CN106711263A - Solar cell module and manufacturing method thereof - Google Patents

Solar cell module and manufacturing method thereof Download PDF

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Publication number
CN106711263A
CN106711263A CN201611109906.2A CN201611109906A CN106711263A CN 106711263 A CN106711263 A CN 106711263A CN 201611109906 A CN201611109906 A CN 201611109906A CN 106711263 A CN106711263 A CN 106711263A
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China
Prior art keywords
solar cell
layer
cell module
solar battery
adhesive tape
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Pending
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CN201611109906.2A
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Chinese (zh)
Inventor
庄爱芹
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Individual
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Individual
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Priority to CN201611109906.2A priority Critical patent/CN106711263A/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
    • H01L31/05Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0512Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
    • 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
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • H01L31/1876Particular processes or apparatus for batch treatment of the devices
    • H01L31/188Apparatus specially adapted for automatic interconnection of solar cells in a module
    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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

Abstract

The invention discloses a solar cell module, which comprises tempered glass, an EVA layer and a back plate which are arranged in sequence from top to bottom, wherein a plurality of solar cell panels are arranged in the EVA layer in a packaged manner, the adjacent solar cell panels are connected by conductive tape, two ends of each piece of conductive tape are connected to front and back surfaces of two adjacent solar cell panels separately, each solar cell panel comprises a metal back electrode, P-type crystalline silicon, an N-type diffusion layer, a functional layer and a metal gate electrode which are laminated in sequence, and the conductive tape is combined with main grid lines on the front surface of the cell panels and the back electrodes in hot-pressing manner at low temperature. The solar cell module replaces the conventional tin-coated copper belt with the conductive tape, reduces the temperature of the cell panel in welding, greatly reduces the bending phenomena of the cell panels by using the good flexibility of the conductive tape, reduces possibility of the occurrence of hidden cracks and debris, and improves the stability and reliability of the module.

Description

A kind of solar cell module and preparation method
Technical field
The present invention relates to solar energy materials and devices field, and in particular to a kind of solar cell module and its making side Method.
Background technology
In recent years, solar energy is of increased attention as the renewable new energy of a kind of cleaning, green, and it should With also widely.In the various applications of solar energy, one application of currently the most important ones is exactly photovoltaic generation, with various countries pair The attention of solar power generation, the shared ratio in whole electricity generation system of photovoltaic generation is increasing.
The most basic unit of solar energy power generating is solar cell, in specific application, typically by multiple too It is positive can cell piece be packaged composition solar cell module, it is whole that each solar cell module then is coupled together into composition again The electric current output of body.Now widely used solar cell module is mainly monocrystalline silicon battery component and polycrystal silicon cell group Part, its conventional technique is:Monolithic solar cell piece is welded at high temperature by welding (applying tin copper strips), is then carried out Lamination lays, and will then lay part and be put into laminating machine and is laminated, and it is to complete component that aluminum alloy frame is finally installed to laminate Encapsulation.In the packaging technology of component, the welding of solar battery sheet is a very important step, due to welding material It is to apply tin copper strips, and the fusing point of tin material alloy is about between 180 DEG C~230 DEG C, in order to ensure the reliability of welding, this road technique Need to complete at high temperature.The welding temperature of conventional single-crystal silicon or polycrystalline silicon battery plate is general between 320 DEG C~380 DEG C, such Temperature can increase the deformation and bending of cell piece, cause the decay of battery piece performance.Further, since welding material is with cell piece Silicon materials thermal expansion coefficient difference used is larger, causes there is certain residual stress in the cell piece after welding, causes electricity The hidden of pond piece splits and fragment, and these factors can all influence the assembly property and reliability of final encapsulation.With present cell piece Thickness more and more thinner, cell piece is more prone to bending during high-temperature soldering, causes fragment rate higher.
The content of the invention
An object of the present invention aims to provide a kind of solar cell module, can realize at low temperature to cell piece Welding, reduce the buckling phenomenon of cell piece in welding process, reduce it is hidden split and fragment generation, improve the stabilization of component Property and reliability.
To achieve the above object, a kind of solar cell module proposed by the present invention, including arrange successively from top to bottom Safety glass, EVA layer and backboard, encapsulate in the EVA layer and lay several solar battery sheets, adjacent solar cell Conductive adhesive tape is connected between piece, the two ends of conductive adhesive tape are connected to front and the back of the body of two neighboring solar battery sheet Face, the solar battery sheet includes the metal back electrode, P-type crystal silicon, n type diffused layer, functionalization layer, the metal that stack gradually Gate electrode, wherein the functionalization layer includes SnCH3NH2BrxClyI3-x-yPerovskite photoresponsive layer and zinc oxide conductive thin film layer.
Preferably, the conductive adhesive tape is made up of metal level and two adhesive layers, the metal level is located at two bondings Between layer.
Preferably, copper or aluminium base of the metal level for high conductivity.
Preferably, the metal layer thickness is preferably 80~120 microns.
Preferably, the adhesive layer contains conducting particles, the conducting particles is the one kind in copper, silver or nickel.
Preferably, the conductive adhesive tape thickness is 100~280 microns.
Another object of the present invention is the preparation method for providing above-mentioned solar cell module, including following making Step:
(1) solar battery sheet concatenation:By conductive adhesive tape by way of hot pressing with the positive main gate line of cell piece and the back of the body Electrode is combined together, and hot pressing temperature is 220 DEG C, and hot pressing time is 5~15 seconds;
(2) lay:Material needed for component is laminated in a certain order, the order laid is successively from top to bottom: Safety glass, EVA layer, solar battery sheet, EVA layer, backboard;
(3) it is laminated:The component that will be laid is put into laminating machine, and component each several part material is bonded under the conditions of vacuum high-temperature Turn into a laminate for entirety together;
(4) frame up:The part silica gel sealing of aluminum alloy frame, laminate and bezel contact is installed to laminate, then Terminal box is installed in module backside.
The beneficial effects of the present invention are, the painting tin copper strips of prior art is replaced with conductive tape, reduce cell piece weldering Temperature when connecing, while the good pliability of conductive tape also greatly reduces the buckling phenomenon of cell piece, reduce it is hidden split and The possibility that fragment is produced, improves the stability and reliability of component.
Brief description of the drawings
Fig. 1 is the structural representation of solar cell module of the present invention;
Fig. 2 is the profile of conductive adhesive tape of the present invention;
Fig. 3 is the structural representation of solar battery sheet of the present invention.
Specific embodiment
Below, example embodiment of the invention will be described in detail with reference to accompanying drawing.In the accompanying drawings, it is same or similar Reference number represent same or analogous element from start to finish.
As shown in figs. 1 and 3, a kind of solar cell module, including the safety glass 1, EVA layer arranged successively from top to bottom 2 and backboard 5, encapsulated in the EVA layer 2 and lay several solar battery sheets 4, connect between adjacent solar battery sheet 4 Conductive adhesive tape 3 is connected to, the two ends of conductive adhesive tape 3 are connected to the front and back of two neighboring solar battery sheet 4, described Solar battery sheet 4 includes the metal back electrode 41, P-type crystal silicon 42, n type diffused layer 43, functionalization layer 44, the gold that stack gradually Category gate electrode 45, wherein the functionalization layer 44 includes SnCH3NH2BrxClyI3-x-yPerovskite photoresponsive layer and zinc oxide are conductive Film layer.Wherein the low iron safety glass of ultrawhite has high transmission rate and plays a part of to protect solar battery sheet, EVA material tool Play the role of to seal and bond, backboard permeates as the protection packaging material at the back side with ageing-resistant, corrosion-resistant, prevention steam Ability and good insulating properties.
As shown in Fig. 2 the conductive adhesive tape 3 is made up of metal level 31 and two adhesive layers 32, the metal level 31 is located at Between two adhesive layers 32.The thickness of the conductive adhesive tape 3 is preferably 100~280 microns.The metal level 31 is preferably has height The copper or aluminium base of conductance, the thickness of metal level 31 are 80~120 microns.The adhesive layer 32 contains conducting particles, described to lead Charged particle is the one kind in copper, silver or nickel.
The preparation method of above-mentioned solar cell module, it is characterised in that comprise the following steps that:
(1) solar battery sheet concatenation:By conductive adhesive tape by way of hot pressing with the positive main gate line of cell piece and the back of the body Electrode is combined together, and hot pressing temperature is 220 DEG C, and hot pressing time is 5~15 seconds;
(2) lay:Material needed for component is laminated in a certain order, the order laid is successively from top to bottom: Safety glass, EVA layer, solar battery sheet, EVA layer, backboard;
(3) it is laminated:The component that will be laid is put into laminating machine, and component each several part material is bonded under the conditions of vacuum high-temperature Turn into a laminate for entirety together;
(4) frame up:The part silica gel sealing of aluminum alloy frame, laminate and bezel contact is installed to laminate, then Terminal box is installed in module backside.
The method of the preparation of the solar battery sheet, comprises the following steps:
(1) n type diffused layer 4343 is prepared in P-type crystal silicon 42 by way of ion implanting, PN junction is formed.Inject from Son is phosphorus.
(2) ultraviolet irradiation and ozone treatment are carried out to solar cell surface, changes its surface energy;
(3) by the method for solution spin coating, the functionalization layer with photic polarity effect is prepared in solar cell surface 44, the function film includes photoresponsive layer and conductive membrane layer, and the material of photoresponsive layer is SnCH3NH2BrxClyI3-x-yCalcium titanium Ore deposit quantum dot, the material of conductive membrane layer is zinc oxide;
(4) metal back electrode 41 is formed at the back side of P-type crystal silicon 42, metal gate electrode is formed in conductive film layer surface 45。
Present invention process is simple, realizes application of the conductive tape in component package, and this improvement both ensure that cell piece The reliability of electrical connection, at the same avoid that conventional batteries piece welding manner occurs it is hidden split and fragment rate problem very high, reduce Cost, and further increase the stability and reliability of component.
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 (7)

1. a kind of solar cell module, including safety glass (1), EVA layer (2) and the backboard arranged successively from top to bottom (5), several solar battery sheets (4) are laid in encapsulation in the EVA layer (2), it is characterised in that:Adjacent solar battery sheet (4) conductive adhesive tape (3) is connected between, the two ends of conductive adhesive tape (3) are connected to two neighboring solar battery sheet (4) Front and back, the solar battery sheet (4) includes the metal back electrode (41), P-type crystal silicon (42), the N-type that stack gradually Diffusion layer (43), functionalization layer (44), metal gate electrode (45), wherein the functionalization layer (44) includes SnCH3NH2BrxClyI3-x-yPerovskite photoresponsive layer and zinc oxide conductive thin film layer.
2. solar cell module as claimed in claim 1, it is characterised in that:The conductive adhesive tape (3) is by metal level (31) With two adhesive layer (32) compositions, the metal level (31) is between two adhesive layers (32).
3. solar cell module as claimed in claim 2, it is characterised in that:The metal level (31) is copper or aluminium base.
4. solar cell module as claimed in claim 2, it is characterised in that:Metal level (31) thickness is 80~120 Micron.
5. solar cell module as claimed in claim 2, it is characterised in that:The adhesive layer (32) contains conducting particles, The conducting particles is the one kind in copper, silver or nickel.
6. solar cell module as claimed in claim 1, it is characterised in that:Conductive adhesive tape (3) thickness be 100~ 280 microns.
7. the preparation method of the solar cell module as described in claim 1 to 6 any claim, it is characterised in that bag Include following making step:
(1) solar battery sheet concatenation:By conductive adhesive tape by way of hot pressing with the positive main gate line of cell piece and back electrode It is combined together, hot pressing temperature is 220 DEG C, hot pressing time is 5~15 seconds;
(2) lay:Material needed for component is laminated in a certain order, the order laid is successively from top to bottom:Tempering Glass, EVA layer, solar battery sheet, EVA layer, backboard;
(3) it is laminated:The component that will be laid is put into laminating machine, and component each several part material is bonded together under the conditions of vacuum high-temperature As a laminate for entirety;
(4) frame up:The part silica gel sealing of aluminum alloy frame, laminate and bezel contact is installed to laminate, then in group The part back side is installed by terminal box.
CN201611109906.2A 2016-12-06 2016-12-06 Solar cell module and manufacturing method thereof Pending CN106711263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108807695A (en) * 2018-06-06 2018-11-13 北京大学 A kind of perovskite heat-seal method used for solar batteries and component
CN108987493A (en) * 2017-05-31 2018-12-11 刘庆东 solar panel
CN109452047A (en) * 2018-12-21 2019-03-12 广西武宣吉福光电科技有限公司 Easily construction intelligent photovoltaic greenhouse
CN110620549A (en) * 2018-06-19 2019-12-27 北京汉能光伏投资有限公司 Conductive connection structure, manufacturing method thereof and solar cell module
CN111162136A (en) * 2020-01-17 2020-05-15 浙江晶科能源有限公司 IBC battery pack and manufacturing method thereof
CN113471362A (en) * 2021-05-18 2021-10-01 宣城先进光伏技术有限公司 Interconnection process method of perovskite battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110300664A1 (en) * 2010-06-08 2011-12-08 Kevin Kwong-Tai Chung Solar cell interconnection, module and panel method
CN102544155A (en) * 2012-01-06 2012-07-04 南通美能得太阳能电力科技有限公司 Solar cell assembly and manufacturing method thereof
JP2013074259A (en) * 2011-09-29 2013-04-22 Yokohama Rubber Co Ltd:The Laminate
CN105655443A (en) * 2016-02-29 2016-06-08 苏州大学 Method for enhancing solar cell efficiency based on light induced field inductive effect

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110300664A1 (en) * 2010-06-08 2011-12-08 Kevin Kwong-Tai Chung Solar cell interconnection, module and panel method
JP2013074259A (en) * 2011-09-29 2013-04-22 Yokohama Rubber Co Ltd:The Laminate
CN102544155A (en) * 2012-01-06 2012-07-04 南通美能得太阳能电力科技有限公司 Solar cell assembly and manufacturing method thereof
CN105655443A (en) * 2016-02-29 2016-06-08 苏州大学 Method for enhancing solar cell efficiency based on light induced field inductive effect

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108987493A (en) * 2017-05-31 2018-12-11 刘庆东 solar panel
CN108807695A (en) * 2018-06-06 2018-11-13 北京大学 A kind of perovskite heat-seal method used for solar batteries and component
CN110620549A (en) * 2018-06-19 2019-12-27 北京汉能光伏投资有限公司 Conductive connection structure, manufacturing method thereof and solar cell module
CN109452047A (en) * 2018-12-21 2019-03-12 广西武宣吉福光电科技有限公司 Easily construction intelligent photovoltaic greenhouse
CN111162136A (en) * 2020-01-17 2020-05-15 浙江晶科能源有限公司 IBC battery pack and manufacturing method thereof
CN113471362A (en) * 2021-05-18 2021-10-01 宣城先进光伏技术有限公司 Interconnection process method of perovskite battery

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