CN202282356U - High-barrier solar battery back film - Google Patents
High-barrier solar battery back film Download PDFInfo
- Publication number
- CN202282356U CN202282356U CN2011204517964U CN201120451796U CN202282356U CN 202282356 U CN202282356 U CN 202282356U CN 2011204517964 U CN2011204517964 U CN 2011204517964U CN 201120451796 U CN201120451796 U CN 201120451796U CN 202282356 U CN202282356 U CN 202282356U
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- Prior art keywords
- layer
- solar battery
- battery back
- adhesive layer
- barrier
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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
A high-barrier solar battery back film comprises a weather-proof layer, a first bonding layer, an electric insulation layer, a second bonding layer and a bonding layer, wherein, a barrier layer is arranged between the weather-proof layer and the first bonding layer and comprises a base material, a third bonding layer on one surface of the base material, and a metal oxidization layer on the other surface of the base material; the metal oxidization layer and the electric insulation layer are bonded together through the first bonding layer; and the base material and the weather-proof layer are bonded through the third bonding layer. According to the utility model, the high-barrier solar battery back film is not layered within the life span, so the high-barrier performance is ensured, and the service life of battery components is prolonged.
Description
Technical field
The utility model belongs to new energy field, particularly a kind of notacoria of solar cell.
Background technology
As the green replacement scheme of traditional production method of electric energy, photovoltaic cell component is used to utilize sunlight to produce electric energy.Photovoltaic module is a laminated construction, mainly comprises surface layer of glass, EVA sealant, solar battery sheet, EVA sealant and solar battery back film.Because it is outdoor that solar photovoltaic assembly is installed in usually, therefore require it to have desirable weatherability undoubtedly.Therefore require that solar energy back film has good weatherability, resistance to ag(e)ing, insulating properties, contamination resistance is strong, the steam transmitance is little, the partial discharge ability is greater than more than the 1000V and can reach useful life more than 25 years or the like.
Traditional solar battery back film generally comprises weathering layer, adhesive layer, electric insulation layer, adhesive layer, tack coat.The notacoria of this structure often produces destruction because of the barrier property difference causes water, oxygen, corrosivity vapour-liquid body to see through notacoria to the EVA glued membrane, even causes EVA glued membrane and battery sheet to come unstuck, and has shortened the life-span of assembly greatly.
The utility model content
The utility model technical problem to be solved provides a kind of high-barrier solar battery back film, and this notacoria can keep caking property and stability for a long time.
For addressing the above problem, the technical scheme that the present invention adopts is:
A kind of high-barrier solar battery back film; Comprise the layer of anti-marquis, first adhesive layer, electric insulation layer, second adhesive layer and tack coat; Between the layer of anti-marquis and first adhesive layer, be provided with barrier layer; Said barrier layer is made up of base material, the 3rd adhesive layer that is positioned at one surface and another surperficial metal oxide layer, and metal oxide layer and electric insulation layer are bonding through first adhesive layer, and base material and the layer of anti-marquis are bonding through the 3rd adhesive layer.
Said metal oxide layer is alumina layer or silicon oxide layer through sputter or vapor deposition.
The thickness of said metal oxide layer is 0.3-1.0 μ m..
Said first adhesive layer, second adhesive layer and the 3rd adhesive layer are polyurethane binder layer or acryloid cement layer.
Said electric insulation layer is PET.
Said weathering layer is polyvinyl fluoride layer, polyvinylidene fluoride layer or ethylene-tetrafluoroethylene copolymer layer.
Said tack coat is polyethylene layer or ethylene-vinyl acetate copolymer layer.
Compared with prior art; The utility model is bonding through metal oxide layer and electric insulation layer that barrier layer, barrier layer are set; Can guarantee that solar battery back film is not stratified in its time limit in useful life; Thereby guaranteed the high obstructing performance of notacoria, prolonged the useful life of battery component.
Description of drawings
Fig. 1 is a high-barrier solar battery back film structural representation;
Fig. 2 is the structural representation of barrier layer.
Each label list is shown among the figure: 1-weathering layer, 2-first adhesive layer, 3-electric insulation layer, 4-second adhesive layer, 5-tack coat, 6-barrier layer, 7-base material, 8-the 3rd adhesive layer, 9-metal oxide layer.
