CN106553403A - A kind of aluminum-plastic composite membrane with excellent acid corrosion-resistant performance and preparation method thereof - Google Patents
A kind of aluminum-plastic composite membrane with excellent acid corrosion-resistant performance and preparation method thereof Download PDFInfo
- Publication number
- CN106553403A CN106553403A CN201610944913.8A CN201610944913A CN106553403A CN 106553403 A CN106553403 A CN 106553403A CN 201610944913 A CN201610944913 A CN 201610944913A CN 106553403 A CN106553403 A CN 106553403A
- Authority
- CN
- China
- Prior art keywords
- aluminium foil
- layer
- aluminum
- stearic acid
- composite membrane
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- Granted
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- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 239000012528 membrane Substances 0.000 title claims abstract description 45
- 239000004033 plastic Substances 0.000 title claims abstract description 44
- 229920003023 plastic Polymers 0.000 title claims abstract description 44
- 239000002253 acid Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 230000007797 corrosion Effects 0.000 title claims abstract description 17
- 238000005260 corrosion Methods 0.000 title claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 152
- 239000005030 aluminium foil Substances 0.000 claims abstract description 109
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 73
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 73
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000008117 stearic acid Substances 0.000 claims abstract description 73
- 239000012790 adhesive layer Substances 0.000 claims abstract description 24
- 239000005025 cast polypropylene Substances 0.000 claims abstract description 20
- 239000004952 Polyamide Substances 0.000 claims abstract description 13
- 229920002647 polyamide Polymers 0.000 claims abstract description 13
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 5
- 239000010408 film Substances 0.000 claims description 90
- 239000000243 solution Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000012286 potassium permanganate Substances 0.000 claims description 30
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 28
- KQPMFNHZHBLVRR-UHFFFAOYSA-N oxalic acid;hydrochloride Chemical compound Cl.OC(=O)C(O)=O KQPMFNHZHBLVRR-UHFFFAOYSA-N 0.000 claims description 23
- 239000011259 mixed solution Substances 0.000 claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- KYIDJMYDIPHNJS-UHFFFAOYSA-N ethanol;octadecanoic acid Chemical compound CCO.CCCCCCCCCCCCCCCCCC(O)=O KYIDJMYDIPHNJS-UHFFFAOYSA-N 0.000 claims description 16
- 239000011888 foil Substances 0.000 claims description 16
- 235000006408 oxalic acid Nutrition 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000007766 curtain coating Methods 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 229940116364 hard fat Drugs 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims 2
- 238000002386 leaching Methods 0.000 claims 2
- 235000001018 Hibiscus sabdariffa Nutrition 0.000 claims 1
- 235000005291 Rumex acetosa Nutrition 0.000 claims 1
- 240000007001 Rumex acetosella Species 0.000 claims 1
- 235000003513 sheep sorrel Nutrition 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 14
- 230000003075 superhydrophobic effect Effects 0.000 abstract description 12
- 239000005022 packaging material Substances 0.000 abstract description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 238000007654 immersion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- 238000007602 hot air drying Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method 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
- B32B15/088—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
- 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
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of aluminum-plastic composite membrane with excellent acid corrosion-resistant performance; it is characterized in that including cast polypropylene layer, the first adhesive layer, the first stearic acid film layer, aluminium foil layer, the second stearic acid film layer, the second adhesive layer and external protection from the inside to the outside successively, the external protection is biaxial tension polyethylene terephthalate layer or two-way stretching polyamide layer.The present invention also provides a kind of preparation method of the above-mentioned aluminum-plastic composite membrane with excellent acid corrosion-resistant performance.The aluminum-plastic composite membrane of the present invention can provide reliable protection for lithium ion battery, it is ensured that its service life as the shell packaging material of lithium ion battery, with excellent acid corrosion-resistant performance.The aluminum-plastic composite membrane of the present invention soaks electrolyte in 90 ± 5% relative humiditys, 85 ± 2 DEG C of environment after 14 days, and super-hydrophobic aluminium lamination is not stratified with cast polypropylene layer, and without damage, and peeling force maintains 8 10N/15mm.
Description
Technical field
The present invention relates to packaging material for battery case, and in particular to a kind of plastic-aluminum with excellent acid corrosion-resistant performance is multiple
Close film and preparation method thereof.
Background technology
Lithium rechargeable battery is widely used in the power supply of notebook computer, video camera, portable phone, electric automobile etc..
As the lithium rechargeable battery, the referred to as structure safeguarded around battery body using shell, shell packaging material.Lithium ion
Soft-package battery needs to carry out which with aluminum-plastic composite membrane heat sealed package, and packaging is an indispensable important composition for it
Part, lithium battery can not depart from packaging and be individually present, and the service life of packaging has identical with the service life of lithium battery
Life cycle.
The lithium battery of the hard box encapsulation such as box hat or aluminum hull (refers to the battery primary charging process to new production, is right in chemical conversion
Battery material Activation Activity) and follow-up use during can discharge gas, such as failing timely aerofluxuss will affect the electricity of battery
Chemical property, can cause battery explosion when air pressure inside increases to certain value.At present will be by drawing polyamide layer, aluminium foil
Layer, thermoplastic resin layer bond the packaging material of integration in order, are commonly called as aluminum-plastic composite membrane.Made using aluminum-plastic composite membrane
For the flexible package lithium cell of encapsulating material, it is possible to use this flexible material expansion release pressure of aluminum-plastic composite membrane, so as to prevent
Battery explosion, increases safety in utilization.
Lithium battery is contained within the electrolyte as ion transport vehicle, usually by carbonate based organic solvent and hexafluoro phosphorus
Sour lithium salts composition.The easy moisture absorption of lithium hexafluoro phosphate, produces Fluohydric acid., and corrosion cell packaging material cause lithium battery flatulence bulge, most
Fail eventually.To meet the stability requirement of battery use quality, it is desirable to as packaging material aluminum-plastic composite membrane have it is sufficiently strong
Acid corrosion-resistant performance.
In order to strengthen the acid corrosion-resistant performance of aluminum-plastic composite membrane, the method for adopting at present has：Using sexavalence chromic salts, acid, fluorine
The mixed solution of compound carries out the chemical treatment of single or double to aluminium foil, to improve the acidresistant property of aluminum foil material；Or
Person is coated with functional coat in the internal layer thermoplastic resin layer of aluminum-plastic composite membrane (such as oleamide, erucyl amide, liquid stone
Wax etc.), to avoid electrolyte directly contact thermoplastic resin layer.But above-mentioned packaging material are remained in following defects：(1) use
Hexavalent chromium, has a significant damage to environment and human body, and the aluminium foil layer after processing with its on the inside of thermoplastic resin layer and its
The drawing polyamide layer adhesive property in outside is reduced；(2) although improving the mechanical performance adaptability of material and mould, sacrifice
The sealing property of own partial；(3) thermoplastic resin layer and its functional coat is only leaned on to ensure to reach electrolyte resistance corruption
The purpose of erosion.
The content of the invention
The technical problem to be solved is to provide the preparation of a kind of aluminum-plastic composite membrane and this aluminum-plastic composite membrane
Method, this aluminum-plastic composite membrane can be as the shell packaging material of lithium ion battery, with excellent acid corrosion-resistant performance.Adopt
Technical scheme is as follows：
A kind of aluminum-plastic composite membrane with excellent acid corrosion-resistant performance, it is characterised in that include that curtain coating is poly- from the inside to the outside successively
Propylene layer, the first adhesive layer, the first stearic acid film layer, aluminium foil layer, the second stearic acid film layer, the second adhesive layer and external protection,
The external protection is biaxial tension polyethylene terephthalate layer (biaxial tension pet layer) or two-way stretching polyamide layer
(biaxial tension PA layers).
In preferred version, the first stearic acid film layer, the second stearic acid on the inner surface, outer surface in aluminium foil layer, are formed
The method of film layer comprises the steps successively：
(1) aluminium foil is immersed in hydrochloric acid-oxalic acid mixed solution of the temperature for 20-30 DEG C, soaks 0.5-2min；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：5-20 gram of oxalic acid, concentrated hydrochloric acid (chlorination
Hydrogen content is 37wt%) 5-100 gram, balance of water；
(2) aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and immerses the potassium permanganate solution that temperature is 20-30 DEG C
In, soak 1-2min；
Every liter of potassium permanganate solution contains：5-32 gram of potassium permanganate, balance of water；
(3) aluminium foil is taken out from potassium permanganate solution, after cleaned aluminium foil, then aluminium foil is dried (preferably in 70-
Dry at 80 DEG C)；
(4) aluminium foil is immersed in stearic acid ethanol solution of the mass percent concentration for 0.1-1%, soaks 1-10 minutes；
Then aluminium foil is taken out from stearic acid ethanol solution and is dried (preferably with 50-70 DEG C of hot air drying), in the inner side table of aluminium foil
Form the first stearic acid film layer, the second stearic acid film layer on face, outer surface respectively, the aluminium foil constitutes the aluminum of aluminum-plastic composite membrane
Layers of foil.
In preferred steps (1), aluminium foil used is the alloy foil that thickness is 30-50 μm.
In above-mentioned steps (1), hydrochloric acid-oxalic acid mixed solution impregnates acid etch to aluminium foil, forms micron order in aluminium foil surface
Loose structure.Hydrochloric acid-oxalic acid mixed liquor is acted on to aluminium foil surface：Aluminium foil is immersed in hydrochloric acid-oxalic acid mixed solution, aluminium foil surface
Oxide-film be dissolved first；Then (pit corrosion) preferentially can be corroded when hydrochloric acid is run in the high-energy point area of aluminium foil surface,
In the presence of hydrogen and acid, subsequently make etch pit interior metal that dissolving occurs, it is uneven due to metal inside lattice defect
Property, makes metal etch speed inconsistent, also results in that surface corrosion degree is different, and occur in that many sizes differ is concavo-convex micro-
Fine texture, so as to form micron-sized random loose structure in aluminium foil surface.Oxalic acid belongs to weak acid, to aluminum and oxide-film dissolving
Property is little, plays a part of acid restrainer.
In step (2), potassium permanganate solution is impregnated to aluminium foil, and potassium permanganate, can be with used as a kind of strong oxidizer, passivator
One layer more tiny of (nanoscale), finer and close oxide layer are re-formed in the aluminium surface of micrometer level porous structure, so as in aluminum
Paper tinsel surface forms the granular layer of the alternate loose structure of micro-, nanometer, and (about 1-5 μm of the hole depth of the loose structure granular layer, aperture is about
1-2 μm, about 5-20 μm of pitch of holes), make aluminium foil layer rough surface.
In above-mentioned steps (4), when the aluminium foil of Jing rough surface is immersed in stearic acid ethanol solution, stearic acid ethanol
Solution can be penetrated in the hole of aluminium foil surface, and wraps the granular layer of loose structure, so, the first stearic acid film of formation
Granular layer is wrapped, and is combined closely with aluminium foil layer surface by layer, the second stearic acid film layer.Stearic acid is low-surface energy substance,
It is interweaved with um porous structure particles layer, forms fine and close coating layer (i.e. the first stearic acid film layer, the second stearic acid film
Layer), with superhydrophobic characteristic, excellent acid-resistant corrosion；Meanwhile, stearic acid is a kind of fatty acid of saturation, in molecule long-chain
It is connected with methylene singly-bound, internal carbon atom bonding two hydrogen atoms, stearic acid molecule can pass through ionic bond and aluminium foil
The porous structure layer on surface is combined and makes coating layer adhesiveness strong, and surface property is stable, thus the first stearic acid film layer, second hard
Fat acid film layer is big with aluminium foil surface adhesion, further can form good bonding with the first adhesive layer and the second adhesive layer, easily
In boning with plastic resin layers and external protection.
Above-mentioned first stearic acid film layer, the second stearic acid film layer are stable super-hydrophobic layer.Generally, above-mentioned first stearic acid
The contact angle of film layer, the second stearic acid film layer and water is all higher than 150 °, and water droplet roll angle is respectively less than 10 °.It is preferred that above-mentioned first is hard
The contact angle of fat acid film layer, the second stearic acid film layer and water is all higher than 160 °, and water droplet roll angle is respectively less than 7 °.It is preferred that above-mentioned first
Stearic acid film layer, the thickness of the second stearic acid film layer are 3-10 μm.
The superhydrophobic aluminum foil (being made up of the first stearic acid film layer, aluminium foil layer and the second stearic acid film layer) for being formed is common
All there is in air ambient and slightly acidic water solution environmental good super-hydrophobic stability.
The contact angle of above-mentioned first stearic acid film layer, the second stearic acid film layer and water can pass through screen optical contact angular measurement
Instrument is determined, and is measured using drop method of testing, and during measurement, water droplet used is 7 μ l-9 μ l.Water droplet roll angle can adopt following methods
Test：The Super-hydrophobic aluminium foil sample that need to be tested is fixed on the sample stage with protractor, is then carefully inclined from 0 ° of beginning
Sample platform, then 5 μ l-9 μ l water droplets are dropped on sample stage with microsyringe, when water droplet tumbles foil samples surface, sample stage is inclined
Angle water droplet roll angle just for the superhydrophobic aluminum foil surface.
Above-mentioned cast polypropylene layer (also referred to as tensionless winkler foundation polypropylene film) is used as hot sealing layer.
Polyamide (PA) is commonly called as nylon, the material of nylon 6 preferably wherein or nylon66 fiber as two-way stretching polyamide layer.
In preferred version, the thickness of above-mentioned external protection is 10-30 μm, and the thickness of cast polypropylene layer is 30-100 μm.
The present invention also provides a kind of preparation method of the above-mentioned aluminum-plastic composite membrane with excellent acid corrosion-resistant performance, its feature
It is to comprise the steps：
(1 ') immerses aluminium foil in hydrochloric acid-oxalic acid mixed solution of the temperature for 20-30 DEG C, soaks 0.5-2min；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：5-20 gram of oxalic acid, concentrated hydrochloric acid 5-100
Gram, balance of water；
Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and immerses the potassium permanganate solution that temperature is 20-30 DEG C by (2 ')
In, soak 1-2min；
Every liter of potassium permanganate solution contains：5-32 gram of potassium permanganate, balance of water；
Aluminium foil is taken out from potassium permanganate solution by (3 '), after cleaned by aluminium foil, then aluminium foil drying (is preferably existed
Dry at 70-80 DEG C)；
(4 ') immerse aluminium foil in stearic acid ethanol solution of the mass percent concentration for 0.1-1%, soak 1-10 minutes；
Then aluminium foil is taken out from stearic acid ethanol solution and is dried (preferably with 50-70 DEG C of hot air drying), in the inner side table of aluminium foil
Form the first stearic acid film layer, the second stearic acid film layer on face, outer surface respectively, the aluminium foil constitutes the aluminum of aluminum-plastic composite membrane
Layers of foil；
(5 ') form biaxial stretch-formed poly- to benzene two in the second adhesive layer bonding on the lateral surface of the second stearic acid film layer
Formic acid glycol ester thin film or two-way stretching polyamide film, form external protection；And in the medial surface of the first stearic acid film layer
The first adhesive layer of upper formation the upper cast polypropylene film that bonds, form cast polypropylene layer, obtain aluminum-plastic composite membrane.
In preferred steps (1 '), aluminium foil used is the alloy foil that thickness is 30-50 μm.
The aluminum-plastic composite membrane of the present invention can be as the shell packaging material of lithium ion battery, with excellent acid corrosion-resistant
Performance, can provide reliable protection for lithium ion battery, it is ensured that its service life.The aluminum-plastic composite membrane of the present invention 90 ±
Electrolyte is soaked in 5% relative humidity, 85 ± 2 DEG C of environment after 14 days, super-hydrophobic aluminium lamination is not stratified with cast polypropylene layer, lossless
It is bad, and peeling force maintains 8-10N/15mm (by universal electrical puller system, requiring to test according to GB/T8808).
Additionally, the low in raw material price such as the hydrochloric acid used by super-hydrophobic process, oxalic acid, stearic acid are carried out to aluminium foil, to environment
It is more friendly with human body；Processing method operating procedure is simple, is adapted to industrially scalable application.
Description of the drawings
Fig. 1 is the structural representation of each preferred embodiment aluminum-plastic composite membrane of the invention.
Specific embodiment
Embodiment 1
In the present embodiment, the preparation method of aluminum-plastic composite membrane comprises the steps：
Aluminium foil (aluminium foil used is the alloy foil that thickness is 40 μm) is immersed hydrochloric acid-oxalic acid that temperature is 25 DEG C and is mixed by (1 ')
Close in solution, soak 1min；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：7.2 grams of oxalic acid, 5 grams of concentrated hydrochloric acid are remaining
Measure as water；
Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and is immersed in the potassium permanganate solution that temperature is 25 DEG C by (2 '),
Immersion 1min；
Every liter of potassium permanganate solution contains：15.8 grams of potassium permanganate, balance of water；
Aluminium foil is taken out from potassium permanganate solution by (3 '), after cleaned by aluminium foil, then aluminium foil is dried (at 75 DEG C
Drying)；
The granular layer of the alternate loose structure of micro-, nanometer is formed in aluminium foil surface, the hole depth of the loose structure granular layer is about
1-2 μm, about 1 μm of aperture, about 15-20 μm of pitch of holes；
During aluminium foil immersion mass percent concentration is 0.5% stearic acid ethanol solution by (4 '), soak 5 minutes；Then
Aluminium foil is taken out from stearic acid ethanol solution and is dried (with 60 DEG C of hot air dryings), the inner surface, outer surface in aluminium foil
Upper to form the first stearic acid film layer, the second stearic acid film layer respectively, the aluminium foil constitutes the aluminium foil layer of aluminum-plastic composite membrane；
First stearic acid film layer, aluminium foil layer and the second stearic acid film layer composition superhydrophobic aluminum foil.Jing is tested, the first stearic acid
The contact angle of film layer, the second stearic acid film layer and water is 153 ± 1.8 °, and water droplet roll angle is 9 °；First stearic acid film layer,
The thickness of the second stearic acid film layer is each about 5 μm；
(5 ') form biaxial stretch-formed poly- to benzene two in the second adhesive layer bonding on the lateral surface of the second stearic acid film layer
Formic acid glycol ester thin film (its thickness is 20 μm), forms external protection；And formed on the medial surface of the first stearic acid film layer
First adhesive layer the upper cast polypropylene film that bonds (adopt thickness for 60 μm of cast polypropylene film), form curtain coating poly- third
Alkene layer, obtains aluminum-plastic composite membrane.
With reference to Fig. 1, the aluminum-plastic composite membrane for obtaining include successively from the inside to the outside cast polypropylene layer 1, the first adhesive layer 4, the
Monostearate film layer 6, aluminium foil layer 2, the second stearic acid film layer 7, the second adhesive layer 5 and external protection 3.External protection 3 is two-way
Stretching polyethylene terephthalate layer.
Embodiment 2
In the present embodiment, the preparation method of aluminum-plastic composite membrane comprises the steps：
Aluminium foil (aluminium foil used is the alloy foil that thickness is 30 μm) is immersed hydrochloric acid-oxalic acid that temperature is 20 DEG C and is mixed by (1 ')
Close in solution, soak 0.8min；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：7.2 grams of oxalic acid, 20 grams of concentrated hydrochloric acid are remaining
Measure as water；
Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and is immersed in the potassium permanganate solution that temperature is 20 DEG C by (2 '),
Immersion 1.5min；
Every liter of potassium permanganate solution contains：31.6 grams of potassium permanganate, balance of water；
Aluminium foil is taken out from potassium permanganate solution by (3 '), after cleaned by aluminium foil, then aluminium foil is dried (at 70 DEG C
Drying)；
The granular layer of the alternate loose structure of micro-, nanometer is formed in aluminium foil surface, the hole depth of the loose structure granular layer is about
2-5 μm, about 2 μm of aperture, about 5-10 μm of pitch of holes；
During aluminium foil immersion mass percent concentration is 1% stearic acid ethanol solution by (4 '), soak 5 minutes；Then will
Aluminium foil takes out from stearic acid ethanol solution and is dried (with 50 DEG C of hot air dryings), on the inner surface, outer surface in aluminium foil
The first stearic acid film layer, the second stearic acid film layer are formed respectively, and the aluminium foil constitutes the aluminium foil layer of aluminum-plastic composite membrane；
First stearic acid film layer, aluminium foil layer and the second stearic acid film layer composition superhydrophobic aluminum foil.Jing is tested, the first stearic acid
The contact angle of film layer, the second stearic acid film layer and water is 166 ± 1.8 °, and water droplet roll angle is 7 °；First stearic acid film layer,
The thickness of the second stearic acid film layer is each about 8 μm；
It is thin that (5 ') form two-way stretching polyamide in the second adhesive layer bonding on the lateral surface of the second stearic acid film layer
Film (its thickness is 30 μm), forms external protection；And the first adhesive layer is formed on the medial surface of the first stearic acid film layer and is glued
Cast polypropylene film (adopt thickness for 40 μm of cast polypropylene film) is tied, cast polypropylene layer is formed, is obtained plastic-aluminum
Composite membrane.
With reference to Fig. 1, the aluminum-plastic composite membrane for obtaining include successively from the inside to the outside cast polypropylene layer 1, the first adhesive layer 4, the
Monostearate film layer 6, aluminium foil layer 2, the second stearic acid film layer 7, the second adhesive layer 5 and external protection 3.External protection 3 is two-way
Drawing polyamide layer.
Embodiment 3
In the present embodiment, the preparation method of aluminum-plastic composite membrane comprises the steps：
Aluminium foil (aluminium foil used is the alloy foil that thickness is 50 μm) is immersed hydrochloric acid-oxalic acid that temperature is 30 DEG C and is mixed by (1 ')
Close in solution, soak 0.5min；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：20 grams of oxalic acid, 100 grams of concentrated hydrochloric acid are remaining
Measure as water；
Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and is immersed in the potassium permanganate solution that temperature is 30 DEG C by (2 '),
Immersion 2min；
Every liter of potassium permanganate solution contains：7.9 grams of potassium permanganate, balance of water；
Aluminium foil is taken out from potassium permanganate solution by (3 '), after cleaned by aluminium foil, then aluminium foil is dried (at 80 DEG C
Drying)；
The granular layer of the alternate loose structure of micro-, nanometer is formed in aluminium foil surface, and (hole depth of the loose structure granular layer is about
4-5 μm, about 1-2 μm of aperture, about 15-20 μm of pitch of holes)；
During aluminium foil immersion mass percent concentration is 0.1% stearic acid ethanol solution by (4 '), soak 10 minutes；Then
Aluminium foil is taken out from stearic acid ethanol solution and is dried (with 70 DEG C of hot air dryings), the inner surface, outer surface in aluminium foil
Upper to form the first stearic acid film layer, the second stearic acid film layer respectively, the aluminium foil constitutes the aluminium foil layer of aluminum-plastic composite membrane；
First stearic acid film layer, aluminium foil layer and the second stearic acid film layer composition superhydrophobic aluminum foil.Jing is tested, the first stearic acid
The contact angle of film layer, the second stearic acid film layer and water is 160 ± 1.8 °, and water droplet roll angle is 8 °；First stearic acid film layer,
The thickness of the second stearic acid film layer is each about 7 μm；
(5 ') form biaxial stretch-formed poly- to benzene two in the second adhesive layer bonding on the lateral surface of the second stearic acid film layer
Formic acid glycol ester thin film (its thickness is 10 μm), forms external protection；And formed on the medial surface of the first stearic acid film layer
First adhesive layer the upper cast polypropylene film that bonds (adopt thickness for 100 μm of cast polypropylene film), form curtain coating poly-
Propylene layer, obtains aluminum-plastic composite membrane.
With reference to Fig. 1, the aluminum-plastic composite membrane for obtaining include successively from the inside to the outside cast polypropylene layer 1, the first adhesive layer 4, the
Monostearate film layer 6, aluminium foil layer 2, the second stearic acid film layer 7, the second adhesive layer 5 and external protection 3.External protection 3 is two-way
Stretching polyethylene terephthalate layer.
The plastic-aluminum combined film properties of embodiment 1-3 are tested, test result is as shown in table 1 below.Table 1：Embodiment 1-3
The test result of plastic-aluminum combined film properties
Claims (6)
1. a kind of aluminum-plastic composite membrane with excellent acid corrosion-resistant performance, it is characterised in that include curtain coating poly- third from the inside to the outside successively
Alkene layer, the first adhesive layer, the first stearic acid film layer, aluminium foil layer, the second stearic acid film layer, the second adhesive layer and external protection, institute
External protection is stated for biaxial tension polyethylene terephthalate layer or two-way stretching polyamide layer.
2. aluminum-plastic composite membrane according to claim 1, it is characterised in that：On inner surface, outer surface in aluminium foil layer
Form the first stearic acid film layer, the method for the second stearic acid film layer to comprise the steps successively：
（1）Aluminium foil is immersed in hydrochloric acid-oxalic acid mixed solution of the temperature for 20-30 DEG C, 0.5-2min is soaked；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：5-20 gram of oxalic acid, 5-100 gram of concentrated hydrochloric acid are remaining
Measure as water；
（2）Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and immersed in the potassium permanganate solution that temperature is 20-30 DEG C, leaching
Bubble 1-2min；
Every liter of potassium permanganate solution contains：5-32 gram of potassium permanganate, balance of water；
（3）Aluminium foil is taken out from potassium permanganate solution, after cleaned aluminium foil, then aluminium foil is dried；
（4）Aluminium foil is immersed in stearic acid ethanol solution of the mass percent concentration for 0.1-1%, 1-10 minutes are soaked；Then will
Aluminium foil takes out from stearic acid ethanol solution and is dried, and forms the first Hard Fat respectively on the inner surface, outer surface in aluminium foil
Sorrel layer, the second stearic acid film layer, the aluminium foil constitute the aluminium foil layer of aluminum-plastic composite membrane.
3. aluminum-plastic composite membrane according to claim 2, it is characterised in that：Step（1）In, it is 30- that aluminium foil used is thickness
50 μm of alloy foil.
4. the aluminum-plastic composite membrane according to any one of claim 1-3, it is characterised in that：The thickness of the external protection is
10-30 μm, the thickness of cast polypropylene layer is 30-100 μm.
5. the preparation method of the aluminum-plastic composite membrane described in claim 1, it is characterised in that comprise the steps：
（1’）Aluminium foil is immersed in hydrochloric acid-oxalic acid mixed solution of the temperature for 20-30 DEG C, 0.5-2min is soaked；
Every liter of hydrochloric acid-oxalic acid mixed solution is formed by the preparation of raw material of following ratios：5-20 gram of oxalic acid, 5-100 gram of concentrated hydrochloric acid are remaining
Measure as water；
（2’）Aluminium foil is taken out from hydrochloric acid-oxalic acid mixed solution and immersed in the potassium permanganate solution that temperature is 20-30 DEG C, leaching
Bubble 1-2min；
Every liter of potassium permanganate solution contains：5-32 gram of potassium permanganate, balance of water；
（3’）Aluminium foil is taken out from potassium permanganate solution, after cleaned aluminium foil, then aluminium foil is dried；
（4’）Aluminium foil is immersed in stearic acid ethanol solution of the mass percent concentration for 0.1-1%, 1-10 minutes are soaked；Then
Aluminium foil is taken out from stearic acid ethanol solution and is dried, and first is formed respectively on the inner surface, outer surface in aluminium foil hard
Fat acid film layer, the second stearic acid film layer, the aluminium foil constitute the aluminium foil layer of aluminum-plastic composite membrane；
（5’）Biaxial stretch-formed poly terephthalic acid in the second adhesive layer bonding is formed on the lateral surface of the second stearic acid film layer
Glycol ester thin film or two-way stretching polyamide film, form external protection；And on the medial surface of the first stearic acid film layer shape
Into the first adhesive layer and the upper cast polypropylene film that bonds, cast polypropylene layer is formed, aluminum-plastic composite membrane is obtained.
6. the preparation method of aluminum-plastic composite membrane according to claim 5, it is characterised in that：Step（1’）In, aluminium foil used
Be thickness be 30-50 μm of alloy foil.
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Cited By (6)
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| CN109192887A (en) * | 2018-07-17 | 2019-01-11 | 上海恩捷新材料科技股份有限公司 | A kind of aluminum plastic film and preparation method thereof |
| CN109449319A (en) * | 2018-10-24 | 2019-03-08 | 无锡恩捷新材料科技有限公司 | A kind of soft bag lithium ionic cell aluminum plastic film |
| CN109671876A (en) * | 2018-11-29 | 2019-04-23 | 明基材料（芜湖）有限公司 | Battery packaging film and its manufacturing method |
| CN110039805A (en) * | 2019-06-04 | 2019-07-23 | 广东中兴塑料纸类印刷有限公司 | A kind of production technology of composite packing film |
| CN112143017A (en) * | 2020-08-28 | 2020-12-29 | 广东安德力新材料有限公司 | Nylon layer for power battery aluminum plastic film and preparation process thereof |
| CN112622364A (en) * | 2019-09-24 | 2021-04-09 | 上海恩捷新材料科技有限公司 | Aluminum-plastic composite film for packaging lithium ion battery |
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| CN109192887A (en) * | 2018-07-17 | 2019-01-11 | 上海恩捷新材料科技股份有限公司 | A kind of aluminum plastic film and preparation method thereof |
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| CN109671876A (en) * | 2018-11-29 | 2019-04-23 | 明基材料（芜湖）有限公司 | Battery packaging film and its manufacturing method |
| CN110039805A (en) * | 2019-06-04 | 2019-07-23 | 广东中兴塑料纸类印刷有限公司 | A kind of production technology of composite packing film |
| CN112622364A (en) * | 2019-09-24 | 2021-04-09 | 上海恩捷新材料科技有限公司 | Aluminum-plastic composite film for packaging lithium ion battery |
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