CN106469762A - A kind of solar module of anti-PID effect - Google Patents

A kind of solar module of anti-PID effect Download PDF

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Publication number
CN106469762A
CN106469762A CN201611100175.5A CN201611100175A CN106469762A CN 106469762 A CN106469762 A CN 106469762A CN 201611100175 A CN201611100175 A CN 201611100175A CN 106469762 A CN106469762 A CN 106469762A
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CN
China
Prior art keywords
layer
cell piece
solar
barrier layer
encapsulated layer
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Pending
Application number
CN201611100175.5A
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Chinese (zh)
Inventor
梁结平
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Individual
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Individual
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Priority to CN201611100175.5A priority Critical patent/CN106469762A/en
Publication of CN106469762A publication Critical patent/CN106469762A/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
    • 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
    • H01L31/0481Encapsulation of modules characterised by the composition of the encapsulation material
    • 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

The present invention relates to a kind of solar module of anti-PID effect, including module frame, it is arranged in the mounting groove of module frame the glass used for solar batteries of lamination, cell piece and backboard successively, setting fluid sealant in mounting groove, it is provided with the first encapsulated layer between glass used for solar batteries and cell piece, it is provided with the second encapsulated layer, the material of described first encapsulated layer and the second encapsulated layer is identical between described cell piece and backboard;Described encapsulated layer includes the first tack coat and second tack coat of barrier layer and barrier layer both sides, described barrier layer is the polyolefin barrier layer containing ethylene-alpha-olefin polymer, described tack coat is ethylene-vinyl acetate copolymer, and described cell piece is back contact solar cell.The barrier layer of the present invention can stop aqueous vapor from entering into inside solar module by backboard;This structure can also slow down the migration velocity of sodium ion;Efficiently solve the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment in terms of two, improve the service life of solar module simultaneously.

Description

A kind of solar module of anti-PID effect
Technical field
The present invention relates to technical field of solar batteries, the solar module of more particularly, to a kind of anti-PID effect.
Background technology
All there is " potential inducing decay " PID problem in photovoltaic plant both domestic and external at present, becomes assembly factory and meets with complaint very Technical barrier to reparation of returning goods.Some power station actual motions show:Photovoltaic module uses for a long time under high pressure hygrothermal environment, water Gas is entered in assembly by backboard, leads to the alkali that now widely used EVA hydrolysis is produced acetic acid and separated out with glass surface Reaction produces the sodium ion that can move freely, then a large amount of sodium ion move to battery surface in the presence of electric field so that Cell piece surface passivation effect deteriorates, and can form loop electric leakage between glass, encapsulating material, cell piece, backboard and module frame Electric current, leads to the power of photovoltaic module significantly to be decayed, i.e. PID phenomenon.
Content of the invention
The technical problem to be solved is the defect overcoming prior art, provides a kind of sun of anti-PID effect Energy battery component, the barrier layer in the particularly first and second encapsulating materials can stop aqueous vapor from entering into solar energy by backboard Inside battery component;This structure can also slow down the migration velocity of sodium ion;Efficiently solve assembly in damp and hot ring in terms of two The potential induction attenuation phenomenon occurring under border, improves the service life of photovoltaic module simultaneously.
In order to solve the above problems, the technical solution used in the present invention is:A kind of solar battery group of anti-PID effect Part, including module frame, is arranged in the mounting groove of module frame the glass used for solar batteries of lamination, cell piece and the back of the body successively Plate, in described mounting groove, setting fluid sealant, is provided with the first encapsulated layer between described glass used for solar batteries and cell piece, described It is provided with the second encapsulated layer, the material of described first encapsulated layer and the second encapsulated layer is identical between cell piece and backboard;Described encapsulation First tack coat of layer inclusion barrier layer and barrier layer both sides and the second tack coat, described barrier layer is containing ethene-alpha-olefin The polyolefin barrier layer of polymer, described tack coat is ethylene-vinyl acetate copolymer, and described cell piece is back contact solar Battery, described back contact solar cell includes substrate, is disposed adjacent p-type doped layer and n-type doping layer in the shady face of substrate, At least one first electrical contact, connects described p-type doped layer, and keeps spacing with described n-type doping layer;And at least one second Electrical contact, connects described n-type doping layer, and keeps spacing with described p-type doped layer;And at least one insulation adhesive band, tool There is at least one perforation, described insulation adhesive band is attached at described p-type doped layer, and wear described in described insulation adhesive band Hole manifests described first electrical contact, or is attached at described n-type doping layer, and wears described in described insulation adhesive band Hole manifests described second electrical contact.
Above-mentioned fluid sealant is filled full in mounting groove internal clearance, described fluid sealant specifically Dimethicone Copolyol Thing.
Said modules frame is aluminum alloy frame.
In a heated condition, encapsulation layer material reaches certain temperature and can melt above-mentioned encapsulated layer, and this temperature is usually 140 DEG C~150 DEG C, then etc. make photovoltaic glass and cell piece, cell piece together with bonding firm between backboard after solidification.
The assembly encapsulation structure that the present invention provides, the structure of the particularly first and second encapsulated layers, the resistance in encapsulating material Interlayer can stop aqueous vapor from entering into inside photovoltaic module by backboard.Also have sub-fraction aqueous vapor can enter into by frame In assembly, chemical reaction is then occurred to make sodium ion gather cell piece surface, this structure can also slow down moving of sodium ion Move speed.So the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment can be efficiently solved in terms of two, simultaneously Improve the service life of photovoltaic module.
Brief description
Fig. 1 is the solar module structural representation of the anti-PID effect of the present invention;
Fig. 2 is the encapsulated layer schematic diagram of the solar module of anti-PID effect of the present invention.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is described in further detail.
Referring to Fig. 1 and Fig. 2, a kind of photovoltaic module of anti-PID effect, including module frame 1, it is arranged at module frame 1 The photovoltaic glass 3 of lamination, cell piece 5 and backboard 7 successively in mounting groove, setting fluid sealant 2, described photovoltaic in described mounting groove With being provided with the first encapsulated layer 4 between glass 3 and cell piece 5, between described cell piece 5 and backboard 7, it is provided with the second encapsulated layer 6, institute State the first encapsulated layer 4 identical with the material of the second encapsulated layer 6;Described encapsulated layer includes the first of barrier layer 9 and barrier layer 9 both sides Tack coat 8 and the second tack coat 10, described barrier layer 9 is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, described viscous Knot layer is ethylene-vinyl acetate copolymer, and described cell piece is back contact solar cell, described back contact solar cell bag Include substrate, be disposed adjacent p-type doped layer and n-type doping layer, at least one first electrical contact in the shady face of substrate, connect described P-type doped layer, and keep spacing with described n-type doping layer;And at least one second electrical contact, connect described n-type doping layer, And keep spacing with described p-type doped layer;And at least one insulation adhesive band, there is at least one perforation, described insulation adhesive band It is attached at one side of described p-type doped layer, and the described perforation of described insulation adhesive band manifests described first electrical contact, or It is attached at one side of described n-type doping layer, and the described perforation of described insulation adhesive band manifests described second electrical contact.
Fluid sealant 2 is filled full in mounting groove internal clearance, described fluid sealant 2 specifically polydimethylsiloxanecopolymer copolymer.
Module frame 1 is aluminum alloy frame.
In a heated condition, encapsulation layer material reaches certain temperature and can melt encapsulated layer, then wait solidify after make photovoltaic With glass 3 and cell piece 5, cell piece 5 together with bonding firm between backboard 7.
The assembly encapsulation structure that the present invention provides, the structure of the particularly first and second encapsulating materials, in encapsulating material Barrier layer can stop aqueous vapor from entering into inside photovoltaic module by backboard.Also have sub-fraction aqueous vapor can enter by frame To in assembly, chemical reaction is then occurred to make sodium ion gather cell piece surface, this structure can also slow down sodium ion Migration velocity.So can efficiently solve, in terms of two, the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment, with When improve the service life of photovoltaic module.
Fluid sealant 2 described in structure uses polydimethylsiloxanecopolymer copolymer, and its effect is exactly to prevent aqueous vapor Enter into component internal by around frame.The effect of described encapsulated layer is in a heated condition, and encapsulating material reaches necessarily Temperature can melt, usually 140 DEG C~150 DEG C, after waiting solidification, make photovoltaic glass 3 and cell piece 5, cell piece 5 and the back of the body Between plate 7, firmly bonding is got up, and improves the service life of battery component.It is packaged in the levels all 5 of cell piece 5, one It is component internal can be entered into by backboard with barrier assembly bottom aqueous vapor, play the role of anti-PID effect;Two be can slow down by The sodium ion obtaining after there is chemical reaction moves to the speed on cell piece surface.
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 (4)

1. a kind of solar module of anti-PID effect, including module frame, is arranged in the mounting groove of module frame successively The glass used for solar batteries of lamination, cell piece and backboard, setting fluid sealant in described mounting groove it is characterised in that:Described too Sun can be provided with the first encapsulated layer between battery glass and cell piece, is provided with the second encapsulated layer between described cell piece and backboard, The material of described first encapsulated layer and the second encapsulated layer is identical;Described encapsulated layer includes barrier layer and the first of barrier layer both sides and glues Knot layer and the second tack coat, described barrier layer is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, and described tack coat is Ethylene-vinyl acetate copolymer, described cell piece is back contact solar cell, and described back contact solar cell includes base Plate, is disposed adjacent p-type doped layer and n-type doping layer, at least one first electrical contact in the shady face of substrate, connects described p-type Doped layer, and keep spacing with described n-type doping layer;And at least one second electrical contact, connect described n-type doping layer, and Keep spacing with described p-type doped layer;And at least one insulation adhesive band, there is at least one perforation, described insulation adhesive band patch Invest one side of described p-type doped layer, and the described perforation of described insulation adhesive band manifests described first electrical contact, or patch Invest one side of described n-type doping layer, and the described perforation of described insulation adhesive band manifests described second electrical contact.
2. according to claim 1 anti-PID effect solar module it is characterised in that:Described fluid sealant is filled Completely in mounting groove internal clearance, described fluid sealant specifically polydimethylsiloxanecopolymer copolymer.
3. anti-PID effect according to claim 1 or claim 2 solar module it is characterised in that:Described module frame is Aluminum alloy frame.
4. according to claim 3 anti-PID effect solar module it is characterised in that:Described encapsulated layer is in heating Under the conditions of, encapsulation layer material reaches certain temperature and can melt, then make after waiting solidification glass used for solar batteries and cell piece, Together with firm bonding between cell piece and backboard.
CN201611100175.5A 2016-12-01 2016-12-01 A kind of solar module of anti-PID effect Pending CN106469762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611100175.5A CN106469762A (en) 2016-12-01 2016-12-01 A kind of solar module of anti-PID effect

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109301012A (en) * 2018-10-09 2019-02-01 黄石金能光伏有限公司 Anti- PID photovoltaic module and its preparation process
WO2019222949A1 (en) * 2018-05-24 2019-11-28 Covestro Deutschland Ag Solar module with reduced PID effect
CN114584059A (en) * 2022-05-07 2022-06-03 深圳市华宝新能源股份有限公司 Solar module packaged by frame and packaging method
US11866519B2 (en) 2018-09-18 2024-01-09 Wool Research Organisation Of New Zealand Incorporated Cellulose-containing materials

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646978A (en) * 2013-12-09 2014-03-19 英利集团有限公司 Solar cell module
CN204067387U (en) * 2014-09-04 2014-12-31 西安普瑞新特能源有限公司 A kind of photovoltaic module of anti-PID effect
CN104716210A (en) * 2015-01-07 2015-06-17 友达光电股份有限公司 Solar cell assembly and solar cell module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646978A (en) * 2013-12-09 2014-03-19 英利集团有限公司 Solar cell module
CN204067387U (en) * 2014-09-04 2014-12-31 西安普瑞新特能源有限公司 A kind of photovoltaic module of anti-PID effect
CN104716210A (en) * 2015-01-07 2015-06-17 友达光电股份有限公司 Solar cell assembly and solar cell module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019222949A1 (en) * 2018-05-24 2019-11-28 Covestro Deutschland Ag Solar module with reduced PID effect
US11866519B2 (en) 2018-09-18 2024-01-09 Wool Research Organisation Of New Zealand Incorporated Cellulose-containing materials
CN109301012A (en) * 2018-10-09 2019-02-01 黄石金能光伏有限公司 Anti- PID photovoltaic module and its preparation process
CN114584059A (en) * 2022-05-07 2022-06-03 深圳市华宝新能源股份有限公司 Solar module packaged by frame and packaging method

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Application publication date: 20170301