CN219203174U - Heterojunction battery packaging component - Google Patents
Heterojunction battery packaging component Download PDFInfo
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- CN219203174U CN219203174U CN202320154950.4U CN202320154950U CN219203174U CN 219203174 U CN219203174 U CN 219203174U CN 202320154950 U CN202320154950 U CN 202320154950U CN 219203174 U CN219203174 U CN 219203174U
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 230000000903 blocking effect Effects 0.000 claims abstract description 53
- 239000003365 glass fiber Substances 0.000 claims abstract description 50
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 238000000576 coating method Methods 0.000 claims abstract description 34
- 239000002313 adhesive film Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 16
- 229910052731 fluorine Inorganic materials 0.000 claims description 16
- 239000011737 fluorine Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 238000013329 compounding Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 35
- 238000002834 transmittance Methods 0.000 description 8
- 239000003292 glue Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Images
Classifications
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to the technical field of photovoltaic module packaging, and particularly discloses a heterojunction battery packaging module which comprises a front plate, a first packaging adhesive film, a battery piece, a second packaging adhesive film and a back plate which are sequentially arranged from top to bottom. The first water blocking film layer of the water blocking layer of the front plate prevents water vapor from entering the battery piece; the second glass fiber reinforced layer plays a role in insulation and pressure resistance; the first fluorocarbon coating improves the adhesion of the front plate and the first packaging adhesive film. The heterojunction battery packaging assembly can meet higher waterproof requirements, improves the strength of the front plate, can be applied to waterproof requirements of distributed photovoltaic projects or personalized photovoltaic projects on the photovoltaic assembly, and meets application scenes of diversified heterojunction battery packaging assemblies.
Description
Technical Field
The utility model relates to the technical field of photovoltaic module packaging, in particular to a heterojunction battery packaging module.
Background
Currently, the main stream of the photovoltaic market is a PERC (Passivated Emitter and Rear Cell, solar cell with passivated emitter and rear contact) cell packaging component, and with the gradual maturity of the N-type cell technology, the efficiency advantage is more and more obvious, and the heterojunction (HeteroJunction with intrinsic Thinfilm, HJT) cell packaging component is also greatly developed.
To obtain good power generation efficiency, the packaging structure of the solar cell, especially the front plate, is required to have good light transmittance; in addition, the solar cell module is generally installed outdoors and is used for a long time outdoors, and thus the solar cell module is required to have good weather resistance, insulation, flame retardancy and flexibility at the same time. In particular, the front plate of the heterojunction cell assembly also has high water blocking performance because the heterojunction cell is relatively sensitive to moisture.
However, the front plate and the back plate of the existing heterojunction battery assembly usually adopt coated glass only, so that the overall water blocking performance is poor, and a good protective effect on the battery piece cannot be achieved.
Disclosure of Invention
The technical problem to be solved by the utility model is how to solve the waterproof requirement of the heterojunction battery packaging assembly and meet the problem of the application scene of the diversified heterojunction battery packaging assembly.
The utility model provides a heterojunction battery packaging assembly, which comprises a front plate, a first packaging adhesive film, a battery piece, a second packaging adhesive film and a back plate which are sequentially arranged from top to bottom, wherein the front plate is formed by compounding a multi-layer structure, the multi-layer structure at least comprises a water blocking layer positioned at the bottom layer, and the water blocking layer comprises a first water blocking film layer, a second glass fiber reinforced layer and a first fluorocarbon coating which are sequentially arranged from top to bottom.
Optionally, the material of the first water blocking film layer is silicon dioxide, the material of the second glass fiber reinforced layer is PET resin, and the material of the first fluorocarbon coating is FEVE type fluorocarbon resin.
Optionally, the front plate further includes a first glass fiber reinforced layer located at a side of the water blocking layer facing the first water blocking film layer; optionally, the thickness of the first glass fiber reinforced layer is 150 μm-180 μm.
Optionally, the thickness of the water-blocking layer is 180 μm-200 μm.
Optionally, the thickness of the first water blocking film layer is 10 μm-15 μm; the thickness of the second glass fiber reinforced layer is 150-175 mu m.
Optionally, the front plate further includes a fluorine-containing film located at a side of the first glass fiber reinforced layer away from the water blocking layer; optionally, the fluorine-containing film has a thickness of 10 μm to 20 μm.
Optionally, the back plate includes a second fluorocarbon coating, a third glass fiber reinforced layer, a second water blocking film layer and a third fluorocarbon coating, which are sequentially disposed towards the second packaging adhesive film.
Optionally, the second fluorocarbon coating has a thickness of 10 μm to 15 μm and the third fluorocarbon coating has a thickness of 10 μm to 15 μm.
Optionally, the thickness of the third glass fiber reinforced layer is 280 μm-300 μm.
Optionally, the front plate has a thickness of 350 μm to 410 μm and the back plate has a thickness of 210 μm to 345 μm.
The technical scheme of the utility model has the following beneficial effects:
the heterojunction battery packaging assembly comprises a front plate, a first packaging adhesive film, a battery piece, a second packaging adhesive film and a back plate which are sequentially arranged from top to bottom, wherein the front plate is formed by compounding a multi-layer structure, the front plate at least comprises a water blocking layer positioned at the bottom layer, and the water blocking layer comprises a first water blocking film layer, a second glass fiber reinforced layer and a first fluorocarbon coating which are sequentially arranged from top to bottom. The first water blocking film layer of the water blocking layer of the front plate prevents water vapor from entering the battery piece and is arranged on one side far away from the battery piece; the second glass fiber reinforced layer plays a role in insulation and pressure resistance and is arranged on one side close to the battery piece; the first fluorocarbon coating improves the cohesiveness of the front plate and the first packaging adhesive film, and avoids layering between the waterproof layer and the battery piece, so that water vapor can enter the battery piece from a gap between the waterproof layer and the battery piece to cause the battery piece to be damaged, and the service life of the heterojunction battery packaging assembly is short. The heterojunction battery packaging assembly can meet higher waterproof requirements, improves the strength of the front plate, can be applied to waterproof requirements of distributed photovoltaic projects or personalized photovoltaic projects on the photovoltaic assembly, and meets application scenes of diversified heterojunction battery packaging assemblies.
Further, the front plate further comprises a first glass fiber reinforced layer positioned on one side of the water blocking layer facing the first water blocking film layer; optionally, the thickness of the first glass fiber reinforced layer is 150 μm-180 μm. The front plate of the heterojunction battery packaging assembly adopts the first glass fiber reinforced layer to improve the strength of the heterojunction battery packaging assembly, so that the supporting effect is met, and the heterojunction battery packaging assembly is prevented from bending after being subjected to heat lamination; the first glass fiber reinforced layer with the thickness of 150-180 μm is adopted to replace the conventional transparent glass with the thickness of 2-3 mm to increase the rigidity of the heterojunction battery packaging assembly, lighten the weight of the heterojunction battery packaging assembly, embody the characteristic of softness, thinness and beauty of the heterojunction battery packaging assembly and meet the application scene of the diversified heterojunction battery packaging assembly.
Further, the front plate further comprises a fluorine-containing film positioned on one side of the first glass fiber reinforced layer, which is away from the water blocking layer; optionally, the fluorine-containing film has a thickness of 10 μm to 20 μm. Because the heterojunction battery packaging assembly is usually used outdoors and is easy to erode by rain, snow and the like, the performance of the battery piece in the heterojunction battery packaging assembly is attenuated too fast, and the fluorine-containing film of the front plate of the heterojunction battery packaging assembly can meet the weather resistance of the air surface of the front plate, so that the service life and the performance of the battery piece in the heterojunction battery packaging assembly are indirectly improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a heterojunction battery package assembly;
fig. 2 is a schematic structural view of a front plate of a heterojunction battery package assembly according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a back plate of a heterojunction battery package assembly according to an embodiment of the application.
