CN203406336U - Punched package film for polymer lithium battery - Google Patents
Punched package film for polymer lithium battery Download PDFInfo
- Publication number
- CN203406336U CN203406336U CN201320419916.1U CN201320419916U CN203406336U CN 203406336 U CN203406336 U CN 203406336U CN 201320419916 U CN201320419916 U CN 201320419916U CN 203406336 U CN203406336 U CN 203406336U
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- China
- Prior art keywords
- layer
- lithium battery
- poly
- punching press
- packaging film
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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
Abstract
The utility model relates to the technical field of production of thin films and particularly relates to a punched package film for a polymer lithium battery. The punched package film for the polymer lithium battery comprises an outer layer, an aluminum foil and an inner layer, wherein the outer layer is connected with the inner layer by the aluminum foil; the outer layer comprises an outer surface layer and a first inner bonding layer; one face of the aluminum foil is glued with an anti-corrosion layer; the inner layer comprises a second inner bonding layer and an inner surface layer; the outer surface layer is connected with the anti-corrosion layer by the first inner bonding layer; the aluminum foil is connected with the inner surface layer by the second inner bonding layer. According to the punched package film for the polymer lithium battery, micro-concave coating dry type compounding and hot seal compounding are realized on a core layer, the outer surface layer and the inner surface layer by the aluminum foil containing the anti-corrosion layer, a multilayered co-extruded modified enhanced polyester film, a special casting polypropylene film and a polyamides polymer, so that the punched package film for the polymer lithium battery, which is high in hot sealing strength, good in electrolyte resistance and good in heat resistance, is prepared; good economic benefits are realized and a predicated aim is achieved.
Description
Technical field
The utility model relates to thin film fabrication techniques field, is specifically related to a kind of poly-lithium battery punching press packaging film.
Background technology
Development along with polymer Li-ion battery technology, aluminum-plastic composite membrane packaging material start extensive use in lithium-ions battery field, liquid lithium ion storage battery has started to adopt aluminum-plastic composite membrane to pack to replace box hat, adopts plastic-aluminum flexible packing material to do shell by the direction that is variety classes lithium-ions battery Future Development.
Because lithium-ions battery in use has special requirement to its housing material, lithium battery flexible packaging material is generally plastic-aluminum combined membrane structure at present, composite construction is generally three-decker, outer, aluminium foil, internal layer, skin refers to external protection or printed layers, internal layer refers to composite bed and hot sealing layer, by different combination process, complete, but the outer general single layer structure protective layer that adopts of lithium battery punching press packaging film in prior art, very easily water suction, make for a long time lithium battery be vulnerable to corrode, affect lithium battery useful life, and heat-resisting effect is poor etc. not enough.
Utility model content
The utility model provides a kind of poly-lithium battery punching press packaging film for the deficiency in background technology, object is: provide a kind of and have that heat seal strength is high, electrolyte resistance good, the polymer of Good Heat-resistance makes easily cold stamping shaped packaging film of lithium battery, has good economic benefits.
Technical solution of the present utility model:
A kind of poly-lithium battery punching press packaging film, comprise skin, aluminium foil and internal layer, described skin is connected with internal layer by aluminium foil, it is characterized in that: described skin comprises outer surface layer and the first interior adhesive layer, glue of described aluminium foil is connected with etch resistant layer, and described internal layer comprises the second interior adhesive layer and interior surface layers; Described outer surface layer is connected with etch resistant layer by the first interior adhesive layer, and described aluminium foil is connected with interior surface layers by the second interior adhesive layer.
Described outer surface layer is made by multi-layer co-extruded modified strengthening polyester film or polyamide polymers.
Described interior surface layers is cast polypropylene film.
Described the first interior adhesive layer and the second interior adhesive layer are the agent of thermoplasticity gluing.
It is compound that described outer surface layer and the first interior adhesive layer are realized nick coating dry type.
It is compound and form hot sealing layer that described interior surface layers and the second interior adhesive layer are realized nick coating dry type.
It is sandwich layer that glue of aluminium foil is connected with etch resistant layer whole.
The aluminium foil surface of described sandwich layer also adds the ethylene-vinyl alkoxide polymer containing etch resistant layer composition.
The beneficial effects of the utility model:
The utility model passes through with the aluminium foil containing etch resistant layer, multi-layer co-extruded modified strengthening polyester film, extraordinary cast polypropylene film, polyamide polymers in sandwich layer and outer surface layer and interior surface layers, realize nick coating dry type compound, seal compound, make and have that heat seal strength is high, electrolyte resistance good, the poly-lithium battery punching press packaging film of Good Heat-resistance, realize good economic benefits, accomplish the end in view.
Accompanying drawing explanation
Fig. 1 is the utility model poly-lithium battery punching press packaging film structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, specifically describe the utility model.
Aluminium foil, multi-layer co-extruded modified strengthening polyester film, extraordinary cast polypropylene film, the polyamide polymers of take containing etch resistant layer as shown in Figure 1: described poly-lithium battery punching press packaging film at least comprises six layers of structure, are raw material; Aluminium foil containing etch resistant layer 3 is sandwich layer 4, outer surface layer 1 adopts the agent of thermoplasticity gluing to form the first interior adhesive layer 2 and the second interior adhesive layer 5 and multi-layer co-extruded modified strengthening polyester film or polyamide polymers layer, realize nick coating dry type compound, interior surface layers 6 is compound for cast polypropylene film and the agent of thermoplasticity gluing realize nick coating dry type, formation hot sealing layer.
The multi-layer co-extruded modified strengthening polyester film of outer surface layer 1, by the co-extruded modified performances such as barrier, heat sealability, thermal endurance and anti-ultraviolet radiation that can further improve product, further extends lithium battery physical life.
The first interior adhesive layer 2 and the second interior adhesive layer 5 are formed by the agent of thermoplasticity gluing, realize nick coating dry type compound, casting polypropylene film layer with the aluminium foil of sandwich layer 4, the multi-layer co-extruded modified strengthening polyester film of outer surface layer 1 or polyamide polymers and interior surface layers 6, realize heat-sealing compound, make composite membrane there is higher heat seal strength, reach expection requirement.
To sum up, the utility model produces a desired effect.
Claims (8)
1. a poly-lithium battery punching press packaging film, comprise skin, aluminium foil and internal layer, described skin is connected with internal layer by aluminium foil, it is characterized in that: described skin comprises outer surface layer and the first interior adhesive layer, glue of described aluminium foil is connected with etch resistant layer, and described internal layer comprises the second interior adhesive layer and interior surface layers; Described outer surface layer is connected with etch resistant layer by the first interior adhesive layer, and described aluminium foil is connected with interior surface layers by the second interior adhesive layer.
2. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: described outer surface layer is made by multi-layer co-extruded modified strengthening polyester film or polyamide polymers.
3. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: described interior surface layers is cast polypropylene film.
4. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: described the first interior adhesive layer and the second interior adhesive layer are the agent of thermoplasticity gluing.
5. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: it is compound that described outer surface layer and the first interior adhesive layer are realized nick coating dry type.
6. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: it is compound and form hot sealing layer that described interior surface layers and the second interior adhesive layer are realized nick coating dry type.
7. a kind of poly-lithium battery punching press packaging film according to claim 1, is characterized in that: it is sandwich layer that glue of aluminium foil is connected with etch resistant layer whole.
8. a kind of poly-lithium battery punching press packaging film according to claim 7, is characterized in that: the aluminium foil surface of described sandwich layer also adds the ethylene-vinyl alkoxide polymer containing etch resistant layer composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419916.1U CN203406336U (en) | 2013-07-16 | 2013-07-16 | Punched package film for polymer lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419916.1U CN203406336U (en) | 2013-07-16 | 2013-07-16 | Punched package film for polymer lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406336U true CN203406336U (en) | 2014-01-22 |
Family
ID=49942257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320419916.1U Expired - Lifetime CN203406336U (en) | 2013-07-16 | 2013-07-16 | Punched package film for polymer lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406336U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356474A (en) * | 2016-11-02 | 2017-01-25 | 广东安德力新材料有限公司 | Aluminum plastic compound film with excellent heat sealing property and low-temperature flexibility |
| CN107974688A (en) * | 2017-11-02 | 2018-05-01 | 上海紫江新材料科技有限公司 | A kind of coating process of aluminium foil surface corrosion-resistant finishes |
| CN110048035A (en) * | 2019-04-02 | 2019-07-23 | 江阴长庚高科技材料有限公司 | High-barrier lithium battery seal film and preparation method thereof and aluminum-plastic composite membrane |
-
2013
- 2013-07-16 CN CN201320419916.1U patent/CN203406336U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356474A (en) * | 2016-11-02 | 2017-01-25 | 广东安德力新材料有限公司 | Aluminum plastic compound film with excellent heat sealing property and low-temperature flexibility |
| CN107974688A (en) * | 2017-11-02 | 2018-05-01 | 上海紫江新材料科技有限公司 | A kind of coating process of aluminium foil surface corrosion-resistant finishes |
| CN110048035A (en) * | 2019-04-02 | 2019-07-23 | 江阴长庚高科技材料有限公司 | High-barrier lithium battery seal film and preparation method thereof and aluminum-plastic composite membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |