CN110335912B - Photovoltaic conductive glass, solar cell double-glass assembly and preparation method thereof - Google Patents
Photovoltaic conductive glass, solar cell double-glass assembly and preparation method thereof Download PDFInfo
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- CN110335912B CN110335912B CN201910604026.XA CN201910604026A CN110335912B CN 110335912 B CN110335912 B CN 110335912B CN 201910604026 A CN201910604026 A CN 201910604026A CN 110335912 B CN110335912 B CN 110335912B
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- 239000011521 glass Substances 0.000 title claims abstract description 180
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 239000002313 adhesive film Substances 0.000 claims description 47
- 239000003292 glue Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 238000003475 lamination Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract 5
- 239000010410 layer Substances 0.000 description 107
- 238000005520 cutting process Methods 0.000 description 14
- 238000013461 design Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000009291 secondary effect Effects 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
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
- H01L31/049—Protective back sheets
-
- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical 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
- H01L31/0508—Electrical 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 the interconnection means having a particular shape
-
- 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
Abstract
The invention provides a photovoltaic conductive glass, a solar cell double-glass assembly and a preparation method thereof, wherein the photovoltaic conductive glass comprises the following components: glass, first conductive structure, second conductive structure and glued membrane layer, glued membrane layer cover be in the glass is inboard in order to the glued membrane layer with centre gripping between the glass first conductive structure with second conductive structure, on the glued membrane layer with the corresponding position department of first conductive structure is equipped with the electrode connection opening, so that the electrode at battery cluster both ends passes electrode connection opening with first conductive structure is connected and is switched on, first conductive structure includes the conducting layer, the conducting layer sets up glass with between the glued membrane layer. According to the photovoltaic conductive glass provided by the embodiment of the invention, when the solar cell double-glass assembly is assembled, the traditional metal bus bar, packaging back film and photovoltaic glass can be replaced.
Description
Technical Field
The invention relates to the technical field of photovoltaic cells, in particular to a photovoltaic conductive glass, a solar cell double-glass assembly and a preparation method thereof.
Background
The double-glass assembly of the laminated solar cell is an important development route of the high-efficiency solar cell assembly in the visible future, and the laminated solar cell assembly is characterized in that a traditional whole cell sheet is cut into a plurality of small sheets (1/4, 1/5, 1/6 and the like, which can be equally divided or not equally divided), then conductive adhesive is coated on electrodes of the cell sheets, edges of adjacent cell sheets are arranged in an up-down overlapping mode, and the cell sheets are connected together to form a cell string after the conductive adhesive is solidified. In this way, the conductive adhesive can be used for replacing the traditional metal welding strip, on one hand, the stress can be reduced by connecting the flexible conductive adhesive, on the other hand, the utilization rate of the area of the assembly can be improved by a gapless connecting mode, the efficiency of the assembly is improved, and more power output is generated in the effective unit area.
In order to avoid the risk of hot spots caused by local shielding in the operation of the assembly, a plurality of battery strings are usually combined in one assembly to form a battery string group, and bypass diodes are connected in parallel to the battery strings to solve the problems. In combination with the actual use condition of the assembly, 2-4 bypass diodes are usually connected in parallel according to the quantity of batteries in the assembly.
A conventional method for adding diodes and connecting battery strings by companies represented by Sun power in the united states is to connect metal bus bar lead wires at the ends of the battery strings, and then use the lead wires as electrodes or connect diodes.
However, disadvantages of this approach include: in order to improve the utilization rate of the area, the metal bus bar is hidden at the back of the battery as far as possible, and is usually connected to one end of the bypass diode in parallel in a jumper mode at the back of the component, that is to say, 4 to 8 jumpers are usually connected to 2 to 4 bypass diodes in parallel in the component, so that the operation complexity is increased, the fragment rate is high, and the automation degree is low.
Disclosure of Invention
Accordingly, the present invention is directed to a photovoltaic conductive glass, which omits bus bar design, realizes convenience of circuit connection in a component, and can reduce the chip rate, improve the automation degree of the component, and increase the productivity of the component.
Another object of the present invention is to provide a solar cell double-glass assembly having the above photovoltaic conductive glass.
The invention further provides a preparation method of the solar cell double-glass assembly.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an embodiment of the first aspect of the present invention, a photovoltaic conductive glass includes:
glass, wherein a through hole is formed in the glass;
the first conductive structures are arranged at two ends of the inner side of the glass and extend transversely along the glass, and the first conductive structures are used for being connected and conducted with electrodes at two ends of the battery string;
the second conductive structure is arranged on the inner side of the glass and extends vertically along the glass, one end of the second conductive structure is communicated with the first conductive structure, and the other end of the second conductive structure penetrates through the through hole and extends to the other side of the glass; and
the adhesive film layer covers the inner side of the glass so as to clamp the first conductive structure and the second conductive structure between the adhesive film layer and the glass, an electrode connecting opening is arranged at a position corresponding to the first conductive structure on the adhesive film layer, so that electrodes at two ends of the battery string pass through the electrode connecting opening to be connected and conducted with the first conductive structure,
the first conductive structure includes a conductive layer disposed directly on the glass.
Further, the first conductive structure further comprises an insulating layer, and the insulating layer is arranged between the conductive layer and the adhesive film layer.
Further, the electrode connection openings are integrally or discontinuously arranged, and the electrode connection openings extend downwards to the conductive layer.
Further, the second conductive structure is sequentially laminated with a conductive layer and an insulating layer from the surface of the glass towards the adhesive film layer, the conductive layer and the insulating layer of the second conductive structure are respectively connected with the conductive layer and the insulating layer of the first conductive structure in one-to-one correspondence, the other end of the second conductive structure is provided with an output electrode connected and conducted with the conductive layer, and the output electrode penetrates through the through hole and extends to the other side of the glass.
Further, the output electrode is connected to the conductive layer through a metal electrode connection unit.
Further, the conductive layer is formed on the glass by a plating method.
Further, a third conductive structure is further arranged between the adhesive film layer and the glass, the third conductive structure is located in the middle of the inner side of the glass and extends transversely along the glass, the third conductive structure is sequentially laminated with conductive layers and insulating layers which are respectively connected with the conductive layers and the insulating layers of the first conductive structure in one-to-one correspondence from inside to outside on the surface of the glass, two rows of electrode connection openings are also arranged at positions of the adhesive film layer corresponding to two side edges of the third conductive structure in the vertical direction, each row of electrode connection openings comprises an integral or intermittent multiple electrode connection openings which are arranged at intervals, and each electrode connection opening extends downwards to the conductive layer.
Further, grooves are formed in positions, corresponding to the first conductive structure, the second conductive structure and the third conductive structure, on the glass, and the first conductive structure, the second conductive structure and the third conductive structure are paved in the grooves respectively.
According to the solar cell dual-glass assembly, a glass cover plate, an encapsulation adhesive film, a cell string and any one of the photovoltaic conductive glass are sequentially arranged from bottom to top, wherein electrodes at two ends of the cell string are connected and conducted with a first conductive structure in the photovoltaic conductive glass.
The preparation method of the solar cell double-glass assembly according to the embodiment of the third aspect of the invention comprises the following steps:
step S1, providing a battery string, wherein two ends of the battery string are respectively provided with electrodes;
step S2, providing a photovoltaic conductive glass as described in any one of the above;
step S3, spraying conductive glue on any one of the electrode of the battery string and/or the electrode connection opening of the photovoltaic conductive glass;
step S4, paving a glass cover plate, a packaging adhesive film, the battery strings and the photovoltaic conductive glass in sequence from bottom to top, and enabling the electrodes and the electrode connection openings to form conductive connection in a one-to-one correspondence manner;
and S5, connecting a junction box between output electrodes of the photovoltaic conductive glass after EL test and lamination treatment to obtain the solar cell module.
The technical scheme of the invention has at least one of the following beneficial effects:
according to the photovoltaic conductive glass provided by the embodiment of the invention, when the solar cell double-glass assembly is assembled, the traditional metal bus bar, packaging back film and photovoltaic glass can be replaced. That is, after the solar cell dual-glass assembly is assembled to arrange the cell strings in a typesetting manner, the photovoltaic conductive glass is directly placed on the cell strings, the electrodes of the photovoltaic conductive glass and the cell strings are connected and conducted according to the corresponding design by utilizing the electrode connection openings on the photovoltaic conductive glass, no welding operation is needed on the back of the last cell of the cell strings, and meanwhile, as the glue film layer is arranged on the photovoltaic conductive glass, the operations of packaging glue films on the back of the cover, various insulating strips, cover backboard and the like are omitted, so that the fragmentation rate is greatly reduced; and provides the possibility for a fully automated implementation.
Drawings
Fig. 1 is an exploded view of a solar cell module according to embodiment 1 of the present invention;
fig. 2 is a schematic view of the battery sheet of embodiment 1 according to the present invention before and after cutting, wherein (a): front side a before dicing, (b): front a back side, (c): front after dicing a, (d): the back of the cut a;
fig. 3 is a schematic diagram of a series connection of battery cells in embodiment 1 according to the present invention;
fig. 4 is a circuit schematic of the solar cell module in embodiment 1 according to the present invention;
FIG. 5 is a schematic view of a photovoltaic conductive glass corresponding to the circuit design of FIG. 4;
FIG. 6 is an enlarged view of the portion shown in FIG. 5I;
FIG. 7 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 6;
fig. 8 is an enlarged view of II in fig. 5;
FIG. 9 is a schematic view of the cross-sectional structure in the direction A-A of FIG. 8;
FIG. 10 is an enlarged view of the portion III of FIG. 5;
FIG. 11 is a schematic view of the cross-sectional structure in the direction B-B in FIG. 10;
fig. 12 is a circuit schematic of a solar cell module in embodiment 2 according to the present invention;
FIG. 13 is a schematic view of a photovoltaic conductive glass corresponding to the circuit design of FIG. 12;
fig. 14 is a schematic view before and after cutting of a full sheet of a battery in embodiment 3 according to the present invention, wherein (a): front side a' before cutting, (b): front a' back side, (c): a' front side after dicing, (d): cutting the back of the a' after slicing;
fig. 15 is a schematic diagram of the series connection of the battery strings in embodiment 3 according to the present invention;
FIG. 16 is a schematic view of a photovoltaic conductive glass in example 3 according to the present invention;
FIG. 17 is an enlarged view of I' of FIG. 16;
FIG. 18 is a schematic view of the cross-sectional structure in the direction A-A of FIG. 17;
fig. 19 is a schematic view showing a sectional structure in the B-B direction in fig. 17.
Reference numerals:
101. a glass cover plate; 201 packaging an adhesive film; 301 battery strings; 401 photovoltaic conductive glass;
1 glass; 2 a first conductive structure; 3 a second conductive structure; 100 a third conductive structure; 4, an adhesive film layer; 5, outputting an electrode; 6, sandwiching a glue film layer; 7 a conductive layer; 8 an insulating layer; 9 electrode connection openings; 9' electrode connection openings of the photovoltaic conductive glass according to example 3;
10 front main grid of battery cell a in embodiment 1 according to the present invention; 11 a back main grid of a battery cell a according to embodiment 1 of the present invention; 12 electrode lead-out connectors;
13. the front main grid of the battery piece a' in the embodiment 3 of the invention; 14 a back main grid of the battery piece a' in embodiment 3 of the present invention, the back side of which is close to the edge; 15 the back surface of the battery piece a' in embodiment 3 according to the present invention is close to the back surface main grid at the intermediate position.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In the present specification, for convenience of description, the "battery string" and the "battery string group" are collectively referred to as "battery string".
A solar cell module according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the solar cell module according to the embodiment of the present invention includes, in order from a light receiving surface to a backlight surface, a glass cover plate 101, an encapsulation adhesive film 201, a cell string 301, and a photovoltaic conductive glass 401.
The photovoltaic conductive glass 401 is glass with a conductive function, and a circuit structure of the photovoltaic conductive glass 401 matched with the photovoltaic conductive glass 301 can be correspondingly designed according to an arrangement mode of the battery strings 301 and a connection mode of the battery strings and the bypass diode, so that the battery strings 301 are communicated with the conductive structure on the photovoltaic conductive glass 401 and are connected into the bypass diode.
The photovoltaic conductive glass 401 according to the embodiment of the present invention, as shown in fig. 5 to 11, includes: glass 1, first conductive structure 2, second conductive structure 3, and adhesive film layer 4.
Here, the glass 1 is provided with a through hole (not shown).
The first conductive structures 2 are disposed at both ends of the inner side (i.e., the side near the battery string 301) of the glass 1 and extend laterally (left and right directions as shown in fig. 5) along the glass 1. The first conductive structure 2 is used to connect and conduct with electrodes (e.g., the back main gate 11 in embodiment 1 shown in fig. 2) at both ends of the battery string 301.
The second conductive structure 3 is provided inside the glass 1 and extends vertically (up and down as shown in fig. 5) along the glass 1. Wherein one end of the second conductive structure 3 is in communication with the first conductive structure 2 and the other end passes through the through hole and extends to the other side of the glass 1.
The adhesive film layer 4 covers the inner side of the glass 1 to clamp the first conductive structure 2 and the second conductive structure 3 between the adhesive film layer 4 and the glass 1. Electrode connection openings 9 are formed in the adhesive film layer 4 at positions corresponding to the first conductive structures 2, so that electrodes at two ends of the battery strings 301 pass through the electrode connection openings 9 to be connected and conducted with the first conductive structures 2. The main function of the adhesive film layer 4 is to bond the photovoltaic conductive glass 401 and a battery string described later. In addition, the secondary effect is to clamp the first conductive structure 2 and the second conductive structure 3 together with the glass 1.
As shown in fig. 5-7, the first conductive structure 2 includes a conductive layer 7 disposed directly over the glass 1, that is, the conductive layer 7 is disposed between the glass 1 and the adhesive film layer 4.
According to the photovoltaic conductive glass 401 of the embodiment of the present invention, the first conductive structure 2 is provided to replace the conventional metal bus bar, so that connection and conduction between the photovoltaic conductive glass 401 and the battery string 301 can be directly realized, and further, by providing the second conductive structure 3, the electric energy from the battery string 301 collected by the first conductive structure 2 is directly output to the outer side of the glass 1, and no welding operation is required on the back of the last battery of the battery string 301; further, since the photovoltaic conductive glass 401 is provided with the adhesive film layer 4, operations of covering the back surface packaging adhesive film, various insulating strips, covering the back plate and the like are omitted, and the fragment rate is greatly reduced; and provides the possibility for a fully automated implementation.
According to some embodiments of the present invention, further, the first conductive structure 2 may further comprise an insulating layer 8, the insulating layer 8 being disposed between the conductive layer 7 and the adhesive film layer 4. The insulating layer 8 serves to block the possibility of electrical conduction between the conductive layer 7 and the glue film layer 4, so that the first conductive structure 2 can be more stable and reliable.
The electrode connection openings 9 may be a continuous integral type (as shown in fig. 16-17) or a plurality of electrode connection openings (as shown in fig. 5-7) arranged intermittently, and the electrode connection openings 9 extend downward to the conductive layer 7.
There is no limitation regarding the form of the electrode connection opening 9, which is disposed correspondingly to the rear electrode of the battery string 301 to be fitted. For example, in embodiment 1, as shown in fig. 2, the back electrodes on the battery slices in the battery string 301 are discontinuous line-segment-shaped back main grids 11, and accordingly the electrode connection openings 9 in the photovoltaic conductive glass 401 are also formed in a plurality of intermittent arrangements to be connected with the back main grids 11 one by one, respectively; when the back main grid of the battery sheet is a continuous straight line, or even in the case of a back main grid of a discontinuous line segment shape, the electrode connection opening 9 may be designed as a continuous integral body (as shown in fig. 16).
