CN104538472A - Solar energy battery module - Google Patents
Solar energy battery module Download PDFInfo
- Publication number
- CN104538472A CN104538472A CN201410785350.3A CN201410785350A CN104538472A CN 104538472 A CN104538472 A CN 104538472A CN 201410785350 A CN201410785350 A CN 201410785350A CN 104538472 A CN104538472 A CN 104538472A
- Authority
- CN
- China
- Prior art keywords
- encapsulating film
- solar module
- film
- backboard
- header board
- Prior art date
- 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.)
- Pending
Links
- -1 polytetrafluoroethylene Polymers 0.000 claims description 14
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000006261 foam material Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001774 Perfluoroether Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229920006280 packaging film Polymers 0.000 abstract 6
- 239000012785 packaging film Substances 0.000 abstract 6
- 229910021419 crystalline silicon Inorganic materials 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a solar energy battery module which comprises a front plate, a first packaging film, a battery piece, a second packaging film and a back plate. The two surfaces of the battery piece are covered with the first packaging film and the second packaging film respectively. The outside of the first packaging film is covered with the front plate. The outside of the second packaging film is covered with the back plate. The solar energy battery module is light in weight and thin in thickness, can meet the high loading requirement, extends the module application area, and improves the convenience and transportability of a crystalline silicon cell module.
Description
Technical field
The present invention relates to photovoltaic art, be specifically related to a kind of solar module.
Background technology
At present, conventional solar module is followed successively by toughened glass, EVA, cell piece, EVA, backboard from top to bottom, for strengthening the mechanical load of assembly, uses aluminum alloy frame at module edge.A set of conventional crystal silicon battery assembly (250W) weight is about 18kg, and wherein glass and aluminium frame weight are about 15.3kg, account for 84% of lightweight packages.General components, can not practical requirement in the projects such as the more weak roof of weight capacity.Present stage, members factory releases light components one after another, and thinning glass, seal ring thickness are common solutions, but this type of light components can only reach the requirement of 2400Pa mechanical load, the requirement about assembly snow load 5400Pa in IEC61215 standard can not be met, also limit its range of application.
PID(Potential induced degradation) found in 2005.Assembly makes to there is leakage current between glass, encapsulating material for a long time under action of high voltage, a large amount of accumulation is on cell piece surface, the passivation effect of battery surface is worsened, cause the open circuit voltage Voc of fill factor, curve factor FF, short-circuit current density Isc, cell piece to reduce, make assembly property lower than design standard.2010, NREL and Solon confirmed the p-type solar battery sheet no matter which kind of technology assembly adopts, and assembly has the risk of PID under back bias voltage.In the past few decades, cause component power significantly to decay due to system bias voltage, some decay even more than 50%, and can't see any defect in appearance from assembly.
The reason that solar module PID lost efficacy is, assembly is in hot and humid situation and strong voltage effect, and encapsulating material EVA is hydrolyzed the acetate K that can produce with glass produced
+, Na
+, Ca
2+deng formation electrolyte, the reverse potential difference that electrolyte cationic is enriched to the formation of cell piece surface under the effect of extra electric field causes PID phenomenon to produce.
Solar module is mainly used in large-scale power station, distributed power station and other power generation applications, inevitably accumulates dust, dirt in using for a long time, can affect the transmissivity of light on the one hand, and then have impact on the power of assembly; Dirt can form shade on the other hand, makes photovoltaic module form hot spot effect, reduces the generating efficiency of assembly, even burn assembly.For ensureing the operating efficiency of photovoltaic module, manually clean or hydraulic giant need be arranged to clean, but cleaning efficiency is low, the cycle long (being generally 10 days/70MW), wastes a lot of resources.
Summary of the invention
Goal of the invention: for existing, the invention provides a kind of lightweight, thickness is thin, can meet the requirement of top load, extends the range of application of assembly, improves the convenience of crystal silicon battery assembly and the solar module of rodability.
Technical scheme: a kind of solar module, comprises header board, the first encapsulating film, cell piece, the second encapsulating film and backboard, and five layers are superimposed successively, and two surfaces are coated with described cell piece respectively, the first encapsulating film and the second encapsulating film; Header board is coated with outside described first encapsulating film; Backboard is coated with outside described second encapsulating film.
Further, the thickness of described header board is 20 μm ~ 200 μm; The thickness of described first encapsulating film and the second encapsulating film is 0.25mm ~ 1mm; The thickness of described backboard is 5mm ~ 30mm.
Further, described header board is transparent fluorine film.
Further, described fluorine film is made up of one or more in polytetrafluoroethylene, perfluor (ethylene, propylene) copolymer, poly-perfluoroalkoxy resin, polytrifluorochloroethylene, ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar and polyvinyl fluoride.
Further, described first encapsulating film and the second encapsulating film are a kind of encapsulating film made in ethylene-vinyl acetate copolymer, polyolefin film, liquid silica gel.
Further, described backboard is that high molecular foam material is made.
Further, described high molecular foam material volume density is 20g/L ~ 200g/L.
Beneficial effect: compared with prior art, a kind of solar module provided by the invention, has the following advantages:
(1) thickness of backboard of the present invention is less, makes solar module meet the requirement of 5400Pa load; And this backboard has the excellent characteristic such as insulation, noise-proofing.
(2) header board of the present invention uses fluorine film, saves glass sheet and aluminium frame before in conventional solar module, the weight of assembly (about 250W) can be reduced to 6 ~ 10kg by 18kg; Extend the range of application of assembly, improve convenience and the rodability of solar module, outer surface is low-surface-energy, dust, dirtyly can to remove with the flushing of rainwater, without the need to manual cleaning; And the fluorine film of containing metal element can not stop solar module PID phenomenon; The light transmittance of fluorine film, more than 95%, higher than the light transmittance of coated toughened glass 92% ~ 94%, can help solar module power ascension.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
As shown in Figure 1, a kind of solar module, comprises header board 5, first encapsulating film 4, cell piece 3, second encapsulating film 2 and backboard 1, and 3 two surfaces are coated with cell piece respectively, the first encapsulating film 4 and the second encapsulating film 2; Header board 5 is coated with outside first encapsulating film 4; Backboard 1 is coated with outside second encapsulating film.
Described header board 5 is transparent fluorine film, is made up of one or more in polytetrafluoroethylene, perfluor (ethylene, propylene) copolymer, poly-perfluoroalkoxy resin, polytrifluorochloroethylene, ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar and polyvinyl fluoride; Most preferably be, use a kind of header board 5 made in ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar to have the useful life that excellent intensity, resistance to wear, durability, weatherability, water resistance etc. can extend solar module widely; Header board 5 containing metallic elements such as Na, K, Ca, can not stop the generation of solar module 1PID phenomenon; Header board 5 has 90 ~ 97% light penetrations, most preferably is more than 95%, and header board 5 light transmittance that polyvinylidene fluoride copolymer is made can reach more than 97%; Header board 5 thickness is 20 μm ~ 200 μm, most preferably is 25 μm ~ 100 μm.
First encapsulating film 4 and the second encapsulating film 2 are the one in ethylene-vinyl acetate copolymer, polyolefin film, liquid silica gel.Most preferably be polyolefin film, it has 10
16specific insulation, assembly PID can be prevented further to lose efficacy; The thickness of the first encapsulating film 4 and the second encapsulating film 2 is 0.25mm ~ 1mm, most preferably is, and the first encapsulating film 4 thickness is 0.5mm ~ 1mm, and the second encapsulating film thickness 2 is 0.3mm ~ 0.6mm.
Backboard 1 is at the back side of solar module, play protection, support, insulation, fire-retardant, anti-steam, backboard 1 main body is polymeric foam layer, and wherein high molecular foam material is the one in ethene, propylene, ethylene-propylene copolymer, ethene-butene-1 copolymer, ethene-1-hexene copolymer, ethylene-l-octane copolymer, ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer and ethylene maleic acid anhydride copolymer; Macromolecule foaming layer thickness is 2mm ~ 40mm, and volume density is 10g/L to 200g/L.Most preferably be thickness 10mm ~ 30mm, volume density is 20g/L to 100g/L.Because this backboard 1 has the excellent characteristic such as insulation, noise-proofing, the present invention is combined with building, good insulation, heat insulation, noise reduction can be played to building.
Claims (7)
1. a solar module, it is characterized in that: comprise header board (5), the first encapsulating film (4), cell piece (3), the second encapsulating film (2) and backboard (1), five layers are superimposed successively, and (3) two surfaces are coated with the first encapsulating film (4) and the second encapsulating film (2) to described cell piece respectively; Header board (5) is coated with outside described first encapsulating film (4); Backboard (1) is coated with outside described second encapsulating film (2).
2. a kind of solar module according to claim 1, is characterized in that: the thickness of described header board (5) is 20 μm ~ 200 μm; The thickness of described first encapsulating film (4) and the second encapsulating film (2) is 0.25mm ~ 1mm; The thickness of described backboard (1) is 5mm ~ 30mm.
3. a kind of solar module according to claim 1, is characterized in that: described header board (5) is transparent fluorine film.
