CN104992997A - Solar cell - Google Patents
Solar cell Download PDFInfo
- Publication number
- CN104992997A CN104992997A CN201510249083.2A CN201510249083A CN104992997A CN 104992997 A CN104992997 A CN 104992997A CN 201510249083 A CN201510249083 A CN 201510249083A CN 104992997 A CN104992997 A CN 104992997A
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- CN
- China
- Prior art keywords
- solar cell
- film layer
- rete
- silica gel
- terminal box
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- 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.)
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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
Abstract
The invention provides a solar cell comprising a junction box, a plasma layer, silica gel, and a backplane. The plasma layer is arranged between the junction box and the silica gel. The junction box is connected with the backplane through the silica gel. The backplane comprises a transparent weatherproof film layer, a PET film layer, and an efficiency-increasing film layer which are successively arranged from top to bottom, wherein the efficiency-increasing film layer is used for absorbing ultraviolet light from 10 to 400nm. The transparent weatherproof film layer, the PET film layer, and the efficiency-increasing film layer are formed by co-extrusion. The junction box of the solar cell is more firmly combined with the backplane and the solar cell has a high photoelectric conversion rate and low cost.
Description
Technical field
Invention relates to technical field of solar, particularly a kind of solar cell.
Background technology
In recent years, environmental pollution has caused global concern, and the greenhouse effect caused by the carbon dioxide especially discharged by mineral matter fuel combustion are a serious problem especially.Therefore, people wish to develop non-polluting energy sources strongly.As novel energy, can there is inexhaustible, nexhaustible, pollution-free, non-harmful feature and enjoy global concern, and realizing the industrialization of energy conversion very much.At present, one of people's Main Means utilizing solar energy is, utilizes solar cell to carry out photoelectric conversion to solar energy, solar energy is changed into electric energy.
Existingly can generally comprise terminal box and backboard by battery very much, silica gel is adopted to be connected between terminal box with backboard, in process of production, inevitably the surface that contacts with silica gel of terminal box is unclean, and because terminal box is that plastics material is made, the face that terminal box contacts with silica gel is comparatively level and smooth, causes the caking ability of terminal box and silica gel inadequate, thus it is firm not to make terminal box be combined with backboard, terminal box easily comes off.
In addition, 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 sunlight 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.Therefore, the optoelectronic transformation efficiency of solar cell of the prior art is low.
Further, the weathering layer of the backboard of solar cell of the prior art is made up of fluorine resin, expensive, thus causes the cost of solar cell higher.
Summary of the invention
In view of this, the object of invention is to provide that a kind of terminal box is combined with backboard more firmly, optoelectronic transformation efficiency is high and the solar cell that cost is low.
Invention provides a kind of solar cell, and comprise terminal box, plasmasphere, silica gel and backboard, wherein, described plasmasphere is arranged between described terminal box and described silica gel, and described terminal box is connected with described backboard by described silica gel; Described backboard comprises the transparent weatherability PC rete, PET film layer and the synergy rete for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, described transparent weatherability PC rete, described PET film layer and described synergy rete coextrusion mold.
Further, the thickness of described transparent weatherability PC rete is 30-50um.
Further, the thickness of described PET film layer is 100-400um.
Further, the thickness of described synergy rete is 15-150um.
Due to the utilization of technique scheme, invention compared with prior art has following advantages:
The terminal box of solar cell of invention be combined with backboard more firm, optoelectronic transformation efficiency is high and cost is low.
Accompanying drawing explanation
Fig. 1 be inventive embodiments too can the structural representation of battery.
Fig. 2 is the structural representation of the backboard in Fig. 1.
Embodiment
For making the object of invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and with reference to accompanying drawing, invention is further described.Should be appreciated that, these describe just exemplary, and do not really want to limit scope of invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid the concept unnecessarily obscuring invention.
Please refer to Fig. 1 and Fig. 2, the solar cell that inventive embodiments provides, comprise terminal box 1, plasmasphere 2, silica gel 3 and backboard 4.Wherein, plasmasphere 2 is arranged between terminal box 1 and silica gel 3, and terminal box 1 is connected with backboard 4 by silica gel 3.Backboard 4 comprises the transparent weatherability PC rete 41, PET film layer 42 and the synergy rete 43 that set gradually from top to bottom.Be noted that, the face that terminal box 1 contacts with silica gel 3 adopts conventional plasma spraying to reach setting-up time (such as 3 seconds), add the frictional property of terminal box 1 and silica gel 3 joint face, thus strengthen the caking ability of terminal box 1 and silica gel 3, make terminal box 1 more firm with the combination of backboard 4, terminal box 1 difficult drop-off.In addition, transparent weatherability PC rete 41, PET film layer 42 and synergy rete 43 coextrusion mold, namely the backboard 4 of invention solar cell is the micro-nano structure formed by coextrusion mold, enhance the caking property between transparent weatherability PC rete 41, PET film layer 42 and synergy rete 43, weatherability and the barrier property to steam and oxygen, ensure that the useful life of backboard 4, and the thickness of backboard 4 can be reduced.Synergy rete 43 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, and the electricity conversion of the solar cell invented is improved.Meanwhile, the transparent weatherability PC rete 41 utilizing price lower replaces expensive fluorine-containing rete, reduces the cost of backboard 4, thus reduces the cost of the solar cell of invention.
The transparent weatherability PC film 1 of invention, by weight portion be the Merlon of 90-110 part, the ultraviolet absorber of 0.1-10 part, 0.1-10 part ultraviolet light screener, the light stabilizer of 0.1-1 part, the modify polymeric resins of 1-10 part form; Wherein, ultraviolet absorber is benzophenone class and BTA, is selected from the one in UV-234, UV-326 or UV-1577; Ultraviolet light screener is inorganic nano ultraviolet light screener, is selected from TiO2 or ZnO; Light stabilizer is hindered amine as light stabilizer, is selected from the one in 944,977 or 622.Select the PC wearing layer 1 of above formula; ensure that solar cell is had good weatherability, ageing-resistant, resistance to rainwater, UV resistant, high-low temperature resistant, the corrosion of resistance to solute and insulating properties etc. by rear panel compound film; various excellent performance, has long-acting lasting defencive function to solar module.
Particularly, in the present embodiment, the film that synergy rete 43 is is matrix resin with vistanex and adhesion resin, and synergy rete 43 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 43 is is matrix resin with LLDPE and ethylene-vinyl acetate copolymer, and synergy rete 43 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 43 is is matrix resin with high density polyethylene (HDPE), ethylene-propylene copolymer and ethylene-vinyl acetate copolymer, and synergy rete 43 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 43 is is matrix resin with low density polyethylene (LDPE), polypropylene and ethylene-vinyl acetate copolymer, and synergy rete 43 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In the present embodiment, the thickness of transparent weatherability PC rete 41 is 30-50um, and the light transmittance of the transparent weatherability PC rete 41 in this thickness range is good, makes the photoelectric conversion rate of the solar cell invented high.For making invention reach best result of use, the thickness of transparent weatherability PC rete 41 is 40um.
In the present embodiment, the thickness of PET film layer 42 is 100-400um, and PET film layer 42 light transmission efficiency in this thickness range is good, makes the photoelectric conversion efficiency of the solar cell invented high.For making invention reach best result of use, the thickness of PET film layer 42 is 250um.
In the present embodiment, the thickness of synergy rete 43 is 15-150um, and synergy rete 43 light transmission efficiency in this thickness range is good, makes the photoelectric conversion efficiency of the solar cell invented high.For making invention reach best result of use, the thickness of synergy rete 43 is 75um.
The beneficial effect of the invention is: the terminal box of the solar cell of invention is combined with backboard more firmly, optoelectronic transformation efficiency is high and cost is low.
The foregoing is only inventive embodiment, not thereby limit the scope of the claims of invention, within all spirit in invention and principle, any amendment made, equivalent replacement, improvement etc., all should be included within scope of invention.
Claims (4)
1. a solar cell, it is characterized in that, comprise terminal box (1), plasmasphere (2), silica gel (3) and backboard (4), wherein, described plasmasphere (2) is arranged between described terminal box (1) and described silica gel (3), and described terminal box (1) is connected with described backboard (4) by described silica gel (3); Described backboard (4) comprise set gradually from top to bottom transparent weatherability PC rete (41), PET film layer (2) and the synergy rete (3) for the ultraviolet light that absorbs 10-400nm, described transparent weatherability PC rete (41), described PET film layer (42) and described synergy rete (43) coextrusion mold.
2. solar cell according to claim 1, is characterized in that: the thickness of described transparent weatherability PC rete (41) is 30-50um.
3. solar cell according to claim 1, is characterized in that: the thickness of described PET film layer (42) is 100-400um.
4. solar cell according to claim 1, is characterized in that: the thickness of described synergy rete (43) is 15-150um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249083.2A CN104992997A (en) | 2015-05-15 | 2015-05-15 | Solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249083.2A CN104992997A (en) | 2015-05-15 | 2015-05-15 | Solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104992997A true CN104992997A (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510249083.2A Pending CN104992997A (en) | 2015-05-15 | 2015-05-15 | Solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104992997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513260A (en) * | 2016-06-15 | 2017-12-26 | 天津栋天新能源科技有限公司 | A kind of high antifog pmma material of folding used for solar batteries and preparation method thereof |
-
2015
- 2015-05-15 CN CN201510249083.2A patent/CN104992997A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513260A (en) * | 2016-06-15 | 2017-12-26 | 天津栋天新能源科技有限公司 | A kind of high antifog pmma material of folding used for solar batteries and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cui Dezhu Inventor before: Xu Weiming |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161010 Address after: Zhujiang Road Wuzhong District Mudu town of Suzhou city in Jiangsu province 215000 No. 368 Applicant after: The Suzhou Coude Instrument Ltd. that traces to the source Address before: East bank in the town of Suzhou high tech Development Zone in Jiangsu Province under a bridge 215000 Applicant before: Gensheng Painting Engineering Co., Ltd., Suzhou City |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151021 |
|
| WD01 | Invention patent application deemed withdrawn after publication |