CN204558539U - The large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing - Google Patents
The large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing Download PDFInfo
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- CN204558539U CN204558539U CN201520080410.1U CN201520080410U CN204558539U CN 204558539 U CN204558539 U CN 204558539U CN 201520080410 U CN201520080410 U CN 201520080410U CN 204558539 U CN204558539 U CN 204558539U
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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 discloses the large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing; described lithium battery aluminum-plastic film has layer structure; comprise PET casting films external protection, the first adhesive layer, PA casting films external protection, the second adhesive layer, aluminizer, the 3rd adhesive layer, aluminium foil layer, the 4th adhesive layer and CPP casting films hot sealing layer from top to bottom successively; wherein aluminizer comprises evaporation substrate layer and the evaporation aluminium coated at evaporation substrate layer one side surface, and described aluminium coated is towards the side of described aluminium foil layer.The utility model is share by aluminium foil layer and aluminizer and bonds as barrier layer, and the aluminium coated wherein in aluminizer does not significantly improve aluminium consumption amount, but share the sealing after the barrier and packaging lithium battery considerably improving aluminum plastic film with aluminium foil layer.This lithium battery aluminum-plastic film paracentesis resistance is better, aqueous vapor barrier is higher, fail safe is stronger, longer service life.
Description
Technical field
The utility model relates to a kind of lithium battery manufactured materials, is specifically related to the large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing.
Background technology
Up to now, lithium battery is widely used in all kinds of middle-size and small-size digital product with high-energy-density, superior high and low temperature environment adaptive capacity.Its packaging adopted is replaced by soft aluminum plastic film external packing gradually from the hard box hat of low and middle-end, aluminum hull.Aluminum plastic 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 film and be composited.
Although aluminum-plastic membrane used for packaging lithium battery has higher chemical resistance, every wet, oxygen barrier, encapsulation cohesive force and can be explosion-proof, but wherein rise barrier, moisture resistance, light-proofness aluminium foil at thinner thickness particularly as multi-band during below 0.2mm has inevitable printing opacity aperture, be commonly called as pin hole, the existence of pin hole has a strong impact on barrier and the chemical resistance of aluminium foil, and then affects the sealing of aluminum plastic film as the outer bag material of lithium battery.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides a kind of antiseepage high sealing large-scale lithium battery aluminum-plastic film.
For achieving the above object; the technical solution of the utility model is the large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing of design; described lithium battery aluminum-plastic film has layer structure; comprise PET casting films external protection, the first adhesive layer, PA casting films external protection, the second adhesive layer, aluminizer, the 3rd adhesive layer, aluminium foil layer, the 4th adhesive layer and CPP casting films hot sealing layer from top to bottom successively; wherein aluminizer comprises evaporation substrate layer and the evaporation aluminium coated at evaporation substrate layer one side surface, and described aluminium coated is towards the side of described aluminium foil layer.
In order to simplify manufacture process, preferably, described evaporation substrate layer is selected from the one in BOPET, BOPA.Particularly preferably, described evaporation substrate layer is BOPA, and itself and external protection can form good ply adhesion.
Or preferably, described evaporation substrate layer is selected from the one in CPP, PE.Further preferably, described evaporation substrate layer is formed with corona layer for the surface of evaporation metal by corona; Described aluminium coated evaporation is on described corona layer.By forming corona layer, considerably improve the adhesion strength between aluminium coated and evaporation substrate layer.For improving the sealing of adhesiveness and raising aluminum plastic film, preferably, described evaporation substrate layer is CPP.Such evaporation substrate layer can form good bonding with hot hot sealing layer, improves bond strength between layers.
On thickness preferably; the thickness of described hot sealing layer is 20 ~ 40 microns; the thickness of described aluminium foil layer is 15 ~ 35 microns; the thickness of described aluminizer is 15 ~ 25 microns; the thickness of described PA casting films external protection is 10 ~ 30 microns; the thickness of described PET casting films external protection is 10 ~ 30 microns, and the thickness of described first, second, third, fourth adhesive layer is 2 ~ 6 microns.
Advantage of the present utility model and beneficial effect are: the utility model is share by aluminium foil layer and aluminizer and bonds as barrier layer, aluminium coated wherein in aluminizer does not significantly improve aluminium consumption amount, but share the sealing after the barrier and packaging lithium battery considerably improving aluminum plastic film with aluminium foil layer.This large-scale lithium battery aluminum-plastic film paracentesis resistance is better, aqueous vapor barrier is higher, fail safe is stronger, longer service life.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the large-scale lithium battery aluminum-plastic film in embodiment 1;
Fig. 2 is the cross section structure schematic diagram of the large-scale lithium battery aluminum-plastic film in embodiment 2.
In figure: 1, PET casting films external protection; 2, the first adhesive layer; 3, PA casting films external protection; 4, the second adhesive layer; 5, aluminizer; 6, the 3rd adhesive layer; 7, aluminium foil layer; 8, the 4th adhesive layer; 9, hot sealing layer; 51, evaporation substrate layer; 52, aluminium coated; 53, corona layer.
Embodiment
Below in conjunction with drawings and Examples, embodiment 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 range of the present utility model with this.
embodiment 1
As shown in Figure 1, lithium battery aluminum-plastic film has layer structure, comprises PET casting films external protection 1, first adhesive layer 2, PA casting films external protection 3, second adhesive layer 4, aluminizer 5, the 3rd adhesive layer 6, aluminium foil layer 7, the 4th adhesive layer 8 and CPP casting films hot sealing layer 9 from top to bottom successively; Wherein aluminizer 5 comprises BOPA evaporation substrate layer 51 and the evaporation aluminium coated 52 at evaporation substrate layer 51 1 side surface, aluminium coated 52 is towards the side of aluminium foil layer 7, be bonded together, jointly as the barrier material of lithium battery aluminum-plastic film with aluminium foil layer 7 by the 3rd adhesive layer 6.After aluminium foil layer 7 and aluminizer 5 bond; improve its barrier; effective intercepted individual layer aluminium foil pin through aqueous vapor; improve its mechanical property such as toughness and intensity in addition; facilitate itself and external protection and the compound with hot sealing layer 9; thus overcome, because of the shortcoming such as aluminium foil frangible not folding, folding line occurs in recombination process, thus improve barrier properties and the sealing of finished product lithium battery aluminum-plastic film outer bag.
Here; external protection is made up of two-layer casting films, comprises PET casting films external protection 1 and PA casting films external protection 3, thus effectively improves plastic-aluminum film strength; improve the explosion-proof of aluminum plastic film, the risk that simultaneously also inhibit the aluminium foil layer 7 in aluminum plastic film to crack by external force better.
As a supplement, except evaporation substrate layer 51 is except selecting BOPA, BOPET can also be selected; But BOPA can form better bonding with PA casting films external protection 3 than BOPET by contrast.
embodiment 2
As shown in Figure 2, lithium battery aluminum-plastic film has layer structure, comprises PET casting films external protection 1, first adhesive layer 2, PA casting films external protection 3, second adhesive layer 4, aluminizer 5, the 3rd adhesive layer 6, aluminium foil layer 7, the 4th adhesive layer 8 and CPP casting films hot sealing layer 9 from top to bottom successively; The corona layer 53 that wherein aluminizer 5 comprises CPP evaporation substrate layer 51, a side surface of evaporation substrate layer 51 is formed by corona and the aluminium coated 52 of evaporation on corona layer 53 opposite side surface, aluminium coated 52 is towards the side of aluminium foil layer 7, be bonded together, jointly as the barrier material of lithium battery aluminum-plastic film with aluminium foil layer 7 by the 3rd adhesive layer 6.After aluminium foil layer 7 and aluminizer 5 bond; improve its barrier; effective intercepted individual layer aluminium foil pin through aqueous vapor; improve its mechanical property such as toughness and intensity in addition; facilitate itself and external protection and the compound with hot sealing layer 9; thus overcome, because of the shortcoming such as aluminium foil frangible not folding, folding line occurs in recombination process, thus improve barrier properties and the sealing of finished product lithium battery aluminum-plastic film outer bag.
Identical with embodiment 1; here external protection is made up of two-layer casting films; comprise PET casting films external protection 1 and PA casting films external protection 3; thus effectively improve plastic-aluminum film strength; improve the explosion-proof of aluminum plastic film, the risk that simultaneously also inhibit the aluminium foil layer 7 in aluminum plastic film to crack by external force better.
As a supplement, evaporation substrate layer 51, except selecting CPP, can also select PE.
In embodiment 1 and 2; on thickness; the thickness of hot sealing layer 9 can be selected to be 20 ~ 40 microns; the thickness of aluminium foil layer 7 is 15 ~ 35 microns; the thickness of aluminizer 5 is 15 ~ 25 microns; the thickness of PA casting films external protection 3 is 10 ~ 30 microns, and the thickness of PET casting films external protection 1 is 10 ~ 30 microns, and the first adhesive layer 2, second bonds the 4, the 3rd adhesive layer 6, the thickness of the 4th adhesive layer 8 is 2 ~ 6 microns.For example, the thickness of hot sealing layer 9 can be selected to be 35 microns, the thickness of aluminium foil layer 7 is 35 microns, and the thickness of aluminizer 5 is 20 microns, and the thickness of PA casting films external protection 3 is 20 microns, and the thickness of PET casting films external protection 1 is 13 microns; First adhesive layer 2, second bonds the 4, the 3rd adhesive layer 6, the thickness of the 4th adhesive layer 8 is 4 microns.
The above is only preferred implementation 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 range of the present utility model.
Claims (6)
1. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing; it is characterized in that; described lithium battery aluminum-plastic film has layer structure; comprise PET casting films external protection, the first adhesive layer, PA casting films external protection, the second adhesive layer, aluminizer, the 3rd adhesive layer, aluminium foil layer, the 4th adhesive layer and CPP casting films hot sealing layer from top to bottom successively; wherein aluminizer comprises evaporation substrate layer and the evaporation aluminium coated at evaporation substrate layer one side surface, and described aluminium coated is towards the side of described aluminium foil layer.
2. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing as claimed in claim 1, it is characterized in that, described evaporation substrate layer is selected from the one in BOPET, BOPA.
3. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing as claimed in claim 1, it is characterized in that, described evaporation substrate layer is selected from the one in CPP, PE.
4. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing as claimed in claim 3, is characterized in that, the surface that described evaporation substrate layer is used for evaporation metal is formed with corona layer by corona; Described aluminium coated evaporation is on described corona layer.
5. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing as claimed in claim 4, it is characterized in that, described evaporation substrate layer is CPP.
6. the large-scale lithium battery aluminum-plastic film of antiseepage high sealing as claimed in claim 5; it is characterized in that; the thickness of described hot sealing layer is 20 ~ 40 microns; the thickness of described aluminium foil layer is 15 ~ 35 microns; the thickness of described aluminizer is 15 ~ 25 microns; the thickness of described PA casting films external protection is 10 ~ 30 microns, and the thickness of described PET casting films external protection is 10 ~ 30 microns, and the thickness of described first, second, third, fourth adhesive layer is 2 ~ 6 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080410.1U CN204558539U (en) | 2015-02-05 | 2015-02-05 | The large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520080410.1U CN204558539U (en) | 2015-02-05 | 2015-02-05 | The large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing |
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| CN204558539U true CN204558539U (en) | 2015-08-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273898A (en) * | 2016-07-29 | 2017-01-04 | 无锡市华泰医药包装有限公司 | Lithium battery encapsulation clad aluminum plastic film |
| CN110383523A (en) * | 2017-03-08 | 2019-10-25 | 大日本印刷株式会社 | Battery housing material, the manufacturing method of battery housing material and battery |
| CN110885964A (en) * | 2019-11-26 | 2020-03-17 | 浙江长宇新材料有限公司 | One-time evaporation preparation method of metal-plated film for battery |
| CN113471580A (en) * | 2021-06-01 | 2021-10-01 | 武汉泰宇汽车零部件有限公司 | Battery case and battery |
-
2015
- 2015-02-05 CN CN201520080410.1U patent/CN204558539U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273898A (en) * | 2016-07-29 | 2017-01-04 | 无锡市华泰医药包装有限公司 | Lithium battery encapsulation clad aluminum plastic film |
| CN110383523A (en) * | 2017-03-08 | 2019-10-25 | 大日本印刷株式会社 | Battery housing material, the manufacturing method of battery housing material and battery |
| CN110383523B (en) * | 2017-03-08 | 2022-08-16 | 大日本印刷株式会社 | Battery outer packaging material, method for producing battery outer packaging material, and battery |
| CN110885964A (en) * | 2019-11-26 | 2020-03-17 | 浙江长宇新材料有限公司 | One-time evaporation preparation method of metal-plated film for battery |
| CN113471580A (en) * | 2021-06-01 | 2021-10-01 | 武汉泰宇汽车零部件有限公司 | Battery case and battery |
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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: 20151113 Address after: 214400, Jiangsu, Jiangyin province 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: 214400 No.26 Tonggang Road, Changjing Town, Jiangyin, Jiangsu Province Patentee before: JIANGYIN SUDA HUICHENG COMPOSITE MATERIAL CO.,LTD. |
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| CP03 | Change of name, title or address |