Reference numerals:
1. a back plate; 2. a front plate; 3. a first packaging adhesive film; 4. a battery sheet; 5. a second packaging adhesive film; 6. a first water blocking film layer; 7. a second glass fiber reinforcement layer; 8. a first fluorocarbon coating; 9. a first glass fiber reinforcement layer; 10. a fluorine-containing film; 11. a second fluorocarbon coating; 12. a third glass fiber reinforced layer; 13. a second water blocking film layer; 14. a third fluorocarbon coating; 20. a water blocking layer; 21. a first glue layer; 22. and a second glue layer.
Detailed Description
The following description of the present utility model will be made clearly and fully, and it is apparent that the embodiments described are some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The embodiment of the utility model provides a heterojunction battery packaging assembly, which comprises a front plate 2, a first packaging adhesive film 3, a battery piece 4, a second packaging adhesive film 5 and a back plate 1 which are sequentially arranged from top to bottom, wherein the front plate 2 is formed by compounding a multi-layer structure, the front plate 2 at least comprises a water blocking layer 20 positioned at the bottom layer, and the water blocking layer 20 comprises a first water blocking film layer 6, a second glass fiber reinforced layer 7 and a first fluorocarbon coating 8 which are sequentially arranged from top to bottom. The front plate 2 has higher requirement on light transmittance, and the multilayer structures compounded into the front plate 2 all adopt layered structures with good light transmittance, so that the influence of the multilayer structures on the light transmittance of the front plate 2 is reduced; the first water blocking film layer 6 of the water blocking layer 20 of the front plate 2 prevents water vapor from entering the battery piece 4 and is arranged at one side far away from the battery piece 4; the second glass fiber reinforced layer 7 plays a role in insulation and pressure resistance and is arranged on one side close to the battery piece 4; the first fluorocarbon coating 8 improves the cohesiveness of the front plate 2 and the first packaging adhesive film 3, and avoids layering between the water-resistant layer 20 and the battery piece 4, so that water vapor can enter the battery piece 4 from a gap between the water-resistant layer 20 and the battery piece 4 to cause damage to the battery piece 4, and the service life of the heterojunction battery packaging assembly is short. The heterojunction battery packaging assembly can meet higher waterproof requirements, improves the strength of the front plate 2, can be applied to waterproof requirements of distributed photovoltaic projects or personalized photovoltaic projects on the photovoltaic assembly, and meets application scenes of diversified heterojunction battery packaging assemblies.
In one embodiment, the thickness of the water-blocking layer 20 is 180 μm to 200 μm. For example 180 μm, 185 μm, 190 μm, 195 μm or 200 μm. The water-resistant layer 20 is required to meet the excellent water vapor barrier effect and also meet the good bonding effect with the packaging adhesive film. The thicker the thickness of the water blocking layer 20, the better the water blocking effect, and the thickness of the water blocking layer 20 of 180 μm to 200 μm is the most preferable in consideration of the cost and the water blocking effect.
In one embodiment, the thickness of the first water blocking film layer 6 is 10 μm-15 μm. For example, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm. The function of the first water-blocking film layer 6 is mainly to isolate water vapor from entering the battery piece 4 from the front plate 2, if the thickness of the first water-blocking film layer 6 is smaller than 10 μm, the water-blocking property of the front plate 2 is weakened, and the service life of the battery piece 4 is reduced and the performance is weakened quickly; if the thickness of the first water blocking film layer 6 is greater than 15 μm, the process time for forming the first water blocking film layer 6 is increased, indirectly resulting in an increase in the cost of the heterojunction battery packaging assembly. The thickness of the second glass fiber reinforced layer 7 is 150-175 μm. For example 150 μm, 155 μm, 160 μm, 165 μm, 170 μm or 175 μm. The second glass fiber reinforced layer 7 plays a role in insulation and pressure resistance, if the thickness of the second glass fiber reinforced layer 7 is smaller than 150 mu m, the rigidity of the water-resistant layer 20 is reduced, the rigidity of the front plate 2 is reduced, and the battery piece 4 is easily damaged; if the thickness of the second glass fiber reinforced layer 7 is greater than 175 μm, the weight of the heterojunction battery packaging assembly is increased, and the application scenario of the diversified heterojunction battery packaging assembly is reduced.
In an embodiment, the material of the first water blocking film layer 6 is silicon dioxide. The silicon dioxide is not dissolved in water and can not react with water, the silicon dioxide is used as the material of the first water-blocking film layer 6, the cost is low, the silicon dioxide is easy to obtain, the process technology is mature, the silicon dioxide can be formed through a magnetron sputtering process, the silicon dioxide can also be formed through a chemical vapor deposition process, and the silicon dioxide is suitable for industrial large-scale application.
In an embodiment, the material of the second glass fiber reinforced layer is PET resin. The PET resin is short for polyethylene terephthalate resin, has the characteristics of high light transmittance, stable chemical property, high mechanical strength, strong anti-seismic and anti-pressure capability and the like, and meanwhile, the process for obtaining the PET resin is mature, the market supply is sufficient, the PET resin is used as the material of the second glass fiber reinforced layer, and the cost is controllable.
In one embodiment, the material of the first fluorocarbon coating is a FEVE fluorocarbon resin. FEVE type fluorocarbon resins are thermosetting coating resins copolymerized from fluoroolefins and alkyl vinyl ethers or alkyl vinyl esters, the fluoroolefin units providing weatherability and corrosion resistance and the vinyl units providing solubility, clarity, gloss, hardness and flexibility. The FEVE type fluorocarbon resin has excellent light transmittance, and can reduce the influence of the first fluorocarbon coating on the light transmittance of the front plate.
In an embodiment, the front plate 2 further includes a first glass fiber reinforced layer 9 located on a side of the water blocking layer 20 facing the first water blocking film layer, and the thickness of the first glass fiber reinforced layer 9 is 150 μm to 180 μm. For example 150 μm, 155 μm, 160 μm, 170 μm, 175 μm or 180 μm. If the thickness of the first glass fiber reinforced layer 9 is smaller than 150 μm, the rigidity of the heterojunction battery packaging assembly is reduced, and the battery piece 4 is easy to damage; if the thickness of the first glass fiber reinforced layer 9 is greater than 180 μm, the weight of the heterojunction battery packaging assembly is increased, and the application scenario of the diversified heterojunction battery packaging assembly is reduced. If the front plate 2 of the heterojunction battery packaging assembly adopts the first glass fiber reinforced layer 9 to improve the strength of the heterojunction battery packaging assembly, the supporting effect is met, and the heterojunction battery packaging assembly is prevented from bending after being subjected to heat lamination; the first glass fiber reinforced layer 9 with the thickness of 150-180 μm is adopted to replace the conventional transparent glass with the thickness of 2-3.2 mm to increase the rigidity of the heterojunction battery packaging assembly, lighten the weight of the heterojunction battery packaging assembly, embody the characteristic of softness, thinness and beauty of the heterojunction battery packaging assembly and meet the application scene of the diversified heterojunction battery packaging assembly.
In one embodiment, the front plate 2 further includes a fluorine-containing film 10 disposed on a side of the first glass fiber reinforced layer 9 facing away from the water blocking layer 20, and the thickness of the fluorine-containing film 10 is 10 μm to 20 μm. For example, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm or 20 μm. The thicker the fluorine-containing film 10, the better the weather resistance of the front plate 2, and if the fluorine-containing film 10 is less than 10 μm, the weather resistance of the front plate 2 is reduced, and the life of the battery piece 4 is reduced and the performance is reduced rapidly; if the thickness of the fluorine-containing thin film 10 is more than 20 μm, the cost of the heterojunction battery packaging assembly increases. Since the heterojunction battery packaging assembly is usually used outdoors and is easy to be corroded by rain, snow and the like, the performance of the battery piece 4 in the heterojunction battery packaging assembly is attenuated too fast, the fluorine-containing film 10 of the front plate 2 of the heterojunction battery packaging assembly can meet the weather resistance of the air surface of the front plate 2, and the service life and the performance of the battery piece 4 in the heterojunction battery packaging assembly are indirectly improved.
In this embodiment, as shown in fig. 2, the front panel 2 further includes a first glue layer 21 between the water blocking layer 20 and the first glass fiber reinforced layer 9, and a second glue layer 22 between the first glass fiber reinforced layer 9 and the fluorine-containing film 10. The front plate 2 formed by bonding and compounding the water-resistant layer 20, the first glass fiber reinforced layer 9 and the fluorine-containing film 10 through the first glue layer 21 and the second glue layer 22 has the advantages of good light transmittance, light weight, high impact strength, high fireproof level, good weather resistance, ultraviolet resistance, water vapor resistance and the like.
In this embodiment, as shown in fig. 3, the back plate 1 plays a key role in water blocking performance of the component package, and the back plate 1 includes a second fluorocarbon coating 11, a third glass fiber reinforced layer 12, a second water blocking film layer 13, and a third fluorocarbon coating 14 sequentially disposed toward the second packaging adhesive film. The second fluorocarbon coating 11 improves the cohesiveness of the back plate 1 and the second packaging adhesive film 5, and avoids layering between the back plate 1 and the battery piece 4, so that water vapor can enter the battery piece 4 from a gap between the back plate 1 and the battery piece 4 to damage the battery piece 4, and the service life of the heterojunction battery packaging assembly is short; the third fluorocarbon coating 14 is used for improving the weather resistance of the air surface of the back plate 1; the second water blocking film layer 13 mainly has the function of isolating water vapor from entering the battery piece 4 from the back plate 1 and affecting the service life and performance of the battery piece 4; the third glass fiber reinforced layer 12 improves the strength of the back plate 1, provides support for the heterojunction battery packaging assembly, and avoids bending of the heterojunction battery packaging assembly after heat lamination.
In one embodiment, the second fluorocarbon coating 11 has a thickness of 10 μm to 15 μm, for example, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm; the thicker the second fluorocarbon coating 11 is, the better the adhesion of the back plate 1 and the second encapsulation adhesive film 5 is, and the thickness of the second fluorocarbon coating 11 is optimally selected from 10 μm to 15 μm in consideration of the cost and the adhesion effect. The third fluorocarbon coating 14 has a thickness of 10 μm to 15 μm, for example, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm. The thicker the third fluorocarbon coating 14 is, the better the weather resistance of the back sheet 1 is, and if the thickness of the third fluorocarbon coating 14 is less than 10 μm, the weather resistance of the back sheet 1 is weakened, the life of the battery piece 4 is reduced and the performance is weakened quickly; if the thickness of the third fluorocarbon coating 14 is greater than 15 μm, the cost of the heterojunction battery packaging assembly increases.
In one embodiment, the thickness of the third glass fiber reinforced layer 12 is 280 μm to 300 μm. For example 280 μm, 285 μm, 290 μm, 295 μm or 300 μm. If the thickness of the third glass fiber reinforced layer 12 is less than 280 μm, the rigidity of the back plate 1 is reduced, which is easy to cause the damage of the battery piece 4; if the thickness of the second glass fiber reinforced layer 7 is greater than 300 μm, the weight of the heterojunction battery packaging assembly is increased, and the application scenario of the diversified heterojunction battery packaging assembly is reduced.
In one embodiment, the front plate 2 has a thickness of 350 μm to 410 μm, for example, 350 μm, 360 μm, 370 μm, 380 μm, 390 μm, 400 μm or 410 μm; the thickness of the back plate 1 is 210 μm-345 μm, for example 210 μm, 230 μm, 250 μm, 270 μm, 290 μm, 310 μm, 330 μm or 345 μm. Specifically, the thickness of the battery piece 4 is 110-150 mu m, and the flexibility is good; the whole thickness of the heterojunction battery packaging component is smaller than 1mm, the whole weight is reduced, and the applicability of the heterojunction battery packaging component on various products is improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (12)
1. The heterojunction battery packaging assembly comprises a front plate, a first packaging adhesive film, a battery piece, a second packaging adhesive film and a back plate which are sequentially arranged from top to bottom, and is characterized in that the front plate is formed by compounding a multi-layer structure, the multi-layer structure at least comprises a water blocking layer positioned at the bottom layer, and the water blocking layer comprises a first water blocking film layer, a second glass fiber reinforced layer and a first fluorocarbon coating which are sequentially arranged from top to bottom.
2. The heterojunction cell package assembly of claim 1, wherein the material of the first water blocking film layer is silicon dioxide, the material of the second glass fiber reinforced layer is PET resin, and the material of the first fluorocarbon coating is FEVE type fluorocarbon resin.
3. The heterojunction cell package assembly of claim 1, wherein the front plate further comprises a first glass fiber reinforced layer located on a side of the water blocking layer facing the first water blocking film layer.
4. The heterojunction cell package assembly according to claim 3, wherein,
the thickness of the first glass fiber reinforced layer is 150-180 mu m.
5. The heterojunction cell package assembly of claim 1, wherein the thickness of the water-blocking layer is 180 μm-200 μm.
6. The heterojunction cell package assembly of claim 1, wherein the thickness of the first water blocking film layer is 10 μιη -15 μιη; the thickness of the second glass fiber reinforced layer is 150-175 mu m.
7. The heterojunction cell package assembly of claim 3, wherein the front plate further comprises a fluorine-containing film on a side of the first glass fiber reinforced layer facing away from the water blocking layer.
8. The heterojunction cell package assembly according to claim 7, wherein,
the thickness of the fluorine-containing film is 10 mu m to 20 mu m.
9. The heterojunction cell package assembly of any one of claims 1-8, wherein the back plate comprises a second fluorocarbon coating, a third glass fiber reinforcement layer, a second water blocking film layer and a third fluorocarbon coating disposed in sequence towards the second packaging adhesive film.
10. The heterojunction cell package assembly of claim 9, wherein the thickness of the second fluorocarbon coating is 10-15 μm and the thickness of the third fluorocarbon coating is 10-15 μm.
11. The heterojunction cell package assembly of claim 9, wherein the thickness of the third glass fiber reinforced layer is 280 μm-300 μm.
12. The heterojunction cell package assembly of claim 9, wherein the thickness of the front plate is 350 μm-410 μm and the thickness of the back plate is 210 μm-345 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154950.4U CN219203174U (en) | 2023-01-16 | 2023-01-16 | Heterojunction battery packaging component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154950.4U CN219203174U (en) | 2023-01-16 | 2023-01-16 | Heterojunction battery packaging component |
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| CN219203174U true CN219203174U (en) | 2023-06-16 |
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| CN202320154950.4U Active CN219203174U (en) | 2023-01-16 | 2023-01-16 | Heterojunction battery packaging component |
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Address after: No. 99 Qingliu Road, Xuancheng Economic and Technological Development Zone, Xuancheng City, Anhui Province Patentee after: Anhui Huasheng New Energy Technology Co.,Ltd. Country or region after: China Address before: Science and Technology Park, Xuancheng Economic and Technological Development Zone, Xuancheng City, Anhui Province Patentee before: Anhui Huasheng New Energy Technology Co.,Ltd. Country or region before: China |