CN204558540U - A kind of lithium battery aluminum-plastic film containing heat shrink - Google Patents
A kind of lithium battery aluminum-plastic film containing heat shrink Download PDFInfo
- Publication number
- CN204558540U CN204558540U CN201520080416.9U CN201520080416U CN204558540U CN 204558540 U CN204558540 U CN 204558540U CN 201520080416 U CN201520080416 U CN 201520080416U CN 204558540 U CN204558540 U CN 204558540U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- plastic film
- layer
- battery aluminum
- thermal contraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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 discloses a kind of lithium battery aluminum-plastic film containing heat shrink, described lithium battery aluminum-plastic film has layer structure, comprises PA casting films external protection, adhesive layer, thermal contraction rete, adhesive layer, aluminium foil layer, adhesive layer, CPP film hot sealing layer from outside to inside successively; Described adhesive layer is a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive, TPU PUR.The utility model has added thermal contraction rete by the outside of the aluminium foil in lithium battery aluminum-plastic film, its heat-shrinkable had aluminum plastic film as lithium battery packaging film and be heated pre-generated bubbling time can there is thermal contraction, aluminium foil layer and inner side thereof are produced to the stress of thermal contraction, pressure in bubbling is produced to offset, thus inhibit the generation of bubbling, improve safety in utilization and the useful life of lithium battery aluminum-plastic 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 aluminum-plastic film containing heat shrink.
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 film 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.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides a kind of lithium battery aluminum-plastic film containing heat shrink, improves lithium battery aluminum-plastic 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 aluminum-plastic film containing heat shrink of design, described lithium battery aluminum-plastic film has layer structure, comprises PA casting films external protection, adhesive layer, thermal contraction rete, adhesive layer, aluminium foil layer, adhesive layer, CPP film hot sealing layer from outside to inside successively; Described adhesive layer is a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive, TPU PUR.
In order to improve the mechanical strength of aluminum plastic film, preferably, the outside of described PA casting films external protection is also bonded with PET casting films external protection.On thickness, the thickness of preferred described PET casting films external protection is 20 ~ 40 microns.
For the ease of shaping, reduce costs, preferably, described thermal contraction rete is the Multi-layer blown film film containing polyvinylidene chloride microbedding.Further preferably, described thermal contraction rete is disposed with polyethylene microbedding, ethylene-vinyl acetate copolymer microbedding, polyvinylidene chloride microbedding, ethylene-vinyl acetate copolymer microbedding and polyethylene microbedding from outside to inside.
On thickness; preferably; the thickness of described CPP film hot sealing layer is 30 ~ 50 microns; the thickness of described aluminium foil layer is 25 ~ 50 microns; the thickness of described thermal contraction rete is 20 ~ 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 thermal contraction rete by the outside of the aluminium foil in lithium battery aluminum-plastic film, its heat-shrinkable had aluminum plastic film as lithium battery packaging film and be heated pre-generated bubbling time can there is thermal contraction, aluminium foil layer and inner side thereof are produced to the stress of thermal contraction, pressure in bubbling is produced to offset, thus inhibit the generation of bubbling, improve safety in utilization and the useful life of lithium battery aluminum-plastic film.
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;
Fig. 3 is the cross section structure schematic diagram of the lithium battery aluminum-plastic film in embodiment 3.
In figure: 1, PA casting films external protection; 2-1, the first adhesive layer; 2-2, the second adhesive layer; 2-3, the 3rd adhesive layer; 2-4, the 4th adhesive layer; 3, thermal contraction rete; 4, aluminium foil layer; 5, CPP film hot sealing layer; 6, PET casting films external protection; 31, the first polyethylene microbedding; 32, the first ethylene-vinyl acetate copolymer microbedding; 33, polyvinylidene chloride microbedding; 34, the second ethylene-vinyl acetate copolymer microbedding; 35, the second polyethylene microbedding.
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
The lithium battery aluminum-plastic film that inventor proposes has layer structure, and it sets gradually PA casting films external protection 1, first adhesive layer 2-1, thermal contraction rete 3, second adhesive layer 2-2, aluminium foil layer 4, the 3rd adhesive layer 2-3, CPP film hot sealing layer 5 from outside to inside.
Wherein thermal contraction rete 3 is that 50 ~ 100 DEG C of scopes can the heat shrink films of thermal contraction; In the present embodiment, thermal contraction rete 3 selects PVC heat shrink films, and thickness is 20 ~ 50 microns; By the thermal contraction of thermal contraction rete 3 in aluminum plastic film, its convergent force produced can resist the interior pressure of uprushing that aluminum plastic film bears to a certain extent, thus suppresses aluminum plastic film to produce bubbling.In addition, PA casting films external protection 1 plays protection plastic-aluminum packaging film and avoids because of active forces such as external scrapings and the effect of breakage, and thickness is selected 20 ~ 40 microns and is advisable.Each adhesive layer plays the effect of bonding adjacent two layers, selects in polyurethane adhesive, epoxyn, acrylic resin adhesive, TPU PUR a kind of, and thickness is selected 2 ~ 6 microns and is advisable.Aluminium foil layer 4 plays the effect of obstruct, shading, and thickness is selected 25 ~ 50 microns and is advisable.CPP film hot sealing layer 5, plays the effect of heat-sealing and liquid barrier, and thickness is selected 30 ~ 50 microns and is advisable.
embodiment 2
As different from Example 1, in the present embodiment, in order to improve the mechanical strength of lithium battery aluminum-plastic film,
The outside of PA casting films external protection 1 is also bonded with the PET casting films external protection 6 that thickness is 20 ~ 40 microns.As shown in Figure 2, lithium battery aluminum-plastic film sets gradually PET casting films external protection 6, first adhesive layer 2-1, PA casting films external protection 1, second adhesive layer 2-2, thermal contraction rete 3, the 3rd adhesive layer 2-3, aluminium foil layer 4, the 4th adhesive layer 2-4, CPP film hot sealing layer 5 from outside to inside.
embodiment 3
As different from Example 2, the present embodiment improves the structure of thermal contraction rete 3.In the present embodiment, thermal contraction rete 3 is not single layer structure, and is select Multi-layer blown film film.As shown in Figure 3, thermal contraction rete 3 is disposed with the first polyethylene microbedding 31, first ethylene-vinyl acetate copolymer microbedding 32, polyvinylidene chloride microbedding 33, second ethylene-vinyl acetate copolymer microbedding 34 and the second polyethylene microbedding 35 from outside to inside.Owing to being Multi-layer blown film film, and containing polyvinylidene chloride microbedding, greatly reduce cost of material, and be easier to processing.
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 lithium battery aluminum-plastic film containing heat shrink, it is characterized in that, described lithium battery aluminum-plastic film has layer structure, comprises PA casting films external protection, adhesive layer, thermal contraction rete, adhesive layer, aluminium foil layer, adhesive layer, CPP film hot sealing layer from outside to inside successively; Described adhesive layer is a kind of in polyurethane adhesive, epoxyn, acrylic resin adhesive, TPU PUR.
2. the lithium battery aluminum-plastic film containing heat shrink as claimed in claim 1, it is characterized in that, the outside of described PA casting films external protection is also bonded with PET casting films external protection.
3. the lithium battery aluminum-plastic film containing heat shrink as claimed in claim 2, it is characterized in that, the thickness of described PET casting films external protection is 20 ~ 40 microns.
4. the lithium battery aluminum-plastic film containing heat shrink as claimed in claim 1, it is characterized in that, described thermal contraction rete is the Multi-layer blown film film containing polyvinylidene chloride microbedding.
5. the lithium battery aluminum-plastic film containing heat shrink as claimed in claim 4, it is characterized in that, described thermal contraction rete is disposed with polyethylene microbedding, ethylene-vinyl acetate copolymer microbedding, polyvinylidene chloride microbedding, ethylene-vinyl acetate copolymer microbedding and polyethylene microbedding from outside to inside.
6. the lithium battery aluminum-plastic film containing heat shrink as described in claim 1 to 5 any one; it is characterized in that; the thickness of described CPP film hot sealing layer is 30 ~ 50 microns; the thickness of described aluminium foil layer is 25 ~ 50 microns; the thickness of described thermal contraction rete is 20 ~ 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080416.9U CN204558540U (en) | 2015-02-05 | 2015-02-05 | A kind of lithium battery aluminum-plastic film containing heat shrink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080416.9U CN204558540U (en) | 2015-02-05 | 2015-02-05 | A kind of lithium battery aluminum-plastic film containing heat shrink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558540U true CN204558540U (en) | 2015-08-12 |
Family
ID=53833620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520080416.9U Active CN204558540U (en) | 2015-02-05 | 2015-02-05 | A kind of lithium battery aluminum-plastic film containing heat shrink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393834A (en) * | 2015-07-30 | 2017-02-15 | 东莞奇妙包装有限公司 | Composite film |
-
2015
- 2015-02-05 CN CN201520080416.9U patent/CN204558540U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393834A (en) * | 2015-07-30 | 2017-02-15 | 东莞奇妙包装有限公司 | Composite film |
| CN106393834B (en) * | 2015-07-30 | 2021-06-29 | 东莞奇妙包装有限公司 | Composite membrane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204558551U (en) | A kind of lithium battery flexible packaging aluminum plastic film | |
| CN204558559U (en) | A kind of lithium battery aluminum-plastic film of high-ductility high sealing | |
| CN204558536U (en) | A kind of antiseepage high sealing lithium battery aluminum-plastic film | |
| CN103213364A (en) | Composite membrane for all-plastic lithium battery | |
| CN204558542U (en) | A kind of novel lithium battery aluminum plastic film | |
| CN204558556U (en) | A kind of lithium battery plastic-aluminum packaging film containing two foam films | |
| CN204558539U (en) | The large-scale lithium battery aluminum-plastic film of a kind of antiseepage high sealing | |
| CN204558540U (en) | A kind of lithium battery aluminum-plastic film containing heat shrink | |
| CN204558549U (en) | A kind of explosion-proof lithium battery aluminum plastic film | |
| CN204558555U (en) | A kind of lithium battery flexible packaging elasticity aluminum plastic film | |
| CN204558548U (en) | One has flexible lithium battery aluminum-plastic film | |
| CN204558558U (en) | A kind of lithium battery aluminum-plastic film containing two foam films | |
| CN204547253U (en) | A kind of novel high buffering lithium battery plastic-aluminum packaging film | |
| CN204558541U (en) | A kind of lithium battery aluminum-plastic film suppressing bubbling | |
| CN202805796U (en) | Environment-friendly paper-plastic compound film | |
| CN204558537U (en) | A kind of lithium battery aluminum-plastic film of high leakproofness | |
| CN204558552U (en) | A kind of impact-resistant novel lithium battery aluminum plastic film | |
| CN204558553U (en) | A kind of elasticity lithium battery aluminum-plastic film | |
| CN204558557U (en) | A kind of large-scale lithium battery plastic-aluminum packaging film including double-layer foamed film | |
| CN204558547U (en) | A kind of high explosion-proof lithium battery aluminum plastic film | |
| CN204558560U (en) | A kind of large-scale lithium battery plastic-aluminum packaging film including foam films | |
| CN204622735U (en) | A kind of fluid sealant composite package film of high-blocking corrosion-resisting | |
| CN204547233U (en) | A kind of lithium battery plastic-aluminum packaging film | |
| CN204558554U (en) | A kind of shock-resistant large-scale lithium battery aluminum-plastic film | |
| CN204558546U (en) | A kind of shock-resistant lithium battery aluminum-plastic film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20151111 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. |
|
| 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. |
|
| CP03 | Change of name, title or address |