4. a kind of solar module according to claim 3, is characterized in that: described fluorine film is by a kind of fluorine film made in polytetrafluoroethylene, perfluor (ethylene, propylene) copolymer, poly-perfluoroalkoxy resin, polytrifluorochloroethylene, ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar and polyvinyl fluoride.
5. a kind of solar module according to claim 1, is characterized in that: described first encapsulating film (4) and the second encapsulating film (2) are ethylene-vinyl acetate copolymer, a kind of encapsulating film made in polyolefin film, liquid silica gel.
6. a kind of solar module according to claim 1, is characterized in that: the backboard (1) that described backboard (1) is made for high molecular foam material.
7. a kind of solar module according to claim 6, is characterized in that: described high molecular foam material volume density is 20g/L ~ 200g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785350.3A CN104538472A (en) | 2014-12-17 | 2014-12-17 | Solar energy battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785350.3A CN104538472A (en) | 2014-12-17 | 2014-12-17 | Solar energy battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104538472A true CN104538472A (en) | 2015-04-22 |
Family
ID=52853971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785350.3A Pending CN104538472A (en) | 2014-12-17 | 2014-12-17 | Solar energy battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104538472A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199131A (en) * | 2015-09-01 | 2015-12-30 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene film for unmanned aerial vehicle |
| CN105237924A (en) * | 2015-09-01 | 2016-01-13 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene modified film being suitable for solar cell protective film |
| CN105590977A (en) * | 2015-12-18 | 2016-05-18 | 常熟高嘉能源科技有限公司 | Lightweight photovoltaic module |
| CN109390422A (en) * | 2017-08-10 | 2019-02-26 | 苏州赛伍应用技术股份有限公司 | A kind of lightweight photovoltaic module |
| CN110034198A (en) * | 2018-01-11 | 2019-07-19 | 中电电气(上海)太阳能科技有限公司 | Light flexible crystal silicon solar component, laminating method and roof solar system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376801A (en) * | 2010-08-11 | 2012-03-14 | 杜邦太阳能有限公司 | Backsheet for a photovoltaic module |
| CN102456766A (en) * | 2010-10-14 | 2012-05-16 | 无锡尚德太阳能电力有限公司 | Preparation method of solar cell assembly and prepared solar cell assembly by utilizing preparation method |
| CN103337539A (en) * | 2013-06-24 | 2013-10-02 | 中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心 | Photovoltaic thin film backboard |
| CN204315598U (en) * | 2014-12-17 | 2015-05-06 | 无锡德鑫太阳能电力有限公司 | A kind of solar module |
-
2014
- 2014-12-17 CN CN201410785350.3A patent/CN104538472A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376801A (en) * | 2010-08-11 | 2012-03-14 | 杜邦太阳能有限公司 | Backsheet for a photovoltaic module |
| CN102456766A (en) * | 2010-10-14 | 2012-05-16 | 无锡尚德太阳能电力有限公司 | Preparation method of solar cell assembly and prepared solar cell assembly by utilizing preparation method |
| CN103337539A (en) * | 2013-06-24 | 2013-10-02 | 中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心 | Photovoltaic thin film backboard |
| CN204315598U (en) * | 2014-12-17 | 2015-05-06 | 无锡德鑫太阳能电力有限公司 | A kind of solar module |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199131A (en) * | 2015-09-01 | 2015-12-30 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene film for unmanned aerial vehicle |
| CN105237924A (en) * | 2015-09-01 | 2016-01-13 | 北京汉能光伏投资有限公司 | Preparation method and application of polytetrafluoroethylene modified film being suitable for solar cell protective film |
| CN105237924B (en) * | 2015-09-01 | 2018-01-02 | 北京铂阳顶荣光伏科技有限公司 | A kind of preparation method and applications of polytetrafluoroethylmodified modified film suitable for protecting solar cell film |
| CN105199131B (en) * | 2015-09-01 | 2018-08-03 | 北京铂阳顶荣光伏科技有限公司 | A kind of preparation method and application of unmanned plane polytetrafluoroethylene film |
| CN105590977A (en) * | 2015-12-18 | 2016-05-18 | 常熟高嘉能源科技有限公司 | Lightweight photovoltaic module |
| CN109390422A (en) * | 2017-08-10 | 2019-02-26 | 苏州赛伍应用技术股份有限公司 | A kind of lightweight photovoltaic module |
| CN110034198A (en) * | 2018-01-11 | 2019-07-19 | 中电电气(上海)太阳能科技有限公司 | Light flexible crystal silicon solar component, laminating method and roof solar system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |