CN204991769U - Lithium cell composite packaging functionalization plastic -aluminum membrane - Google Patents
Lithium cell composite packaging functionalization plastic -aluminum membrane Download PDFInfo
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- CN204991769U CN204991769U CN201520503064.3U CN201520503064U CN204991769U CN 204991769 U CN204991769 U CN 204991769U CN 201520503064 U CN201520503064 U CN 201520503064U CN 204991769 U CN204991769 U CN 204991769U
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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 lithium cell composite packaging functionalization plastic -aluminum membrane, including modified polypropylene layer, nano particles layer, first binder layer, fluorine carbon dope layer, aluminium foil layer, second binder layer, nylon layer, the plastic -aluminum membrane is stacked gradually outside to by interior modified polypropylene layer, nano particles layer, first binder layer, fluorine carbon dope layer, aluminium foil layer, second binder layer, nylon layer. The utility model discloses add the strong nano particles layer of hydroscopicity, can effectively resist steam and get into sour and other gases of corrosivity such as electrolyte production hydrofluoric acid, improved the comprehensive barrier properties of plastic -aluminum membrane, secondly, electrolyte can effectively be resisted to the corruption of aluminium foil to aluminium foil inlayer coating fluorine carbon coating in the plastic -aluminum membrane, has strengthened the anticorrosive function of aluminium foil. The utility model discloses a multilayer bonding, the production of lamination composite technology, processing is simple, the easy realization to excellent barrier properties, heat sealability, ductility ability and corrosion resisting property have.
Description
Technical field
The utility model relates to battery packaging material field, particularly a kind of lithium battery composite packaging functionalization aluminum plastic film.
Background technology
Along with the quick popularization and application of energy storage electronic product, mobile phone, electronic traffic etc., the application quantity demand of energy-storage battery also increases fast in recent years, in energy-storage battery polymer Li-ion battery because its cycle-index is many, the advantage such as the large and long service life of energy density, become one of most widely used energy-storage battery in energy storage industry.
Polymer Li-ion battery is the Main way of following lithium-ion energy storage battery application; polymer Li-ion battery formed primarily of electrode, electrolyte, barrier film and packaging film; the effect of packaging film is mainly in order to protect the electrolyte in polymer battery not invade and harass by extraneous wet gas environments; produce hydrofluoric acid and other gases, thus the performance quality requirements of packaging film is very high.The packaging film that industry interpolymer lithium ion battery is applied at present is also known as aluminum plastic film, the composite material that it is made up of aluminium foil and other macromolecule polymer materials, require that there is excellent barrier, ductility and heat sealability, but domestic at present also do not have corresponding high-quality and meet polymer Li-ion battery to apply the aluminum plastic film appearance required, domestic aluminum plastic film market is also mainly several aluminum plastic film production companies of Japan and monopolizes, and essential core problem or barrier do not reach enterprise requirements needed for battery.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of lithium battery composite packaging functionalization aluminum plastic film.This aluminum plastic film has excellent barrier property, heat sealability, ductility and decay resistance.
The technical solution of the utility model is: a kind of lithium battery composite packaging functionalization aluminum plastic film, comprise modified polypropene layer, nanoparticle layers, the first adhesive layer, fluorocarbon coating layer, aluminium foil layer, the second adhesive layer, nylon layer, described aluminum plastic film stacks gradually described modified polypropene layer, nanoparticle layers, the first adhesive layer, fluorocarbon coating layer, aluminium foil layer, the second adhesive layer, nylon layer from inside to outside.
As a kind of preferred version of the present utility model, the material of described modified polypropene layer is polypropylene and cycloolefin analog copolymer co-extrusion or cycloolefin analog copolymer, polypropylene, polyethylene three co-extrusion; The thickness of described modified polypropene layer is 15 ~ 85 μm.
As a kind of preferred version of the present utility model, the material of described nanoparticle layers is one or more combinations in nanoscale silica gel, alumina in Nano level, nanoscale calcium chloride, nano level active charcoal.
As a kind of preferred version of the present utility model, the thickness of described nanoparticle layers is 1 ~ 5 μm.
As a kind of preferred version of the present utility model, the thickness of described fluorocarbon coating layer is 1 ~ 20 μm.
As a kind of preferred version of the present utility model, described fluorocarbon coating layer is made up of fluorocarbon polymer, solvent and curing agent; Described fluorocarbon polymer is one or more combinations in polytetrafluoroethylene, poly(perfluoropropene), polyvinylidene fluoride, PVF-vinyl ether co-polymer, PVF-vinyl acetate co-polymer, PVF-multi-copolymerization resin.
As a kind of preferred version of the present utility model, the solvent in described fluorocarbon coating layer is one or more combinations in ester class, aromatic hydrocarbons, lipid, ketone, water, alcohols solvent.
As a kind of preferred version of the present utility model, the curing agent in described fluorocarbon coating layer is one or more combinations of aliphatic diamine and polyamines, aromatic polyamine, organic acid, acid anhydrides.
As a kind of preferred version of the present utility model, the material of described aluminium foil layer is aluminium foil, and the thickness of described aluminium foil layer is 30 ~ 100 μm.
After adopting technique scheme, the beneficial effects of the utility model are:
First, the utility model with the addition of bibulous nanoparticle layers, effectively can resist steam and enter caustic acid and other gases such as electrolyte generation hydrofluoric acid, improve the materials with high barrier property of aluminum plastic film; Secondly, in aluminum plastic film, aluminum foil inner layer coating fluorocarbon coating effectively can resist the corrosion of electrolyte to aluminium foil, enhances the anticorrosive function of aluminium foil.The utility model adopts laminated, lamination complex technique to produce, and processing is simple, easily realizes, and has excellent barrier property, heat sealability, ductility and decay resistance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is modified polypropene layer; 2 is nanoparticle layers; 3 is the first adhesive layer; 4 is fluorocarbon coating layer; 5 is aluminium foil layer; 6 is the second adhesive layer; 7 is 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 the utility model.
As shown in Figure 1, the utility model provides a kind of lithium battery composite packaging functionalization aluminum plastic film, comprise modified polypropene layer 1, nanoparticle layers 2, first adhesive layer 3, fluorocarbon coating layer 4, aluminium foil layer 5, second adhesive layer 6, nylon layer 7, described aluminum plastic film stacks gradually described modified polypropene layer 1, nanoparticle layers 2, first adhesive layer 3, fluorocarbon coating layer 4, aluminium foil layer 5, second adhesive layer 6, nylon layer 7 from inside to outside.
The material of described modified polypropene layer 1 is polypropylene and cycloolefin analog copolymer co-extrusion or cycloolefin analog copolymer, polypropylene, polyethylene three co-extrusion; The thickness of described modified polypropene layer 1 is 15 ~ 85 μm.
The material of described nanoparticle layers 2 is one or more combinations in nanoscale silica gel, alumina in Nano level, nanoscale calcium chloride, nano level active charcoal.The thickness of described nanoparticle layers 2 is 1 ~ 5 μm, is preferably 3 μm.
The thickness of described fluorocarbon coating layer 4 is 1 ~ 20 μm.Described fluorocarbon coating layer 4 is made up of fluorocarbon polymer, solvent and curing agent; Described fluorocarbon polymer is one or more combinations in polytetrafluoroethylene, poly(perfluoropropene), polyvinylidene fluoride, PVF-vinyl ether co-polymer, PVF-vinyl acetate co-polymer, PVF-multi-copolymerization resin.Solvent in described fluorocarbon coating layer 4 is one or more combinations in ester class, aromatic hydrocarbons, lipid, ketone, water, alcohols solvent.Curing agent in described fluorocarbon coating layer 4 is one or more combinations of aliphatic diamine and polyamines, aromatic polyamine, organic acid, acid anhydrides.
The material of described aluminium foil layer 5 is aluminium foil, and the thickness of described aluminium foil layer 5 is 30 ~ 100 μm.The material of described nylon layer 7 is nylon, and the thickness of described nylon layer 7 is preferably 3 ~ 30 μm.The method of manufacturing technology step of this functionalization aluminum plastic film is as follows:
1. pair aluminium foil layer coating fluorocarbon coating;
2. modified polypropene film, nylon membrane are carried out plasma corona treatment;
3. spray one deck nano particle at the one side of modified polypropene film;
4. the modified polypropene of spraying nano particle, the aluminium foil of coating fluorocarbon coating, nylon membrane are carried out lamination compound, drying under binding agent, 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. have and good rush dark performance.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a lithium battery composite packaging functionalization aluminum plastic film, it is characterized in that, comprise modified polypropene layer, nanoparticle layers, the first adhesive layer, fluorocarbon coating layer, aluminium foil layer, the second adhesive layer, nylon layer, described aluminum plastic film stacks gradually described modified polypropene layer, nanoparticle layers, the first adhesive layer, fluorocarbon coating layer, aluminium foil layer, the second adhesive layer, nylon layer from inside to outside.
2. according to the lithium battery composite packaging functionalization aluminum plastic film described in claim 1, it is characterized in that, the thickness of described modified polypropene layer is 15 ~ 85 μm.
3. according to the lithium battery composite packaging functionalization aluminum plastic film described in claim 1, it is characterized in that, the material of described nanoparticle layers is nano level active charcoal.
4. according to the lithium battery composite packaging functionalization aluminum plastic film described in claim 2, it is characterized in that, the thickness of described nanoparticle layers is 1 ~ 5 μm.
5. according to the lithium battery composite packaging functionalization aluminum plastic film described in claim 1, it is characterized in that, the thickness of described fluorocarbon coating layer is 1 ~ 20 μm.
6. according to the lithium battery composite packaging functionalization aluminum plastic film described in claim 1, it is characterized in that, the material of described aluminium foil layer is aluminium foil, and the thickness of described aluminium foil layer is 30 ~ 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503064.3U CN204991769U (en) | 2015-07-13 | 2015-07-13 | Lithium cell composite packaging functionalization plastic -aluminum membrane |
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| CN201520503064.3U CN204991769U (en) | 2015-07-13 | 2015-07-13 | Lithium cell composite packaging functionalization plastic -aluminum membrane |
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| CN204991769U true CN204991769U (en) | 2016-01-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966800A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Functional composite packaging aluminum plastic film for lithium battery |
| CN111540848A (en) * | 2020-05-14 | 2020-08-14 | 华鼎国联四川动力电池有限公司 | Lithium ion battery aluminum plastic film and preparation method thereof |
| CN114520367A (en) * | 2022-01-20 | 2022-05-20 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
-
2015
- 2015-07-13 CN CN201520503064.3U patent/CN204991769U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966800A (en) * | 2015-07-13 | 2015-10-07 | 苏州锂盾储能材料技术有限公司 | Functional composite packaging aluminum plastic film for lithium battery |
| CN111540848A (en) * | 2020-05-14 | 2020-08-14 | 华鼎国联四川动力电池有限公司 | Lithium ion battery aluminum plastic film and preparation method thereof |
| CN114520367A (en) * | 2022-01-20 | 2022-05-20 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
| CN114520367B (en) * | 2022-01-20 | 2023-07-18 | 上海紫江新材料科技股份有限公司 | Preparation method of electrolyte corrosion resistant aluminum-plastic film with fluorine-containing inner surface |
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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, Huzhou City, 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 |