Embodiment
The said barrier layer of the utility model by base material, be positioned at its surperficial adhesive layer and forming through sputter or evaporation metal oxide skin(coating) at a side surface, metal oxide layer can blocking oxygen and water vapour; Said metal oxide layer can be alumina layer, silicon dioxide layer, stannic oxide layer or magnesium oxide layer etc., preferred alumina layer or silicon dioxide layer, and its thickness is 0.3-1.0 μ m; Said base material can be PTT film or pet film, preferred pet film; Said adhesive layer can be polyurethane binder layer or acryloid cement layer;
Said electric insulation layer is the PTT film, gathers 2,6-(ethylene naphthalate) film, polyamide film or PETG (PET) film, preferred PETG (PET) film.
Said weathering layer is a fluoro-containing copolymer film, and is a kind of in preferred polyvinyl fluoride (PVF), Kynoar (PVDF) and the ethylene-tetrafluoroethylene copolymer (ETFE), most preferably Kynoar (PVDF).
Tack coat according to the invention is meant polyethylene layer or ethylene-vinyl acetate copolymer layer.
High-barrier solar cell backboard according to the invention can be realized through being coated with compound mode:
One side at electric barrier layer is coated with first adhesive layer, closes on the compound barrier layer of mode of electric insulation layer according to the metal oxide layer of barrier layer; The layer of anti-marquis is compounded on the 3rd adhesive layer of barrier layer; Another side at electric insulation layer is coated with second adhesive layer, composite tie layer.Wherein, the combined temp of product is at 50～80 ℃, and combined temp is less than 50 ℃, and interlaminar bonding power can reduce, and adhesive layer can not bear and is higher than 80 ℃ combined temp, is 50-80 ℃ so select combined temp, can reach optimum composite effect.
Below in conjunction with specific embodiment the utility model is further described, but is not limited to this.
Embodiment 1:
In the present embodiment: the 1 μ m alumina layer, the another side that pass through the sputtering technology sputter in the one side of PET film are coated with polyurethane binder layer, form barrier layer; Weathering layer is the PVDF film of 25 μ m; Electric insulation layer is the PET film of 188 μ m, and tack coat is the polyethylene film of 50 μ m, and first, second adhesive layer is polyurethane binder layer, compound tense, and alumina layer on the barrier layer and electric insulation layer are bonding through first adhesive layer.
Manufacture method is following: the one side at electric insulation layer is coated with first tack coat through the intaglio plate coating process, the alumina layer of the compound barrier layer in dry back, compound speed of a motor vehicle 10m/min; 55 ℃ of combined temps, the another side at Obstruct membrane after the rolling is coated with the 3rd adhesive layer through the intaglio plate coating process, the compound weathering layer in dry back; Compound speed of a motor vehicle 20m/min, 80 ℃ of combined temps, the opposite side at electric insulation layer after the rolling is coated with second adhesive layer through the intaglio plate coating process; Dry back composite tie layer 7; Compound speed of a motor vehicle 25m/min, 60 ℃ of combined temps get the high-barrier solar battery back film after the rolling.
Embodiment 2:
In the present embodiment: the 0.5 μ m silicon oxide layer, the another side that pass through the sputtering technology sputter in the one side of PET film are coated with polyurethane binder layer, form barrier layer; Weathering layer is the etfe film of 25 μ m; Electric insulation layer is the PET film of 250 μ m; Tack coat is the polyethylene film of 50 μ m; First adhesive layer is that acryloid cement layer, second adhesive layer are polyurethane binder layer, compound tense, and alumina layer on the barrier layer and electric insulation layer are bonding through first adhesive layer.
Manufacture method is with embodiment 1.
Embodiment 3:
In the present embodiment: the 0.3 μ m silicon oxide layer, the another side that pass through the evaporation process vapor deposition in the one side of PET film are coated with polyurethane binder layer, form barrier layer; Weathering layer is the PVDF film of 50 μ m; Electric insulation layer is the PET film of 250 μ m; Tack coat is the ethylene-vinyl acetate copolymer film of 50 μ m; First, second adhesive layer is polyurethane binder layer, compound tense, and alumina layer on the barrier layer and electric insulation layer are bonding through first adhesive layer.
Manufacture method is with embodiment 1.
Comparative Examples:
With embodiment 1, but compound tense, and a side of alumina layer on the barrier layer and weathering layer is bonding through polyurethane binder.
Manufacture method is with embodiment 1.
Table 1: the performance data table of each embodiment
In the table:
1. the method for testing of steam transmitance:
ASTM F-1249 utilizes the standard test method of penetrance of steam permeable plastic film and the thin plate of modulated infrared transducer.
2. the method for testing of interlaminar bonding power
GB/T 8808 soft composite plastics material disbonded test methods.
Claims (7)
1. high-barrier solar battery back film; It comprises the layer of anti-marquis (1), first adhesive layer (2), electric insulation layer (3), second adhesive layer (4) and tack coat (5); It is characterized in that; Between layer of anti-marquis (1) and first adhesive layer (2), be provided with barrier layer (6); Said barrier layer (6) is made up of base material (7), the 3rd adhesive layer (8) that is positioned at one surface and another surperficial metal oxide layer (9), and metal oxide layer (9) is bonding through first adhesive layer (2) with electric insulation layer (3), and base material (7) is bonding through the 3rd adhesive layer (8) with the layer of anti-marquis (1).
2. according to the said solar battery back film of claim 1, it is characterized in that said metal oxide layer (9) is alumina layer or silicon oxide layer through sputter or vapor deposition.
3. according to claim 1 or 2 said solar battery back films, it is characterized in that the thickness of said metal oxide layer (9) is 0.3-1.0 μ m.
4. according to the said solar battery back film of claim 3, it is characterized in that said first adhesive layer (2), second adhesive layer (4) and the 3rd adhesive layer (8) are polyurethane binder layer or acryloid cement layer.
5. according to the said solar battery back film of claim 4, it is characterized in that said electric insulation layer (3) is PET.
6. according to the said solar battery back film of claim 5, it is characterized in that said weathering layer (1) is polyvinyl fluoride layer, polyvinylidene fluoride layer or ethylene-tetrafluoroethylene copolymer layer.
7. according to the said solar battery back film of claim 6, it is characterized in that said tack coat (5) is polyethylene layer or ethylene-vinyl acetate copolymer layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204517964U CN202282356U (en) | 2011-11-15 | 2011-11-15 | High-barrier solar battery back film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204517964U CN202282356U (en) | 2011-11-15 | 2011-11-15 | High-barrier solar battery back film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282356U true CN202282356U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204517964U Expired - Lifetime CN202282356U (en) | 2011-11-15 | 2011-11-15 | High-barrier solar battery back film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282356U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779880A (en) * | 2012-08-13 | 2012-11-14 | 乐凯胶片股份有限公司 | Polyester tandem solar battery back film |
| CN104103705A (en) * | 2013-04-02 | 2014-10-15 | 昆山雅森电子材料科技有限公司 | Heat-radiating type solar energy backboard |
| CN104497954A (en) * | 2014-12-13 | 2015-04-08 | 乐凯胶片股份有限公司 | Adhesive composition and solar cell backsheet |
| CN105514201A (en) * | 2016-01-21 | 2016-04-20 | 中天光伏材料有限公司 | Conductive back plate for high wetproof and heatproof photovoltaic module and manufacturing method thereof |
| CN108198886A (en) * | 2018-01-19 | 2018-06-22 | 中天科技精密材料有限公司 | A kind of corrosion resistant PVDF thin film of high reflectance and preparation method thereof, application |
| JP2019140273A (en) * | 2018-02-13 | 2019-08-22 | 大日本印刷株式会社 | Solar cell module |
-
2011
- 2011-11-15 CN CN2011204517964U patent/CN202282356U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779880A (en) * | 2012-08-13 | 2012-11-14 | 乐凯胶片股份有限公司 | Polyester tandem solar battery back film |
| CN104103705A (en) * | 2013-04-02 | 2014-10-15 | 昆山雅森电子材料科技有限公司 | Heat-radiating type solar energy backboard |
| CN104497954A (en) * | 2014-12-13 | 2015-04-08 | 乐凯胶片股份有限公司 | Adhesive composition and solar cell backsheet |
| CN105514201A (en) * | 2016-01-21 | 2016-04-20 | 中天光伏材料有限公司 | Conductive back plate for high wetproof and heatproof photovoltaic module and manufacturing method thereof |
| CN108198886A (en) * | 2018-01-19 | 2018-06-22 | 中天科技精密材料有限公司 | A kind of corrosion resistant PVDF thin film of high reflectance and preparation method thereof, application |
| JP2019140273A (en) * | 2018-02-13 | 2019-08-22 | 大日本印刷株式会社 | Solar cell module |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
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| CX01 | Expiry of patent term |