CN117002108A - Composite aluminum foil aluminum plastic film and preparation method thereof - Google Patents
Composite aluminum foil aluminum plastic film and preparation method thereof Download PDFInfo
- Publication number
- CN117002108A CN117002108A CN202310946314.XA CN202310946314A CN117002108A CN 117002108 A CN117002108 A CN 117002108A CN 202310946314 A CN202310946314 A CN 202310946314A CN 117002108 A CN117002108 A CN 117002108A
- Authority
- CN
- China
- Prior art keywords
- film
- aluminum foil
- composite
- aluminum
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 183
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 239000011888 foil Substances 0.000 title claims abstract description 136
- 239000002131 composite material Substances 0.000 title claims abstract description 84
- 239000002985 plastic film Substances 0.000 title claims abstract description 42
- 229920006255 plastic film Polymers 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000012792 core layer Substances 0.000 claims abstract description 41
- 239000010410 layer Substances 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 14
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 claims description 84
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 15
- 239000000654 additive Substances 0.000 claims description 14
- 230000000996 additive effect Effects 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- -1 polypropylene Polymers 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 8
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- 238000005238 degreasing Methods 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 239000011775 sodium fluoride Substances 0.000 claims description 4
- 235000013024 sodium fluoride Nutrition 0.000 claims description 4
- QQJNURGRPIYAMP-UHFFFAOYSA-N CO.C(C(=C)C)(=O)OCC1CO1 Chemical compound CO.C(C(=C)C)(=O)OCC1CO1 QQJNURGRPIYAMP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000011609 ammonium molybdate Substances 0.000 claims description 3
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 3
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 3
- 229940010552 ammonium molybdate Drugs 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-LWMBPPNESA-N levotartaric acid Chemical compound OC(=O)[C@@H](O)[C@H](O)C(O)=O FEWJPZIEWOKRBE-LWMBPPNESA-N 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 125000003396 thiol group Chemical class [H]S* 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 229920006284 nylon film Polymers 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000009823 thermal lamination Methods 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000010030 laminating Methods 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000007756 gravure coating Methods 0.000 description 3
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000124703 Torilis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- 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
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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
- B32B15/20—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
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
-
- 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
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—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
- B32B2307/30—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
- B32B2307/70—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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- 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
- B32B2307/72—Density
-
- 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
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- 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)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of lithium battery aluminum plastic films; the invention discloses a composite aluminum foil aluminum plastic film and a preparation method thereof. The composite aluminum foil aluminum plastic film sequentially comprises an outer layer, a PP composite aluminum foil core layer and an inner layer from top to bottom; the outer layer includes a heat-resistant resin film and an outer adhesive layer; the inner layer includes a thermoplastic resin film and an inner adhesive layer; the PP composite aluminum foil core layer sequentially comprises a PP film and aluminum foils arranged on two sides of the PP film; the aluminum foil is in contact with the outer adhesive layer and the inner adhesive layer.
Description
Technical Field
The invention relates to the technical field of lithium battery aluminum plastic films; the invention discloses a composite aluminum foil aluminum plastic film and a preparation method thereof.
Background
At present, the aluminum plastic film is used as a packaging film of the soft package battery, and has the advantages of light weight, thin thickness, flexible WeChat design and the like. The material is used as one of five materials of a soft package battery, and plays an important role in protecting a battery inner core in a lithium battery; and therefore its cost ratio is also inferior to that of the positive electrode material and the separator.
Based on the applicability of the soft aluminum plastic film in the lithium battery and the importance of the soft aluminum plastic film to the whole battery pack; the aluminum plastic film should have good barrier property and double-sided composite aluminum foil performance, and should have excellent cold stamping forming performance; thirdly, the steel should have good deep drawability and light weight properties. In the current market, the aluminum plastic film and the matrix layer are aluminum foils with the thickness of 35-40 mu m, and the soft package of the battery is manufactured, firstly, the cold stamping forming performance is not enough, so that the defective rate of the soft package aluminum plastic film of the rupture leakage is increased; secondly, after forming, the aluminum foil is gradually corroded by electrolyte due to the risk of thinning at corners caused by poor plasticity and poor packaging performance of the aluminum foil.
In conclusion, the preparation of the composite aluminum foil aluminum plastic film has important significance.
Disclosure of Invention
The invention aims to provide a composite aluminum foil aluminum plastic film and a preparation method thereof, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the composite aluminum foil aluminum plastic film sequentially comprises an outer layer, a PP composite aluminum foil core layer and an inner layer from top to bottom; the outer layer includes a heat-resistant resin film and an outer adhesive layer; the inner layer includes a thermoplastic resin film and an inner adhesive layer; the PP composite aluminum foil core layer sequentially comprises a PP film and aluminum foils arranged on two sides of the PP film; the aluminum foil is in contact with the outer adhesive layer and the inner adhesive layer.
More preferably, the heat-resistant resin film comprises a nylon film; the outer adhesive layer comprises at least one of acrylic resin, polyester resin and derivatives thereof; the thermoplastic resin film includes a polypropylene film; the raw materials of the inner bonding layer comprise one or more of polypropylene resin and derivatives thereof; the aluminum foil is O-state soft aluminum foil.
More preferably, the thickness of the heat-resistant resin film is 15 to 30 μm; the coating weight of the outer adhesive layer is 3-4 g/m < 2 >; the thickness of the thermoplastic resin film is 10-13 mu m; the coating weight of the internal binder is 2-3 g/m < 2 >.
More optimally, the thickness of the PP composite aluminum foil core layer is 30-40 mu m; wherein the thickness of the aluminum foil is 10-13 mu m; the thickness of the PP film is 10-14 mu m.
More preferably, the method comprises the following steps:
step 1: two aluminum foils are overlapped on two sides of the PP film and are compounded at 150-165 ℃ to obtain a PP composite aluminum foil core layer;
step 2: coating an external binder on one side of a PP composite aluminum foil core layer, stacking a heat-resistant resin film, and performing heat lamination at 85-110 ℃ to form an external layer; coating an inner binder on the other side of the PP composite aluminum foil core layer, overlapping a thermoplastic resin film, and performing thermal lamination at the temperature of 85-110 ℃ to form an inner layer; obtaining a composite film;
step 3: and (3) placing the composite film obtained in the step (2) at 55-60 ℃ and curing for 5-7 days to obtain the composite aluminum foil aluminum plastic film.
More preferably, in step 1, the aluminum foil is pretreated; the specific process is as follows: degreasing an aluminum foil in acetone, then placing the aluminum foil in a molybdate solution, soaking the aluminum foil in the molybdate solution for 60 to 120 seconds at the temperature of 40 to 50 ℃, washing the aluminum foil with water, and drying the aluminum foil to obtain a pretreated aluminum foil; overlapping the pretreated aluminum foils on two sides of the PP film, and compounding at 150-165 ℃ to obtain a PP composite aluminum foil core layer;
wherein the raw materials of the molybdate solution comprise the following components: 55-60 g/L phosphoric acid, 5-7 g/L ammonium molybdate, 2-3 g/L sodium fluoride, 4-5 g/L tartaric acid and 2-3 g/L additive.
More optimally, the preparation method of the additive comprises the following steps: adding phosphorus oxychloride into a reaction kettle, dropwise adding a polyethylene glycol-tetrahydrofuran mixed solution at the temperature of 5-10 ℃ and reacting for 5-6 hours at constant temperature; dripping mercapto tetra polyethylene glycol-tetrahydrofuran mixed solution, heating to 25-30 ℃ and reacting for 4-4.5 hours; heating to 60-65 ℃, adding deionized water, stirring for 1.5-2 hours, distilling under reduced pressure to remove tetrahydrofuran, and adding sodium hydroxide solution for neutralization; diluting with water, and vacuum drying to obtain the final product.
More preferably, the raw materials of the additive comprise the following materials: 3 to 3.2 parts of phosphorus oxychloride, 3.8 to 4.2 parts of polyethylene glycol and 4.1 to 4.3 parts of mercapto-tetra-polyethylene glycol.
More optimally, in the step 1, the PP film is subjected to surface modification; the specific process is as follows: after the PP film is irradiated, the PP film is quickly placed in glycidyl methacrylate-methanol solution, the pressure is set to be 0.15-0.25 Mpa, the temperature is 35-45 ℃, the PP film is immersed for 60-90 minutes, and the PP film is obtained after washing and drying; and stacking the pretreated aluminum foils on two sides of the modified PP film, and compositing at 150-165 ℃ to obtain the PP composite aluminum foil core layer.
Compared with the prior art, the invention has the following beneficial effects:
(1) In the scheme, the weight of the aluminum foil aluminum plastic film is further improved, and the density of the aluminum foil is 2.71g/cm 2 The PP film had a density of 0.091g/cm 2 The lighter PP film is used for replacing, 1/3 weight of the aluminum foil matrix is reduced, so that the weight of the aluminum plastic film is reduced under the same area, and the weight of the whole battery shell is reduced. In addition, the aluminum foil is O-state soft aluminum foil, has good rust prevention, water resistance and heat preservation effects, and has good plasticity.
(2) In the scheme, in order to improve cold stamping forming performance of the aluminum plastic film, a PP composite aluminum foil core layer is introduced into the aluminum plastic film, and because the PP film is soft in material and has good toughness, deep stamping performance can be improved, cracking of the aluminum plastic film in the forming process is avoided, defective rate is reduced, and production efficiency is improved. The specific description is as follows: if the thickness of the PP composite aluminum foil core layer is released to the requirement, the cost and the deep drawing performance can be influenced.
(3) In the scheme, the PP composite aluminum foil core layer is of a sandwich structure, so that the PP composite aluminum foil core layer has good electrical insulation property, and effectively blocks an external environment conductive medium.
(4) In the scheme, in order to increase the interface effect between the PP film and the aluminum foil in the PP composite aluminum foil core layer and improve the performance, the aluminum foil and the PP film are further pretreated and modified in the scheme.
Wherein, the aluminum foil is pretreated by molybdate, and the molybdenum treatment can improve the corrosion resistance of the aluminum foil, and can improve the surface roughness of the aluminum foil, thereby increasing the interface effect with the PP film, increasing the glass strength and improving the packaging strength of the aluminum foil aluminum plastic film. However, the aluminum foil surface modification can promote the absorption of hydrogen due to the high reactivity of aluminum and water, and has the problem of hydrogen embrittlement, and an additive (the reaction equation is shown in figure 2) is prepared in the introduction scheme, and an ether bond and a hydrophilic group in polyethylene glycol are utilized to form a hydrogen bond with water molecules, so that a netlike adsorption film is formed on the metal surface, and the hydrogen embrittlement phenomenon is effectively avoided. On the other hand, because the additive contains sulfhydryl, the additive can react and crosslink with a modified PP film (epoxy groups are grafted on the surface of glycidyl methacrylate GMA) at a lower temperature, and the concentrated stress of the crosslinking of hydroxyl groups and epoxy groups at a high temperature is reduced by using the sequence before and after crosslinking, so that the performance is enhanced; simultaneously, the two kinds of crosslinking effectively improve the chemical interaction between layers and improve the bonding strength.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic structural view of a composite aluminum foil aluminum plastic film;
FIG. 2 is a reaction equation for an additive;
the diagram is: 1-a heat-resistant resin film; 2-an outer adhesive layer; 3-PP composite aluminum foil core layer; 4-a thermoplastic resin film; 5-an inner adhesive layer.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the manufacturers of all the raw materials according to the present invention include, without any particular limitation: in the following examples, phosphorus oxychloride has a CAS number of 10025-87-3; polyethylene glycol is polyethylene glycol-400, provided by Jinan Jin chemical industry; the CAS number of the sulfhydryl tetraethylene glycol is 90952-27-5, the model is BK03481, and the sulfhydryl tetraethylene glycol is provided by the Karun pharmaceutical industry of Wuhan Boren; the model numbers of the external binder and the internal binder are PVDF-5140 and are provided by plastic cement; the heat-resistant resin film was of the type CM1011G45, supplied by Toli Japan; the thermoplastic resin film was designated as TORAYCON1164G-30, available from Torili, japan.
The preparation method of the additive comprises the following steps: 3.1g of phosphorus oxychloride is added into a reaction kettle, and a polyethylene glycol-tetrahydrofuran mixed solution (4 g of polyethylene glycol, 20g of tetrahydrofuran) is added dropwise at the temperature of 5 ℃ for reaction at constant temperature for 6 hours; dripping a mercapto-tetra-polyethylene glycol-tetrahydrofuran mixed solution (4.2 g of mercapto-tetra-polyethylene glycol and 20g of tetrahydrofuran), heating to 30 ℃, and reacting for 4 hours; heating to 60 ℃, adding deionized water, stirring for 2 hours, distilling under reduced pressure to remove tetrahydrofuran, and adding 30wt% sodium hydroxide solution to neutralize to pH=7.2; diluting with water to solid content of 40%, and vacuum drying to obtain the final product.
Example 1: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps:
step 1: two 10 μm thick aluminum foils (model 8079 soft aluminum foils supplied by the eastern aluminum industry of japan) were laminated on both sides of a 10 μm thick PP film (supplied by the eastern de of japan), and were compounded at 160 ℃ to obtain a PP composite aluminum foil core layer;
step 2: coating an external binder on one side of a PP composite aluminum foil core layer in a gravure coating mode, wherein the coating amount is 3g/m 2 Drying at 85 ℃ for 2 minutes; laminating a heat-resistant resin film with the thickness of 15 mu m on one side of an adhesive outside the PP composite aluminum foil core layer, and performing heat lamination at the temperature of 95 ℃; coating the other side of the PP composite aluminum foil core layer with an internal binder by adopting a gravure coater, wherein the coating weight is 2g/m 2 Drying at 85 ℃ for 2 minutes, then laminating a thermoplastic resin film with the thickness of 20 mu m on one side of an adhesive in the PP composite aluminum foil core layer, and performing heat lamination at 95 ℃; obtaining a composite film;
step 3: curing the composite film at 55 ℃ for 6 days to obtain the composite aluminum foil aluminum plastic film.
Example 2: the preparation method of the composite aluminum foil aluminum plastic film is characterized in that: the PP film used had a thickness of 13. Mu.m; the rest of the procedure is the same as in example 1.
Example 3: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps: the difference is that: the PP film used had a thickness of 13 μm and the aluminum foil used had a thickness of 12 μm; the rest of the procedure is the same as in example 1.
Example 4: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps: the difference is that: the PP film used had a thickness of 14 μm and the aluminum foil used had a thickness of 13 μm; the rest of the procedure is the same as in example 1.
Example 5: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps:
step 1: two 13 μm thick aluminum foils (model 8079O-state soft aluminum foil supplied by the Toyo aluminum industry of Japan) are stacked on two sides of a 14 μm thick PP film (supplied by the Toray of Japan), and the PP film is melted at 160 ℃ to be composited with the inner and outer aluminum foils to obtain a PP composite aluminum foil core layer;
step 2: coating an external binder on one side of a PP composite aluminum foil core layer in a gravure coating mode, wherein the coating amount is 4g/m 2 Drying at 90 ℃ for 2 minutes; laminating a heat-resistant resin film with the thickness of 20 mu m on one side of an adhesive outside the PP composite aluminum foil core layer, and performing heat lamination at the temperature of 100 ℃; PP composite aluminum foilThe other side of the core layer adopts a gravure coater to coat the internal binder, and the coating weight is 3g/m 2 Drying at 90 ℃ for 2 minutes, then laminating a thermoplastic resin film with the thickness of 70 mu m on one side of an adhesive in the PP composite aluminum foil core layer, and performing heat lamination at 100 ℃; obtaining a composite film;
step 3: curing the composite film at 55 ℃ for 6 days to obtain the composite aluminum foil aluminum plastic film.
Example 6: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps:
step 1: (1) Placing aluminum foil (model 8079O-state soft aluminum foil supplied by the Nippon aluminum industry) with thickness of 10 μm in acetone, degreasing at 40deg.C for 10 min, soaking in molybdate solution at 45deg.C for 90 s, washing with water, and drying to obtain pretreated aluminum foil; wherein the raw materials of the molybdate solution comprise the following components: 60g/L phosphoric acid, 6g/L ammonium molybdate, 2g/L sodium fluoride, 4g/L tartaric acid and 2.5g/L additive.
(2) Carrying out electron irradiation on a 10 mu m thick PP film (provided by Torile in Japan) at 240kV, wherein the electron beam current is 4.0mA, the irradiation energy is 101kGy, rapidly placing the PP film in 40wt% glycidyl methacrylate-methanol solution after irradiation, setting the pressure to 0.2Mpa, the temperature to 40 ℃, dipping for 90 minutes, washing and drying to obtain a modified PP film;
(3) Two pieces of modified aluminum foils are overlapped on two sides of a modified PP film, the modified PP film is dried for 2 minutes at 120 ℃, and the PP film is melted at 160 ℃ to be compounded with the inner and outer aluminum foils, so that a PP composite aluminum foil core layer is obtained;
step 2: coating an external binder on one side of a PP composite aluminum foil core layer in a gravure coating mode, wherein the coating amount is 3g/m 2 Drying at 85 ℃ for 2 minutes; laminating a heat-resistant resin film with the thickness of 15 mu m on one side of an adhesive outside the PP composite aluminum foil core layer, and performing heat lamination at the temperature of 95 ℃; coating the other side of the PP composite aluminum foil core layer with an internal binder by adopting a gravure coater, wherein the coating weight is 2g/m 2 Drying at 85 ℃ for 2 minutes, then laminating a thermoplastic resin film with the thickness of 20 mu m on one side of an adhesive in the PP composite aluminum foil core layer, and performing heat lamination at 95 ℃; obtaining a composite film;
step 3: curing the composite film at 55 ℃ for 6 days to obtain the composite aluminum foil aluminum plastic film.
Comparative example 1: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps: the difference is that: the PP composite aluminum foil core layer is a single-layer aluminum foil core layer; the rest of the procedure is the same as in example 1.
Comparative example 2: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps: the difference is that: the additive is polyethylene glycol-400 directly; the rest of the procedure is the same as in example 6.
Comparative example 3: a preparation method of a composite aluminum foil aluminum plastic film comprises the following steps: the difference is that: alkali liquor treatment is used for the aluminum foil, and specifically: placing aluminum foil (model 8079O-state soft aluminum foil supplied by the Nippon aluminum industry) with thickness of 10 μm in acetone, degreasing at 40deg.C for 10 min, soaking in alkaline solution at 45deg.C for 90 s, washing with water, and drying to obtain pretreated aluminum foil; wherein the raw materials of the alkali liquor comprise the following components: 10g/L sodium silicate, 20g/L sodium phosphate, 10g/L sodium fluoride, 10g/L sodium carbonate; the remainder was the same as in example 6.
Performance test of examples and comparative examples: (1) test of package peel strength: drawing a rectangular spline with the length of 60mm multiplied by 40mm, folding the spline, sealing two sides of the spline by using a 185 ℃ sealing knife, wherein the sealing time is 3 seconds, and the width of a sealing head is 2mm; 5g of electrolyte was poured in, and the package was left to stand in an oven at 80℃for 2 days, and the peel strength of the package was measured using a tensile machine at a peel rate of 300mm/min. (2) limit forming depth test: and (3) respectively testing whether pinholes or damages occur after the aluminum plastic film is molded at depths of 4.5mm, 5.0mm, 5.5mm, 6.0mm and 6.5mm by adopting a shell punching machine, respectively testing 10 samples from small to large at each depth, judging that the molding requirement of the depth is met after all samples are intact, judging that the molding requirement of the depth is not met, and taking the maximum complaint of the achievement as the limit molding depth. The data obtained are shown in the following table:
conclusion: from the data in the above table, the data in examples 1 to 5 show that the molding depth and the package strength limit increase with the increase of the film thickness of the PP film and the aluminum foil film; the data of example 6 shows that pretreatment of aluminum foil can effectively improve the molding depth and the packaging strength. The data for example 1 and comparative example 1 show that: in the scheme, the light weight is effectively realized on the basis of effectively ensuring the packaging strength limit and the forming depth. The data for comparative examples 2-3 show that: the additive is polyethylene glycol-400, so that the interface effect is reduced, and the hydrogen embrittlement inhibition is reduced, thereby reducing the performance; whereas in comparative example 3, although alkali treatment may increase the surface roughness, alkali treatment may increase the surface defects, thereby degrading the performance.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A composite aluminum foil aluminum plastic film is characterized in that: the composite aluminum foil aluminum plastic film sequentially comprises an outer layer, a PP composite aluminum foil core layer (3) and an inner layer from top to bottom; the outer layer includes a heat-resistant resin film (1) and an outer adhesive layer (2); the inner layer comprises a thermoplastic resin film (5) and an inner adhesive layer (4); the PP composite aluminum foil core layer (3) sequentially comprises a PP film and aluminum foils arranged on two sides of the PP film; the aluminum foil is contacted with the outer adhesive layer (2) and the inner adhesive layer (4).
2. The aluminum-plastic composite film of claim 1, wherein: the heat-resistant resin film (1) comprises a nylon film; the outer adhesive layer (2) comprises at least one of acrylic resin, polyester resin and derivatives thereof; the thermoplastic resin film (5) comprises a polypropylene film; the raw materials of the inner bonding layer (4) comprise one or more of polypropylene resin and derivatives thereof; the aluminum foil is O-state soft aluminum foil.
3. The aluminum-plastic composite film of claim 1, wherein: the thickness of the heat-resistant resin film (1) is 15-30 mu m; the coating weight of the outer adhesive layer (2) is 3-4 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The thickness of the thermoplastic resin film (5) is 10-13 mu m; the coating weight of the inner binder (4) is 2-3 g/m 2 。
4. The aluminum-plastic composite film of claim 1, wherein: the thickness of the PP composite aluminum foil core layer (3) is 30-40 mu m; wherein the thickness of the aluminum foil is 10-13 mu m; the thickness of the PP film is 10-14 mu m.
5. The method for preparing the composite aluminum foil aluminum plastic film according to any one of claims 1 to 4, which is characterized in that: the method comprises the following steps:
step 1: two aluminum foils are overlapped on two sides of the PP film and are compounded at 150-165 ℃ to obtain a PP composite aluminum foil core layer;
step 2: coating an external binder on one side of a PP composite aluminum foil core layer, stacking a heat-resistant resin film, and performing heat lamination at 85-110 ℃ to form an external layer; coating an inner binder on the other side of the PP composite aluminum foil core layer, overlapping a thermoplastic resin film, and performing thermal lamination at the temperature of 85-110 ℃ to form an inner layer; obtaining a composite film;
step 3: and (3) placing the composite film obtained in the step (2) at 55-60 ℃ and curing for 5-7 days to obtain the composite aluminum foil aluminum plastic film.
6. The preparation method of the composite aluminum foil aluminum plastic film according to claim 5, which is characterized in that: in the step 1, the aluminum foil is pretreated; the specific process is as follows: degreasing an aluminum foil in acetone, then placing the aluminum foil in a molybdate solution, soaking the aluminum foil in the molybdate solution for 60 to 120 seconds at the temperature of 40 to 50 ℃, washing the aluminum foil with water, and drying the aluminum foil to obtain a pretreated aluminum foil; overlapping the pretreated aluminum foils on two sides of the PP film, and compounding at 150-165 ℃ to obtain a PP composite aluminum foil core layer;
wherein the raw materials of the molybdate solution comprise the following components: 55-60 g/L phosphoric acid, 5-7 g/L ammonium molybdate, 2-3 g/L sodium fluoride, 4-5 g/L tartaric acid and 2-3 g/L additive.
7. The method for preparing the aluminum-plastic composite film of the aluminum foil, which is characterized in that: the preparation method of the additive comprises the following steps: adding phosphorus oxychloride into a reaction kettle, dropwise adding a polyethylene glycol-tetrahydrofuran mixed solution at the temperature of 5-10 ℃ and reacting for 5-6 hours at constant temperature; dripping mercapto tetra polyethylene glycol-tetrahydrofuran mixed solution, heating to 25-30 ℃ and reacting for 4-4.5 hours; heating to 60-65 ℃, adding deionized water, stirring for 1.5-2 hours, distilling under reduced pressure to remove tetrahydrofuran, and adding sodium hydroxide solution for neutralization; diluting with water, and vacuum drying to obtain the final product.
8. The method for preparing the aluminum-plastic composite film of the aluminum foil, which is characterized in that: the raw materials of the additive comprise the following materials: 3 to 3.2 parts of phosphorus oxychloride, 3.8 to 4.2 parts of polyethylene glycol and 4.1 to 4.3 parts of mercapto-tetra-polyethylene glycol.
9. The method for preparing the aluminum-plastic composite film of the aluminum foil, which is characterized in that: in the step 1, the PP film is subjected to surface modification; the specific process is as follows: after the PP film is irradiated, the PP film is quickly placed in glycidyl methacrylate-methanol solution, the pressure is set to be 0.15-0.25 Mpa, the temperature is 35-45 ℃, the PP film is immersed for 60-90 minutes, and the PP film is obtained after washing and drying; and stacking the pretreated aluminum foils on two sides of the modified PP film, and compositing at 150-165 ℃ to obtain the PP composite aluminum foil core layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310946314.XA CN117002108A (en) | 2023-07-31 | 2023-07-31 | Composite aluminum foil aluminum plastic film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310946314.XA CN117002108A (en) | 2023-07-31 | 2023-07-31 | Composite aluminum foil aluminum plastic film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117002108A true CN117002108A (en) | 2023-11-07 |
Family
ID=88561247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310946314.XA Pending CN117002108A (en) | 2023-07-31 | 2023-07-31 | Composite aluminum foil aluminum plastic film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117002108A (en) |
-
2023
- 2023-07-31 CN CN202310946314.XA patent/CN117002108A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2015507828A (en) | Aluminum pouch film for secondary battery, packaging material including the same, secondary battery including the same, and method for producing aluminum pouch film for secondary battery | |
| EP3267506B1 (en) | Outer packaging material for electricity storage device and electricity storage device using same | |
| WO2014185605A1 (en) | Aluminum pouch film for secondary battery, packaging material comprising same, secondary battery comprising same, and manufacturing method therefor | |
| KR20130081445A (en) | Aluminium pouch film for the secondary battery, the pack containing the same and the secondary battery containing the same | |
| CN1581531A (en) | Package mateerial for cell housing and cell housing formed thereby | |
| KR20140111587A (en) | Laminate for battery packages | |
| KR101485523B1 (en) | Aluminium pouch film for the Secondary Battery, the Pack containing the same, the Secondary Battery containing the same and the manufacturing method of the same | |
| TWI759309B (en) | Exterior material for power storage device, method for producing the same, and power storage device | |
| JP2013101765A (en) | External facing material for power storage device | |
| CN102859744A (en) | Outer packaging material for battery or capacitor, and process for production thereof | |
| JP5316552B2 (en) | Battery laminated film and battery container using the same | |
| CN106159124A (en) | Electric energy storage device exterior member and the electric energy storage device employing this exterior member | |
| CN110744904A (en) | Elastic aluminum plastic film for lithium battery flexible package and preparation method | |
| CN112009067A (en) | Dry compounding process of composite aluminum plastic film for power battery | |
| CN113782880A (en) | Corrosion-resistant lithium battery aluminum plastic film and preparation method thereof | |
| KR20170142625A (en) | Aluminium pouch film for secondary battery and the manufacturing method of the same | |
| KR101897667B1 (en) | Film For Secondary Cell Pouch and Method for Manufacturing the Same | |
| JP2017157432A (en) | Exterior packaging material for power storage device and power storage device | |
| CN109792005A (en) | Packaging material and its manufacturing method | |
| CN110832662B (en) | Material for packaging electricity storage device and electricity storage device using same | |
| CN110370738A (en) | A kind of lithium ion battery flexible packaging film | |
| CN109233715A (en) | The double-component epoxy adhesive and preparation method thereof of resistance to lithium-ion battery electrolytes | |
| CN117002108A (en) | Composite aluminum foil aluminum plastic film and preparation method thereof | |
| US11205814B2 (en) | Power storage device packaging material and power storage device using the packaging material | |
| KR101454417B1 (en) | Aluminium pouch film for the Secondary Battery, the Pack containing the same, the Secondary Battery containing the same and the manufacturing method of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |