CN107017360B - Lithium battery is packed for the preparation method of aluminum plastic film - Google Patents
Lithium battery is packed for the preparation method of aluminum plastic film Download PDFInfo
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- CN107017360B CN107017360B CN201710257402.3A CN201710257402A CN107017360B CN 107017360 B CN107017360 B CN 107017360B CN 201710257402 A CN201710257402 A CN 201710257402A CN 107017360 B CN107017360 B CN 107017360B
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- plastic film
- acrylic acid
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 79
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000002985 plastic film Substances 0.000 title claims abstract description 73
- 229920006255 plastic film Polymers 0.000 title claims abstract description 73
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000005030 aluminium foil Substances 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 238000005266 casting Methods 0.000 claims abstract description 16
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 12
- -1 polyethylene naphthalate Polymers 0.000 claims description 52
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 34
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 25
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 23
- 239000004743 Polypropylene Substances 0.000 claims description 21
- 229920001155 polypropylene Polymers 0.000 claims description 21
- 239000004698 Polyethylene Substances 0.000 claims description 20
- 229920000573 polyethylene Polymers 0.000 claims description 20
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 19
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims description 15
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 11
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 10
- 229920005672 polyolefin resin Polymers 0.000 claims description 10
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 8
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004711 α-olefin Substances 0.000 claims description 8
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims description 6
- 229920002292 Nylon 6 Polymers 0.000 claims description 6
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229920001519 homopolymer Polymers 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 4
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical group CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 claims description 4
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000299 Nylon 12 Polymers 0.000 claims description 2
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 2
- 229920000572 Nylon 6/12 Polymers 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000003851 corona treatment Methods 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 150000005690 diesters Chemical class 0.000 claims description 2
- 229920006226 ethylene-acrylic acid Polymers 0.000 claims description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims 2
- 239000000155 melt Substances 0.000 claims 1
- 239000000088 plastic resin Substances 0.000 claims 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 115
- 238000007789 sealing Methods 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 239000011229 interlayer Substances 0.000 description 9
- 239000011241 protective layer Substances 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 229920005629 polypropylene homopolymer Polymers 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 210000003684 theca cell Anatomy 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- RYPKRALMXUUNKS-UHFFFAOYSA-N 2-Hexene Natural products CCCC=CC RYPKRALMXUUNKS-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000005043 ethylene-methyl acrylate Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004148 curcumin Substances 0.000 description 1
- WQPDQJCBHQPNCZ-UHFFFAOYSA-N cyclohexa-2,4-dien-1-one Chemical compound O=C1CC=CC=C1 WQPDQJCBHQPNCZ-UHFFFAOYSA-N 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses the preparation method that a kind of lithium battery is packed for aluminum plastic film, includes the following steps: that screw extruder coextrusion casting film forming is added in heat-resistant resin and the first binding material by (1), obtain outer layer；(2) screw extruder coextrusion casting film forming is added in thermoplastic resin and the second binding material, obtains internal layer；The fusing point of first binding material is greater than the fusing point of the second binding material；(3) by outer layer and aluminium foil layer stackup, heating, pressurization make outer layer and aluminium foil layer pre-bonded, obtain middle layer；(4) middle layer and internal layer are laminated, heating, pressurization make middle layer and internal layer pre-bonded, obtain the aluminum plastic film of pre-bonded；(5) further progress heats, and obtains the aluminum plastic film.The present invention uses the resin of binding property of low melting point, and outer layer and internal layer are bonded on aluminium foil layer at a lower temperature, do not need to be heated to excessive temperature, reduces the excessively high performance loss caused by aluminium foil of temperature, and then improve the comprehensive performance of aluminum plastic film.
Description
Technical field
The present invention relates to the preparation methods that a kind of lithium battery is packed for aluminum plastic film, are related to lithium battery and are packed for plastic-aluminum membrane technology
Field.
Background technique
In recent years, gradually using up with non-renewable energy resources such as petroleum, coals generates the lithium of power using chemical reaction
Battery has obtained significant progress.But traditional packaging material for lithium battery uses the steel construction of hard, lithium battery interior hair
Raw violent chemical reaction can generate high temperature and pressure, thus lithium battery explosion accident easily occurs, and it is hidden to cause greatly safety
Suffer from.With the development of polymer Li-ion battery technology, original steel construction is replaced using plastic-aluminum packaging film (also known as aluminum plastic film)
Packaging material, can effectively prevent as high temperature and pressure that the violent chemical reaction of inside battery generates and caused by explosion accident,
Improve the safety of lithium ion battery.
Currently, the lithium battery in domestic and international market is packed for the ridge that aluminum plastic film is formd production and technology by Japanese firm
Disconnected, in terms of the country also has many enterprises to start progress aluminum plastic film in recent years development work, though just effective performance is not still good enough.
Aluminum plastic film currently on the market is mainly made of multilayered structure: intermediate aluminium foil layer, in aluminium foil layer two sides distributing binder oxidant layer, outer membrane
Layer and adhesive phase, theca interna.Wherein, theca externa mainly selects the polyester or polyamide of heat resistance, and theca externa is in
Between the bonding mode of aluminium foil layer be mainly that dry type is compound, the bonding mode of theca interna and intermediate aluminium foil layer mainly have dry type compound and
Thermal method is compound.
Wherein, so-called dry type it is compound be exactly by adhesive coateds such as polyurethane, epoxy resin, acrylic acid on the surface of the material,
Contact laminating is bonded.Compound thermal method is exactly to directly extrude the binder resin of hot melt between aluminium foil layer and theca interna, benefit
The two is bonded together with the viscosity of hot melt adhesive resin.However, there are the following problems for above-mentioned 2 kinds of methods: dry type is compound
Contain a large amount of organic solvents in the adhesive that method uses, highly volatile uses to cause environmental pollution in lithium battery
Once electrolyte penetrates inner layer material in the process, the electrolyte of deep-etching will decompose adhesive, and then corrosive aluminum foil and outer
Layer material causes lithium battery to leak.And thermal method more membrane material guide devices of compound needs, it also needs pre- early period by complicated film
Thermal process, complex process not only increase production cost, also extend the production cycle.
In view of the above technical problems, there is hot paste and close technique.For example, Chinese invention patent application CN103165831A is public
A kind of Novel aluminum plastic film for lithium battery, including protective layer, chemical treatment layer are opened, intermediate aluminium foil, chemical treatment layerAnd heat-sealing
Layer, protective layer are the films made of polyamide and maleic anhydride modified polypropylene or maleic anhydride modified polyethylene coextrusion casting,
Hot sealing layer is made by maleic anhydride modified polypropylene or maleic anhydride modified polyethylene and polypropylene or polyethylene coextrusion casting
It forms, chemical treatment layer is chemically treated and is formed to intermediate aluminium foil surface using the mixed solution of chromic salts, acid, fluoride
Compact metal oxide film layer.Preparation method is: protective layer, chemically treated intermediate aluminium foil layer and hot sealing layer are passed through
Hot paste compounding machine one-pass molding hot paste is compound；Specific: the intermediate aluminium foil of chemically treated mistake is preheated to 190 ~ 210 DEG C, passes through
Protective layer and hot sealing layer are pasted the surfaces externally and internally of the multiple intermediate aluminium foil in chemically treated mistake by pressure roller simultaneously, using a thermal protection
Baking oven winding obtains Novel aluminum plastic film for lithium battery.
However, there are the following problems for the above method: (1) since before hot paste is compound, intermediate aluminium foil layer needs to preheat
To higher temperature (need to be preheated to 190 ~ 210 DEG C in advance), and higher temperature will cause the performance impairment of outer layer and aluminium foil, finally make
Decline at plastic-aluminum film properties；(2) protective layer, chemical treatment layer, intermediate aluminium foil, chemical treatment layerAnd hot sealing layer, it is above-mentioned each
Layer is when being laminated, and interlayer has an air residual, and when heating, binding resin is in the higher hot melt state of concentration, and air is easily residual
It stays in interlayer generation bubble and further decreases the performance of aluminum plastic film to cause the decline of adhesion strength.
Therefore, the preparation method that a kind of lithium battery is packed for aluminum plastic film is developed, is caused damages to avoid to aluminium foil performance, and
Interlayer bubble can be excluded, the adhesion strength of aluminum plastic film is improved, improves the performance of aluminum plastic film, it is clear that there is positive realistic meaning.
Summary of the invention
Goal of the invention of the invention is to provide the preparation method that a kind of lithium battery is packed for aluminum plastic film.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of lithium battery is packed for the system of aluminum plastic film
Preparation Method includes the following steps:
(1) screw extruder coextrusion casting film forming is added in heat-resistant resin and the first binding material, obtains outer layer；
The heat-resistant resin is selected from nylon 6, nylon66 fiber, nylon 12, nylon 610, nylon 612, nylon 1010, gathers to benzene
One or more of dioctyl phthalate second diester, polyethylene naphthalate；The fusing point of the heat-resistant resin is 165 ~ 280 DEG C；
First binding material is selected from ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-propylene
Sour methyl terpolymer, maleic anhydride or acrylic acid modified polyethylene, maleic anhydride or acrylic acid modified polypropylene, maleic acid
Acid anhydride or acrylic acid modified ethylene-vinyl acetate copolymer, maleic anhydride or acrylic acid modified ethylene-acrylic acid copolymer
One or more of object, maleic anhydride or acrylic acid modified ethylene-methyl acrylate copolymer；First binding material
Fusing point be 70 ~ 140 DEG C；
The fusing point of the heat-resistant resin is greater than the fusing point of first binding material；
(2) screw extruder coextrusion casting film forming is added in thermoplastic resin and the second binding material, obtains internal layer；
The thermoplastic resin is selected from one or more of polyethylene or its copolymer, polypropylene or its copolymer；Institute
The fusing point for stating thermoplastic resin is 70 ~ 165 DEG C；
Second binding material is selected from ethylene-vinyl acetate copolymer or its acrylic acid modified object, ethylene-acrylic acid
Copolymer or its acrylic acid modified object, ethylene-methyl acrylate copolymer or its acrylic acid modified object, ethylene-vinyl acetate
Ethylene-acrylic acid copolymer, the ethylene-vinyl acetate of copolymer-modified polyolefin resin, ethylene-vinyl acetate modification
One of copolymer-modified ethylene-methyl acrylate copolymer, maleic anhydride or acrylic acid modified polyolefin resin or
It is several；Wherein, the polyolefin resin refers to the homopolymer or copolymer of alpha-olefin；The alpha-olefin is selected from ethylene, propylene, 1-
One or more of butylene, 1- amylene, 1- hexene, 1- octene, 4-methyl-1-pentene；The fusing point of second binding material
It is 60 ~ 100 DEG C；
The fusing point of the thermoplastic resin is greater than the fusing point of second binding material；
The fusing point of first binding material is greater than the fusing point of second binding material；
(3) by the outer layer of step (1) and aluminium foil layer stackup, heating, pressurization, heating temperature T1 is 100 ~ 155 DEG C, is made outer
Layer and aluminium foil layer pre-bonded, obtain middle layer；The first binding material in outer layer is towards aluminium foil surface；
(4) internal layer of above-mentioned middle layer and step (2) is laminated, heating, pressurization, heating temperature T2 are 80 ~ 155 DEG C, are made
Middle layer and internal layer pre-bonded, obtain the aluminum plastic film of pre-bonded；The second binding material in internal layer is towards aluminium foil surface；
Heating temperature T1 in the step (3) is greater than the heating temperature T2 in the step (4)；
(5) by the heating of aluminum plastic film further progress, the pressurization of above-mentioned pre-bonded, heating temperature T3 makes the aluminium of pre-bonded
Each layer in plastic film really bonds；
, traction, coiling process cooling using postorder, can be obtained the aluminum plastic film；
Heating temperature T3 in the step (5) is greater than the heating temperature T1 in the step (3), and the heat resistance tree
The fusing point of the fusing point of rouge and the thermoplastic resin is all larger than heating temperature T3, and the fusing point of first binding material and described
The fusing point of second binding material is respectively less than heating temperature T3.
Above, the step (3), (4) and heating, pressurization in (5), can close equipment using existing hot paste.
The fusing point of first binding material is greater than the fusing point of second binding material；This is in order in internal layer and centre
When layer bonding, heating not will cause the first binding material and melt again, ensure that the preferable processability of aluminum plastic film.
In the step (3), heating temperature T1 should be slightly less than or close to the first binding material fusing point, but cannot
Certain mobility is made it have its purpose is to soften the first binding material more than the fusing point of the first binding material,
To squeeze out the bubble between outer layer and aluminium foil, make outer layer and aluminium foil layer pre-bonded.Heating temperature T2 in the step (4)
Be in this way, heating temperature T2 should be slightly less than or close to the second binding material fusing point, but no more than second bonding material
The fusing point of material.
But for heating temperature T3, the fusing point and second binding material of the first binding material must be simultaneously greater than
Fusing point, so that the first binding material and the second binding material melt simultaneously, so that each layer in aluminum plastic film be made really to bond.
In the step (1), the fusing point of heat-resistant resin is 165 ~ 280 DEG C；For example, can be 166 DEG C, 167 DEG C, 168
℃、169℃、170℃、175℃、180℃、185℃、190℃、195℃、200℃、210℃、220℃、230℃、240℃、
250 DEG C, 260 DEG C, 270 DEG C, 275 DEG C etc..
In the step (1), the fusing point of first binding material is 70 ~ 140 DEG C；For example, can for 71 DEG C, 72 DEG C,
73℃、74℃、75℃、76℃、77℃、78℃、79℃、80℃、85℃、90℃、95℃、100℃、105℃、110℃、115
DEG C, 120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C, 138 DEG C etc..
In the step (2), the fusing point of the thermoplastic resin is 70 ~ 165 DEG C；For example, can be 71 DEG C, 72 DEG C, 73
℃、74℃、75℃、76℃、77℃、78℃、79℃、80℃、85℃、90℃、95℃、100℃、105℃、110℃、115℃、
120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C, 140 DEG C, 145 DEG C, 150 DEG C, 155 DEG C, 160 DEG C, 163 DEG C etc..
In the step (2), the fusing point of second binding material is 60 ~ 100 DEG C；For example, can for 61 DEG C, 62 DEG C,
63℃、64℃、65℃、66℃、67℃、68℃、69℃、70℃、71℃、72℃、73℃、74℃、75℃、76℃、77℃、78
DEG C, 79 DEG C, 80 DEG C, 85 DEG C, 90 DEG C, 95 DEG C, 98 DEG C, 99 DEG C etc..
In the step (3), the heating temperature T1 be 100 ~ 155 DEG C, for example, can for 101 DEG C, 102 DEG C, 103 DEG C,
105℃、108℃、110℃、115℃、118℃、120℃、125℃、130℃、135℃、140℃、145℃、150℃、151
DEG C, 152 DEG C, 153 DEG C, 154 DEG C etc..
In the step (4), the heating temperature T2 is 80 ~ 155 DEG C；For example, can be 81 DEG C, 82 DEG C, 83 DEG C, 84
℃、85℃、86℃、87℃、88℃、89℃、90℃、95℃、100℃、101℃、102℃、103℃、105℃、108℃、110
℃、115℃、118℃、120℃、125℃、130℃、135℃、140℃、145℃、150℃、151℃、152℃、153℃、
154 DEG C etc..
In the step (5), the heating temperature T3 is 120 ~ 155 DEG C；For example, can for 121 DEG C, 122 DEG C, 123 DEG C,
125 DEG C, 128 DEG C, 130 DEG C, 135 DEG C, 140 DEG C, 145 DEG C, 150 DEG C, 151 DEG C, 152 DEG C, 153 DEG C, 154 DEG C etc..
In above-mentioned technical proposal, outer layer with a thickness of 20 ~ 60 microns in the step (1)；Internal layer in the step (2)
With a thickness of 20 ~ 60 microns.The thickness of outer layer and internal layer can be identical or different, can be respectively 25 microns, 30 microns, it is 35 micro-
Rice, 40 microns, 45 microns, 50 microns, 55 microns, 58 microns etc..
Preferably, the first binding material is selected from ethylene-acrylic acid copolymer, ethylene-methyl acrylate in the step (1)
One of copolymer, maleic anhydride or acrylic acid modified polyethylene, maleic anhydride or acrylic acid modified polypropylene are several
Kind；
The fusing point of first binding material is 80 ~ 100 DEG C.
Preferably, the second binding material is selected from ethylene-acrylic acid copolymer, ethylene-methyl acrylate in the step (2)
One or more of copolymer maleic anhydride or acrylic acid modified polyolefin resin；Wherein, the polyolefin resin refers to
The homopolymer or copolymer of alpha-olefin；The alpha-olefin is selected from ethylene, propylene, 1- butylene, 1- amylene, 1- hexene, 1- octene, 4-
One or more of Methyl-1-pentene；
The fusing point of second binding material is 80 ~ 90 DEG C.
In above-mentioned technical proposal, the aluminium foil layer is also carrying out preceding processing using preceding,
The pre-treatment is cleaning treatment, in silane coupling agent or titanate coupling agent priming coat process, sided corona treatment
It is one or more of.
In above-mentioned technical proposal, the aluminium foil layer is soft state high-mouldability aluminium foil layer, with a thickness of 30 ~ 70 microns.The aluminium
Foil has good ductility and mechanical property.
Preferably, the heating temperature T3 in the step (5) is 120 ~ 155 DEG C.It is further preferred that heating temperature T3 is
130~150℃。
The present invention is claimed lithium battery prepared by the above method simultaneously and is packed for aluminum plastic film.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1. the present invention devises the preparation method that the new lithium battery of one kind is packed for aluminum plastic film, using the adhesiveness of low melting point
Outer layer and internal layer are bonded on aluminium foil layer by resin at a lower temperature, do not need to be heated to excessive temperature, reduce temperature mistake
Height performance loss caused by aluminium foil, and then improve the comprehensive performance of aluminum plastic film；And there is better appearance, corrugationless is gentle
Bubble；
2, present invention employs pre-bonded techniques, first by outer layer and aluminium foil layer pre-bonded, obtain middle layer, then will be intermediate
Layer and internal layer pre-bonded, obtain the aluminum plastic film of pre-bonded, and last another step is heated, pressurizeed, and make in the aluminum plastic film of pre-bonded
Each layer really bond；To effectively eliminate the air remained between each layer, interlayer is come into full contact with, aluminum plastic film is improved
Adhesion strength, especially interlaminar strength；
3, preparation method of the invention is simple, it is easy to accomplish, production cost is low, is suitable for popularization and application.
Specific embodiment
The present invention will be further described below with reference to examples:
Embodiment one
A kind of new lithium battery is packed for the preparation method of aluminum plastic film, is made of following steps:
1, it selects the soft aluminium foil with a thickness of 40 microns to carry out degreasing annealing cleaning treatment, removes surface grease；Then use
Silane coupling agent handles aluminium foil；
2, nylon 6 and maleic anhydride modified polyethylene are separately added into twin-screw sheet extruder not by weight 3:1
Threaded middle coextrusion casting film forming, obtains outer layer；
3, block polypropylene, homopolypropylene, ethylene-vinyl acetate are separately added into three screw rods by weight 2:4:1
The not threaded middle coextrusion casting film forming of sheet extruder, obtains internal layer；
4, viscous by between heating roller and rubber rollers, being heated, being pressurizeed by outer layer and treated aluminium foil layer stackup
It closes, heating temperature is 135 DEG C, applies pressure, can exclude the air remained between outer layer and aluminium foil layer, and make outer layer and aluminium foil
Layer pre-bonded, wherein maleic anhydride modified polyethylene obtains middle layer towards aluminium foil side；
5, by internal layer and intermediate layer stackup, the wherein aluminium foil side of ethylene-vinyl acetate layer towards the middle, by heating
It between roller and rubber rollers, is heated, pressurized adhesion, heating temperature is 90 DEG C, applies pressure, can exclude to remain in internal layer in
Air between interbed, and make internal layer and middle layer pre-bonded, obtain the aluminum plastic film of pre-bonded；
6, by the aluminum plastic film of pre-bonded further across heating, pressurization, heating temperature is 150 DEG C, pressure 1.1MPa, this
When resin of binding property melt, kept for 10 seconds in a molten state or more, apply each interlayer of pressure and really bond, after being bonded
Aluminum plastic film；
7, by the aluminum plastic film after bonding, traction cooling by postorder, coiling process obtain finished product aluminum plastic film, with a thickness of 113
Micron, is denoted as S1.
Embodiment two
A kind of new lithium battery is packed for the preparation method of aluminum plastic film, is made of following steps:
1, it selects the soft aluminium foil with a thickness of 40 microns to carry out degreasing annealing cleaning treatment, removes surface grease；Then use
Silane coupling agent handles aluminium foil；
2, nylon 6 and nylon66 fiber are put into high-speed mixer by weight 1:1 and are stirred evenly；Maleic anhydride modified poly- second
Alkene and maleic anhydride modified polypropylene are also placed in high-speed mixer by weight 1:1 to stir evenly.The nylon 6 that will be stirred evenly
Twin-screw sheet material is separately added by weight 3:1 with nylon66 fiber, maleic anhydride modified polyethylene and maleic anhydride modified polypropylene
The not threaded middle coextrusion casting film forming of extruder, obtains outer layer；
3, block polypropylene, homopolypropylene, polyethylene are put into high-speed mixer by weight 1:1:1 and are stirred
It is even；Ethylene-vinyl acetate, ethylene-acrylic acid copolymer are put into high-speed mixer by weight 1:1 and stir evenly.It will stir
Uniform block polypropylene and homopolypropylene and polyethylene, ethylene-vinyl acetate and ethylene-acrylic acid copolymer are mixed by weight
The not threaded middle coextrusion casting film forming for being separately added into twin-screw sheet extruder than 3:1 is measured, internal layer is obtained；
4, viscous by between heating roller and rubber rollers, being heated, being pressurizeed by outer layer and treated aluminium foil layer stackup
It closes, heating temperature is 135 DEG C, applies pressure, can exclude the air remained between outer layer and aluminium foil layer, and make outer layer and aluminium foil
Layer pre-bonded, wherein maleic anhydride modified polyethylene and maleic anhydride modified polypropylene obtain middle layer towards aluminium foil side；
5, by internal layer and intermediate layer stackup, wherein ethylene-vinyl acetate and ethylene-acrylic acid copolymer layer towards the middle
Aluminium foil side, by being heated between heating roller and rubber rollers, pressurized adhesion, heating temperature is 90 DEG C, apply pressure,
The air remained between internal layer and middle layer can be excluded, and makes internal layer and middle layer pre-bonded, obtains the aluminum plastic film of pre-bonded；
6, by the aluminum plastic film of pre-bonded further across heating, pressurization, heating temperature is 150 DEG C, pressure 1.1MPa, this
When resin of binding property melt, kept for 10 seconds in a molten state or more, apply each interlayer of pressure and really bond, after being bonded
Aluminum plastic film；
7, by the aluminum plastic film after bonding, traction cooling by postorder, coiling process obtain finished product aluminum plastic film, with a thickness of 113
Micron, is denoted as S2.
Embodiment three
A kind of new lithium battery is packed for the preparation method of aluminum plastic film, is made of following steps:
1, it selects the soft aluminium foil with a thickness of 40 microns to carry out degreasing annealing cleaning treatment, removes surface grease；Then use
Silane coupling agent handles aluminium foil；
2, nylon66 fiber, ethylene terephthalate, maleic anhydride modified polyethylene are separately added into three by weight 3:3:1
The not threaded middle coextrusion casting film forming of screw rod sheet extruder, obtains outer layer；
3, block polypropylene, homopolypropylene are put into high-speed mixer by weight 1:1 and are stirred evenly；It will stir equal
Even block polypropylene and homopolypropylene, ethylene-vinyl acetate are separately added into twin-screw sheet extruder by weight 2:1
Not threaded middle coextrusion casting film forming, obtain internal layer；
4, viscous by between heating roller and rubber rollers, being heated, being pressurizeed by outer layer and treated aluminium foil layer stackup
It closes, heating temperature is 135 DEG C, applies pressure, can exclude the air remained between outer layer and aluminium foil layer, and make outer layer and aluminium foil
Layer pre-bonded, wherein maleic anhydride modified polyethylene obtains middle layer towards aluminium foil side；
5, by internal layer and intermediate layer stackup, the wherein aluminium foil side of ethylene-vinyl acetate layer towards the middle, by heating
It between roller and rubber rollers, is heated, pressurized adhesion, heating temperature is 90 DEG C, applies pressure, can exclude to remain in internal layer in
Air between interbed, and make internal layer and middle layer pre-bonded, obtain the aluminum plastic film of pre-bonded；
6, by the aluminum plastic film of pre-bonded further across heating, pressurization, heating temperature is 150 DEG C, pressure 1.1MPa, this
When resin of binding property melt, kept for 10 seconds in a molten state or more, apply each interlayer of pressure and really bond, after being bonded
Aluminum plastic film；
7, by the aluminum plastic film after bonding, traction cooling by postorder, coiling process obtain finished product aluminum plastic film, with a thickness of 113
Micron, is denoted as S3.
Comparative example one
1, chemical surface treatment is carried out to intermediate aluminium foil surface to the mixed solution of aluminium foil chromic salts, acid, fluoride, in
Between aluminium foil surface formed compact metal oxide film layer；
2, polyamide and maleic anhydride modified polypropylene resin coextrusion casting form a film, and obtain protective layer；
3, polypropylene and maleic anhydride modified polyethylene coextrusion casting form a film, and obtain hot sealing layer；
4, protective layer, the intermediate aluminium foil of chemically treated mistake and hot sealing layer are answered by heat posted compounding machine one-pass molding heat posted
It closes: chemically treated aluminium foil is preheated to 190-210 DEG C, pasted protective layer and hot sealing layer again through chemistry simultaneously by pressure roller
The surfaces externally and internally of processed intermediate aluminium foil, the heat posted face by maleic anhydride modified polyethylene of protective layer and hot sealing layer when patch is multiple
Towards the intermediate aluminium foil of chemically treated mistake, aluminum plastic film is obtained using a thermal protection baking oven winding, with a thickness of 113 microns,
It is denoted as P1.
Raw material employed in above-described embodiment and comparative example are as follows:
Heat-resistant resin: nylon 6 selects Dupont (73G20L, fusing point are 230 DEG C), nylon66 fiber to select Dupont
(70G33L, fusing point are 255 DEG C), polyethylene terephthalate select Dupont (FR530, fusing point are 260 DEG C), and nylon is drawn
It stretches film and is selected from South Korea Cologne company.
Resin of binding property: ethylene-vinyl acetate is selected from Dupont (460, fusing point is 88 DEG C), and ethylene-acrylic acid is total
Polymers selects Dow (5980I, fusing point are 77 DEG C), polyurethane adhesive to be selected from 3M company, maleic anhydride modified polypropylene
Dupont (E100, fusing point 134 are selected from selected from Dupont (P353, fusing point are 135 DEG C), maleic anhydride modified polyethylene
DEG C).
Aluminium foil: selected from Japanese Japan Aluminum 8021 or 8079.
Thermoplastic resin: block copolymerization polypropylene is selected from South Korea's Samsung (BI800, fusing point are 165 DEG C), random copolymerization poly- third
Alkene is selected from Singapore TPC company (FS5611, fusing point be 135 DEG C), homopolypropylene is selected from South Korea's Samsung (BI452, fusing point are
164 DEG C), polyethylene be selected from Dupont (E MB100D, fusing point be 134 DEG C).
Then, aluminum plastic film is packed for lithium battery made from the above method, be tested for the property, test result is shown in Table 1, tool
Body test method is as follows:
1, appearance
Fold, bubble are checked for by visual observation, evaluates the appearance of aluminum plastic film.
2, interlaminar strength is tested
The interlaminar strength for testing aluminium foil layer and internal layer, referring to GB/T 2792-2014 " 180 ° of pressure-sensitive tape removings
Strength Testing Methods " as defined in test method operation carry out.Wherein, peel angle: 180 °, peeling rate: 150mm/min.
3, electrolyte resistance performance is tested
Sample is placed in 85 DEG C of electrolyte and is impregnated 15 days, the interlaminar strength of aluminium foil layer and internal layer is tested, sample is wide
Degree: 15 mm, peel angle: 180 °, peeling rate: 150mm/min.
4, barrier property is tested
Sample bag making, injection electrolyte sealing, impregnates 7 days in 45 DEG C of water, tests moisture content in electrolyte.
Table 1
As can be seen from the above table, aluminum plastic film of the present invention has better appearance, corrugationless and bubble, and uses comparative example
The aluminum plastic film of method preparation is unfavorable for the post-productions such as the heat-sealing of aluminum plastic film and use with the presence of fold and bubble；Also, this hair
Bright aluminum plastic film, interlaminar strength are substantially better than the aluminum plastic film of comparative example, this is because interlayer has been discharged in pre-bonded process
Residual air increases interlayer contact area, improves adhesion strength；Meanwhile aluminum plastic film electrolyte resistance performance of the invention and
Barrier property is also significantly better than the aluminum plastic film of comparative example, this is because plastic-aluminum film preparation carries out at a lower temperature, to the greatest extent may be used
High temperature performance loss caused by aluminium foil is can be reduced, to ensure that the corrosion-resistant and strong barrier property of aluminum plastic film.Therefore, this hair
The lithium battery of bright hot pressing attaching process preparation is packed for aluminum plastic film with good appearance, high interlaminar strength, good
Electrolyte resistance performance and high barrier, production operation process is simple, reduces production cost, is suitable for large-scale application.
Above-described embodiment is only the preferred embodiment of the present invention, cannot limit the scope of protection of the invention according to this, this
The variation and replacement for any unsubstantiality that the technical staff in field is done on the basis of the present invention belong to the present invention and are wanted
Seek the range of protection.
Claims (8)
1. the preparation method that a kind of lithium battery is packed for aluminum plastic film, which comprises the steps of:
(1) screw extruder coextrusion casting film forming is added in heat-resistant resin and the first binding material, obtains outer layer；
The heat-resistant resin is selected from nylon 6, nylon66 fiber, nylon 12, nylon 610, nylon 612, nylon 1010, poly- terephthaldehyde
One or more of sour second diester, polyethylene naphthalate；The fusing point of the heat-resistant resin is 165 ~ 280 DEG C；
First binding material is selected from ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylic acid first
Ester copolymer, maleic anhydride or acrylic acid modified polyethylene, maleic anhydride or acrylic acid modified polypropylene, maleic anhydride or
Acrylic acid modified ethylene-vinyl acetate copolymer, maleic anhydride or acrylic acid modified ethylene-acrylic acid copolymer, horse
Come one or more of acid anhydrides or acrylic acid modified ethylene-methyl acrylate copolymer；First binding material melts
Point is 70 ~ 140 DEG C；
The fusing point of the heat-resistant resin is greater than the fusing point of first binding material；
(2) screw extruder coextrusion casting film forming is added in thermoplastic resin and the second binding material, obtains internal layer；
The thermoplastic resin is selected from one or more of polyethylene or its copolymer, polypropylene or its copolymer；The heat
The fusing point of plastic resin is 70 ~ 165 DEG C；
Second binding material is selected from ethylene-vinyl acetate copolymer or its acrylic acid modified object, ethylene-acrylic acid copolymer
Object or its acrylic acid modified object, ethylene-methyl acrylate copolymer or its acrylic acid modified object, ethylene-vinyl acetate copolymerization
The modified ethylene-acrylic acid copolymer of the modified polyolefin resin of object, ethylene-vinyl acetate, ethylene-vinyl acetate copolymerization
Object modified one or more of ethylene-methyl acrylate copolymer, maleic anhydride or acrylic acid modified polyolefin resin；
Wherein, the polyolefin resin refers to the homopolymer or copolymer of alpha-olefin；The alpha-olefin be selected from ethylene, propylene, 1- butylene,
One or more of 1- amylene, 1- hexene, 1- octene, 4-methyl-1-pentene；The fusing point of second binding material be 60 ~
100℃；
The fusing point of the thermoplastic resin is greater than the fusing point of second binding material；
The fusing point of first binding material is greater than the fusing point of second binding material；
(3) by the outer layer of step (1) and aluminium foil layer stackup, heating, pressurization, heating temperature T1 are 100 ~ 155 DEG C, make outer layer and
Aluminium foil layer pre-bonded, obtains middle layer；The first binding material in outer layer is towards aluminium foil surface；
(4) internal layer of above-mentioned middle layer and step (2) is laminated, heating, pressurization, heating temperature T2 are 80 ~ 155 DEG C, make centre
Layer and internal layer pre-bonded, obtain the aluminum plastic film of pre-bonded；The second binding material in internal layer is towards aluminium foil surface；
Heating temperature T1 in the step (3) is greater than the heating temperature T2 in the step (4)；
(5) by the heating of aluminum plastic film further progress, the pressurization of above-mentioned pre-bonded, heating temperature T3 makes the aluminum plastic film of pre-bonded
In each layer really bond；
, traction, coiling process cooling using postorder, can be obtained the aluminum plastic film；
Heating temperature T3 in the step (5) is greater than the heating temperature T1 in the step (3), and the heat-resistant resin
The fusing point of fusing point and the thermoplastic resin is all larger than heating temperature T3, and the fusing point of first binding material and described second
The fusing point of binding material is respectively less than heating temperature T3；
The first binding material is selected from ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, Malaysia in the step (1)
One or more of acid anhydrides or acrylic acid modified polyethylene, maleic anhydride or acrylic acid modified polypropylene；
The fusing point of first binding material is 80 ~ 100 DEG C.
2. the preparation method that lithium battery according to claim 1 is packed for aluminum plastic film, it is characterised in that: the step (1)
Middle outer layer with a thickness of 20 ~ 60 microns；Internal layer with a thickness of 20 ~ 60 microns in the step (2).
3. the preparation method that lithium battery according to claim 1 is packed for aluminum plastic film, it is characterised in that: the step (2)
In the second binding material be selected from ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer maleic anhydride or acrylic acid modified
One or more of polyolefin resin；Wherein, the polyolefin resin refers to the homopolymer or copolymer of alpha-olefin；It is described
Alpha-olefin is selected from one or more of ethylene, propylene, 1- butylene, 1- amylene, 1- hexene, 1- octene, 4-methyl-1-pentene；
The fusing point of second binding material is 80 ~ 90 DEG C.
4. the preparation method that lithium battery according to claim 1 is packed for aluminum plastic film, it is characterised in that: the aluminium foil layer exists
Pre-treatment is also carried out using preceding,
The pre-treatment is one of cleaning treatment, silane coupling agent or titanate coupling agent priming coat process, sided corona treatment
Or it is several.
5. the preparation method that lithium battery according to claim 1 is packed for aluminum plastic film, it is characterised in that: the aluminium foil layer is
Soft state high-mouldability aluminium foil layer, with a thickness of 30 ~ 70 microns.
6. the preparation method that lithium battery according to claim 1 is packed for aluminum plastic film, it is characterised in that: the step (5)
In heating temperature T3 be 120 ~ 155 DEG C.
7. the preparation method that lithium battery according to claim 6 is packed for aluminum plastic film, it is characterised in that: the step (5)
In heating temperature T3 be 130 ~ 150 DEG C.
8. being packed for aluminum plastic film using lithium battery made from any one preparation method in claim 1 to 7.
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| CN109560221B (en) * | 2018-12-03 | 2022-07-15 | 桑顿新能源科技有限公司 | Method for improving packaging reliability of aluminum plastic film of soft package battery |
| CN110010802A (en) * | 2019-04-23 | 2019-07-12 | 上海紫江新材料科技股份有限公司 | A kind of double-deck coloring lithium battery aluminum-plastic film and preparation method thereof |
| CN111171768A (en) * | 2020-02-12 | 2020-05-19 | 上海紫江新材料科技股份有限公司 | Preparation method of binder applied to dry process of aluminum plastic film for lithium battery |
| CN113024946A (en) * | 2021-03-08 | 2021-06-25 | 安徽联科水基材料科技有限公司 | High-heat-seal-strength PP (polypropylene) modified material for film blowing and preparation method thereof |
| CN113427790A (en) * | 2021-05-11 | 2021-09-24 | 律寅鹏 | Low-pressure degassing type aluminum-plastic film preparation process |
| CN113459372A (en) * | 2021-06-30 | 2021-10-01 | 深圳市广麟材耀新能源材料科技有限公司 | Aluminum plastic film production process |
| CN114678637B (en) * | 2022-04-18 | 2023-12-08 | 江苏睿捷新材料科技有限公司 | Aluminum-plastic composite film for lithium ion battery packaging and battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844219A (en) * | 2006-04-06 | 2006-10-11 | 上海交通大学 | Method for preparing ionomer modified water-tree retardant insulating materials |
| CN101987917A (en) * | 2009-07-30 | 2011-03-23 | 现代自动车株式会社 | Conductive polyamide composite composition and fuel transport tube using the same |
| CN102709498A (en) * | 2012-05-30 | 2012-10-03 | 东莞市比比克电子科技有限公司 | Aluminum-plastic packaging film and lithium ion battery manufactured by using same |
| CN103331957A (en) * | 2013-07-10 | 2013-10-02 | 佛山佛塑科技集团股份有限公司 | Easy-cold-punch-molding soft packaging composite material, and preparation method and molding method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8236886B2 (en) * | 2009-07-30 | 2012-08-07 | Equistar Chemicals, Lp | Adhesive compositions |
| CN105034503A (en) * | 2015-05-22 | 2015-11-11 | 苏州天加新材料科技有限公司 | High-air-barrier-property multilayer-co-extrusion packaging film |
-
2017
- 2017-04-19 CN CN201710257402.3A patent/CN107017360B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844219A (en) * | 2006-04-06 | 2006-10-11 | 上海交通大学 | Method for preparing ionomer modified water-tree retardant insulating materials |
| CN101987917A (en) * | 2009-07-30 | 2011-03-23 | 现代自动车株式会社 | Conductive polyamide composite composition and fuel transport tube using the same |
| CN102709498A (en) * | 2012-05-30 | 2012-10-03 | 东莞市比比克电子科技有限公司 | Aluminum-plastic packaging film and lithium ion battery manufactured by using same |
| CN103331957A (en) * | 2013-07-10 | 2013-10-02 | 佛山佛塑科技集团股份有限公司 | Easy-cold-punch-molding soft packaging composite material, and preparation method and molding method thereof |
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|---|---|
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