CN104070726A - Double-layer composite aluminum-plastic film - Google Patents
Double-layer composite aluminum-plastic film Download PDFInfo
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- CN104070726A CN104070726A CN201310096089.1A CN201310096089A CN104070726A CN 104070726 A CN104070726 A CN 104070726A CN 201310096089 A CN201310096089 A CN 201310096089A CN 104070726 A CN104070726 A CN 104070726A
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- aluminum
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- aluminium foil
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Abstract
The invention provides a double-layer composite aluminum-plastic film. The aluminum-plastic film adopts a composite structure and comprises, from top to bottom, an outer film, an aluminum foil 1, a functional intermediate film, an aluminum foil 2 and an inner film. According to the invention, the double-layer composite aluminum-plastic film adopts the composite structure, the functional intermediate film can separate needle holes possibly occurred due to a single layer of the aluminum foil and maximumly absorbs infiltrated water molecules, the material and processing of the outer film depend on a packaged material, and the material and processing of the inner film depend on application and the environment. The high-barrier composite aluminum-plastic film has the characteristics of high heat-sealing strength and a high water vapor barrier rate and can be used both as an aluminum-plastic packaging film for a polymer lithium battery and as a high-barrier diaphragm for flexible packaging.
Description
Technical field
Patent of the present invention relates to a kind of two-layer compound aluminum plastic film, is specifically related to a kind of design and material prescription research of membrane structure.
Background technology
Along with information age development, scientific and technological progress is maked rapid progress, and the mankind have very high demand to the high barrier of encapsulating material, especially in the demand aspect energy encapsulating material, further thirst for.Solar energy and lithium battery are one of country's seven large new industries, and wherein flexible solar is the state-of-the-art technology of solar energy, can further widen the range of application of solar energy.No matter be flexible solar or lithium battery, all encapsulating material proposed to very high requirement, high-barrier composite membrane is as the indispensable packaging material of poly-lithium battery, also unrealized production domesticization at present, and market is monopolized by Japanese enterprises substantially; Flexible solar battery, for meeting service life, also proposes very high requirement to encapsulating material, the at present domestic encapsulating material that does not meet its encapsulation requirement.
Patent of the present invention solves this difficult problem, and China is as energy big country, and obvious to all to the serious hope of new forms of energy, market capacity is inestimable, will have good market prospects.
Summary of the invention
Patent of the present invention provides a kind of two-layer compound aluminum plastic film material.
Patented technology scheme of the present invention, is characterized in that adopting composite construction, uses high-strength adhesive to connect between each layer of structure, adopts double-layer aluminum-foil structure, and aqueous vapor rejection rate is high, puncture resistance good, has good heat seal strength, extends encapsulating products service life.
Preferably, described aluminium foil adopts double-decker, improves aqueous vapor rejection rate and puncture resistance, effectively intercepts the aqueous vapor that individual layer aluminium foil pinprick sees through.
Preferably, described double-layer aluminum-foil thickness according to requirements, is chosen thickness uniform thickness and uniform thickness not, and aluminium foil surface is that what can process can be also not process
Preferably, described intermediate coat, as functional membrane, adds the micro materials of water suction, oxygen uptake function, and the pinprick that separated individual layer aluminium foil may occur is also drawn deep hydrone, strengthens aqueous vapor rejection rate.
Preferably, described intermediate coat may be the adhesives such as NY film or PE film.
Preferably, described cephacoria as with encapsulant contact-making surface, its material and process according to packaged material and determine, object is raising environmental suitability.
Preferably, described notacoria is as noncontact face, and its material and processing are determined according to environment for use, and object is to improve puncture resistance, heat seal strength.
Preferably, described dry ingredient may be a kind of in silica gel, alumina gel, active carbon etc.
Preferably, described inner membrance may adopt boiling level CPP film, and heat-resisting quantity is good, and hot blast intensity is high, and the holes rate while reducing the heat-sealing of aluminum-plastic packaging film, improves yields; Airtight sealing, improves aqueous vapor rejection rate; Oil resistivity is good, improves the antiacid corrosivity of whole aluminum-plastic packaging film, increases the service life.
Preferably, the shockproof film of described heat conduction has the good coefficient of heat conduction, is used in poly-lithium battery charge and discharge process self internal resistance heating heat radiation.
Preferably, the shockproof film of described heat conduction has good ductility, in poly-lithium battery vibrations or collision process, plays cushioning effect, prevents polymer Li-ion battery surface fracture or internal short-circuit.
Preferably, described preservative treatment layer plays the effect of strengthening protection, prevents in the situation that inner membrance damages, and acidic electrolysis bath corrosive aluminum foil, overflows.
Preferably, each layer of described aluminum-plastic composite membrane adopts high-strength adhesive to connect, and adopts the mode of chamical binding, makes bond effect better, stops layering.
Two-layer compound aluminum plastic film of the present invention adopts composite construction, and performance indications are more superior, puncture resistance is better, aqueous vapor rejection rate is higher.Use the life of product of this high-barrier packaging membrane encapsulation longer, security is better.
Accompanying drawing explanation
Accompanying drawing is the two-layer compound aluminum plastic film structural representation of patented technology of the present invention.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme of the present invention, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with structural representation, the present invention is further detailed explanation.
Aluminum-plastic composite membrane structural representation as shown in the figure, the shockproof film of the anti-heat conduction of last layer, be used in poly-lithium battery charge and discharge process self internal resistance heating heat radiation and play cushioning effect in poly-lithium battery vibrations or collision process, preventing polymer Li-ion battery surface fracture or internal short-circuit; Adventitia is to have high strength, thin-film material that can scratch; Double-deck aluminium foil is to improve aqueous vapor rejection rate and puncture resistance, effectively intercepts the aqueous vapor that individual layer aluminium foil pinprick sees through.Function articulamentum between aluminium foil, is mixed with drier composition, not only can fine bonding two-layer aluminium foil, and can play absorption aqueous vapor, strengthen moisture obstruction; Preservative treatment layer, prevents in the situation that inner membrance damages, and acidic electrolysis bath corrosive aluminum foil, overflows; Each rete adopts high-strength adhesive to connect, and adopts the mode of chamical binding, makes bond effect better, stops layering.
Claims (10)
1. encapsulate an aluminum-plastic composite membrane for use, it is characterized in that adopting composite construction, can utilize bonding agent to be connected between every layer, be followed successively by from top to bottom adventitia, aluminium foil 1, function intermediate coat, aluminium foil 2, inner membrance, rejection rate is lower than 10
-5g/m
2day.
2. adventitia according to claim 1, is characterized in that it is that surface strength is higher, scratch resistant film.
3. inner membrance according to claim 1, is characterized in that it is heat-resisting quantity, oil resistivity, corrosion-resistant, air-tightness is better, and the high plastic sheeting of heat seal strength.
4. for an aluminum-plastic composite membrane for polymer lithium battery encapsulation, it is characterized in that adopting novel multi-layer composite construction, by the shockproof film of heat conduction, tack coat, adventitia, tack coat, aluminium foil 1, function articulamentum, aluminium foil 2, preservative treatment layer, inner membrance, formed successively.
5. the shockproof film of heat conduction according to claim 4, is characterized in that self is polymer composite, has the good coefficient of heat conduction and ductility.
6. preservative treatment layer according to claim 4, is characterized in that preventing in the situation of inner membrance damage the erosion of corrosive liquids to outer membrane.
7. encapsulating an aluminum-plastic composite membrane for use, it is characterized in that adopting double-layer aluminum-foil structure, is the function intermediate coat that is mixed with drier between two-layer aluminium foil.
8. double-layer aluminum-foil structure according to claim 7, is characterized in that its two-layer aluminium foil can uniform thickness or uniform thickness not, and aluminium foil surface is that what can process can be also not process.
9. drier according to claim 7, is characterized in that it is the particle below micron order, and chemical composition may be a kind of in silica gel, aluminium oxide, active carbon etc.
