CN204303838U - Solar cell backboard - Google Patents

Solar cell backboard Download PDF

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Publication number
CN204303838U
CN204303838U CN201420858717.5U CN201420858717U CN204303838U CN 204303838 U CN204303838 U CN 204303838U CN 201420858717 U CN201420858717 U CN 201420858717U CN 204303838 U CN204303838 U CN 204303838U
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CN
China
Prior art keywords
rete
solar cell
film layer
pet film
pvf
Prior art date
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Active
Application number
CN201420858717.5U
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Chinese (zh)
Inventor
闫洪嘉
李萍
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Crown Advanced Material Co Ltd
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Crown Advanced Material Co Ltd
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Priority to CN201420858717.5U priority Critical patent/CN204303838U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

A kind of solar cell backboard, comprise the PVF rete, PET film layer, tack coat and the synergy rete for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, described PVF rete is coated on PET film layer, and the two sides of described tack coat is closed with described PET film layer and described synergistic film laminating respectively.Solar cell backboard of the present utility model, by arranging the synergy rete of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widens solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved.In addition, the PVF rete in solar cell backboard of the present utility model is coated on PET film layer, enhances the caking property between PVF rete and PET film layer, weatherability and the barrier property to steam and oxygen, ensure that the service life of solar panel.

Description

Solar cell backboard
Technical field
The utility model relates to technical field of solar cells, particularly a kind of solar cell backboard.
Background technology
Day by day poor along with traditional energy, the whole world more and more becomes the focus of worldwide attention to the development and utilization of novel energy, you can have inexhaustible, nexhaustible, pollution-free, non-harmful feature and enjoy global concern as novel energy very much, and realize the industrialization of energy conversion.Current commercialization crystal silicon solar energy battery dominant absorption utilizes the visible ray of 400-700nm, light for the ultra-violet bands lower than 400nm does not absorb substantially, the energy of part sunshine is caused not to be used effectively, this have impact on the efficiency of solar cell to a certain extent, make the efficiency of Current commercial crystal silicon solar energy battery substantially be in 14%-17%, under the level of production of existing commercialization crystalline silicon, difficulty has and improves greatly.By the light wave that the existing cell piece of trans-utilization cannot transform, widen solar spectrum absorption region, better can excavate the potential of crystalline silicon battery plate, and produce larger benefit by increasing very little input, to the development of photovoltaic industry, there is far-reaching influence.
The photoelectric transformation efficiency of solar cell backboard on solar cell has impact, and the photoelectric transformation efficiency of the solar cell that solar cell backboard of the prior art makes is low.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of solar cell backboard that can strengthen the photoelectric transformation efficiency of solar cell.
The utility model provides a kind of solar cell backboard, comprise the PVF rete, PET film layer, tack coat and the synergy rete for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, described PVF rete is coated on PET film layer, and the two sides of described tack coat is closed with described PET film layer and described synergistic film laminating respectively.
Further, the thickness of described PVF rete is 15-45um.
Further, the thickness of described PET film layer is 100-400um.
Further, the thickness of described tack coat is 5-30um.
Further, the thickness of described synergy rete is 15-150um.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Solar cell backboard of the present utility model, by arranging the synergy rete of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widens solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved.In addition, the PVF rete in solar cell backboard of the present utility model is coated on PET film layer, enhances the caking property between PVF rete and PET film layer, weatherability and the barrier property to steam and oxygen, ensure that the service life of solar panel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the solar cell backboard of the utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with detailed description of the invention also with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
Refer to Fig. 1, the solar cell backboard that the utility model embodiment provides, comprise the PVF rete 1, PET film layer 2, tack coat 3 and the synergy rete 4 that set gradually from top to bottom.Wherein, PVF rete 1 is coated on PET film layer 2, namely PVF rete 1 be by PVF resin-coating after PET film layer 2, film forming after drying solidification, enhance the caking property between PVF rete 1 and PET film layer 2, weatherability and the barrier property to steam and oxygen, ensure that the service life of solar panel.Fit with PET film layer 2 and synergy rete 4 respectively in the two sides of tack coat 3.Synergy rete 4 is for absorbing the ultraviolet light of 10-400nm, and the light wave that the existing cell piece of energy conversion cannot transform, widens solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved.
Particularly, in the present embodiment, the film that synergy rete 4 is is matrix resin with vistanex and adhesion resin, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 4 is is matrix resin with LLDPE and ethylene-vinyl acetate copolymer, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 4 is is matrix resin with high density polyethylene (HDPE), ethylene-propylene copolymer and ethylene-vinyl acetate copolymer, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 4 is is matrix resin with low density polyethylene (LDPE), polypropylene and ethylene-vinyl acetate copolymer, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In the present embodiment, the thickness of PVF rete 1 is 15-45um, and the light transmittance of the PVF rete 1 in this thickness range is good, and the photoelectric conversion rate of the solar cell of making is high.For making the utility model reach best result of use, the thickness of PVF rete 1 is 30um.
In the present embodiment, the thickness of PET film layer 2 is 100-400um, and PET film layer 2 light transmission efficiency in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of PET film layer 2 is 250um.
In the present embodiment, the thickness of tack coat 3 is 5-30um, and tack coat 3 translucent effect in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of tack coat 3 is 20um.
In the present embodiment, the thickness of synergy rete 4 is 15-150um, and synergy rete 4 light transmission efficiency in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of synergy rete 4 is 75um.
The beneficial effects of the utility model are: solar cell backboard of the present utility model, by arranging the synergy rete 4 of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widen solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved.In addition, the PVF rete 1 in solar cell backboard of the present utility model is coated on PET film layer 2, enhances the caking property between PVF rete 1 and PET film layer 2, weatherability and the barrier property to steam and oxygen, ensure that the service life of solar panel.
The foregoing is only embodiment of the present utility model, not thereby the scope of the claims of the present utility model is limited, all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within scope of the present utility model.

Claims (5)

1. a solar cell backboard, it is characterized in that, comprise the PVF rete (1), PET film layer (2), tack coat (3) and the synergy rete (4) for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, described PVF rete (1) is coated on PET film layer (2), fits with described PET film layer (2) and described synergy rete (4) respectively in the two sides of described tack coat (3).
2. solar cell backboard according to claim 1, is characterized in that: the thickness of described PVF rete (1) is 15-45um.
3. solar cell backboard according to claim 1, is characterized in that: the thickness of described PET film layer (2) is 100-400um.
4. solar cell backboard according to claim 1, is characterized in that: the thickness of described tack coat (3) is 5-30um.
5. solar cell backboard according to claim 1, is characterized in that: the thickness of described synergy rete (4) is 15-150um.
CN201420858717.5U 2014-12-30 2014-12-30 Solar cell backboard Active CN204303838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420858717.5U CN204303838U (en) 2014-12-30 2014-12-30 Solar cell backboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420858717.5U CN204303838U (en) 2014-12-30 2014-12-30 Solar cell backboard

Publications (1)

Publication Number Publication Date
CN204303838U true CN204303838U (en) 2015-04-29

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CN201420858717.5U Active CN204303838U (en) 2014-12-30 2014-12-30 Solar cell backboard

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CN (1) CN204303838U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882502A (en) * 2015-05-15 2015-09-02 苏州市亘晟涂装工程有限公司 Solar battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882502A (en) * 2015-05-15 2015-09-02 苏州市亘晟涂装工程有限公司 Solar battery

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