CN106847966A - A kind of anti-PID photovoltaic modulies - Google Patents

A kind of anti-PID photovoltaic modulies Download PDF

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Publication number
CN106847966A
CN106847966A CN201611182144.9A CN201611182144A CN106847966A CN 106847966 A CN106847966 A CN 106847966A CN 201611182144 A CN201611182144 A CN 201611182144A CN 106847966 A CN106847966 A CN 106847966A
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China
Prior art keywords
insulating barrier
pid
solar battery
photovoltaic modulies
battery sheet
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CN201611182144.9A
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Chinese (zh)
Inventor
梁枫
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Chengdu LVDI Technology Co Ltd
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Chengdu LVDI Technology Co Ltd
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Priority to CN201611182144.9A priority Critical patent/CN106847966A/en
Publication of CN106847966A publication Critical patent/CN106847966A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • H01L31/0488Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/02Details
    • H01L31/0216Coatings
    • H01L31/02161Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02167Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/20Supporting structures directly fixed to an immovable object
    • H02S20/22Supporting structures directly fixed to an immovable object specially adapted for buildings
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/10Photovoltaic [PV]
    • 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

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  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a kind of anti-PID photovoltaic modulies, including:Cover plate, upper tack coat, battery pack, lower tack coat, the base plate of multi-disc solar battery sheet composition, described five layers stack gradually and encapsulate composition from top to bottom, the cover plate and base plate are glass, gap is left between the solar battery sheet and adjacent solar battery sheet, the solar battery sheet is anti-PID solar battery sheets, photovoltaic module of the invention, translucency is good, and the glass curtain wall that can be used for building roof and alien invasion makes.

Description

A kind of anti-PID photovoltaic modulies
Technical field
The present invention relates to the technical field of solar cell, more particularly to a kind of anti-PID photovoltaic modulies.
Background technology
Solar cell as the emerging renewable sources of energy, because it can directly be converted solar energy into electrical energy, and long lifespan, Safeguard it is simple, be capable of achieving the advantage such as unattended and be widely used and quickly develop.Existing solar cell Component generally comprises frame, base plate, tack coat, the battery pack connected into by multiple cell pieces and glass cover-plate.Tack coat is set On base plate, the battery pack connected into by multiple cell pieces is bonded on tack coat, and glass cover-plate is covered on the battery pack.The sun The energy generally lighttight structure of battery component, is commonly positioned at building roof, for building interior electricity consumption facility provides power supply.With The development of Building technology, the roof of increasing building is main now is made by safety glass, and translucency is good.It is thus traditional Light tight solar cell module no longer be applicable.
The generated energy ability of solar cell module system and the use integrity problem in external environment are photovoltaic visitors The problem that family is paid close attention to the most.One of main appeal point of current solar cell customer complaint is exactly that component in use can There is the potential induction attenuation phenomenon of battery surface(PID)Induce the significantly decay of component power and because steam influences to be formed Black line, washmarking phenomenon, not only influence outward appearance, have an effect on the ability of the generated energy of component.
At present, many photovoltaic enterprises all from battery-end and component package material end by the improvement of technique, material it is excellent Change to solve the problems, such as PID and washmarking.Such as by setting a floor height volume resistance between packaged glass and packaging adhesive film EVA The insulating barrier of rate, can effectively prevent electric charge from being accumulated on cell piece surface, prevent the generation of component PID phenomenons.Washmarking and black line are existing As mainly appearing on adjacent sea market, because steam is more in seaside air, and contain salt, provided to micro-chemical environment good Good electrolyte, now, the steam for containing salt penetrates into component internal through the backboard of component, will cause the silver paste of battery surface Generation electrochemical oxidation reactions, form silver oxide, will also produce black line or washmarking phenomenon.So the low water vapor transmittance of component Treatment is very important.The method that the two problems can simultaneously be solved at present was not yet reported that.
The content of the invention
In view of this, the invention provides a kind of anti-PID photovoltaic modulies, so as to effectively take precautions against PID phenomenons and washmarking or black The generation of line phenomenon, while photovoltaic module of the invention, translucency is good, can be used for the glass curtain wall system of building roof and alien invasion Make.
In order to achieve the above object, the present invention provides following technical scheme:A kind of anti-PID photovoltaic modulies, including:Cover plate, Battery pack, lower tack coat, the base plate of upper tack coat, multi-disc solar battery sheet composition, described five layers stack gradually from top to bottom And composition is encapsulated, the cover plate and base plate are glass, are left between the solar battery sheet and adjacent solar battery sheet Gap, the solar battery sheet is anti-PID solar battery sheets.
Preferably, the cover plate and base plate are safety glass.
Preferably, the upper tack coat and lower tack coat are EVA adhesive film layer.
Preferably, the anti-PID solar battery sheets include the first insulating barrier for stacking gradually, battery body and contain There is the second insulating barrier of drier, wherein the first insulating barrier is formed in the smooth surface of battery body, the second insulating barrier is formed in electricity The back surface field face of pond body.
Preferably, form first insulating barrier by applying coating insulation material organic solution in smooth surface, by Back surface field face applies the insulating materials organic solution containing drier to form second insulating barrier, first insulating barrier and Second insulating barrier includes transparent insulation substrate.
Preferably, first insulating barrier also includes fluorescence transition material, the fluorescence transition material is with 15wt%- The mass percent of 20wt% is dispersed in the transparent insulation substrate, and the fluorescence transition material includes:Europium ion has Machine complex, or ytterbium ion organic coordination compound.
Preferably, the spectral transmittance of the dielectric substrate of first insulating barrier and the second insulating barrier is more than 92%, thickness Degree is about 0.5-1.2mm, specific insulation and is more than 1017Ω·cm。
Preferably, drier contained in second insulating barrier be silica, calcium oxide, nano-class molecular sieve, Or activated carbon.
The beneficial effects of the invention are as follows:Solar battery sheet proposed by the invention, effectively electrically connects in guarantee cell piece Connect, component effectively encapsulation on the basis of, can effectively contain the generation of component PID phenomenons and black line or washmarking phenomenon, so as to can carry Rise the quality of photovoltaic module, reduce cost of electricity-generating, while photovoltaic module of the invention, translucency is good, can be used for building roof and The glass curtain wall of alien invasion makes.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of anti-PID components one of the invention preferred embodiment;Fig. 2 is that the plan structure of Fig. 1 is illustrated Figure;Fig. 3 is the structural representation of anti-PID solar battery sheets;The mark of each part is as follows in accompanying drawing:1 is cover plate, and 2 is upper viscous Knot layer, 3 is battery pack, and 31 is anti-PID solar battery sheets, and 32 is gap, and 4 is lower tack coat, and 5 is base plate, and 6 is connection strap, 311 is the first insulating barrier, and 312 is battery body, and 313 is the second insulating barrier, and 314 is fluorescence transition material, and 315 is drier.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
As Figure 1-3, a kind of anti-PID photovoltaic modulies, including:Cover plate 1, upper tack coat 2, battery pack 3, lower tack coat 4, Base plate 5, described five layers stack gradually and encapsulate composition from top to bottom, wherein the cover plate 1 and base plate 5 are glass, preferably steel Change glass, battery pack 3 is made up of the anti-PID solar battery sheets 31 of multi-disc, and connection is welded between anti-PID solar battery sheets 31 Bar 6 is connected, and gap, upper tack coat 2 and lower tack coat 4 are left between the solar battery sheet and adjacent solar battery sheet It is transparent EVA adhesive film layer.Photovoltaic module of the invention, cover plate 1 and base plate 5 are clear glass, anti-PID solar battery sheets 31 Between leave gap 32, light can be passed through from gap 32, and translucency is good, can be used for the glass curtain wall system of building roof and alien invasion Make.
The anti-PID solar battery sheets 31 include the first insulating barrier 311 for stacking gradually, battery body 312 and contain There is the second insulating barrier 313 of drier 315, wherein the first insulating barrier 311 is formed in the smooth surface of battery body 312, second is exhausted Edge layer 313 is formed in the back surface field face of battery body 312, and described the is formed by applying coating insulation material organic solution in smooth surface One insulating barrier 311, second insulation is formed by applying the insulating materials organic solution containing drier 315 in back surface field face Layer 313, the insulating barrier 313 of first insulating barrier 311 and second includes transparent insulation substrate.Embodiments in accordance with the present invention, should The requirement of the first insulating barrier 311 and the second insulating barrier 313 can be:Specific insulation is greater than 10 17 power Ω cm;Spectrum Transmitance is more than 92%, can be PMMA, ethylene-tetrafluoroethylene copolymer or other there is the transparent medium of same performance;It is thick Degree is about 0.5-1.2mm.
Optionally, it is rare earth compounding that the first insulating barrier 311 is alternatively containing filler fluorescence transition material 314, have engine dyeing The insulating barrier of material or quantum dot, the organic coordination compound of the preferably organic coordination compound of europium ion, or ytterbium ion.Now require Fluorescent material proportion does not influence visible light-transmissive to be advisable to greatest extent, generally equal with the mass percent of 15wt%-20wt% It is even to be dispersed in dielectric substrate.
In the lower surface of battery body(Back surface field face)One layer of second insulating barrier 313 containing paddle dryer agent 315 of coating, its Middle drier can be silica, calcium oxide, nano-class molecular sieve, activated carbon etc..The matrix of second insulating barrier 313 and electricity First insulating barrier 311 of pond body upper surface is identical, and the Optimum Contents of drier 315 change with different desiccant materials, Not influence the dispersing uniformity of dielectric substrate of the drier under solution state, the flowable of dielectric substrate and this is exhausted Certain peel strength is advisable between edge matrix and battery body back surface field.The usual content of drier is the quality of 5wt%-8wt% Percentage.Drier is dispersed in dielectric substrate solution by methods such as high speed machine stirrings, particle diameter is the smaller the better, 1 micron Below.
The dielectric substrate of solution state battery body upper and lower surface coating can by spin coating, spraying coating, wet coating, The method such as drop coating or silk-screen printing is realized, by the sintering under uniform temperature after coating, can in cell piece upper and lower surface shape Into fine and close insulating barrier, this series of technical process can realize extensive operation by streamline.
The preparation method of anti-PID solar battery sheets is:A. solution is prepared:Insulating materials PMMA is dissolved in tetrahydrofuran etc. In organic solvent, density is about 1.1-1.9KG/L, so that the organic solution of PMMA is obtained, for forming solar battery sheet Surface(Smooth surface)Insulating barrier.
In mass ratio 8% weighs silica, is stirred by high speed machine, is dispersed in above-mentioned PMMA solution, so that The PMMA solution containing silica is obtained, for forming battery body lower surface(Back surface field face)Insulating barrier.
In mass ratio 15% weighs the organic coordination compound of europium ion, is stirred by high speed machine, is dispersed in above-mentioned PMMA In solution, so that the PMMA solution of the organic coordination compound containing europium ion is obtained, for forming battery body upper surface(Light Face)Insulating barrier, adding the purpose of the organic coordination compound of above-mentioned europium ion is:By what is changed under conversion on fluorescence or fluorescence Principle, by before sunshine that script conventional batteries can not be used or that utilization rate is relatively low such as 300nm or 1000nm it Infrared light afterwards is transformed into solar cell optimum utilization wave band, improves component power.
B. solar battery sheet surface is applied:The positive and negative main gate line of cell piece is protected using half tone or mask, The PMMA solution of the organic coordination compound containing europium ion is coated in by solar cell by silk-screen printing or spray Tu side respectively The upper surface of piece(Smooth surface)Non-master gate part, and the PMMA solution containing calcium oxide is coated uniformly on solar battery sheet Lower surface(Back surface field face)Non-master gate part.Cell piece is put into sintering furnace less than 260 degree again and is sintered 20min, etc. After organic solvent volatilization is dry, the insulating barrier of densification can be formed in the smooth surface of battery and back surface field face, as shown in Figure 3.Now, These batteries are carried out electrical connection, the encapsulation of normal procedure again, the component for obtaining will have very in terms of PID and washmarking, black line Big advantage.
For PID, in addition to normal component package is protected, due to foring other one layer of densification again on cell piece surface Uniform PMMA insulating barriers, it with cell piece surface in the insulating barrier that battery surface is formed by packaging adhesive films such as EVA than only being tied Close more preferably, evenly and insulating properties is more preferable(Duplicate protection).The PMMA insulating barriers will prevent leakage current electric charge in solar-electricity The accumulation of pool surface, effectively prevents due to the power attenuation that electrical potential difference causes.
And for washmarking or black line, cell piece upper surface(Smooth surface)The insulating barrier of coating has a certain degree of to steam Intercept, further, since in cell piece lower surface(Back surface field face)The insulating barrier containing drier calcium oxide is coated with, is can absorb from group At part backboard invade steam so that effectively intercept steam from cell piece it is hidden split or fragmentation at enter.By cell piece upper table Face(Smooth surface)And lower surface(Back surface field face)Insulating barrier dual barrier, the moisture content of component internal can be greatly reduced, So as to reduce or avoid the generation of the silver oxide for causing black line or washmarking.It is easy that the structural manufacturing process is realized, can large-scale industry Metaplasia is produced, and be can be widely applied to during component is produced effectively to prevent component PID phenomenons and washmarking phenomenon.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (8)

1. a kind of anti-PID photovoltaic modulies, it is characterised in that including:What cover plate, upper tack coat, multi-disc solar battery sheet were constituted Battery pack, lower tack coat, base plate, described five layers stack gradually and encapsulate composition from top to bottom, and the cover plate and base plate are glass, Gap is left between the solar battery sheet and adjacent solar battery sheet, the solar battery sheet is the anti-PID sun Can cell piece.
2. anti-PID photovoltaic modulies according to claim 1, it is characterised in that the cover plate and base plate are safety glass.
3. anti-PID photovoltaic modulies according to claim 1, it is characterised in that the upper tack coat and lower tack coat are EVA Adhesive film.
4. anti-PID photovoltaic modulies according to claim 1, it is characterised in that the anti-PID solar battery sheets include according to First insulating barrier of secondary stacking, battery body and the second insulating barrier containing drier, wherein the first insulating barrier is formed in electricity The smooth surface of pond body, the second insulating barrier is formed in the back surface field face of battery body.
5. anti-PID photovoltaic modulies as claimed in claim 4, it is characterised in that organic by smooth surface applying coating insulation material Solution forms first insulating barrier, is formed by applying insulating materials organic solution containing drier in back surface field face Second insulating barrier, first insulating barrier and the second insulating barrier include transparent insulation substrate.
6. anti-PID photovoltaic modulies as claimed in claim 5, it is characterised in that first insulating barrier is also changed including fluorescence Material, the fluorescence transition material is dispersed in the transparent insulation substrate with the mass percent of 15wt%-20wt%, institute Stating fluorescence transition material includes:The organic coordination compound of europium ion, or ytterbium ion organic coordination compound.
7. the processing method of solar battery sheet as claimed in claim 5, it is characterised in that first insulating barrier and second The spectral transmittance of the dielectric substrate of insulating barrier is that more than 92%, thickness is about 0.5-1.2mm, specific insulation more than 1017Ω· cm。
8. anti-PID photovoltaic modulies as claimed in claim 4, it is characterised in that contained drier in second insulating barrier It is silica, calcium oxide, nano-class molecular sieve or activated carbon.
CN201611182144.9A 2016-12-20 2016-12-20 A kind of anti-PID photovoltaic modulies Pending CN106847966A (en)

Priority Applications (1)

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CN201611182144.9A CN106847966A (en) 2016-12-20 2016-12-20 A kind of anti-PID photovoltaic modulies

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Application Number Priority Date Filing Date Title
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102779904A (en) * 2012-08-17 2012-11-14 常州天合光能有限公司 Method for preventing adverse polarization and black line phenomena of crystalline-silicon solar module
CN102881750A (en) * 2012-08-21 2013-01-16 王辉 Solar cell module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102779904A (en) * 2012-08-17 2012-11-14 常州天合光能有限公司 Method for preventing adverse polarization and black line phenomena of crystalline-silicon solar module
CN102881750A (en) * 2012-08-21 2013-01-16 王辉 Solar cell module

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