CN204558536U - A kind of antiseepage high sealing lithium battery aluminum-plastic film - Google Patents
A kind of antiseepage high sealing lithium battery aluminum-plastic film Download PDFInfo
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- CN204558536U CN204558536U CN201520080384.2U CN201520080384U CN204558536U CN 204558536 U CN204558536 U CN 204558536U CN 201520080384 U CN201520080384 U CN 201520080384U CN 204558536 U CN204558536 U CN 204558536U
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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 a kind of antiseepage high sealing lithium battery aluminum-plastic film; described lithium battery aluminum-plastic film has layer structure; comprise external protection, the first adhesive layer, aluminizer, the second adhesive layer, aluminium foil layer, the 3rd 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 a kind of antiseepage high sealing lithium battery aluminum-plastic 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 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 lithium battery aluminum-plastic film.
For achieving the above object; the technical solution of the utility model is a kind of antiseepage high sealing lithium battery aluminum-plastic film of design; described lithium battery aluminum-plastic film has layer structure; comprise PA casting films external protection, the first adhesive layer, aluminizer, the second adhesive layer, aluminium foil layer, the 3rd 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.
, the thickness of described hot sealing layer is 20 ~ 40 microns on thickness preferably, and the thickness of described aluminium foil layer is 15 ~ 35 microns, and the thickness of described aluminizer is 15 ~ 25 microns, and the thickness of described external protection is 18 ~ 35 microns; The thickness of described first, second, third 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 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 lithium battery aluminum-plastic film in embodiment 1;
Fig. 2 is the cross section structure schematic diagram of the lithium battery aluminum-plastic film in embodiment 2.
In figure: 1, external protection; 2, the first adhesive layer; 3, aluminizer; 4, the second adhesive layer; 5, aluminium foil layer; 6, the 3rd adhesive layer; 7, hot sealing layer; 31, evaporation substrate layer; 32, aluminium coated; 33, 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 PA casting films external protection 1, first adhesive layer 2, aluminizer 3, second adhesive layer 4, aluminium foil layer 5, the 3rd adhesive layer 6 and CPP casting films hot sealing layer 7 from top to bottom successively; Wherein aluminizer 3 comprises BOPA evaporation substrate layer 31 and the evaporation aluminium coated 32 at evaporation substrate layer 31 1 side surface, aluminium coated 32 is towards the side of aluminium foil layer 5, be bonded together, jointly as the barrier material of lithium battery aluminum-plastic film with aluminium foil layer 5 by the second adhesive layer 4.After aluminium foil layer 5 and aluminizer 3 bond; improve its barrier; effective intercepted individual layer aluminium foil 5 pin through aqueous vapor; improve its mechanical property such as toughness and intensity in addition; facilitate itself and external protection 1 and the compound with hot sealing layer 7; 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.
As a supplement, evaporation substrate layer 31, except selecting BOPA, can also select BOPET; But BOPA can form better bonding with external protection 1 than BOPET by contrast.
embodiment 2
As shown in Figure 2, lithium battery aluminum-plastic film has layer structure, comprises PA casting films external protection 1, first adhesive layer 2, aluminizer 3, second adhesive layer 4, aluminium foil layer 5, the 3rd adhesive layer 6 and CPP casting films hot sealing layer 7 from top to bottom successively; The corona layer 33 that wherein aluminizer 3 comprises CPP evaporation substrate layer 31, a side surface of evaporation substrate layer 31 is formed by corona and the aluminium coated 32 of evaporation on corona layer 33 opposite side surface, aluminium coated 32 is towards the side of aluminium foil layer 5, be bonded together, jointly as the barrier material of lithium battery aluminum-plastic film with aluminium foil layer 5 by the second adhesive layer 4.After aluminium foil layer 5 and aluminizer 3 bond; improve its barrier; effective intercepted individual layer aluminium foil 5 pin through aqueous vapor; improve its mechanical property such as toughness and intensity in addition; facilitate itself and external protection 1 and the compound with hot sealing layer 7; thus overcome, because of the shortcoming such as aluminium foil 5 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.
As a supplement, evaporation substrate layer 31, except selecting CPP, can also select PE.
In embodiment 1 and 2, on thickness, the thickness of hot sealing layer 7 can be selected to be 20 ~ 40 microns, the thickness of aluminium foil layer 5 is 15 ~ 35 microns, and the thickness of aluminizer 3 is 15 ~ 25 microns, and the thickness of external protection 1 is 18 ~ 35 microns; The thickness that first adhesive layer 2, second bonds the 4, the 3rd adhesive layer 6 is 2 ~ 6 microns.For example, the thickness of hot sealing layer 7 can be selected to be 35 microns, the thickness of aluminium foil layer 5 is 35 microns, and the thickness of aluminizer 3 is 20 microns, and the thickness of external protection 1 is 25 microns; The thickness that first adhesive layer 2, second bonds the 4, the 3rd adhesive layer 6 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. an antiseepage high sealing lithium battery aluminum-plastic film; it is characterized in that; described lithium battery aluminum-plastic film has layer structure; comprise PA casting films external protection, the first adhesive layer, aluminizer, the second adhesive layer, aluminium foil layer, the 3rd 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. antiseepage high sealing lithium battery aluminum-plastic film as claimed in claim 1, it is characterized in that, described evaporation substrate layer is selected from the one in BOPET, BOPA.
3. antiseepage high sealing lithium battery aluminum-plastic film as claimed in claim 1, it is characterized in that, described evaporation substrate layer is selected from the one in CPP, PE.
4. antiseepage high sealing lithium battery aluminum-plastic film 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. antiseepage high sealing lithium battery aluminum-plastic film as claimed in claim 4, it is characterized in that, described evaporation substrate layer is CPP.
6. antiseepage high sealing lithium battery aluminum-plastic film as claimed in claim 5, it is characterized in that, the thickness of described hot sealing layer is 20 ~ 40 microns, and the thickness of described aluminium foil layer is 15 ~ 35 microns, the thickness of described aluminizer is 15 ~ 25 microns, and the thickness of described external protection is 18 ~ 35 microns; The thickness of described first, second, third adhesive layer is 2 ~ 6 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080384.2U CN204558536U (en) | 2015-02-05 | 2015-02-05 | A kind of antiseepage high sealing lithium battery aluminum-plastic film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080384.2U CN204558536U (en) | 2015-02-05 | 2015-02-05 | A kind of antiseepage high sealing lithium battery aluminum-plastic film |
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| CN204558536U true CN204558536U (en) | 2015-08-12 |
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Cited By (6)
| 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 |
| CN107799674A (en) * | 2017-09-29 | 2018-03-13 | 易佰特新能源科技有限公司 | A kind of manufacture method of lithium ion battery plastic-aluminum packaging film |
| CN108045026A (en) * | 2017-12-08 | 2018-05-18 | 苏州爱康薄膜新材料有限公司 | Fire-retardant lithium battery encapsulation composite membrane of a kind of high water resistant and preparation method thereof |
| CN108886113A (en) * | 2016-04-01 | 2018-11-23 | 凸版印刷株式会社 | The manufacturing method of electrical storage device encapsulating material and electrical storage device encapsulating material |
| 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 |
| CN111020521A (en) * | 2019-11-26 | 2020-04-17 | 浙江长宇新材料有限公司 | Preparation method of metal-plated film for battery |
-
2015
- 2015-02-05 CN CN201520080384.2U patent/CN204558536U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886113A (en) * | 2016-04-01 | 2018-11-23 | 凸版印刷株式会社 | The manufacturing method of electrical storage device encapsulating material and electrical storage device encapsulating material |
| CN108886113B (en) * | 2016-04-01 | 2022-04-26 | 凸版印刷株式会社 | Power storage device packaging material and method for manufacturing power storage device packaging material |
| 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 |
| CN107799674A (en) * | 2017-09-29 | 2018-03-13 | 易佰特新能源科技有限公司 | A kind of manufacture method of lithium ion battery plastic-aluminum packaging film |
| CN108045026A (en) * | 2017-12-08 | 2018-05-18 | 苏州爱康薄膜新材料有限公司 | Fire-retardant lithium battery encapsulation composite membrane of a kind of high water resistant and preparation method thereof |
| CN111020521A (en) * | 2019-11-26 | 2020-04-17 | 浙江长宇新材料有限公司 | Preparation method of metal-plated film for 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: 20151110 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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