Degree is 5 ~ 8 microns.
CN201610695118.XA 2016-08-22 2016-08-22 Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof Active CN106129279B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314008A (en) * 1999-04-08 2001-09-19 大日本印刷株式会社 meterial for packaging cell, bag for packaging cell, and its production method
CN103700789A (en) * 2013-12-31 2014-04-02 昆山永翔光电科技有限公司 Flexible packaging film of polymer lithium ion battery, and preparation method of flexible packaging film
CN104934552A (en) * 2015-06-11 2015-09-23 武汉佳立有色金属材料有限公司 Preparation method of flexible package material of lithium ion battery
CN104966799A (en) * 2015-07-13 2015-10-07 苏州锂盾储能材料技术有限公司 Multifunctional composite packaging barrier aluminum-plastic film for lithium battery
CN105185928A (en) * 2015-08-16 2015-12-23 苏州锂盾储能材料技术有限公司 Package film capable of being applied to polymer lithium-ion battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314008A (en) * 1999-04-08 2001-09-19 大日本印刷株式会社 meterial for packaging cell, bag for packaging cell, and its production method
CN103700789A (en) * 2013-12-31 2014-04-02 昆山永翔光电科技有限公司 Flexible packaging film of polymer lithium ion battery, and preparation method of flexible packaging film
CN104934552A (en) * 2015-06-11 2015-09-23 武汉佳立有色金属材料有限公司 Preparation method of flexible package material of lithium ion battery
CN104966799A (en) * 2015-07-13 2015-10-07 苏州锂盾储能材料技术有限公司 Multifunctional composite packaging barrier aluminum-plastic film for lithium battery
CN105185928A (en) * 2015-08-16 2015-12-23 苏州锂盾储能材料技术有限公司 Package film capable of being applied to polymer lithium-ion battery

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