10. function intermediate coat according to claim 7, is characterized in that it is the adhesives of efficient bonding two-layer aluminium foil, is also the thin-film material that contains dry ingredient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096089.1A CN104070726A (en) | 2013-03-25 | 2013-03-25 | Double-layer composite aluminum-plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096089.1A CN104070726A (en) | 2013-03-25 | 2013-03-25 | Double-layer composite aluminum-plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104070726A true CN104070726A (en) | 2014-10-01 |
Family
ID=51592527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310096089.1A Pending CN104070726A (en) | 2013-03-25 | 2013-03-25 | Double-layer composite aluminum-plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104070726A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529413A (en) * | 2016-02-22 | 2016-04-27 | 苏州锂盾储能材料技术有限公司 | Double aluminum layer type aluminum plastic film applied to polymer lithium ion battery |
| CN106240001A (en) * | 2016-10-14 | 2016-12-21 | 上海海顺新型药用包装材料股份有限公司 | High-barrier pharmaceutical pack composite membrane |
| CN109309178A (en) * | 2018-09-17 | 2019-02-05 | 苏州清陶新能源科技有限公司 | A kind of flexible lithium ion battery encapsulating material and preparation method thereof |
| US10385180B2 (en) | 2014-11-27 | 2019-08-20 | Sumitomo Chemical Company, Limited | Package of porous film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2554801Y (en) * | 2002-08-05 | 2003-06-04 | 厦门宝龙工业股份有限公司 | Packaging structure of lithium ion attery |
| CN101764199A (en) * | 2010-01-13 | 2010-06-30 | 黄山永新股份有限公司 | High-blocking corrosion-resisting lithium battery composite packaging film and preparation method thereof |
| CN201942178U (en) * | 2011-02-23 | 2011-08-24 | 珠海市赛日包装材料有限公司 | Soft packaging film for lithium battery |
| CN202275849U (en) * | 2010-10-14 | 2012-06-13 | 苏州柔印光电科技有限公司 | Flexible transparent high-obstruction packaging film |
-
2013
- 2013-03-25 CN CN201310096089.1A patent/CN104070726A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2554801Y (en) * | 2002-08-05 | 2003-06-04 | 厦门宝龙工业股份有限公司 | Packaging structure of lithium ion attery |
| CN101764199A (en) * | 2010-01-13 | 2010-06-30 | 黄山永新股份有限公司 | High-blocking corrosion-resisting lithium battery composite packaging film and preparation method thereof |
| CN202275849U (en) * | 2010-10-14 | 2012-06-13 | 苏州柔印光电科技有限公司 | Flexible transparent high-obstruction packaging film |
| CN201942178U (en) * | 2011-02-23 | 2011-08-24 | 珠海市赛日包装材料有限公司 | Soft packaging film for lithium battery |
Non-Patent Citations (1)
| Title |
|---|
| 崔春芳、王雷: "《塑料薄膜制品与加工》", 31 August 2012, article "塑料薄膜制品与加工", pages: 107 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10385180B2 (en) | 2014-11-27 | 2019-08-20 | Sumitomo Chemical Company, Limited | Package of porous film |
| CN107001682B (en) * | 2014-11-27 | 2020-04-28 | 住友化学株式会社 | Method for producing porous film |
| CN105529413A (en) * | 2016-02-22 | 2016-04-27 | 苏州锂盾储能材料技术有限公司 | Double aluminum layer type aluminum plastic film applied to polymer lithium ion battery |
| CN106240001A (en) * | 2016-10-14 | 2016-12-21 | 上海海顺新型药用包装材料股份有限公司 | High-barrier pharmaceutical pack composite membrane |
| CN109309178A (en) * | 2018-09-17 | 2019-02-05 | 苏州清陶新能源科技有限公司 | A kind of flexible lithium ion battery encapsulating material and preparation method thereof |
| CN109309178B (en) * | 2018-09-17 | 2021-11-02 | 苏州清陶新能源科技有限公司 | Packaging material for flexible lithium ion battery and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20141001 |