CN102208466A - Solar cell panel - Google Patents
Solar cell panel Download PDFInfo
- Publication number
- CN102208466A CN102208466A CN 201110125965 CN201110125965A CN102208466A CN 102208466 A CN102208466 A CN 102208466A CN 201110125965 CN201110125965 CN 201110125965 CN 201110125965 A CN201110125965 A CN 201110125965A CN 102208466 A CN102208466 A CN 102208466A
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- China
- Prior art keywords
- adhesive
- ultraviolet
- agent
- eva
- photocell
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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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- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a solar cell panel, comprising a glass plate, a photocell slice and a back plate which are overlapped in sequence, wherein a first adhesive for ultraviolet rays to penetrate through is arranged between the glass plate and the photocell slice; and a second adhesive containing an ultraviolet ray cut-off agent is arranged between the photocell slice and the back plate. In the invention, the encapsulation loss of the solar cell panel is lower than that obtained by directly using a double-layer ethylene-vinyl acetate copolymer (EVA) containing the ultraviolet ray cut-off agent, and other properties of the solar cell panel are substantially as same as those of the EVA containing the ultraviolet ray cut-off agent; it is proved by an anti-ultraviolet experiment that the structure provides a better protection to the back plate in comparison with the double-layer EVA without the ultraviolet ray cut-off agent and has no difference with the double-layer EVA with the ultraviolet ray cut-off agent. By using the combining method, the encapsulation loss of the module can be reduced by 0.5% on the premise that the production cost of the module is not increased.
Description
Technical field
The present invention relates to technical field of solar batteries, especially a kind of solar panel.
Background technology
The sunlight that solar cell commonly used is absorbed, mainly concentrate in the scope that wavelength is 330um～1200um, yet in the development of high-efficiency battery, mainly be to utilize the sunlight of wavelength below 300um, i.e. ultraviolet ray, because ultraviolet wavelength is short, electronic vibration value height, produce power is big, and assembly conversion efficiency room for promotion is big.
And absorb the photovoltaic module of sunlight in the existing solar cell, i.e. solar panel, used backboard major part is thermoplastic elastic material, its inboard does not have anti-ultraviolet property, causes that easily backboard wears out.For preventing that backboard is aging, the general ethylene-vinyl acetate copolymer (EVA) that contains the ultraviolet cutoff agent that adopts of assembly production firm, can reduce the aging of battery back-sheet although it is so, but reduce the utilization ratio of assembly to sunlight, especially the influence to existing high efficiency battery is quite big.
Summary of the invention
The present invention is directed to deficiency, propose a kind of solar panel, reduced the aging generation of backboard resin, improved the utilance of assembly simultaneously sunlight.
In order to realize the foregoing invention purpose, the invention provides following technical scheme: a kind of solar panel, comprise overlapping successively glass plate, photocell sheet and backboard, be provided with first adhesive that ultraviolet ray sees through between described glass plate and the photocell sheet, be provided with second adhesive that contains the ultraviolet cutoff agent between described photocell sheet and the backboard.
Preferably, described first adhesive is an ethylene-vinyl acetate copolymer.
Preferably, described second adhesive mixture that is ultraviolet cutoff agent and ethylene-vinyl acetate copolymer.
Preferably, described ultraviolet cutoff agent is titanium oxide-cerium oxide composition, and both mol ratios are 1～5: 1～5.
Preferably, the percentage by weight of described second adhesive middle-ultraviolet lamp closing agent and ethylene-vinyl acetate copolymer is 20%～40%: 60%～80%.
Preferably, the thickness of described second adhesive is 20 nanometers～300 nanometers.
Compared with prior art, the present invention adopts the adhesive of two kinds of different performances that glass plate, photocell sheet and backboard are bonded together, and forms solar panel; Wherein the adhesive between glass plate and the photocell sheet to ultraviolet ray without hindrance or absorption, the adhesive between photocell sheet and the backboard then fully ultraviolet-cutoff see through.
The sunlight middle-ultraviolet lamp is radiated on the solar panel of the present invention, to pass glass plate, ground floor adhesive and photocell sheet successively, because the ground floor adhesive does not have influence to ultraviolet ray, the photocell sheet will make full use of ultraviolet power conversion and become electric energy, and the residue ultraviolet ray that sees through the photocell sheet will make its flavescence aging by second layer adhesive by not exposing on the backboard.
Show through test, the encapsulation loss late of solar panel of the present invention (encapsulation loss late=(measured power after assembly theoretical power (horse-power)-encapsulation)/assembly theoretical power (horse-power)) is lower than the direct ethylene-vinyl acetate copolymer (EVA) that uses bilayer to contain the ultraviolet cutoff agent, and other performance does not have much discrepancy with the EVA that contains the ultraviolet cutoff agent; By this kind of uvioresistant evidence structure the protection of backboard is better than the EVA of double-deck no ultraviolet cutoff agent, and ultraviolet cutoff EVA indistinction is arranged with bilayer.Use this kind compound mode under the prerequisite that does not improve the assembly production cost, can make the encapsulation loss late of assembly reduce by 0.5%.
Embodiment
Describe the present invention below in conjunction with specific embodiment, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
Embodiment 1
A kind of solar panel, form by glass plate, first adhesive phase, photocell sheet, second adhesive phase and backboard successively, first adhesive phase is bonded as one glass plate and photocell sheet, and this adhesive does not have influence to the sunlight middle-ultraviolet lamp, i.e. ultraviolet ray is passed this adhesive energy and do not changed.Second adhesive phase bonds together photocell sheet another side and backboard, wherein contain ultraviolet impervious ultraviolet cutoff agent in second adhesive, this ultraviolet cutoff agent is titanium oxide-cerium oxide composition, both mol ratios are 1: 5, account for 20wt% in adhesive, thickness is 300 nanometers.
The body material of above-mentioned two layers of adhesive is the EVA material.
Embodiment 2
A kind of solar panel, form by glass plate, first adhesive phase, photocell sheet, second adhesive phase and backboard successively, first adhesive phase is bonded as one glass plate and photocell sheet, and this adhesive does not have influence to the sunlight middle-ultraviolet lamp, i.e. ultraviolet ray is passed this adhesive energy and do not changed.Second adhesive phase bonds together photocell sheet another side and backboard, wherein contain ultraviolet impervious ultraviolet cutoff agent in second adhesive, this ultraviolet cutoff agent is titanium oxide-cerium oxide composition, both mol ratios are 5: 1, account for 40wt% in adhesive, thickness is 20 nanometers.
The body material of above-mentioned two layers of adhesive is the EVA material.
Embodiment 3
A kind of solar panel, form by glass plate, first adhesive phase, photocell sheet, second adhesive phase and backboard successively, first adhesive phase is bonded as one glass plate and photocell sheet, and this adhesive does not have influence to the sunlight middle-ultraviolet lamp, i.e. ultraviolet ray is passed this adhesive energy and do not changed.Second adhesive phase bonds together photocell sheet another side and backboard, wherein contain ultraviolet impervious ultraviolet cutoff agent in second adhesive, this ultraviolet cutoff agent is titanium oxide-cerium oxide composition, both mol ratios are 1: 1, account for 30wt% in adhesive, thickness is 150 nanometers.
The body material of above-mentioned two layers of adhesive is the EVA material.
Contrast experiment's example
The solar panel that the foregoing description is obtained, with two layers of adhesive be that the solar panel of same material compares experiment, wherein same material is respectively the EVA material (representing with F406+F406) of first adhesive phase of the present invention and the EVA material that contains the ultraviolet cutoff agent of second adhesive phase (the ultraviolet cutoff agent is titanium oxide-cerium oxide composition, both mol ratios are 1: 1, in adhesive, account for 30wt%), (representing) with F806+F806.
According to the problem that two layers of adhesive about the solar cell panel assembly inside may occur, done following 5 tests:
1, encapsulation loss late contrast test:
With above-mentioned five kinds of solar panels, be 25 degrees centigrade in temperature, relative humidity is to utilize the solar energy analog meter to test under 40% the operational environment.Test average data feedback is as follows:
| Adhesive type | Embodiment 1 | Embodiment 2 | Embodiment 3 | F806+F806 | F406+F406 |
| Envelope is changeed loss late | 1.29％ | 1.35％ | 1.38％ | 1.95％ | 1.93％ |
Annotate: used battery is that efficient is 16.1～16.0.Other raw material are all identical.
Result of the test shows, the encapsulation loss late of the embodiment of the invention is lower by 0.57% than traditional two ultraviolet cutoff agent, and high by 0.02% than no ultraviolet cutoff can be ignored.Hence one can see that adopts two kinds of different binder combination modes of the present invention really than having the EVA encapsulation loss late of closing agent low with double-deck.
2, anti-aging test:
With above-mentioned five kinds of solar panels, respectively do five, be in 85 ℃, relative humidity is to place in 85% the ageing oven to carry out anti-aging test in 2000 hours.The test data feedback is as follows:
| Adhesive type | Embodiment 1 | Embodiment 2 | Embodiment 3 | F806+F806 | F406+F406 |
| Test back electrical property | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal |
| Test back outward appearance | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal | 5 equal pieces are normal |
Result of the test shows that the electrical property of above-mentioned five kinds of solar panels and outward appearance meet assembly inner quality standard and electrical property basically identical.Hence one can see that uses the compound mode of two kinds of different adhesives of the present invention little to the influence in useful life of assembly.
3, disbonded test:
Experimental condition: at operating ambient temperature is under 28 degrees centigrade, gets the sample of 300mm*50mm and does degree of cross linking test, and the test data feedback is as follows:
| Adhesive type | Embodiment 1 | Embodiment 2 | Embodiment 3 | F806+F806 | F406+F406 |
| Peel strength with backboard | ?26N | ?25N | ?24N | 25N | 33N |
| Peel strength with glass | ?45N | ?43N | ?46N | 39N | 43N |
Result of the test shows, the peel strength of above-mentioned five kinds of solar panels can both satisfy product requirement, and (the assembly inner quality standard requires the peel strength 〉=30N/cm of EVA and glass, with backboard peel strength 〉=15N/cm).And change little.The compound mode that two kinds of different adhesives of the present invention are described does not make the adhesive strength of assembly weaken.
4, degree of cross linking test: (EVA glue connection degree: the EVA glued membrane forms crosslinked degree through being heating and curing)
Experiment condition: at operating ambient temperature is under 28 degrees centigrade, gets the sample of 100mm*100mm and does degree of cross linking test, and it is as follows to test the data feedback:
Result of the test shows, the degree of cross linking of above-mentioned five kinds of solar panels and is more or less the same all in 80%～95% scope that inner quality standard requires.The degree of cross linking of the compound mode of two kinds of different adhesives of the present invention that hence one can see that satisfies production requirement.
5. uvioresistant test:
It is 15kWhm at 280nm to the ultra-violet radiation of 385nm scope that assembly is placed wavelength
-2, its medium wavelength is 280nm to the ultra-violet radiation of 320nm is 5kWhm
-2In the uv test case, the test data feedback is as follows:
Result of the test shows that the compound mode of two kinds of different adhesives of the present invention can satisfy the requirement of assembly to anti-ultraviolet aging.
Show that by above five tests the encapsulation loss late of the compound mode of two kinds of different adhesives of the present invention is lower than two ultraviolet cutoff EVA, and do not have much discrepancy with no ultraviolet cutoff EVA; Test the EVA that visible its protection to backboard is better than double-deck no ultraviolet cutoff by uvioresistant, and have ultraviolet cutoff EVA not have big difference with bilayer.Use this kind compound mode under the prerequisite that does not improve the assembly production cost, can make the encapsulation loss late of assembly reduce by 0.5%.So the compound mode of two kinds of different adhesives of the present invention is better than the compound mode of traditional EVA of the same race.
It below only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. solar panel, comprise overlapping successively glass plate, photocell sheet and backboard, it is characterized in that: be provided with permeable first adhesive of ultraviolet ray between described glass plate and the photocell sheet, be provided with second adhesive that contains the ultraviolet cutoff agent between described photocell sheet and the backboard.
2. solar panel as claimed in claim 1 is characterized in that: described first adhesive is an ethylene-vinyl acetate copolymer.
3. solar panel as claimed in claim 1 is characterized in that: described second adhesive is the mixture of ultraviolet cutoff agent and ethylene-vinyl acetate copolymer.
4. as claim 1 or 3 described solar panels, it is characterized in that: described ultraviolet cutoff agent is titanium oxide-cerium oxide composition, and both mol ratios are 1～5: 1～5.
5. solar panel as claimed in claim 4 is characterized in that: the percentage by weight of described second adhesive middle-ultraviolet lamp closing agent and ethylene-vinyl acetate copolymer is 20%～40%: 60%～80%.
6. solar panel as claimed in claim 5 is characterized in that: the thickness of described second adhesive is 20 nanometers～300 nanometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110125965 CN102208466A (en) | 2011-05-16 | 2011-05-16 | Solar cell panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110125965 CN102208466A (en) | 2011-05-16 | 2011-05-16 | Solar cell panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102208466A true CN102208466A (en) | 2011-10-05 |
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ID=44697209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110125965 Pending CN102208466A (en) | 2011-05-16 | 2011-05-16 | Solar cell panel |
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| Country | Link |
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| CN (1) | CN102208466A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623533A (en) * | 2012-03-16 | 2012-08-01 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and production method of solar module |
| CN104597012A (en) * | 2015-01-08 | 2015-05-06 | 内蒙古科技大学 | Method for detecting benzoyl peroxide (BPO) in wheat meal based on fluorescence quenching method |
| CN108987512A (en) * | 2018-06-04 | 2018-12-11 | 苏州中来光伏新材股份有限公司 | A kind of light flexible solar cell module |
| CN114213966A (en) * | 2021-11-30 | 2022-03-22 | 上海空间电源研究所 | Protective layer for space solar cell array surface and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136061A (en) * | 1995-03-16 | 1996-11-20 | 通用电气公司 | Acrylic coatings containing inorganic UV screen |
| CN1603267A (en) * | 2004-10-29 | 2005-04-06 | 武汉理工大学 | Coated glass with ultraviolet ray cutting-off function and preparation method thereof |
| CN102044583A (en) * | 2009-10-21 | 2011-05-04 | 无锡尚德太阳能电力有限公司 | Solar battery assembly and laminating method thereof |
-
2011
- 2011-05-16 CN CN 201110125965 patent/CN102208466A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136061A (en) * | 1995-03-16 | 1996-11-20 | 通用电气公司 | Acrylic coatings containing inorganic UV screen |
| CN1603267A (en) * | 2004-10-29 | 2005-04-06 | 武汉理工大学 | Coated glass with ultraviolet ray cutting-off function and preparation method thereof |
| CN102044583A (en) * | 2009-10-21 | 2011-05-04 | 无锡尚德太阳能电力有限公司 | Solar battery assembly and laminating method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623533A (en) * | 2012-03-16 | 2012-08-01 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and production method of solar module |
| CN102623533B (en) * | 2012-03-16 | 2014-07-23 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and production method of solar module |
| CN104597012A (en) * | 2015-01-08 | 2015-05-06 | 内蒙古科技大学 | Method for detecting benzoyl peroxide (BPO) in wheat meal based on fluorescence quenching method |
| CN104597012B (en) * | 2015-01-08 | 2017-09-26 | 内蒙古科技大学 | A kind of method that benzoyl peroxide in wheat flour is detected based on fluorescence quenching method |
| CN108987512A (en) * | 2018-06-04 | 2018-12-11 | 苏州中来光伏新材股份有限公司 | A kind of light flexible solar cell module |
| CN114213966A (en) * | 2021-11-30 | 2022-03-22 | 上海空间电源研究所 | Protective layer for space solar cell array surface and preparation method thereof |
| CN114213966B (en) * | 2021-11-30 | 2022-12-09 | 上海空间电源研究所 | Protective layer for space solar cell array surface and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20111005 |