CN219586034U - Integrated film for packaging 0BB novel battery - Google Patents
Integrated film for packaging 0BB novel battery Download PDFInfo
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- CN219586034U CN219586034U CN202320395202.5U CN202320395202U CN219586034U CN 219586034 U CN219586034 U CN 219586034U CN 202320395202 U CN202320395202 U CN 202320395202U CN 219586034 U CN219586034 U CN 219586034U
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- packaging
- outer bearing
- adhesive film
- layer
- bearing layer
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the field of packaging adhesive films, in particular to an integrated film for packaging a novel 0BB battery, which comprises the following components: an outer bearing layer and an inner adhesive film layer; the outer bearing layer is an unsaturated polymer subjected to irradiation treatment; and the thickness ratio of the outer bearing layer to the inner adhesive film layer is 10-20:80-90; according to the integrated film for packaging the 0BB novel battery, the outer bearing layer and the inner adhesive film layer are selected for integrated film forming, wherein the outer bearing layer is made of the unsaturated polymer, the fluidity of the outer bearing layer can be effectively reduced through irradiation, the molding coating effect of the welding belt is guaranteed, meanwhile, the unsaturated polymer has no ester bond structure, no acid group is generated through hydrolysis, the welding belt is prevented from being contacted with a conventional adhesive film, the corrosion of free acid to a battery piece is avoided, and the reliability and weather resistance of the 0BB novel battery are effectively improved.
Description
Technical Field
The utility model relates to the technical field of packaging adhesive films, in particular to an integrated film for packaging a novel 0BB battery.
Background
The bottleneck of the development of the novel battery is that besides the technology, the cost is reduced, and the 0BB main grid-free technology can effectively reduce the use of silver paste. The requirement for the adhesive film requires that the adhesive film has good molding and wrapping capabilities for the round welding belt and has good binding force for the welding belt and the battery.
The current irradiation scheme has the advantage of simple process, and adopts any one or a mixture of at least two of ethylene-acrylic ester copolymers such as ethylene-vinyl acetate copolymer EVA, ethylene-alpha-olefin copolymer (POE), ethylene-acrylic acid copolymer EAA, ethylene-ethyl acrylate copolymer EEA, ethylene-methyl methacrylate copolymer EMMA, ethyl-methyl acrylate copolymer EMA, ethylene-butyl acrylate copolymer EBA (product name Elvaloy), polyvinyl butyral (PVB, large shrinkage, high processing temperature and high hygroscopicity) and ionic polymer (Surlyn ethylene-acrylic acid copolymer+metal ion).
However, the ester bonds of the ethylene-acrylic acid ester binary/ternary copolymer are hydrolyzed in the wet heat aging process, free acid is generated by the hydrolysis of ethylene-vinyl acetate, the ester bonds of other ethylene-acrylic acid ester copolymers are hydrolyzed, the main chain generates acid groups, the structures are similar to those of ethylene acrylic acid copolymers, and the free acid or the main chain acid groups are opposite to each other and can corrode welding strips; organic and inorganic anti-corrosion auxiliary agents, and the adhesive film can yellow or reduce transparency; the ethylene-alpha-olefin copolymer (POE) has poor irradiation sensitivity, the irradiation dosage is increased, the modulus of the adhesive film is increased, and the hidden crack of the battery piece with increased hardness is aggravated; the more critical problem is that the coating effect of the adhesive film for the novel 0BB battery on the welding belt is poor, and the operation of the photovoltaic module is easily affected by the virtual problem.
Disclosure of Invention
The utility model aims to provide an integrated film for packaging a novel 0BB battery, which aims to solve the technical problem that the adhesive film for the novel 0BB battery is easy to generate solder strip virtual connection.
In order to solve the above technical problems, the present utility model provides an integrated film for packaging a novel 0BB battery, comprising: an outer bearing layer and an inner adhesive film layer; the outer bearing layer is an unsaturated polymer subjected to irradiation treatment; and the thickness ratio of the outer bearing layer to the inner adhesive film layer is 10-20:80-90.
In one embodiment, the thickness of the integral film for packaging the 0BB novel battery is 80-120 mu m.
In one embodiment, the unsaturated polymer has a Mooney viscosity ML 1+4 125 deg.c of 5-80 deg.c.
In one embodiment, the unsaturated polymer has an unsaturation of 2.0 to 30.0.+ -. 0.2 iodine per 100g of gum.
In one embodiment, the unsaturated polymer has a gram weight of 60 to 150g/cm 3 。
In one embodiment, the unsaturated polymer comprises one or more of cis Ding Shengjiao, butyl, isoprene, and ethylene propylene.
In one embodiment, the inner adhesive film layer is an EVA adhesive film.
The integrated film for packaging the novel 0BB battery has the beneficial effects that the integrated film is formed by integrating the outer bearing layer and the inner adhesive film layer, wherein the outer bearing layer is made of the unsaturated polymer, the fluidity of the outer bearing layer can be effectively reduced through irradiation, the molding coating effect of the welding belt is ensured, meanwhile, the contact between the welding belt and a conventional adhesive film is blocked, the corrosion of free acid to a battery piece is avoided, and the reliability and weather resistance of the novel 0BB battery are effectively improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of an integrated film for packaging a 0BB novel battery of the present utility model.
In the figure:
an outer bearing layer 1 and an inner adhesive film layer 2.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
As shown in fig. 1, this embodiment provides an integral film for packaging a novel battery of 0BB, comprising: an outer bearing layer and an inner adhesive film layer; the outer bearing layer is an unsaturated polymer subjected to irradiation treatment; and the thickness ratio of the outer bearing layer to the inner adhesive film layer is 10-20:80-90.
Specifically, the outer bearing layer is provided by unsaturated polymers through irradiation, the main chain or the side chain of the unsaturated polymers has unsaturated double bonds, the fluidity can be reduced after irradiation, and the welding belt has good shaping and coating capabilities; on the other hand, the influence of free acid of the lower conventional adhesive film on the corrosion of the battery piece can be prevented.
In this embodiment, specifically, the thickness of the integrated film for packaging the 0BB novel battery is 80-120 μm.
In this example, in particular, the Mooney viscosity ML of the unsaturated polymer 1+4 125 deg.c of 5-80 deg.c.
In this example, the unsaturation of the unsaturated polymer is, in particular, 2.0 to 30.0.+ -. 0.2 iodine per 100g of gum.
In this embodiment, the unsaturated polymer has a gram weight of 60 to 150g/cm 3 。
In this embodiment, the unsaturated polymer is specifically selected from materials satisfying extrusion casting process, such as cis Ding Shengjiao (BR 9000 oat petrifaction), butyl rubber (1675N, oat petrifaction 1751), isoprene rubber (IR 2200 japanese rayleigh, IR80 soliton), ethylene propylene rubber EPDM (medium petrifaction trimmings: 2032pm,3092pm,3112pm, etc., nordell 3720P,3745P,3760P, and 4770P).
Specifically, the resin structure of the unsaturated polymer is sensitive to irradiation because of not containing acid groups, and the fluidity can be quickly reduced by irradiation treatment; and simultaneously, the corrosion influence of the self on the welding belt is avoided.
In this embodiment, specifically, the inner adhesive film layer is an EVA adhesive film, which has advantages in price and fast crosslinking rate, and the EVA adhesive film can meet the reliability of the assembly.
In summary, this embodiment provides an integral film for packaging a novel battery of 0BB, which includes: through selecting outer carrier layer and interior glued membrane layer integral film, wherein outer carrier layer selects unsaturated polymer to use can effectively reduce the mobility of outer carrier layer through the irradiation, has guaranteed the moulding cladding effect of butt welding area, has also blockked the contact of butt welding area and conventional glued membrane simultaneously and has avoided the corruption of free acid to the battery piece, has effectively promoted the reliability and the weatherability of 0BB novel battery.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. An integral membrane for packaging a 0BB novel battery, comprising:
an outer bearing layer and an inner adhesive film layer;
the outer bearing layer is an unsaturated polymer subjected to irradiation treatment; and
the thickness ratio of the outer bearing layer to the inner adhesive film layer is 10-20:80-90.
2. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
the thickness of the integrated film for packaging the 0BB novel battery is 80-120 mu m.
3. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
mooney viscosity ML of the unsaturated polymer 1+4 125 deg.c of 5-80 deg.c.
4. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
the unsaturation degree of the unsaturated polymer is 2.0-30.0+/-0.2 iodine/100 g of rubber.
5. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
the gram weight of the unsaturated polymer is 60-150g/cm 3 。
6. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
the unsaturated polymer comprises one of cis Ding Shengjiao, butyl rubber, isoprene rubber and ethylene propylene rubber.
7. The integrated film for packaging a 0BB novel battery as claimed in claim 1, wherein,
the inner adhesive film layer is an EVA adhesive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395202.5U CN219586034U (en) | 2023-03-03 | 2023-03-03 | Integrated film for packaging 0BB novel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320395202.5U CN219586034U (en) | 2023-03-03 | 2023-03-03 | Integrated film for packaging 0BB novel battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219586034U true CN219586034U (en) | 2023-08-25 |
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ID=87686307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320395202.5U Active CN219586034U (en) | 2023-03-03 | 2023-03-03 | Integrated film for packaging 0BB novel battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219586034U (en) |
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2023
- 2023-03-03 CN CN202320395202.5U patent/CN219586034U/en active Active
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