CN116960536A - 一种高温耐电解液特性的铝塑膜 - Google Patents
一种高温耐电解液特性的铝塑膜 Download PDFInfo
- Publication number
- CN116960536A CN116960536A CN202310053725.6A CN202310053725A CN116960536A CN 116960536 A CN116960536 A CN 116960536A CN 202310053725 A CN202310053725 A CN 202310053725A CN 116960536 A CN116960536 A CN 116960536A
- Authority
- CN
- China
- Prior art keywords
- layer
- thermoplastic resin
- aluminum
- aluminum foil
- plastic film
- 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 173
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 172
- 239000002985 plastic film Substances 0.000 title claims abstract description 73
- 229920006255 plastic film Polymers 0.000 title claims abstract description 73
- 239000003792 electrolyte Substances 0.000 title claims abstract description 35
- -1 amino compound Chemical class 0.000 claims abstract description 126
- 239000011888 foil Substances 0.000 claims abstract description 122
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 11
- 125000003277 amino group Chemical group 0.000 claims abstract description 7
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims description 71
- 238000005406 washing Methods 0.000 claims description 62
- 229920001155 polypropylene Polymers 0.000 claims description 54
- 230000001070 adhesive effect Effects 0.000 claims description 53
- 239000000853 adhesive Substances 0.000 claims description 52
- 229920000098 polyolefin Polymers 0.000 claims description 36
- 238000005266 casting Methods 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 32
- 239000002253 acid Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- 238000013329 compounding Methods 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 125000004122 cyclic group Chemical group 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 238000006386 neutralization reaction Methods 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 15
- 230000032683 aging Effects 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- 229920012753 Ethylene Ionomers Polymers 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229920006228 ethylene acrylate copolymer Polymers 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 226
- 239000012793 heat-sealing layer Substances 0.000 abstract description 10
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 4
- 125000000217 alkyl group Chemical group 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000009545 invasion Effects 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 description 36
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 15
- 239000004677 Nylon Substances 0.000 description 15
- 229910052744 lithium Inorganic materials 0.000 description 15
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 15
- 229920001778 nylon Polymers 0.000 description 15
- 238000004806 packaging method and process Methods 0.000 description 15
- 238000001125 extrusion Methods 0.000 description 14
- 239000000047 product Substances 0.000 description 14
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 14
- 238000007731 hot pressing Methods 0.000 description 13
- 238000005096 rolling process Methods 0.000 description 13
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 11
- 229910001416 lithium ion Inorganic materials 0.000 description 11
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 8
- 239000000178 monomer Substances 0.000 description 6
- 239000005022 packaging material Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- NFPBWZOKGZKYRE-UHFFFAOYSA-N 2-propan-2-ylperoxypropane Chemical compound CC(C)OOC(C)C NFPBWZOKGZKYRE-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920006122 polyamide resin Polymers 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229920001634 Copolyester Polymers 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
- 238000007719 peel strength test Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- DUCFBDUJLLKKPR-UHFFFAOYSA-N [O--].[Zn++].[Ag+] Chemical compound [O--].[Zn++].[Ag+] DUCFBDUJLLKKPR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- H01M50/121—Organic material
-
- 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
- H01M50/1243—Primary casings; Jackets or wrappings characterised by the material having a layered structure characterised by the internal coating on the casing
-
- 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
-
- 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
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/141—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against humidity
-
- 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
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/145—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2307/306—Resistant to heat
-
- 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
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Laminated Bodies (AREA)
Abstract
本发明公开了一种高温耐电解液特性的铝塑膜,由外层、铝箔层和内层层叠而成,所述外层包括至少一层耐热性树脂膜,所述内层包括至少一层热塑性树脂膜,所述热塑性树脂膜为热塑性树脂与低聚物类胺基化合物的共混层。本发明通过将低聚物类胺基化合物与热塑性树脂共混,利用与热封层结构类似的含胺基的低聚物,使得其胺基链段能够渗透进热封层高分子链段中,与热封层形成链纠缠的结构,同时,低聚物的烷基具有疏水性,能有效阻挡水汽侵入,可以解决在长期使用过程中因耐电解液性能差而导致高温长期浸泡电解液时铝箔同热塑性树脂剥离强度降低的问题。
Description
技术领域
本发明属于电池用铝塑膜技术领域,具体涉及一种高温耐电解液特性的铝塑膜。
背景技术
锂离子电池也被称作锂二次电池,其结构包括:由正极集电材料/正极活性物质层/隔膜/电解液层/负极活性物质层/负极集电材料构成的电池主体,以及包装所述电池主体的外包装材料-锂离子电池用外包装材料。锂离子电池用外包装材料是由包括耐热性树脂膜的外层、铝箔及包括热塑性树脂膜的内层层叠而形成的,其中铝箔和内外层膜通过粘接剂粘合。与作为电池要素的容器使用的以往的金属制罐不同,锂离子电池用外包装材料在重量轻、放热性高、形状自由度高等方面性能优异。因此近年来,人们开发了越来越多的小型轻量化锂电池作为个人电脑、手机等便携终端装置、摄像机、卫星及车辆等使用的蓄电装置。
锂离子电池用外包装材料实际使用过程中主要存在以下问题:热塑性树脂内层直接与电解液接触,因为电解液的腐蚀导致锂离子电池用外包装材料高温长期浸泡电解液铝箔同热塑性树脂剥离强度降低。如电解液中的六氟磷酸锂高温下与水反应生成氢氟酸,氢氟酸渗透进热塑性材料,氢氟酸腐蚀粘接剂,导致铝箔和热塑性树脂剥离力降低,严重时会产生分层。解决上述问题不仅和粘接剂、内外层的性质紧密相关,更离不开对氢氟酸的处理,通过合适的处理方法,可以有效的保持铝箔同热塑性树脂内层的剥离强度。
非常有必要开发一种耐电解液性能优异的铝塑膜以解决在长期使用过程中因耐电解液性能差而导致高温长期浸泡电解液时铝箔同热塑性树脂剥离强度降低的问题。
发明内容
本发明的目的在于克服现有技术存在的缺陷,提供一种高温耐电解液特性的铝塑膜。
为了实现以上目的,本发明的技术方案之一在于提供一种高温耐电解液特性的铝塑膜,由外层、铝箔层和内层层叠而成,所述外层包括至少一层耐热性树脂膜,所述内层包括至少一层热塑性树脂膜,所述热塑性树脂膜为热塑性树脂与低聚物类胺基化合物的共混层。
在本发明一较佳实施例中,所述低聚物类胺基化合物为分子链段带有胺基的高分子低聚物,高分子低聚物含有500-10000个碳原子;所述低聚物类胺基化合物分子至少有一端疏水。
进一步的,所述高分子低聚物为数均分子量为1000-10000的低分子量聚丙烯、聚乙烯或乙烯和丙烯的共聚物,所述胺基为一元胺或多元胺,所述低聚物类胺基化合物通式为CnHmNH2、CnHmNH、CnHmN,其中n=1000—100000,m为饱和烯烃H分子数。
优选的,所述低聚物类胺基化合物中低聚物为原子量为3000的丙烯与乙烯的共聚物,链端胺基为一元胺。
在本发明一较佳实施例中,所述共混层为热塑性树脂与低聚物类胺基类化合物通过挤出机共混挤出形成,所述共混层接触电解液。
在本发明一较佳实施例中,所述外层厚度为20-100μm,铝箔层的厚度为20-80μm,内层厚度为10-80μm。
在本发明一较佳实施例中,所述铝箔层内表面涂布化学处理液形成化学处理层,化学处理液由磷酸盐、铬酸盐以及水溶性树脂按照质量比4:1:95组成,所述水溶性树脂是丙烯酸类树脂或酚醛类树脂或磺酸基类树脂中的一种或多种,化学处理层的厚度为0.01—1μm。
在本发明一较佳实施例中,所述内层还包括至少一层热塑性树脂层。
在本发明一较佳实施例中,所述热塑性树脂为聚酯树脂或聚酰胺树脂。
在本发明一较佳实施例中,所述热塑性树脂为聚烯烃、环状聚烯烃、酸改性聚烯烃、酸改性环状聚烯烃中的一种。
进一步的,所述热塑性树脂层是聚丙烯、马来酸改性聚丙烯、乙烯-丙烯酸酯共聚物或离聚物树脂的未拉伸膜,优选聚丙烯。
更进一步的,热塑性树脂层更优选两层结晶度不同的聚丙烯,铝箔侧聚丙烯结晶度
20-45%,电解液侧聚丙烯结晶度50—70%。
在本发明一较佳实施例中,所述外层与铝箔层利用粘结剂采用高温热法复合。
进一步的,所述粘结剂从聚氨酯系粘接剂、酸改性烯烃系粘接剂、丙烯酸系粘接剂、苯乙烯弹性体粘接剂、硅胶系粘接剂、醚系粘接剂、乙烯-醋酸乙烯系粘接剂中选择至少一种,粘结剂层厚度为1-10μm。
一种高温耐电解液特性的铝塑膜在电池封装中的应用。
本发明的技术方案之二在于提供一种高温耐电解液特性的铝塑膜的制备方法,包括如下步骤:
(1)铝箔预处理:将铝箔经过碱洗除油、水洗、酸洗中和、水洗,得到表面洁净的铝箔层;
(2)涂布化学处理液:利用涂布机在上述铝箔的内表面涂布化学处理液,涂布时间为2-60s,得到内表面带有化学处理层的铝箔;
(3)制备复合内层:将低聚物胺基化合物与热塑性树脂颗粒按照比例搅拌均匀,通过热法流延机流延到铝箔表面,冷却成热塑性树脂膜;再将热塑性树脂利用流延机流延在上述热塑性树脂膜表面:
(4)复合耐热性树脂外层:利用粘接剂将耐热性树脂热法复合在铝箔外表面,即制得铝塑膜半成品;
(5)后处理:将上述制得的铝塑膜半成品于60-120℃下老化加热3-4天,得到所述铝塑膜。
在本发明一较佳实施例中,所述步骤(1)中的铝箔采用的是经退火处理过的铝箔。
在本发明一较佳实施例中,所述步骤(1)中铝箔表面需经过碱洗除油、水洗、酸洗中和和水洗的处理。
与现有技术相比,本发明的有益效果在于:
1.本发明通过将低聚物类胺基化合物与热塑性树脂共混,利用与热封层结构类似的含胺基的低聚物,使得其胺基链段能够渗透进热封层高分子链段中,与热封层形成链纠缠的结构,同时,低聚物的烷基具有疏水性,能有效阻挡水汽侵入;
2.本发明中低聚物类胺基化合物的碱性能中和电解液中的六氟磷酸锂在高温条件下分解产生的氢氟酸,抑制氢氟酸对铝塑膜的腐蚀,从而可以提升铝塑膜整体高温耐电解液的效果。
附图说明
图1为本发明实施例1制备的高温耐电解液特性的铝塑膜的层结构示意图,
其中,1-外层,2-粘接剂层、3-铝箔层、4-化学处理层、5-热塑性树脂与低聚物类胺基化合物共挤出层、6-热塑性树脂层;
图2为本发明低聚物类胺基化合物的结构示意图,
其中,R1-碳原子数量为500-10000的烷基,R2-为氢原子或者取代基,R3-为氢原子或者取代基。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白,以下结合附图和具体实施例对本发明进行更详细地描述,但本发明的保护范围并不受限于这些实施例。文中相同的附图标记始终代表相同的元件,相似的附图标记代表相似的元件。
在本发明的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“横”、“竖”、“顶”、“底”、“内”、“外”等指示的方位或位置关系是基于附图中的立体图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
一种高温耐电解液特性的铝塑膜,由外层、铝箔层和内层层叠而成,所述外层包括至少一层耐热性树脂膜,所述内层包括至少一层热塑性树脂膜,所述热塑性树脂膜为热塑性树脂与低聚物类胺基化合物的共混层。
1、外层
构成锂离子电池用外包装材料的外层,含有1层或2层以上的耐热性树脂膜,当外层由2层以上的耐热性树脂膜构成时,优选使2层以上的耐热性树脂膜之间通过粘接层而叠层。
作为耐热性树脂膜的外层,可以使用拉伸聚酯或尼龙膜,作为聚酯树脂可以列举,聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚萘二甲酸乙二醇酯、聚萘二甲酸丁二醇酯、共聚聚酯、聚碳酸酯等,作为尼龙,可以列举出聚酰胺树脂,即尼龙6、尼龙66、尼龙6和尼龙66的共聚物、尼龙6,10、聚间二甲苯己二酰二胺等。
此外,构成外层的耐热性树脂膜厚度范围为20-100μm,熔点优选比构成内层的热塑性树脂膜的熔点高,这样在实施热封时不会对外层耐热性树脂膜产生不良影响。
上述耐热性树脂膜可进行易粘接处理,如等离子体处理、臭氧处理、电晕放电处理及底涂处理等。
2、粘接剂层
粘接剂层是为了使尼龙基材外层与铝箔层牢固地粘接而根据需要设置于它们之间的层。粘接剂层由能够将基材层与金属层粘接的粘接剂形成。用于形成粘接剂层的粘接剂可以为双液固化型粘接剂,也可以为单液固化型粘接剂。另外,对于用于形成粘接剂层的粘接剂的粘接机理,也没有特别限制,化学反应型、溶剂挥发型、热熔融型、热压型等的任意类型均可。
具体可以列举:聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚萘二甲酸乙二醇酯、聚萘二甲酸丁二醇酯、聚间苯二甲酸乙二醇酯、共聚聚酯等的聚酯系树脂;聚醚系粘接剂;聚氨酯系粘接剂;环氧系树脂;酚醛系树脂;尼龙6、尼龙66、尼龙12、共聚聚酰胺等的聚酰胺系树脂;聚烯烃、羧酸改性聚烯烃、金属改性聚烯烃等的聚烯烃系树脂、聚乙酸乙烯酯系树脂;纤维素系粘接剂;(甲基)丙烯酸系树脂;聚酰亚胺系树脂;聚碳酸酯;尿素树脂、三聚氰胺树脂等的氨基树脂;氯丁二烯橡胶、丁腈橡胶、苯乙烯-丁二烯橡胶等的橡胶;有机硅系树脂等。这些粘接成分可以单独使用1种,也可以将2种以上组合使用。在这些粘接成分中,优选列举聚氨酯系粘接剂。
3、铝箔层
铝箔层除了提高铝塑膜的强度以外、还具有防止水蒸气、氧、光等侵入电池内部的功能。从防止在铝箔层产生褶皱或针孔的观点考虑,优选由例如经退火处理的如JISH4160:1994A8021H-O、JIS H4160:1994A8079H-O、JIS H4000:2014A8021P-O和JIS H4000:2014A8079P-O等软质铝合金箔。
铝箔层的厚度足以能够发挥作为水蒸气等的阻隔层的功能外,没有特别限制,为了保证冲压过程中铝箔的完整性,综合电池用铝塑膜的薄膜化、轻质化的观点,作为上限,可以列举约120μm以下、优选约100μm以下、更优选约80μm以下、更加优选约50μm以下,作为下限,可以列举优选约20μm以上,作为该厚度的范围,能够设为20-120μm、20-100μm、优选20-80μm、20-50μm。
4、化学处理层
化学处理层是为了提升粘接剂层同铝箔层之间的粘接力,同时防止电池长时间使用,由于电解液的腐蚀,粘接剂层同铝箔层的粘接力下降。化学处理层由磷酸盐、铬酸盐以及水溶性树脂按照质量比4:1:95组成。水溶性树脂是丙烯酸类树脂或酚醛类树脂或磺酸基类树脂中的一种或多种。
5、热塑性树脂层
热塑性树脂层的作用是使得针对电池中使用的腐蚀性强的电解液等具备优异的耐化学药品性,并且赋予铝塑膜热封性。
树脂成分,没有特别限制,可以列举例如聚烯烃、环状聚烯烃、酸改性聚烯烃、酸改性环状聚烯烃。可以包含聚烯烃骨架,且优选包含聚烯烃骨架。
作为上述聚烯烃,具体可以列举:低密度聚乙烯、中密度聚乙烯、高密度聚乙烯、线性低密度聚乙烯等聚乙烯;均聚丙烯、聚丙烯的嵌段共聚物(例如丙烯与乙烯的嵌段共聚物)、聚丙烯的无规共聚物(例如丙烯与乙烯的无规共聚物)等聚丙烯;乙烯-丁烯-丙烯的三元聚合物等。这些聚烯烃之中,优选列举聚乙烯和聚丙烯。
上述环状聚烯烃为烯烃与环状单体的共聚物,作为上述环状聚烯烃的构成单体的烯烃,可以列举例如乙烯、丙烯、4-甲基-1-戊烯、丁二烯、异戊二烯等。另外,作为上述环状聚烯烃的构成单体的环状单体,可以列举例如降冰片烯等环状烯,具体可以列举环戊二烯、二环戊二烯、环己二烯、降冰片二烯等环状二烯等。这些聚烯烃中,优选列举环状烯,进一步优选列举降冰片烯。
上述酸改性聚烯烃是通过利用羧酸等酸成分将上述聚烯烃嵌段聚合或接枝聚合而改性得到的聚合物。作为改性所使用的酸成分,可以列举例如马来酸、丙烯酸、衣康酸、巴豆酸、马来酸酐、衣康酸酐等的羧酸或其酸酐。
上述酸改性环状聚烯烃是通过将构成环状聚烯烃的单体的一部分替换成α,β-不饱和羧酸或其酸酐进行共聚、或者通过使α,β-不饱和羧酸或其酸酐与环状聚烯烃嵌段聚合或接枝聚合而得到的聚合物。被羧酸改性的环状聚烯烃同上。另外,作为改性所使用的羧酸,与上述聚烯烃的改性所使用的酸成分同样。
这些树脂成分中,优选列举聚丙烯等聚烯烃、羧酸改性聚烯烃,进一步优选列举聚丙烯、酸改性聚丙烯。
热塑性树脂层可以单独由1种树脂成分形成,还可以由将2种以上的树脂成分组合而成的掺混聚合物形成。另外,热塑性树脂层可以仅由1层形成,还可以利用相同或不同的树脂成分由2层以上形成。
热塑性树脂层的厚度,没有特别限制,从使电池用铝塑膜薄型化、并且发挥优异的成型性的观点出发,作为上限,优选列举约80μm以下,能够减少树脂使用量,可实现成本的降低,作为下限,优选列举约10μm以上,能够充分防止针孔的产生,因此优选列举为10μm-80μm左右,更优选为10-40μm左右。
6、低聚物类胺基化合物与热塑性树脂共挤出层
低聚物类胺基化合物与热塑性树脂共挤出层的作用是利用其中含有的胺基化合物中和电解液中的六氟磷酸锂在高温下产生的氢氟酸,减少氢氟酸对铝塑膜的腐蚀,从而维持铝塑膜的剥离强度。但传统的胺基化合物分子量小,与热封层结构差异大,导致与热封层不相容,从而致使胺基化合物聚集在界面处,破坏界面的稳定性,导致粘接性能下降。采用低聚物类胺基化合物,利用低聚物与热封层相似的结构,使其与热封层形成稳定的链纠缠结构,同时胺基能够中和电解液中产生的氢氟酸。
共挤出的热塑性树脂成分,没有特别限制,可以列举例如聚烯烃、环状聚烯烃、酸改性聚烯烃、酸改性环状聚烯烃。即,可以包含聚烯烃骨架,且优选包含聚烯烃骨架。
7、用途
利用本发明的高温耐电解液铝塑膜进行电池的封装,将至少具有正极、负极和电解质的电池元件在与上述正极和负极各自连接的金属端子向外侧突出的状态下、以能够在电池元件的边缘形成凸缘部(热封层树脂彼此相接触的区域)的方式进行覆盖,将上述凸缘部的热封层彼此热封来进行密封,由此能够提供使用了的电池用铝塑膜的电池。此外,在使用本发明的电池用铝塑膜收纳电池元件时,以本发明的电池用铝塑膜的热封层树脂部分成为内侧(与电池元件接触的面)的方式使用。
本发明的电池封装用铝塑膜可以使用于一次电池、二次电池的任意一种,优选为二次电池。关于应用本发明的电池用铝塑膜的二次电池的种类,没有特别限制,可以列举例如锂离子电池、锂离子聚合物电池、铅蓄电池、镍-氢蓄电池、镍-镉蓄电池、镍-铁蓄电池、镍-锌蓄电池、氧化银-锌蓄电池、金属空气电池、多价阳离子电池、电容器等。这些二次电池中,作为本发明的电池用铝塑膜的优选应用对象,可以列举锂离子电池和锂离子聚合物电池。
以下实施例中耐电解液剥离强度通过如下方法检测:
实验条件为按照标准要求,将制成的铝塑膜裁剪一条长100mm,宽15mm的长条于瓶中,注入商用电解液中淹没长条,密封后放入温度为80℃的烘箱中,24h后取出,用清水冲去残留的电解液,擦干后利用万能拉力机测得耐电解液剥离强度。
以下实施例中用到的马来酸酐改性聚丙烯通过如下方法制备:将单体马来酸酐、聚丙烯(分子量为100000)、引发剂DCP(过氧化二异丙笨)和溶剂甲苯按照2.5:10:0.6:30比例投料进反应釜,140℃的条件下反应3小时;
三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物通过如下方法制备:将三烯丙基胺、聚丙烯蜡(分子量为7000)、引发剂DCP(过氧化二异丙笨)和溶剂二甲苯按照1.75:50:0.75:200比例投料进反应釜,120℃反应8小时;
三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的聚丙烯低聚物胺基化合物通过如下方法制备:将三烯丙基胺、乙烯丙烯无规共聚蜡(分子量为7000)、引发剂DCP(过氧化二异丙笨)和溶剂二甲苯按照1.75:50:0.75:200比例投料进反应釜,120℃反应8小时。
实施例1
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为1:49的比例将三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物和马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到图1所示结构的铝塑膜,包括由外至内依次层叠的外层1、粘接剂层2、铝箔层3、化学处理层4、聚物类胺基化合物与树脂共挤出层5、热塑性树脂层6而形成的电池封装用铝塑膜。
实施例2
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为2:48的比例将三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例3
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为3:47的比例将三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例4
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为4:46的比例将三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例5
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为5:45的比例将三烯丙基胺接枝聚丙烯蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例6
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为1:49的比例将三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例7
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为2:48的比例将
三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的聚丙烯低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例8
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为3:47的比例将三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例9
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为4:46的比例将三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
实施例10
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,按质量比为5:45的比例将
三烯丙基胺接枝乙烯丙烯无规共聚蜡制成的低聚物胺基化合物与马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物胺基化合物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
对比例1
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,将不含胺基的聚丙烯与聚乙烯共聚物的低聚物乙烯丙烯无规共聚蜡与改性PP基材马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
对比例2
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,将不含胺基的聚丙烯的低聚物聚丙烯蜡与改性PP基材马来酸酐改性聚丙烯混合均匀后放入挤出机,在处理过的铝箔内表面流延成低聚物和热塑性树脂共挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
对比例3
采用40μm铝箔层经过碱洗除油、水洗、酸洗中和、水洗,得到干净的铝箔层;然后在铝箔层内表面辊涂处理液,经过75℃高温固化,从而得到化学处理涂层;接着将粘接剂均匀的涂在铝箔层外表面,形成粘接剂层,控制粘接剂的用量,使粘接剂层厚度为4μm;然后将厚度为25μm的尼龙层(耐热性树脂)复合至铝箔层的外表面,将改性PP基材马来酸酐改性聚丙烯放入挤出机,在处理过的铝箔内表面流延成挤出层,控制厚度为40μm,再将厚度为40μm的PP层(热塑性树脂)热压复合于流延层表面,形成热塑性树脂层,最终得到成品的锂电池铝塑膜;将成品于75℃下老化加热4天,即得到电池封装用铝塑膜。
对以上实施例和对比例制得的铝塑膜进行耐电解液剥离强度检测,检测结果如下表1所示。通过表1可知:添加胺基低聚物能够有效增加铝塑膜的PP/Al层的干剥离强度与耐电解液的剥离强度,最优添加量为0.8wt%,最大干剥离强度为14.5(N/1.5cm),最大耐电解液剥离强度为6.5(N/1.5cm),已达到3C电池行业标准。
表1耐电解液剥离强度检测结果
以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims (10)
1.一种高温耐电解液特性的铝塑膜,其特征在于,由外层、铝箔层和内层层叠而成,所述外层包括至少一层耐热性树脂膜,所述内层包括至少一层热塑性树脂膜,所述热塑性树脂膜为热塑性树脂与低聚物类胺基化合物的共混层。
2.如权利要求1所述的铝塑膜,其特征在于,所述低聚物类胺基化合物为分子链段带有胺基的高分子低聚物,所述高分子低聚物含有500-10000个碳原子,所述低聚物类胺基化合物分子至少有一端疏水。
3.如权利要求2所述的铝塑膜,其特征在于,所述高分子低聚物为数均分子量为1000-10000的低分子量聚丙烯、聚乙烯或乙烯和丙烯的共聚物,所述胺基为一元胺或多元胺,所述低聚物类胺基化合物通式为CnHmNH2、CnHmNH、CnHmN,其中n=1000—100000,m为饱和烯烃H分子数。
4.如权利要求1所述的铝塑膜,其特征在于,所述共混层为热塑性树脂与低聚物类胺基类化合物通过挤出机共混挤出形成。
5.如权利要求1所述的铝塑膜,其特征在于,所述外层厚度为20-100μm,铝箔层厚度为20-80μm,内层厚度为10-80μm。
6.如权利要求1所述的铝塑膜,其特征在于,所述铝箔层内表面涂布化学处理液形成化学处理层,所述化学处理层的厚度为0.01—1μm。
7.如权利要求1所述的铝塑膜,其特征在于,所述内层还包括至少一层热塑性树脂层。
8.如权利要求4或7所述的铝塑膜,其特征在于,所述热塑性树脂为聚烯烃、环状聚烯烃、酸改性聚烯烃、酸改性环状聚烯烃中的一种。
9.如权利要求7所述的铝塑膜,其特征在于,所述热塑性树脂层为聚丙烯、马来酸改性聚丙烯、乙烯-丙烯酸酯共聚物或离聚物树脂中的一种未拉伸膜。
10.一种如权利要求1-9任一项所述的铝塑膜的制备方法,其特征在于,包括如下步骤:
(1)铝箔预处理:将铝箔经过碱洗除油、水洗、酸洗中和、水洗,得到表面洁净的铝箔层;
(2)涂布化学处理层:利用涂布机在上述铝箔的内表面涂布三价铬化学处理层,涂布时间为2-60s,得到内表面带有化学处理层的铝箔;
(3)制备复合内层:将低聚物胺基化合物与热塑性树脂颗粒按照比例搅拌均匀,通过热法流延机流延到铝箔表面,冷却成热塑性树脂膜;再将热塑性树脂利用流延机流延在上述热塑性树脂膜表面:
(4)复合耐热性树脂外层:利用粘接剂将耐热性树脂热法复合在铝箔外表面,即制得铝塑膜半成品;
(5)后处理:将上述制得的铝塑膜半成品于60-120℃下老化加热3-4天,得到所述铝塑膜。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310053725.6A CN116960536A (zh) | 2023-02-03 | 2023-02-03 | 一种高温耐电解液特性的铝塑膜 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310053725.6A CN116960536A (zh) | 2023-02-03 | 2023-02-03 | 一种高温耐电解液特性的铝塑膜 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116960536A true CN116960536A (zh) | 2023-10-27 |
Family
ID=88450033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310053725.6A Pending CN116960536A (zh) | 2023-02-03 | 2023-02-03 | 一种高温耐电解液特性的铝塑膜 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116960536A (zh) |
-
2023
- 2023-02-03 CN CN202310053725.6A patent/CN116960536A/zh active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5659241B2 (ja) | 封止フィルムの製造方法および封止フィルム | |
US10886506B2 (en) | Cell packaging material, method for manufacturing same, and cell | |
JP4620202B2 (ja) | ポリマー電池用包装材料の製造方法 | |
JP6596869B2 (ja) | 金属端子用接着性フィルム | |
WO2016047790A1 (ja) | 電池用包装材料 | |
JP2007294381A (ja) | 電池用包装材料 | |
JP5914380B2 (ja) | 電池用包装材料 | |
JP2000208112A (ja) | 電池端子用被覆材及び被覆した電池用端子 | |
WO2020153460A1 (ja) | 蓄電デバイス用外装材、蓄電デバイス用外装材の製造方法、及び蓄電デバイス | |
JPH1167166A (ja) | ポリマー電池用包材 | |
CN107408645B (zh) | 电池用包装材料、其制造方法和电池 | |
WO2020153457A1 (ja) | 全固体電池及びその製造方法 | |
JP2017139121A (ja) | 金属端子用接着性フィルム | |
JP5783196B2 (ja) | 電池用包装材料 | |
EP3998650A1 (en) | Adhesive film for metal terminals, metal terminal with adhesive film for metal terminals, electricity storage device using said adhesive film for metal terminals, and method for producing electricity storage device | |
JP6627908B2 (ja) | 電池用包装材料 | |
CN116960536A (zh) | 一种高温耐电解液特性的铝塑膜 | |
CN114714727A (zh) | 一种电池用外包装铝塑膜、制备方法及其电池 | |
JP4397445B2 (ja) | ポリマー電池用外装体 | |
KR20200003559A (ko) | 이차전지용 리드 탭 필름 및 이를 포함하는 이차전지 | |
WO2016159233A1 (ja) | 電池用包装材料、その製造方法、及び電池 | |
JP2015213064A (ja) | 電池用包装材料 | |
JP4968419B2 (ja) | リチウムイオン電池用包装材料およびその製造方法 | |
JP7482189B2 (ja) | 処理液、弁構造体の表面処理方法 | |
KR20200132517A (ko) | 이차전지용 리드 탭 필름 및 이를 포함하는 이차전지 |
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 |