According to some embodiments of the present invention, as shown in fig. 8-9, the second conductive structure 3 is laminated with a conductive layer 7 and an insulating layer 8 in order from the surface of the glass 1 toward the adhesive film layer 4. The conductive layer 7 and the insulating layer 8 of the second conductive structure 3 are respectively connected with the conductive layer 7 and the insulating layer 8 of the first conductive structure 2 in a one-to-one correspondence manner. The other end of the second conductive structure 3 (i.e. the end remote from the first conductive structure 2) is provided with a conductive layer 7 connected to the conducting output electrode 5, and the output electrode 5 passes through the through hole and extends to the other side of the glass 1. The output electrode 5 is thereby in electrical communication with the conductive layer of the first conductive structure 2 and the electrical energy collected by the first conductive structure is output via the output electrode 5, which is simple and reliable.
In addition, as a method for setting the first conductive structure 2 and the second conductive structure 3, the method may be implemented by forming the conductive layer 7 on the glass 1 according to a designed layout by a plating method, a CVD method, or the like, and then coating the insulating layer 8 thereon, in other words, the setting of the adhesive film layer 6 in the first conductive structure 2 and the conductive layer 7 and the insulating layer 8 in the second conductive structure 3 may be completed through the same step.
Further, the output electrode 5 in the second conductive structure 3 is connected to the conductive layer 7 through the metal electrode connection unit 51.
According to some embodiments of the present invention, a third conductive structure 100 is further disposed between the adhesive film layer 4 and the glass 1, and the third conductive structure 100 is located at the inner middle of the glass and extends laterally along the glass 1. Similarly, the third conductive structure 100 is formed by stacking, from inside to outside, the conductive layer 7 and the insulating layer 8, which are connected to the conductive layer 7 and the insulating layer 8 of the first conductive structure 2, respectively, in order from the surface of the glass 1. Wherein, two rows of electrode connection openings 9 are also arranged at positions of the glue film layer 4 corresponding to two side edges of the third conductive structure 100 in the vertical direction, each row comprises a plurality of electrode connection openings 9 which are integrally or discontinuously arranged at intervals, and the electrode connection openings 9 extend downwards to the conductive layer 7.
That is, when the solar cell dual-glass assembly includes a plurality of cell strings 301 and the plurality of cell strings 301 are arranged in a plurality of rows, correspondingly, a plurality of rows of third conductive structures 100 may be correspondingly disposed in the middle of the photovoltaic conductive glass 401 in the lateral direction so as to correspond to the cell strings 301 one by one, so that electrodes at both ends of the cell strings 301 are electrically connected to the electrode connection openings 9 one by one.
In order to keep the adhesive film layer 4 flat as a whole, grooves may be respectively formed in positions of the glass 1 corresponding to the first conductive structure 2, the second conductive structure 3 and the third conductive structure 100, and the first conductive structure 2, the second conductive structure 3 and the third conductive structure 100 may be respectively laid in the grooves.
According to the preparation method of the solar cell module, the photovoltaic conductive glass 401 is used, and mainly comprises the following steps:
step S1, a battery string 301 is provided. The battery string 301 has electrodes at both ends thereof.
Step S2, providing the photovoltaic conductive glass 401.
Step S3, spraying conductive glue on any one of the electrodes of the battery string 301 and/or the electrode connection openings 9 of the photovoltaic conductive glass 401;
step S4, laying the glass cover plate 101, the packaging adhesive film 201, the battery strings 301 and the conductive backboard in sequence from bottom to top, and enabling the electrodes and the electrode connection openings 9 to form conductive connection in a one-to-one correspondence manner;
and S5, connecting a junction box between output electrodes 5 of the photovoltaic conductive glass 401 after EL test and lamination treatment, and obtaining the solar cell module.
According to the preparation method of the invention, by using the photovoltaic conductive glass 401 according to the invention, the operations of a cover back packaging adhesive film, various insulating strips, a cover back plate and the like are omitted, and the fragment rate is greatly reduced; and provides the possibility for a fully automated implementation.
The present invention will be further described in detail with reference to the following examples.
Examples
Fig. 1 is a schematic structural view of a solar cell module in embodiment 1 of the present invention.
As shown in fig. 1, the stacked solar cell module provided in this embodiment includes, in order from bottom to top, a glass cover plate 101, an encapsulation adhesive film 201, a cell string 301, and a photovoltaic conductive glass 401.
Each cell string 301 is formed by connecting a plurality of cell pieces a, and the front electrodes of the first cells of the cell string 301 are connected with electrode lead connectors, wherein the polarities of the front electrodes of the plurality of cell pieces a are consistent, and the polarities of the back electrodes of the plurality of cell pieces a are consistent.
In this embodiment, as shown in fig. 4, three rows of battery strings 301 are arranged, and each row of battery strings 301 is connected with a bypass diode.
Accordingly, as shown in fig. 5 to 7, the photovoltaic conductive glass 401 includes: the glass 1 and the adhesive film layer 4 sandwich the first conductive structure 2, the second conductive structure 3, and the third conductive structure 100 between the glass 1 and the adhesive film layer 4.
The first conductive structures 2 are disposed at both ends of the inner side of the glass 1 and extend in the glass lateral direction 1.
The second conductive structure 3 is disposed on the inner side of the glass 1 and extends vertically along the glass 1, one end of the second conductive structure 3 is in communication with the first conductive structure 2, and the other end of the second conductive structure passes through the through hole and extends to the other side of the glass 1.
The third conductive structure 100 is located in the middle of the inner side of the glass and extends laterally along the glass 1.
The adhesive film layer 4 covers the inner side of the glass 1 to clamp the first conductive structure 2 and the second conductive structure 3 between the adhesive film layer 4 and the glass 1, and an electrode connection opening 9 is arranged at a position on the adhesive film layer 4 corresponding to the first conductive structure 2, so that electrodes at two ends of the battery string 301 pass through the electrode connection opening 9 to be connected and conducted with the first conductive structure.
As shown in fig. 5-9, each of the first conductive structure 2 and the second conductive structure 3 includes a conductive layer 7 and an insulating layer 8, wherein the conductive layer 7 is deposited on the glass 1 by CVD, and the conductive layer 7 is connected to the adhesive film layer 4 through the insulating layer 8. The adhesive film layer 4 is provided with electrode connection openings 9 penetrating through the insulating layer 8 to the conductive layer 7 so as to be connected with the electrodes of the battery string 301.
As shown in fig. 9, the second conductive structure 3 is provided with an output electrode 5, the output electrode 5 is electrically connected with the conductive layer 7 through a metal electrode connection unit 51, and the metal electrode 5 is used for connecting an electrode lead-out wire of the solar cell dual-glass assembly and a diode.
Similarly, as shown in fig. 10 and 11, the third conductive structure 100 is formed by sequentially stacking, from the inside to the outside, the conductive layer 7 and the insulating layer 8, which are respectively connected to the conductive layer 7 and the insulating layer 8 of the first conductive structure 2, one by one. Wherein, two rows of electrode connection openings 9 are also arranged at positions of the glue film layer 4 corresponding to two side edges of the third conductive structure 100 in the vertical direction, each row comprises a plurality of electrode connection openings 9 which are integrally or discontinuously arranged at intervals, and the electrode connection openings 9 extend downwards to the conductive layer 7.
By the design, a bus belt welded with the electrodes of the battery strings can be arranged on the battery strings 301, so that the production efficiency can be improved at the end of the component, the fragment rate in the production process of the component can be reduced, and meanwhile, the power generation efficiency per unit area of the component can be improved on the basis of ensuring the performance of the component.
As shown in fig. 2, the battery piece a is cut from the whole battery a, and the cut battery pieces a have the same structure.
The electrode lead-out connection 12, to which the front electrode of the first cell a of each cell string is connected, is then connected in series with the subsequent plurality of cells a to form a cell string. The electrode lead-out connector 12 is made of flexible conductive material, and the upper surface of the electrode lead-out connector 12 can be set to be corresponding color according to the requirement, such as white for increasing reflectivity or color consistent with the battery piece, and finally an attractive assembly is formed. The realization of the upper surface color may be realized by adhering the colored material layer to the flexible conductive material layer by means of an adhesive layer (that is, the electrode lead-out connection 12 is constituted by the flexible conductive material layer, the adhesive layer, and the colored material layer (outermost layer)); it is also possible to directly apply a layer of colored material on the flexible conductive material (that is, the electrode lead-out connection 12 is constituted by the flexible conductive material layer and the colored material layer (outermost layer)).
The plurality of battery strings 301 are connected in series such that the front electrode of a battery cell a is covered on the back electrode of an adjacent battery cell a, and a conductive medium is disposed between the covered front electrode and back electrode.
In this embodiment, a p-type crystalline silicon cell is taken as an example, and the front electrode of the cell a is a negative electrode, and the back electrode is a discontinuous positive electrode. The current difference of the battery pieces a with the same specification is within 2%.
As shown in fig. 2, the front and back sides of the whole battery a before cutting the battery a are respectively provided with a main grid, the whole battery a is cut at a position close to the reserved position of the main grid, the cutting depth reaches 40% -60% of the thickness of the battery a, then the conductive adhesive is watermarked on the main grid electrode on the back side of the battery Ade by a printer, the battery is divided into a plurality of battery pieces a by a dividing device, and the main grids are distributed on the long sides of the battery pieces a and are mutually perpendicular to the short sides of the battery pieces a.
As shown in fig. 3, when the cut battery pieces a are interconnected, the negative electrode (i.e., the front electrode) of the first battery piece a of each battery string is connected to the electrode lead-out connector 12, the battery pieces a are interconnected in a lamination manner, wherein the front main grid 10 of one battery piece a is overlapped on the back main grid 11 of the adjacent battery piece a, and a conductive medium is arranged at the contact position of the front main grid 10 and the back main grid 11.
As shown in fig. 4, after the battery pieces a are connected in series to a certain number (1-24), a plurality of battery strings 301 are arranged according to the design, and the arrangement mode can be designed according to the battery condition.
The electrode connection opening 9 on the inner side of the photovoltaic conductive glass 401 is provided with a conductive medium (such as conductive adhesive) and then is placed on the battery strings 301 which are correspondingly designed and arranged, and the electrode connection opening 9 is connected and conducted with the electrodes of the battery strings 301, so that the photovoltaic conductive glass 401 and the battery strings 301 form conductive communication.
Specifically, the preparation method of the solar cell module comprises the following steps:
in this embodiment, the photovoltaic conductive glass 401 is used to make a component, after the whole battery a is cut, the laminated mode is used to form strings by series welding, the plurality of battery strings 301 do not need to be connected, the photovoltaic conductive glass 401 is arranged on the battery strings 301 according to design arrangement, the first conductive structure 2 included in the photovoltaic conductive glass 401 is connected with the battery strings 301 to form a mutually conductive circuit, and finally the output electrode 5 of the second conductive structure 3 is connected with a junction box to make the component.
The specific process is as follows:
and selecting the whole battery A, using a laser to incompletely cut the A at the position, close to the reserved position of the main grid electrode, of the back of the A, wherein the cutting depth reaches 40% -60% of the thickness of the A, then using a printer to watermark conductive adhesive at the position of the main grid 11 of the back of the whole battery A, and using a slicing device to divide the whole battery A into a plurality of battery slices a with the size of 1/5. In fig. 2, (a), (b), (c), and (d) are schematic diagrams of the battery piece before and after cutting, wherein (a) is the front side of the battery piece before cutting, (b) is the back side of the battery piece before cutting, (c) is the front side of the battery piece after slicing, and (d) is the back side of the battery piece after slicing.
Manufacturing of the battery string 301: selecting an electrode lead-out connecting piece 12, coating conductive glue on one side of the electrode lead-out connecting piece 12, selecting a piece of battery piece a, checking the appearance of a, overlapping the front main grid 10 of a and one side of the electrode lead-out connecting piece 12 coated with the conductive glue to form conductive connection, then selecting a second piece of battery piece a, checking the appearance of the second piece of battery piece a, overlapping the front main grid 10 of the second piece of battery piece a and the back main grid 11 of the first piece of battery piece a, connecting the 3-24 pieces of battery pieces a according to the same method, heating and curing to manufacture a battery string 301, and finishing the whole string welding process in an automatic string welding machine.
The plurality of battery strings 301 are arranged and placed according to a certain circuit structure mode, then conductive glue is coated on the electrode connection openings 9 of the adhesive film layer 4 on the photovoltaic conductive glass 401 (without being limited to this, the first electrode and the last electrode in the battery strings 301 can be coated with the conductive glue), and then the electrode connection openings 9 are connected with the electrodes in the battery strings 301 according to corresponding designs, so that connection conduction is formed.
Fig. 6 is a circuit diagram of a solar cell module, and fig. 7 is a photovoltaic conductive glass 401 of a corresponding design.
Next, the glass cover 101, the encapsulation film (EVA or POE) 201, the battery string 301, and the photovoltaic conductive glass 401 are laid in this order from the light receiving surface to the backlight surface.
After the paving is finished, the paving is processed by an EL test and lamination post-treatment process.
Thereafter, a junction box with a diode is mounted in accordance with a circuit diagram between the output electrodes 5 of the photovoltaic conductive glass 401, and a shingled solar cell module can be fabricated.
Examples
The structure of the solar cell module provided in this embodiment is similar to that of embodiment 1, and only the difference is that, as shown in fig. 12, the solar cell module in this embodiment has a single-row arrangement of the cell strings 301, and the number of the cell sheets contained in the cell strings 301 may be 36 (far exceeding 24), and accordingly, as shown in fig. 13, the photovoltaic conductive glass 401 only has the first conductive structure 2 and the second conductive structure 3, and the third conductive structure 100 is not required. In the case where the number of the battery cells included in the battery string 301 is far more than 24, if the conventional technology is used, the breakage rate is greatly increased, and by using the photovoltaic conductive glass 401 of the present invention, not only the packaging process is simplified, but also the breakage rate is advantageously reduced.
Examples
The structure of the solar cell module provided in this embodiment is similar to that of embodiment 1, but the difference is that the present embodiment uses the cell sheets having different designs of main gate electrodes, and at the same time, the electrode connection opening 9' of the photovoltaic conductive glass 401 is a continuous integral type.
In this embodiment, two kinds of battery pieces are used, the first battery piece being battery piece a in embodiment 1 and embodiment 2, and the second battery piece being battery piece a'.
The second battery sheet and the method for manufacturing the same are first described below.
As shown in fig. 14, a second type of battery cell a ' of a different main gate electrode design is adopted in this embodiment, in which a front main gate 13 is provided on the front side, two discontinuous rear main gates (a first rear main gate 14 near the long side edge of the battery cell a ' and a second rear main gate 15 located in the middle in the short side direction, respectively) are provided on the rear side, and the second type of battery cell is cut at a predetermined position near the rear main gate 14 to form a plurality of second type of battery cells a '.
Next, as shown in fig. 16 to 19, the photovoltaic conductive glass 401 in this embodiment is formed by integrating the electrode connection openings 9' at the corresponding positions of the first conductive structure 2 and the third conductive structure 100. Specifically, the first conductive structure 2 and the third conductive structure 100 are respectively disposed in the grooves formed in the glass 1, and the first conductive structure 2 and the third conductive structure 100 respectively include the conductive layer 7, and the insulating layer 8 may be omitted because the conductive layer 7 is not in direct contact with the outermost adhesive film layer 4. Therefore, the photovoltaic conductive glass 401 according to the present embodiment is simpler to prepare, and has lower production cost and shorter preparation flow. The second conductive structure 3 is the same as that of embodiment 1, and a description thereof is omitted here.
The solar cell module of this embodiment is specifically prepared as follows:
the procedure of selecting and cutting the whole first battery a is the same as in example 1, and the description thereof is omitted.
Then, selecting the whole second battery A ', using a laser to incompletely cut the battery A ' at the position, close to the reserved position of the back main grid 14, of the back of the battery B, wherein the cutting depth reaches 40% -60% of the thickness of the battery B, then using a printer to watermark conductive glue at the position of the back main grid 14 of the battery A ', using a slicing device to divide the battery A ' into a plurality of battery pieces a ' with the size of 1/5, and using a slicing device to divide the battery pieces into (a), (B) and (d) in fig. 14, wherein (a) is a front surface of the battery piece A ' before cutting, (B) is a back surface of the battery piece A ' before cutting, (c) is a front surface of the battery piece a ' after slicing, and (d) is a back surface of the battery piece a ' after slicing.
Manufacturing a battery string: as shown in fig. 15, the electrode lead-out connector 12 is selected, conductive glue is sprayed on one side of the electrode lead-out connector 12, a piece of battery piece a is selected, the appearance of a is checked, and the front main grid 10 of a and one side of the electrode lead-out connector 12 coated with the conductive glue are overlapped with each other to form conductive connection. And selecting a second battery piece a to be checked for appearance, enabling the front main grid 10 of the second battery piece a to be overlapped with the back main grid 11 of the first battery piece a, connecting a certain number of first battery pieces a according to a connection method of the second battery piece, selecting a second battery piece a 'to be checked for appearance, enabling the front main grid 13 of the second battery piece a to be overlapped with the back main grid 11 of the adjacent first battery piece a to form conductive connection, connecting a certain number of first battery pieces a according to the same method, selecting a second battery piece a' to enable the front main grid 13 of the second battery piece a to be overlapped with the back main grid 11 of the adjacent first battery piece a, finally connecting a certain number of first battery pieces a, and manufacturing a battery string 301 after heating and curing.
Next, the plurality of battery strings 301 are arranged and placed according to a certain circuit structure, then conductive glue is coated on the electrode connection openings 9 of the adhesive film layer 4 on the photovoltaic conductive glass 401 (not limited to this, conductive glue can be coated on the front electrode and the rear electrode in the battery strings 301), and then the electrode connection openings 9 are connected with the electrodes in the battery strings 301 according to a corresponding design to form connection conduction.
Next, the glass cover 101, the encapsulation film (EVA or POE) 201, the battery string 301, and the photovoltaic conductive glass 401 are laid in this order from the light receiving surface to the backlight surface.
After the paving is finished, the paving is processed by an EL test and lamination post-treatment process.
Thereafter, a junction box with a diode is mounted in accordance with a circuit diagram between the output electrodes 5 of the photovoltaic conductive glass 401, and a shingled solar cell module can be fabricated.
In addition to the above embodiments, there may be a series of modifications, for example, the battery sheets may all be used with the second type of battery sheet a', laminated in strings, and so on, and the enumeration thereof is omitted herein.
Other structures and operations of the vehicle according to the embodiments of the present invention are understood and readily implemented by those skilled in the art, and thus will not be described in detail.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A photovoltaic conductive glass, comprising:
glass, wherein a through hole is formed in the glass;
the first conductive structures are arranged at two ends of the inner side of the glass and extend transversely along the glass, and the first conductive structures are used for being connected and conducted with electrodes at two ends of the battery string;
the second conductive structure is arranged on the inner side of the glass and extends vertically along the glass, one end of the second conductive structure is communicated with the first conductive structure, and the other end of the second conductive structure penetrates through the through hole and extends to the other side of the glass; and
the adhesive film layer covers the inner side of the glass to clamp the first conductive structure and the second conductive structure between the adhesive film layer and the glass, the adhesive film layer is used for bonding the glass and the battery string, an electrode connection opening is arranged at a position corresponding to the first conductive structure on the adhesive film layer, so that electrodes at two ends of the battery string pass through the electrode connection opening to be connected and conducted with the first conductive structure,
the first conductive structure includes a conductive layer disposed directly on the glass;
the second conductive structure is provided with a conductive layer and an insulating layer from the surface of the glass towards the adhesive film layer in sequence, one end, far away from the first conductive structure, of the second conductive structure is provided with an output electrode which is connected and conducted with the conductive layer, the output electrode penetrates through the through hole and extends to the other side of the glass, the output electrode is electrically connected with the conductive layer through a metal electrode connecting unit, and the output electrode is used for connecting an electrode outgoing line and a diode of the solar cell dual-glass assembly.
2. The photovoltaic conductive glass of claim 1, wherein the first conductive structure further comprises an insulating layer disposed between the conductive layer and the glue film layer.
3. The photovoltaic conductive glass of claim 1, wherein the electrode connection opening is a plurality of integrally or intermittently arranged, and the electrode connection opening extends down to the conductive layer.
4. The photovoltaic conductive glass of claim 2, wherein the conductive layer and insulating layer of the second conductive structure are connected in one-to-one correspondence with the conductive layer and insulating layer of the first conductive structure, respectively.
5. The photovoltaic conductive glass according to claim 4, wherein the output electrode is connected to the conductive layer through a metal electrode connection unit.
6. The photovoltaic conductive glass of claim 1, wherein the conductive layer is formed on the glass by a plating process.
7. A photovoltaic conductive glass according to claim 3, wherein a third conductive structure is further arranged between the adhesive film layer and the glass, the third conductive structure is located in the middle of the inner side of the glass and extends transversely along the glass, the third conductive structure is sequentially laminated with a conductive layer and an insulating layer which are respectively connected with the conductive layer and the insulating layer of the first conductive structure in a one-to-one correspondence manner from inside to outside, two rows of electrode connection openings are also arranged at positions of the adhesive film layer corresponding to two side edges of the third conductive structure in the vertical direction, each row comprises a plurality of electrode connection openings which are integrally or discontinuously arranged at intervals, and the electrode connection openings extend downwards to the conductive layer.
8. The photovoltaic conductive glass according to claim 7, wherein grooves are respectively provided on the glass at positions corresponding to the first, second and third conductive structures, and the first, second and third conductive structures are respectively laid in the grooves.
9. A solar cell dual-glass assembly, which is characterized by sequentially comprising a glass cover plate, a packaging adhesive film, a cell string and the photovoltaic conductive glass according to any one of claims 1 to 8 from bottom to top, wherein electrodes at two ends of the cell string are connected and conducted with a first conductive structure in the photovoltaic conductive glass.
10. The preparation method of the solar cell double-glass assembly is characterized by comprising the following steps of:
step S1, providing a battery string, wherein two ends of the battery string are respectively provided with electrodes;
step S2, providing a photovoltaic conductive glass according to any one of claims 1 to 8;
step S3, spraying conductive glue on any one of the electrode of the battery string and/or the electrode connection opening of the photovoltaic conductive glass;
step S4, paving a glass cover plate, a packaging adhesive film, the battery strings and the photovoltaic conductive glass in sequence from bottom to top, and enabling the electrodes and the electrode connection openings to form conductive connection in a one-to-one correspondence manner;
and S5, connecting a junction box between output electrodes of the photovoltaic conductive glass after EL test and lamination treatment to obtain the solar cell module.
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| CN111613683B (en) * | 2020-06-29 | 2021-08-20 | 珠海格力电器股份有限公司 | Photovoltaic module |
| CN112635604B (en) * | 2020-12-22 | 2022-11-15 | 深圳市百柔新材料技术有限公司 | Photovoltaic glass and preparation method thereof, photovoltaic module and preparation method thereof |
| CN113410313A (en) * | 2021-05-10 | 2021-09-17 | 深圳市百柔新材料技术有限公司 | Conductive circuit film, preparation method thereof and photovoltaic cell |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0500451A1 (en) * | 1991-02-21 | 1992-08-26 | SOLEMS S.A. Société dite: | Photovoltaic device and solar module with partial transparency, and fabrication method |
| CN103000730A (en) * | 2012-12-10 | 2013-03-27 | 江苏金瑞晨新材料有限公司 | Back contact type solar cell module |
| CN103346181A (en) * | 2013-05-30 | 2013-10-09 | 南京日托光伏科技有限公司 | Solar cell module without welding strips and preparation method thereof |
| CN103474493A (en) * | 2012-06-05 | 2013-12-25 | 爱博福欧有限公司 | Encapsulating layer adapted to be applied to back-sheets for photovoltaic modules including back-contact cells |
| CN104465837A (en) * | 2014-11-25 | 2015-03-25 | 英利集团有限公司 | Photovoltaic back plate, manufacturing method of photovoltaic back plate and photovoltaic module |
| CN108461551A (en) * | 2018-03-26 | 2018-08-28 | 天合光能股份有限公司 | A kind of solar battery sheet and lamination dual-glass solar cell assembly |
| CN108538944A (en) * | 2018-03-09 | 2018-09-14 | 天合光能股份有限公司 | A kind of photovoltaic conductive backboard and photovoltaic cell component |
| CN108735831A (en) * | 2018-07-27 | 2018-11-02 | 英利能源（中国）有限公司 | Solar cell, solar cell string and imbrication photovoltaic module |
-
2019
- 2019-07-05 CN CN201910604026.XA patent/CN110335912B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0500451A1 (en) * | 1991-02-21 | 1992-08-26 | SOLEMS S.A. Société dite: | Photovoltaic device and solar module with partial transparency, and fabrication method |
| CN103474493A (en) * | 2012-06-05 | 2013-12-25 | 爱博福欧有限公司 | Encapsulating layer adapted to be applied to back-sheets for photovoltaic modules including back-contact cells |
| CN103000730A (en) * | 2012-12-10 | 2013-03-27 | 江苏金瑞晨新材料有限公司 | Back contact type solar cell module |
| CN103346181A (en) * | 2013-05-30 | 2013-10-09 | 南京日托光伏科技有限公司 | Solar cell module without welding strips and preparation method thereof |
| CN104465837A (en) * | 2014-11-25 | 2015-03-25 | 英利集团有限公司 | Photovoltaic back plate, manufacturing method of photovoltaic back plate and photovoltaic module |
| CN108538944A (en) * | 2018-03-09 | 2018-09-14 | 天合光能股份有限公司 | A kind of photovoltaic conductive backboard and photovoltaic cell component |
| CN108461551A (en) * | 2018-03-26 | 2018-08-28 | 天合光能股份有限公司 | A kind of solar battery sheet and lamination dual-glass solar cell assembly |
| CN108735831A (en) * | 2018-07-27 | 2018-11-02 | 英利能源（中国）有限公司 | Solar cell, solar cell string and imbrication photovoltaic module |
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