CN204885222U - High corrosion resistant separation plastic -aluminum membrane of lithium cell composite packaging - Google Patents
High corrosion resistant separation plastic -aluminum membrane of lithium cell composite packaging Download PDFInfo
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- CN204885222U CN204885222U CN201520504743.2U CN201520504743U CN204885222U CN 204885222 U CN204885222 U CN 204885222U CN 201520504743 U CN201520504743 U CN 201520504743U CN 204885222 U CN204885222 U CN 204885222U
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- 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
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Abstract
The utility model relates to a high corrosion resistant separation plastic -aluminum membrane of lithium cell composite packaging, including copolymerization propylene layer, first hot glue rete, corrosion -resistant type aluminium foil layer, second hot glue rete, separation type aluminium foil layer, third hot glue rete, a nylon layer, fourth hot glue rete, fluorine rete, the 2nd nylon layer, the plastic -aluminum membrane is stacked gradually outside to by interior copolymerization propylene layer, first hot glue rete, corrosion -resistant type aluminium foil layer, second hot glue rete, separation type aluminium foil layer, third hot glue rete, a nylon layer, fourth hot glue rete, fluorine rete, the 2nd nylon layer. The utility model discloses a composite technology production is crowded altogether to the multilayer, and processing is simple, has excellent barrier properties, heat sealability, ductility ability, corrosion resisting property.
Description
Technical field
The utility model relates to battery packaging material field, and particularly a kind of lithium battery composite packaging height corrosion resistant intercepts aluminum plastic film.
Background technology
Aluminum plastic film is the important housing material of lithium ion battery flexible package, in recent years along with the extensive use of the 3C Products such as iPhone, iPad, Ultrabook, in addition the exploitation of lithium ion battery electric automobile, the application of polymer Li-ion battery also increases fast, the corresponding growth having driven aluminum plastic film demand.
Because the electrolyte in lithium ion battery has very strong sensitiveness to glassware for drinking water, electrolyte is met water and is easy to generate severe corrosive hydrofluoric acid and other gases, and these materials of generation can have a strong impact on cycle-index and the useful life of battery, cause battery rapid failure.In addition, battery is easy to pierce through, destroy wrapping film in machine-shaping process, and thus lithium ion battery external packing aluminum plastic film need have excellent barrier, heat sealability, ductility and chemical stability.How improving these correlated performances of aluminum plastic film is the major issues of closing system lithium cell quality.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of lithium battery composite packaging height corrosion resistant to intercept aluminum plastic film, and this aluminum plastic film has excellent barrier property, heat sealability, ductility, decay resistance.
The technical solution of the utility model is: a kind of lithium battery composite packaging height corrosion resistant intercepts aluminum plastic film, comprise co-polypropylene layer, first hot glue rete, corrosion resistant type aluminium foil layer, second hot glue rete, isolation-type aluminium foil layer, 3rd hot glue rete, first nylon layer, 4th hot glue rete, fluorine rete, second nylon layer, described aluminum plastic film stacks gradually described co-polypropylene layer from inside to outside, first hot glue rete, corrosion resistant type aluminium foil layer, second hot glue rete, isolation-type aluminium foil layer, 3rd hot glue rete, first nylon layer, 4th hot glue rete, fluorine rete, second nylon layer.
As a kind of preferred version of the present utility model, the aluminium foil surface of described corrosion resistant type aluminium foil layer is coated with anticorrosive paint coating.
As a kind of preferred version of the present utility model, the aluminum foil thickness of described corrosion resistant type aluminium foil layer is 10 ~ 50 μm, and anticorrosive paint coating layer thickness is 2 ~ 20 μm.
As a kind of preferred version of the present utility model, described isolation-type aluminium foil layer forms isolation-type aluminium foil by carrying out the process of degreasing chromaking at aluminium foil surface, and the thickness of described isolation-type aluminium foil layer is 30 ~ 100 μm.
As a kind of preferred version of the present utility model, the material of described fluorine rete is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete is 3 ~ 30 μm.
After adopting technique scheme, the beneficial effects of the utility model are:
First, the utility model adopts the double-layer aluminum-foil technology of anticorrosion aluminium foil layer and isolation-type aluminium foil layer effectively can improve corrosion resistance and the barrier of aluminum plastic film; Secondly, the utility model skin adopts the structure of two nylon layer fluoridize rete effectively can improve the outer field ductility of aluminum plastic film and chemical stability.The utility model adopts multi-layer co-extruded complex technique to produce, and processing is simple, has excellent barrier property, heat sealability, ductility, decay resistance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is co-polypropylene layer; 2 is the first hot glue rete; 3 is corrosion resistant type aluminium foil layer; 4 is the second hot glue rete; 5 is isolation-type aluminium foil layer; 6 is the 3rd hot glue rete; 7 is the first nylon layer; 8 is the 4th hot glue rete; 9 is fluorine rete; 10 is the second nylon layer.
Embodiment
In order to make the purpose of this utility model and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction utility model.
As shown in Figure 1, the utility model provides a kind of lithium battery composite packaging height corrosion resistant and intercepts aluminum plastic film, comprise co-polypropylene layer 1, first hot glue rete 2, corrosion resistant type aluminium foil layer 3, second hot glue rete 4, isolation-type aluminium foil layer 5, 3rd hot glue rete 6, first nylon layer 7, 4th hot glue rete 8, fluorine rete 9, second nylon layer 10, described aluminum plastic film stacks gradually described co-polypropylene layer 1 from inside to outside, first hot glue rete 2, corrosion resistant type aluminium foil layer 3, second hot glue rete 4, isolation-type aluminium foil layer 5, 3rd hot glue rete 6, first nylon layer 7, 4th hot glue rete 8, fluorine rete 9, second nylon layer 10.
The aluminium foil surface of described corrosion resistant type aluminium foil layer 3 is coated with anticorrosive paint coating.The aluminum foil thickness of described corrosion resistant type aluminium foil layer 3 is 10 ~ 50 μm, and anticorrosive paint coating layer thickness is 2 ~ 20 μm.Concrete, anticorrosive paint coating can select one or more combinations in the polyaniline of solubility, polyacetylene, polyparaphenylene PPP, polyparaphenylene's acetylene, polypyrrole, polythiophene and poly-O-ethoxyl amine anticorrosive paint to carry out anticorrosion, conduction modification to soft aluminium foil surface.The optional 1-METHYLPYRROLIDONE NMP of above-mentioned coating solution, acetic acid, perchloric acid, fluoboric acid, pyridine, ethanol, triethylamine, 2-methylaziridine, heptan imines, metacresol, dimethylbenzene, chloroform, methyl alcohol, dimethyl formamide DMF, dimethylbenzene, acetone, ethyl acetate, butyl acetate, one or more combinations in butanone.One or more combinations in the optional epoxy resin of the main material of anticorrosive paint film forming coating, polyimides, natural resin, phenolic resins, amino materials, nitre radical species, chlorinated rubber, acrylic acid, polyurethane, organic siliconresin, fluorocarbon resin, polysiloxanes, vinyl.Anticorrosive paint concentration is 2%-80%
Described isolation-type aluminium foil layer 5 forms isolation-type aluminium foil by carrying out the process of degreasing chromaking at aluminium foil surface, and the thickness of described isolation-type aluminium foil layer is 30 ~ 100 μm.
The material of described fluorine rete 9 is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete 9 is 3 ~ 30 μm.
In order to improve performance of the present utility model further, one or both in the utility model in nylon, co-polypropylene, fluorine film single or double employing corona, low carry out process modification.
The manufacturing technology steps of this aluminum plastic film is as follows:
1. pair co-polypropylene one side, nylon and fluorine film are two-sided all adopts plasma corona treatment;
2. co-polypropylene, anticorrosion type aluminium foil, isolation-type aluminium foil, nylon, fluorine film, nylon are bondd by adhesive, and carry out lamination, compound, drying by above-mentioned lamination order, obtain aluminum plastic film finished product.
Product of the present utility model reaches following index through mensuration:
1. peel strength test: electrolyte soaks 85 DEG C, 7 days, and film interlaminar strength is more than or equal to 8N/15mm;
2. permeability resistance test: soak 14 days in the water of 60 DEG C, without layering, weight change is less than 0.05 gram.
3. deep drawability test, the deep-draw degree of depth reaches more than 6mm.
To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a lithium battery composite packaging height corrosion resistant intercepts aluminum plastic film, it is characterized in that, comprise co-polypropylene layer, the first hot glue rete, corrosion resistant type aluminium foil layer, the second hot glue rete, isolation-type aluminium foil layer, the 3rd hot glue rete, the first nylon layer, the 4th hot glue rete, fluorine rete, the second nylon layer, described aluminum plastic film stacks gradually described co-polypropylene layer, the first hot glue rete, corrosion resistant type aluminium foil layer, the second hot glue rete, isolation-type aluminium foil layer, the 3rd hot glue rete, the first nylon layer, the 4th hot glue rete, fluorine rete, the second nylon layer from inside to outside.
2. intercept aluminum plastic film according to the lithium battery composite packaging height corrosion resistant described in claim 1, it is characterized in that, the aluminium foil surface of described corrosion resistant type aluminium foil layer is coated with anticorrosive paint coating.
3. intercept aluminum plastic film according to the lithium battery composite packaging height corrosion resistant described in claim 2, it is characterized in that, the aluminum foil thickness of described corrosion resistant type aluminium foil layer is 10 ~ 50 μm, and anticorrosive paint coating layer thickness is 2 ~ 20 μm.
4. intercept aluminum plastic film according to the lithium battery composite packaging height corrosion resistant described in claim 1, it is characterized in that, described isolation-type aluminium foil layer forms isolation-type aluminium foil by carrying out the process of degreasing chromaking at aluminium foil surface, and the thickness of described isolation-type aluminium foil layer is 30 ~ 100 μm.
5. intercept aluminum plastic film according to the lithium battery composite packaging height corrosion resistant described in claim 1, it is characterized in that, the material of described fluorine rete is one or more combinations in polyvinyl fluoride, Kynoar, polytetrafluoroethylene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropylene, the binary of vinylidene or terpolymer, modification polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon; The thickness of described fluorine rete is 3 ~ 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504743.2U CN204885222U (en) | 2015-07-13 | 2015-07-13 | High corrosion resistant separation plastic -aluminum membrane of lithium cell composite packaging |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520504743.2U CN204885222U (en) | 2015-07-13 | 2015-07-13 | High corrosion resistant separation plastic -aluminum membrane of lithium cell composite packaging |
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| CN204885222U true CN204885222U (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966798A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Composite packaging high-corrosion-resistant barrier aluminum-plastic film for lithium battery |
| CN107464896A (en) * | 2016-06-02 | 2017-12-12 | 黄闵晨 | Ultrathin aluminum plastic film |
-
2015
- 2015-07-13 CN CN201520504743.2U patent/CN204885222U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966798A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Composite packaging high-corrosion-resistant barrier aluminum-plastic film for lithium battery |
| CN107464896A (en) * | 2016-06-02 | 2017-12-12 | 黄闵晨 | Ultrathin aluminum plastic film |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 759, Zhizhou Avenue, Huaxi Street, Changxing County, Hangzhou, Zhejiang Province 313000 Patentee after: Zhejiang Lidun Energy Storage Material Technology Co.,Ltd. Address before: 215134 No. 6 Anmin Road, Dongqiao, Huangduo Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU LIDUN ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |