CN204547233U - A kind of lithium battery plastic-aluminum packaging film - Google Patents
A kind of lithium battery plastic-aluminum packaging film Download PDFInfo
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- CN204547233U CN204547233U CN201520093737.2U CN201520093737U CN204547233U CN 204547233 U CN204547233 U CN 204547233U CN 201520093737 U CN201520093737 U CN 201520093737U CN 204547233 U CN204547233 U CN 204547233U
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Abstract
The utility model discloses a kind of lithium battery plastic-aluminum packaging film; described lithium battery plastic-aluminum packaging film has layer structure; described lithium battery plastic-aluminum packaging film has layer structure, comprises PA casting films external protection, adhesive layer, aluminium foil layer, PP leaching membrane layer, PE low ratio foamed film cushion, PP leaching membrane layer and CPP film hot sealing layer from outside to inside successively.The utility model has added PP leaching membrane layer, polyethylene low ratio foamed film cushion and PP leaching membrane layer successively by the inboard of the aluminium foil in lithium battery plastic-aluminum packaging film, wherein polyethylene low ratio foamed film cushion improves the buffer capacity of plastic-aluminum packaging film effectively, PP leaching membrane layer improves aluminium foil in plastic-aluminum packaging film and to be hit the intensity threshold of distortion and the adjacent layer that effectively bondd, thus substantially increases safety in utilization and the service life of lithium battery plastic-aluminum packaging film.
Description
Technical field
The utility model relates to a kind of lithium battery manufactured materials, is specifically related to a kind of lithium battery plastic-aluminum packaging film.
Background technology
Up to now, lithium battery is widely used in all kinds of small size digital product with high-energy-density, superior high and low temperature environment adaptive capacity.Its packaging adopted is replaced by soft plastic-aluminum packaging film external packing gradually from the hard box hat of low and middle-end, aluminum hull.Plastic-aluminum packaging film has pliability as the outer packaging bag of lithium battery, can discharge the supercharging that lithium battery in use surprisingly discharges gas generation, prevent battery explosion.This film material usually has the aluminium foil of high water vapor rejection and has excellent in chemical resistance, heat sealability and flexible plastic foil and be composited.
Although lithium battery encapsulation plastic-aluminum packaging film has higher chemical resistance, every wet, oxygen barrier, encapsulation cohesive force and can be explosion-proof, but wherein lithium battery encapsulation plastic-aluminum packaging film just easily makes the aluminium foil layer in plastic-aluminum packaging film produce micro-crack once produce bubbling after long-term use, and then causes the leakage of the interior liquid of inner packing even to cause blast.
In addition, lithium battery encapsulation plastic-aluminum packaging film, when being molded into lithium battery encapsulation outer bag, needs the active force born from the inside to the outside, also easily makes aluminium foil layer in plastic-aluminum packaging film produce folding line, affect the sealing of plastic-aluminum packaging film in this process.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides a kind of lithium battery plastic-aluminum packaging film, improves lithium battery plastic-aluminum packaging film and suppresses to produce the ability of bubbling, improves the sealing of plastic-aluminum packaging film.
For achieving the above object; the technical solution of the utility model is a kind of lithium battery plastic-aluminum packaging film of design; described lithium battery plastic-aluminum packaging film has layer structure, comprises PA casting films external protection, adhesive layer, aluminium foil layer, PP leaching membrane layer, PE low ratio foamed film cushion, PP leaching membrane layer and CPP film hot sealing layer from outside to inside successively.
Here, described adhesive layer can be selected to be a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive.
In order to improve the mechanical property of lithium battery plastic-aluminum packaging film, preferably, also there is PET casting films external protection in the outside of described PA casting films external protection by adhesive bond.On thickness preferably, the thickness of described PET casting films external protection is 20 ~ 40 microns.
On thickness preferably; the thickness of described CPP film hot sealing layer is 30 ~ 50 microns; the thickness of the described PP leaching membrane layer between described aluminium foil layer and described PE low ratio foamed film cushion is 10 ~ 15 microns; the thickness of the described PP leaching membrane layer between described PE low ratio foamed film cushion and described CPP film hot sealing layer is 20 ~ 40 microns; the thickness of described PE low ratio foamed film cushion is 5 ~ 30 microns; the thickness of described aluminium foil layer is 25 ~ 50 microns; the thickness of described PA casting films external protection is 20 ~ 40 microns, and the thickness of each described adhesive layer is 2 ~ 6 microns.
Advantage of the present utility model and beneficial effect are: the utility model has added PP leaching membrane layer successively by the inboard of the aluminium foil in lithium battery plastic-aluminum packaging film, polyethylene low ratio foamed film cushion, PP leaching membrane layer, wherein polyethylene low ratio foamed film cushion improves the buffer capacity of plastic-aluminum packaging film effectively, PP leaching membrane layer improve aluminium foil in plastic-aluminum packaging film be hit distortion intensity threshold and the adjacent layer that effectively bondd, and then inhibit because plastic-aluminum packaging film is because of use generation bubbling or because the reasons such as processing mode are to the damaging influence of aluminium foil generation contained in lithium battery plastic-aluminum packaging film.This lithium battery plastic-aluminum packaging film has high safety in utilization and long life.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the lithium battery plastic-aluminum packaging film in embodiment 1;
Fig. 2 is the cross section structure schematic diagram of the lithium battery plastic-aluminum packaging film in embodiment 2.
In figure: 1, PA casting films external protection; 2-1, the first adhesive layer; 2-2, the second adhesive layer; 3, aluminium foil layer; 4, a PP leaching membrane layer; 5, PE low ratio foamed film cushion; 6, the 2nd PP leaching membrane layer; 7, CPP film hot sealing layer; 8, PET casting films external protection.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
embodiment 1
The lithium battery plastic-aluminum packaging film that inventor proposes has layer structure; it sets gradually PA casting films external protection 1, first adhesive layer 2-1, aluminium foil layer 3, a PP leaching membrane layer 4, PE low ratio foamed film cushion the 5, the 2nd PP leaching membrane layer 6 and CPP film hot sealing layer 7 from outside to inside, as shown in Figure 1.
The wherein polyethylene low ratio foamed film that adopts of PE low ratio foamed film cushion 5, be commonly called as pearl paper, a kind of antidetonation buffering, antistatic, protection against the tide, heat insulation, anti-soda acid, the material of buffering antidetonation, thickness is 5 ~ 30 microns, play the effect of the buffer capacity strengthening plastic-aluminum packaging film here, thus for improving its explosion-proof when plastic-aluminum packaging film is packed as lithium battery, suppressing to produce bubbling and the deformation resistant improved when being processed into packaging bag body.One PP leaching membrane layer 4 plays the effect connecting aluminium foil layer 3 and PE low ratio foamed film cushion 5, and play improve aluminium foil layer 3 be hit distortion intensity threshold, and the promising effect being equipped with the plastic-aluminum packaging film reinforcement of PE low ratio foamed film cushion 5, thickness is selected 10 ~ 15 microns and is advisable, the blocked up shock-absorbing capacity then affecting PE low ratio foamed film cushion 5, crosses thin, does not have to improve aluminium foil layer 3 in plastic-aluminum packaging film and to be hit the effect of intensity threshold of distortion.2nd PP leaching membrane layer 6 plays the effect connecting CPP film hot sealing layer 7 and PE low ratio foamed film cushion 5, and thickness is selected 20 ~ 40 microns and is advisable.Each adhesive layer is a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive, and thickness is 2 ~ 6 microns, plays the effect of gluing adjacent two layers.PA casting films external protection 1 thickness should select 20 ~ 40 microns, plays protection plastic-aluminum packaging film and avoids because of active forces such as external scrapings and the effect of breakage.CPP film hot sealing layer 7 thickness is 30 ~ 50 microns, plays the effect of heat-sealing and liquid barrier.
The first leaching membrane layer 4, PE low ratio foamed film cushion 5 and the 2nd PP leaching membrane layer 6 has been added successively by the inboard of the aluminium foil layer 3 in lithium battery plastic-aluminum packaging film, effectively improve the buffer capacity of plastic-aluminum packaging film, plunger bond strength, therefore substantially increase safety in utilization and the service life of lithium battery plastic-aluminum packaging film.
embodiment 2
As different from Example 1, in the present embodiment, the outside of PA casting films external protection 1 also has thickness to be the PET casting films external protection 8 of 20 ~ 40 microns, to improve the mechanical strength of lithium battery plastic-aluminum packaging film by adhesive bond.As shown in Figure 2, lithium battery plastic-aluminum packaging film its set gradually PET casting films external protection 8, first adhesive layer 2-1, PA casting films external protection 1, second adhesive layer 2-2, aluminium foil layer 3, a PP leaching membrane layer 4, PE low ratio foamed film cushion the 5, the 2nd PP leaching membrane layer 6 and CPP film hot sealing layer 7 from outside to inside.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a lithium battery plastic-aluminum packaging film; it is characterized in that; described lithium battery plastic-aluminum packaging film has layer structure, comprises PA casting films external protection, adhesive layer, aluminium foil layer, PP leaching membrane layer, PE low ratio foamed film cushion, PP leaching membrane layer and CPP film hot sealing layer from outside to inside successively.
2. lithium battery plastic-aluminum packaging film as claimed in claim 1, is characterized in that, described adhesive layer is a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive.
3. lithium battery plastic-aluminum packaging film as claimed in claim 1, it is characterized in that, also there is PET casting films external protection in the outside of described PA casting films external protection by adhesive bond.
4. lithium battery plastic-aluminum packaging film as claimed in claim 3, it is characterized in that, the thickness of described PET casting films external protection is 20 ~ 40 microns.
5. the lithium battery plastic-aluminum packaging film as described in Claims 1-4 any one, it is characterized in that, the thickness of described CPP film hot sealing layer is 30 ~ 50 microns, the thickness of the described PP leaching membrane layer between described aluminium foil layer and described PE low ratio foamed film cushion is 10 ~ 15 microns, the thickness of the described PP leaching membrane layer between described PE low ratio foamed film cushion and described CPP film hot sealing layer is 20 ~ 40 microns, the thickness of described PE low ratio foamed film cushion is 5 ~ 30 microns, the thickness of described aluminium foil layer is 25 ~ 50 microns, the thickness of described PA casting films external protection is 20 ~ 40 microns, the thickness of each described adhesive layer is 2 ~ 6 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093737.2U CN204547233U (en) | 2015-02-10 | 2015-02-10 | A kind of lithium battery plastic-aluminum packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093737.2U CN204547233U (en) | 2015-02-10 | 2015-02-10 | A kind of lithium battery plastic-aluminum packaging film |
Publications (1)
| Publication Number | Publication Date |
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| CN204547233U true CN204547233U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520093737.2U Active CN204547233U (en) | 2015-02-10 | 2015-02-10 | A kind of lithium battery plastic-aluminum packaging film |
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2015
- 2015-02-10 CN CN201520093737.2U patent/CN204547233U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214400, Jiangsu, Wuxi Jiangyin mayor Jing Jing Tong Kong Road, No. 26 Patentee after: JIANGYIN JUNCHI COMPOSITE MATERIAL CO.,LTD. Address before: 214400, Jiangsu, Wuxi Jiangyin mayor Jing Jing Tong Kong Road, No. 26 Patentee before: Jiangyin Junchi Photoelectric Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20151110 Address after: 214400, Jiangsu, Wuxi Jiangyin mayor Jing Jing Tong Kong Road, No. 26 Patentee after: JIANGYIN SUDA HUICHENG COMPOSITE MATERIAL CO.,LTD. Address before: 214400, Jiangsu, Wuxi Jiangyin mayor Jing Jing Tong Kong Road, No. 26 Patentee before: JIANGYIN JUNCHI COMPOSITE MATERIAL CO.,LTD. |
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| CP03 | Change of name, title or address |
Address after: 214400 No. 68-1, Tong'an Road, Qingyang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: JIANGYI SUDA HUICHENG COMPOSITE MATERIAL CO.,LTD. Address before: No. 26, Tonggang Road, Changjing Town, Jiangyin City, Wuxi City, Jiangsu Province, 214400 Patentee before: JIANGYIN SUDA HUICHENG COMPOSITE MATERIAL CO.,LTD. |
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| CP03 | Change of name, title or address |