CN204315634U - A kind of lithium battery flexible package aluminum plastic film - Google Patents
A kind of lithium battery flexible package aluminum plastic film Download PDFInfo
- Publication number
- CN204315634U CN204315634U CN201420530190.3U CN201420530190U CN204315634U CN 204315634 U CN204315634 U CN 204315634U CN 201420530190 U CN201420530190 U CN 201420530190U CN 204315634 U CN204315634 U CN 204315634U
- Authority
- CN
- China
- Prior art keywords
- layer
- plastic film
- lithium battery
- aluminum plastic
- new function
- 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.)
- Expired - Lifetime
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 50
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 239000002985 plastic film Substances 0.000 title claims abstract description 28
- 229920006255 plastic film Polymers 0.000 title claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 32
- 239000004743 Polypropylene Substances 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 229920005629 polypropylene homopolymer Polymers 0.000 claims abstract description 14
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 238000009459 flexible packaging Methods 0.000 claims abstract description 8
- 239000005030 aluminium foil Substances 0.000 claims description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 5
- 230000001568 sexual effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 18
- 239000003792 electrolyte Substances 0.000 description 16
- 239000002904 solvent Substances 0.000 description 8
- 238000004806 packaging method and process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 4
- 231100000252 nontoxic Toxicity 0.000 description 4
- 230000003000 nontoxic effect Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000009820 dry lamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- 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
- 101100007583 Entamoeba histolytica CPP2 gene Proteins 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to lithium battery flexible package aluminum plastic film, described lithium battery flexible packaging aluminum plastic film has layer structure, its intermediate layer is aluminum base layer AL, point upper and lower both sides outside aluminum base layer AL, downside is distributed as new function bonding resin layer AD, polyester layer PET, new function bonding resin layer AD and co-polypropylene layer CPP successively from inside to outside, and upside is distributed as new function bonding resin layer AD, polyester layer PET, new function bonding resin layer AD and homo-polypropylene layer PP successively from inside to outside.
Description
Technical field
The utility model relates to lithium battery flexible package aluminum plastic film technical field, concretely, and the lithium battery flexible package aluminum plastic film that the utility model relates to.
Background technology
At present, on market, the aluminum plastic film of lithium battery packaging is monopolized by Japanese two companies, although domestic rear a lot of producer is in development, all could not be successful, and the domestic lithium battery flexible packaging aluminum plastic film that market is not also produced in batches.Flexible package lithium cell because its very thin, area that can do is large, shape can abnormity, do not burn, the packaging of advantage the is widely used in lithium battery such as brisance is minimum.
The upper lithium battery flexible packaging aluminum plastic film of existing market mostly adopts dry-lamination process to produce, dry-lamination process is mainly composited various functional membrane and base material aluminium foil by solvent bonding layer, due to the particularity of lithium battery flexible packaging aluminum plastic film materials'use, bubble to be invaded for a long time exactly through electrolyte, we know that electrolyte has very strong corrosivity, electrolyte can produce the extremely strong hydrofluoric acid of corrosivity (HF), also containing the ethylene carbonate (EC) that solvability is extremely strong, dimethyl carbonate (DMC), once electrolyte is through CPP layer, contact with aluminium foil with binding agent, solvent bonding layer can be made to decompose, make layering between CPP and AL, AL runs into HF, also can be corroded, make battery leakage, bulging.So the lithium battery flexible packaging aluminum plastic film of dry type compound requires very high to solvent bonding layer, be difficult to ensure the quality of products.
Utility model content
The purpose of this utility model is the lithium battery flexible packaging aluminum plastic film adopting brand-new multilayer mutual aid casting technology to produce.
For achieving the above object, the utility model adopts following technical scheme:
a kind of lithium battery flexible package aluminum plastic film,described lithium battery flexible packaging aluminum plastic film has layer structure, it is by the aluminum base layer AL of centre, point upper and lower both sides outside aluminum base layer AL, upside is distributed as new function bonding resin layer AD, polyester layer PET, co-polypropylene layer CPP successively from inside to outside, and downside is distributed as new function bonding resin layer AD, polyester layer PET, homo-polypropylene layer PP successively from inside to outside.
Described aluminum base layer AL is that the soft state height of annealed process becomes sexual type aluminium foil, and the thickness of this aluminum base layer is 30 ~ 40 microns.
Between described aluminum base layer AL and polyester layer PET, polyester layer PET and homo-polypropylene layer PP, the polyester layer PET new function bonding resin layer AD thickness 4-8 micron together between polypropylene layer CPP.
Described polyester layer PET is polyethylene terephtalate, and the thickness of this polyester layer PET is 5 ~ 20 microns.
The thickness of described homo-polypropylene layer PP is 8-10 micron, and the thickness of co-polypropylene is 8-10 micron.
Beneficial effect: aluminum base layer of the present utility model, has good ductility and has good mechanical property; Polyester layer (PET), as packaging function protective material, has good electrolyte resistance performance, and impact strength is strong, and folding resistance is good, and oil resistant, resistance to fat, resistance to olefin(e) acid, diluted alkaline, resistance to most of solvent, gas and vapor permeability low; Outer adopt PP material, Tension and Compression intensity and hardness performance good, and good rigidly, heat seal strength is high, has good thermal endurance, corrosion resistance simultaneously, stable high, absorbs water hardly.Novel adhesion resin bed, polyester layer, novel adhesion resin bed, homo-polypropylene layer that in the middle of the utility model, aluminum base layer is symmetrical successively laterally, its material stress is more even, be of value to drawing and forming, the most important binder resin being the utility model and developing new function, very firmly can paste aluminium foil, polyester layer PET, PP, CPP material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with each specific embodiment and Figure of description, the utility model is described in further detail:
As shown in Figure 1, a kind of lithium battery flexible package aluminum plastic film disclosed in the utility model, described lithium battery flexible package aluminum plastic film material has layer structure, its intermediate layer is aluminum base layer AL4, AL4 divides upper and lower both sides, downside is distributed as new function bonding resin layer AD2, polyester layer PET3, new function bonding resin layer AD2 and co-polypropylene layer CPP5 successively from inside to outside, upside is distributed as new function bonding resin layer AD2, polyester layer PET3, new function bonding resin layer AD2 and homo-polypropylene PP1 successively from inside to outside, distributes in both sides.Because lithium battery flexible package aluminum plastic film material layer structure of the present utility model is distribution, its material stress more uniform ground degree is good, is convenient to packaging and uses.
Described new function bonding resin layer AD2, mainly adopts the homo-polypropylene PP of mass percent 85-95% as base material, is activated monomer using the copolymer SMA of mass percent 5-15% phenylethylene-maleic anhydride, adopts mass ratio 0.3% as cumyl peroxide DCP additive.The copolymer SMA of phenylethylene-maleic anhydride of the present utility model, the percent grafting overcoming PP grafted maleic anhydride is on the market not high, causes the shortcoming that the bonding force of binder resin and aluminium is limited.Use SMA as maleic anhydride source, greatly can improve the content of maleic anhydride in PP graft, above-mentioned formula maleic anhydride content can reach 8%, far above other graft; Preferably and the material at low temperature such as aluminium foil, PET, CPP, PP heat sealing performance, casting technique makes its adhesive fastness stronger.
New function bonding resin layer AD2 of the present utility model adopts multi-screw extruder extrusion process, extrusion temperature: 170-230 DEG C.
Described aluminum base layer 4 is that the soft state height of annealed process becomes sexual type aluminium foil, and the thickness of this aluminum base layer 4 is 30 ~ 40 microns.Be convenient to processing and forming.
Between described aluminum base layer 3 and polyester layer 3, polyester layer 3 and homo-polypropylene layer 1, the new function bonding resin layer AD2 thickness 4-8 micron of polyester layer 3 together between polypropylene layer 5.This thickness new function bonding resin layer AD2, its stickup performance is the strongest.
Described polyester layer 3 is polyethylene terephtalate, and the thickness of this polyester layer 3 is 5 ~ 20 microns.Polyester layer PET3 is as functional protection packaging material; there is good electrolyte resistance performance; its impact strength is 3 ~ 5 times of other films; folding resistance is good, and oil resistant, resistance to fat, resistance to olefin(e) acid, diluted alkaline, resistance to most of solvent; gas and vapor permeability low; existing excellent choke, water, oil and peculiar smell performance, nontoxic, tasteless, wholesomeness is good.
The thickness of described homo-polypropylene layer 1 is for being 8-10 micron.Homo-polypropylene layer 1 has good electrical property and high-frequency insulation and not by humidity effect, has higher thermal endurance; Chemical property is good, absorbs water hardly, does not react with most chemicals; Quality is pure, and non-toxic electrical insulating property is good.
The thickness of described co-polypropylene layer 5 is for being 8-10 micron.Co-polypropylene layer 5 has good chemical stability, electrical property and high-frequency insulation and not by humidity effect, has good electrolyte resistance performance, have higher thermal endurance; Chemical property is good, absorbs water hardly, and non-toxic and most chemicals does not react; Have and well seal from heat sealability, it can arrive 45-65N/15mm from heat seal strength.
Described lithium battery flexible package aluminum plastic film adopts five laminar flows to prolong coextrusion, carries out the tape casting processing.Produce that product electrolyte resistance performance is good, heat seal strength high smooth, high barrier, not crimping, drawing and forming be functional.
Prove by experiment, the aluminum plastic film material of the lithium battery packaging of our utility model adopts brand-new multilayer mutual aid casting technology, very strong adhesive fastness is had as new function bonding resin layer AD2 and base material aluminium AL4, polyester layer PET3, homo-polypropylene layer PP1, co-polypropylene layer CPP2, there is excellent electrolyte resistance performance simultaneously, there is natural decay resistance, even if electrolyte permeability is to aluminum base layer, also aluminum plastic film layering can not be caused; Carry out Passivation Treatment at aluminium foil surface simultaneously, improve the resistance to corrosion of aluminium foil itself; Adopt the polyester layer PET3 of high barrier, good electrolyte resistance performance, make electrolyte cannot arrive aluminium foil surface through polyester layer PET3; The corrosion resistance of the utility model product reaches following index: electrolyte soak 85 DEG C 7 days, AL/CPP interlaminar strength >=8 N/15mm.Under normal temperature, electrolyte is encapsulated in aluminum plastic film, and keep 5 years, material is not stratified.Co-polypropylene layer CPP5 has well from heat sealability, and it can arrive 45-65N/15mm from heat seal strength.
In sum, aluminum base layer AL4 of the present utility model, has good ductility and has good mechanical property; Polyester layer PET3 of the present utility model is as packaging function protective material, electrolyte resistance performance is good, its impact strength is strong, folding resistance is good, and oil resistant, resistance to fat, resistance to olefin(e) acid, diluted alkaline, resistance to most of solvent, gas and vapor permeability low, existing excellent choke, water, oil and peculiar smell performance, nontoxic, tasteless, wholesomeness is good; And its material stress is even, there will not be alice phenomenon during cutting, most important is that the utility model develops new function binder resin, very firmly can paste aluminium foil, polyester layer PET3, CPP, PP material.Its production technology adopts multilayer mutual aid casting technology, and reduce waste discharge, the feature of environmental protection is strong.And production process is without the need to any additive, solvent, and in production process and the course of processing, nuisance can not be produced.As lithium battery flexible package aluminum plastic film material its to have barrier property strong, all can intercept completely for oxygen, water, have higher ductility, be easy to shaping, not alice after shaping, evenness is good.The most important thing is also to have good oil resistant and solvent resistance, electrolyte resistance corrode.
The above is only to preferred embodiment of the present utility model; not scope of the present utility model is limited; therefore under the prerequisite not departing from the utility model design spirit; the equivalence change that the common engineers and technicians in this area do structure described in the utility model, feature and principle or decoration, all should fall in protection range that the utility model applies for a patent.
Claims (5)
1. a lithium battery flexible package aluminum plastic film, it is characterized in that: described lithium battery flexible packaging aluminum plastic film has layer structure, its intermediate layer is aluminum base layer AL, point upper and lower both sides outside aluminum base layer AL, downside is distributed as new function bonding resin layer AD, polyester layer PET, new function bonding resin layer AD and co-polypropylene layer CPP successively from inside to outside, and upside is distributed as new function bonding resin layer AD, polyester layer PET, new function bonding resin layer AD and homo-polypropylene layer PP successively from inside to outside.
2. lithium battery flexible package aluminum plastic film according to claim 1, is characterized in that: described aluminum base layer AL is that the soft state height of annealed process becomes sexual type aluminium foil, and the thickness of this aluminum base layer AL is 30 ~ 40 microns.
3. lithium battery flexible package aluminum plastic film according to claim 1, is characterized in that: between described aluminum base layer AL and polyester layer PET, polyester layer PET and homo-polypropylene layer PP, the polyester layer PET new function bonding resin layer AD thickness 4-8 micron together between polypropylene layer CPP.
4. lithium battery flexible package aluminum plastic film according to claim 1, is characterized in that: described polyester layer PET is polyethylene terephtalate, and the thickness of this polyester layer PET is 5 ~ 20 microns.
5. lithium battery flexible package aluminum plastic film according to claim 1, is characterized in that: the thickness of described homo-polypropylene layer PP is 8-10 micron, and the thickness of co-polypropylene is 8-10 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530190.3U CN204315634U (en) | 2013-12-24 | 2014-09-16 | A kind of lithium battery flexible package aluminum plastic film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858850 | 2013-12-24 | ||
| CN2013208588506 | 2013-12-24 | ||
| CN201420530190.3U CN204315634U (en) | 2013-12-24 | 2014-09-16 | A kind of lithium battery flexible package aluminum plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204315634U true CN204315634U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530190.3U Expired - Lifetime CN204315634U (en) | 2013-12-24 | 2014-09-16 | A kind of lithium battery flexible package aluminum plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204315634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308575A (en) * | 2021-12-27 | 2022-04-12 | 深圳市安博瑞新材料科技有限公司 | CVD nylon layer surface treatment technology process |
-
2014
- 2014-09-16 CN CN201420530190.3U patent/CN204315634U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308575A (en) * | 2021-12-27 | 2022-04-12 | 深圳市安博瑞新材料科技有限公司 | CVD nylon layer surface treatment technology process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190301 Address after: 517000 Room 702, C1 Building, Lingnan Garden, 212 Yonghe West Road, Yuancheng District, Heyuan City, Guangdong Province Patentee after: OuYang Shaobo Address before: 274000 Sanli River Community, East Yellow River Road, Heze Development Zone, Shandong Province Patentee before: HEZE TIANXIN NEW MATERIALS TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190712 Address after: 517000 Triangle Industrial Park, Lianping County, Heyuan City, Guangdong Province Patentee after: Guangdong Saiyang Technology Co.,Ltd. Address before: 517000 Room 702, C1 Building, Lingnan Garden, 212 Yonghe West Road, Yuancheng District, Heyuan City, Guangdong Province Patentee before: OuYang Shaobo |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150506 |