CN111403497A - Solar cell interconnection structure - Google Patents
Solar cell interconnection structure Download PDFInfo
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- CN111403497A CN111403497A CN201811626386.1A CN201811626386A CN111403497A CN 111403497 A CN111403497 A CN 111403497A CN 201811626386 A CN201811626386 A CN 201811626386A CN 111403497 A CN111403497 A CN 111403497A
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- 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
- H01L31/02—Details
- H01L31/0224—Electrodes
-
- 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
-
- 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 application discloses a solar cell interconnection structure, which comprises at least two solar cell panels arranged in a laminated tile structure, wherein the front surface of each solar cell panel is provided with a plurality of grid lines side by side, the front surface of each solar cell panel is also provided with a plurality of conducting wires side by side, and the conducting wires are intersected with the grid lines and are in conducting connection; and the overlapping part of the two adjacent solar panels is electrically connected with the electrode on the back of the solar panel positioned above through the lead on the solar panel positioned below. According to the scheme, the internal resistance of the interconnection structure is reduced by arranging the plurality of wires, so that the loss caused by the resistance of the interconnection structure can be greatly reduced. In addition, the conducting wire can reflect sunlight which enters the conducting wire to the surface of the solar cell panel again, so that the light utilization rate of the solar cell panel is improved, and the adverse effect caused by shading of the traditional grid line electrode is reduced.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic power generation, in particular to a solar cell interconnection structure.
Background
At present, with the gradual depletion of fossil energy, solar photovoltaic cells are widely used as a new energy alternative. A solar photovoltaic cell is a device that converts solar energy into electrical energy. The solar photovoltaic cell generates carriers by utilizing a photovoltaic principle, and then the carriers are led out by using an electrode, so that available electric energy is obtained.
The interconnection of the solar photovoltaic cells is an important ring of photovoltaic solar power generation, and the technical scheme of the interconnection has important influence on the photovoltaic power generation performance. The laminated tile structure is a better scheme for realizing interconnection of solar photovoltaic cells. In the structure of the laminated tile structure, the solar photovoltaic cells are connected in an overlapped mode from head to tail (also called as lap joint), gaps among the solar photovoltaic cells in the traditional arrangement interconnection structure are greatly reduced, more solar photovoltaic cell units can be arranged in unit area, and the effective sunlight utilization rate is improved.
However, the existing solar photovoltaic cell interconnection scheme adopting the shingle structure has some disadvantages, such as: the internal resistance of the solar photovoltaic cell interconnection scheme of the existing laminated tile structure is overlarge, so that the integral electric energy output is influenced; due to the limitation of large transmission resistance of the interconnection structure, each solar cell panel (also called as a solar cell panel) needs a smaller transmission distance (that is, the solar cell panel needs to be made narrower), so if the solar cell panel of the cutting process is used, the silicon rod needs to be cut into slices and the whole solar cell panel is processed into a plurality of solar cell panels with narrow widths, the yield is reduced due to the increase of the cutting times, and the risk of hidden cracking of the solar cell panel is increased. In addition, the conventional solar cell panel generally forms a grid line electrode by screen printing of silver paste, and the method is relatively high in cost, and the printed grid electrode has a shading problem and has adverse effect on photoelectric conversion efficiency.
Disclosure of Invention
In view of the above-mentioned defect or not enough among the prior art, it is desirable to provide a solar cell interconnect structure for solving current interconnect structure internal resistance at least greatly, solar cell panel fragmentation rate and the risk of latent crack are high, adopt screen printing silver thick liquid to form the grid line electrode with high costs, have the problem of adverse effect to photoelectric conversion efficiency.
The invention provides a solar cell interconnection structure, which comprises at least two solar cell panels arranged in a laminated tile structure, wherein the front surface of each solar cell panel is provided with a plurality of grid lines side by side,
a plurality of wires are arranged on the front surface of each solar cell panel side by side and are intersected with the grid lines and are in conductive connection;
and the overlapping part of two adjacent solar panels is electrically connected with the electrode on the back of the solar panel positioned above through the lead on the solar panel positioned below.
Furthermore, the solar cell panel is a whole cell panel or a sub-cell panel formed by cutting the whole cell panel by one half, one third, one fourth, one fifth or one sixth along the direction parallel to the grid line.
Further, at least the part of the lead electrically connected with the electrode is of a flat structure.
Furthermore, a light-transmitting polymer film is laid on the front surface of each solar cell panel, and each lead is fixedly connected with the polymer film.
Further, the polymer film comprises a base layer and an adhesive layer arranged on the base layer, wherein the adhesive layer is attached to the front side of the solar cell panel.
Further, the material of the base layer and/or the adhesive layer is at least any one of cellulose acetate, polyolefin, polyamide, polyphenylene ether, fluororesin, polymethyl methacrylate, polysulfone, polyester, epoxy resin, silicone resin, polyimide resin, phenol resin, polyurethane, and acrylic resin.
Further, at least a portion of each of the wires is located in the adhesive layer.
Further, the polymer film is provided with hollow patterns, and the hollow patterns are located between two adjacent wires.
Further, the outer peripheral surface of the lead is provided with a conductive layer.
Further, the material of the conducting layer is metal or alloy with the melting point of 70-180 degrees; alternatively, the first and second electrodes may be,
the material of the conductive layer is conductive resin with the softening temperature of 90-120 degrees.
Further, the material of the conductive layer comprises a simple substance or an alloy of any one of Ag, Bi, Cd, Ga, In, Pb, Sn, Ti and Zn; alternatively, the first and second electrodes may be,
the material of the conductive layer includes a conductive resin including a resin base material including any one of cellulose acetate, fluorine resin, polysulfone resin, polyester resin, polyamide resin, polyurethane resin, and polyolefin resin, and conductive particles including at least any one of gold, silver, copper, aluminum, zinc, nickel, and graphite, which are disposed in the resin base material.
Further, the width of the overlapping part of two adjacent solar panels is 0.1-3 mm.
Further, the conductive line is perpendicular to the gate line.
Further, the polymer film has a thickness of between 5 microns and 150 microns.
Further, the number of the wires arranged on the front surface of each solar cell panel is 3-100.
Furthermore, one section of grid line is arranged on one straight line or a plurality of sections of grid lines are arranged at intervals.
Further, the material of the wire comprises at least any one of copper, aluminum, silver, gold, copper-nickel alloy and copper-zinc alloy;
or the conducting wire is a copper-clad aluminum wire.
According to the scheme, the front surface of the solar cell panel is connected with the grid lines through the wires and then electrically connected with the electrodes on the back surface of the adjacent solar cell panel, and the cross-sectional area of the wires is larger than that of the silver-containing grid line electrodes of the conventional screen printing under the condition of the same width, and the cross-sectional area is relatively optimized, so that the maximum effect of current transmission can be achieved. In addition, the internal resistance of the interconnection structure is reduced by arranging the plurality of wires, so that the loss caused by the resistance of the interconnection structure can be greatly reduced. In addition, the conducting wire can reflect sunlight which enters the conducting wire to the surface of the solar cell panel again, so that the light utilization rate of the solar cell panel is improved, and the adverse effect caused by shading of the traditional grid line electrode is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a perspective view of a solar cell interconnection structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view I of a portion of FIG. 1;
FIG. 3 is a schematic view of a conductive wire bonded to a polymer film according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a hollow pattern according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a gate line structure according to an embodiment of the invention;
fig. 6 is a schematic diagram illustrating another gate line structure according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, the solar cell interconnection structure provided by the present invention includes at least two solar cell panels 1 arranged in a shingled structure, wherein fig. 1 shows 3 solar cell panels 1, the front surface of each solar cell panel 1 is provided with a plurality of grid lines 3 side by side, the plurality of grid lines 3 are, for example, but not limited to, arranged in parallel at uniform intervals, the front surface of each solar cell panel 1 is further provided with a plurality of wires 2 side by side, for example, but not limited to, the wires 2 are, arranged in parallel at uniform intervals, and the wires 2 intersect with the grid lines 3 and are electrically connected; the overlapping part 4 of two adjacent solar panels 1, the lead 2 on the solar panel 1 positioned below is electrically connected with the electrode on the back of the solar panel 1 positioned above.
The side-by-side arrangements referred to herein may be parallel or non-parallel arrangements. For example, but not limited to, the plurality of wires arranged side by side may be arranged in a flat shape or in a radial shape.
The front side refers to a side of the solar cell panel 1 facing the sun when in operation, and the back side is a side opposite to the front side.
The overlapping part 4 of two adjacent solar panels 1 is also the overlapping part of two adjacent solar panels.
The wire 2 referred to herein does not mean a wire having a perfect circle in cross section alone, but may be an ellipse or the like.
According to the scheme, the front surface of the solar cell panel 1 is connected with the grid lines 3 through the wires 2 and then is electrically connected with the electrodes on the back surface of the adjacent solar cell panel 1, and because the cross-sectional area of the wires 2 is larger than that of the silver-containing grid line electrodes of the conventional screen printing under the condition of the same width, the cross-sectional area is relatively optimized, the maximum effect of current transmission can be achieved. In addition, by arranging the plurality of wires 2, the internal resistance of the interconnection structure is reduced, so that the loss caused by the resistance of the interconnection structure can be greatly reduced. In addition, due to the reduction of the internal resistance of the interconnection structure, the solar cell panel 1 can adopt larger units, but the maximum solar cell panel 1 can be made of a whole silicon wafer, and in addition, the conducting wire 2 is adopted, so that the sunlight incident to the conducting wire 2 can be reflected to the surface of the solar cell panel 1 again, the light utilization rate of the solar cell panel 1 is improved, and the adverse effect caused by the shading of the traditional grid line electrode is reduced.
Further, the solar cell panel is a whole cell panel or a sub-cell panel formed by cutting the whole cell panel by one half, one third, one fourth, one fifth or one sixth along a direction parallel to the grid line 3.
The monolithic solar panel described herein is a monolithic solar panel made from a monolithic silicon wafer obtained by slicing a silicon rod.
Because the internal resistance of the solar cell panel 1 can be reduced after the lead 2 is arranged on the solar cell panel 1, the largest solar cell panel 1 can be an integral solar cell panel, and certainly, the sizes of one half, one third, one fourth, one fifth or one sixth of the integral solar cell panel can also be adopted, the solar cell panel 1 with larger area can be used along with the interconnection structure, in the interconnection structure with the same area, the number of the adopted solar cell panels 1 is reduced, so that the times of process connection are reduced, meanwhile, because the solar cell panel 1 with larger area can be adopted, the times of cutting the integral solar cell panel can be reduced, and further, the risks of mechanical damage, the breakage rate and hidden cracking caused by cutting are reduced.
Further, at least the portion of the lead 2 electrically connected to the electrodes has a flat structure. The flat structure is, for example, but not limited to, an oval, a rectangle, a nearly rectangle, etc. The flat structure can improve the contact area of the joint, form better contact, and is beneficial to improving the electric connection efficiency and reducing the electric loss of the joint. In addition, the gap between the two solar panels 1 can be reduced, and the pressure intensity of the two adjacent solar panels 1 at the connection part of the lead 2 and the electrode can be reduced, so that the fragment rate is reduced. And the generation of bad holes in the subsequent process of the interconnection structure is reduced.
Furthermore, a light-transmitting polymer film is laid on the front surface of each solar cell panel 1, and each lead 2 is fixedly connected with the polymer film.
During manufacturing, the lead 2 may be fixed on the transparent polymer film by hot pressing or the like. In order to make the next manufacturing step, the conductive line 2 is sufficiently contacted with the gate line 3, and a part of the arc surface of the conductive line 2 may protrude from the surface of the polymer film. And then, laying the polymer film fixed with the wires 2 on the front surface of the solar panel 1, enabling the wires 2 to protrude a part of arc surfaces of the polymer film to face the grid lines 3, carrying out hot pressing on the polymer film, enabling the polymer film to be adhered to the front surface of the solar panel 1, fixing the wires 2, and ensuring that the wires 2 are electrically connected with the grid lines 3. By adopting the mode, the laying and the alignment of the conducting wire 2 are more convenient and accurate in the manufacturing process, the process complexity is reduced, even the process steps are reduced, and the conducting wire 2 can be ensured to be fully electrically connected with the grid line 3.
Further, referring to fig. 3, the polymer film includes a base layer 7 and an adhesive layer 6 disposed on the base layer 7, and the adhesive layer 6 is attached to the front surface of the solar cell panel 1.
The polymer film adopts the composite layer structure of tie coat 6 and basic unit 7, and when processing, tie coat 6 laminates in solar cell panel 1's front, and it plays the effect of tie coat, and in addition, tie coat 6 still makes the contact of wire 2 and solar cell panel 1 become flexible contact, has reduced the broken rate. The base layer 7 is cured after hot pressing, has certain strength and can play a role in protecting the structure covered by the base layer.
Further, the material of the base layer and/or the adhesive layer is at least any one of cellulose acetate, polyolefin, polyamide, polyphenylene ether, fluororesin, polymethyl methacrylate, polysulfone, polyester, epoxy resin, silicone resin, polyimide resin, phenol resin, polyurethane, and acrylic resin.
Preferably, the material of the adhesive layer 6 may be at least one of polyolefin, polyamide, polyphenylene ether, fluororesin, polymethyl methacrylate, polysulfone, and polyester.
Preferably, the material of the base layer 7 may be at least one of epoxy resin, silicone resin, polyimide resin, phenol resin, polyurethane, and acrylic resin.
Further, at least part of each wire 2 is located on the adhesive layer 6, so that the wires 2 are pressed to the front surface of the solar cell panel 1 and contact with the grid lines 3 in the hot pressing process, and good electrical connection is realized.
Further, as shown in fig. 4, a hollow pattern 8 is disposed on the polymer film, and the hollow pattern 8 is located between two adjacent wires 2. The cut-out pattern 8 may be any shape, such as rectangular, circular, oval, etc. The hollow pattern 8 is arranged to enable light to directly penetrate through the hollow pattern 8 to irradiate the front of the solar cell panel, so that light transmittance is guaranteed, the using amount of the polymer film is reduced, and cost is reduced.
Further, the outer peripheral surface of the wire 2 is provided with a conductive layer 5. The conductive layer 5 plays a role of an adhesive or solder in the hot pressing process, so that the wire 2 and the grid line 3 are favorably and electrically connected, and the connection reliability is improved.
Further, the material of the conductive layer 5 is a metal or an alloy with a melting point of 70-180 degrees; alternatively, the first and second electrodes may be,
the material of the conductive layer 5 is a conductive resin having a softening temperature of 90 to 120 degrees. By adopting the conducting layer 5 with the temperature, lower hot pressing temperature can be used, the thermal stress during hot pressing is reduced, and the problem that the solar cell panel 1 is hidden or broken is prevented.
Further, the material of the conductive layer 5 includes a simple substance or an alloy of any one of Ag, Bi, Cd, Ga, In, Pb, Sn, Ti, and Zn, and if the melting point of the simple substance is higher than the temperature range, the alloy corresponding to the simple substance and located In the temperature range may be selected; alternatively, the material of the conductive layer 5 includes a conductive resin having a softening temperature of 90 to 120 degrees, the conductive resin includes a resin base material including any one of cellulose acetate, fluorine resin, polysulfone resin, polyester resin, polyamide resin, polyurethane resin, and polyolefin resin, and conductive particles including at least any one of gold, silver, copper, aluminum, zinc, nickel, and graphite, which are disposed in the resin base material. The conductive particles may be in the form of granules and/or flakes.
Further, the width of the overlapping part 4 of two adjacent solar panels 1 is 0.1-3 mm. By adopting the width, the connection contact performance of two adjacent solar panels can be ensured, and unnecessary loss of the solar panels due to overlapping shielding effect can be avoided. For example, the width of the overlap is set to 0.5mm, 1.5mm, 2mm, 3mm, etc.
Further, the conductive line 2 is perpendicular to the gate line 3. The current transmission line is shortest, and the loss is reduced.
Furthermore, each solar cell panel is provided with an interconnection connecting wire (not shown in the figure), and the interconnection connecting wire is electrically connected with each wire 2 on the solar cell panel 1 where the interconnection connecting wire is located. As a preferred way, the interconnecting connecting wires are perpendicular to the wires 2.
Through set up intercommunication connecting wire between wire 2, can be so that the poor region of electrode contact to and the electric energy transmission performance that leads to of connecting between the solar cell panel is guaranteed, improve the yields. The diameter of the interconnecting connecting conductor may be the same as or different from that of conductor 2. One communicating connecting wire can be arranged, and a plurality of communicating connecting wires can also be arranged at proper intervals, and the arrangement amount of the communicating connecting wires needs to comprehensively consider the transmission of the current and ensure less shading as much as possible.
Further, the thickness of the polymer film may be between 5 micrometers and 150 micrometers to ensure that the polymer film has sufficient stability under hot pressing and that the polymer film surface shrinks less and flattens after cooling.
Further, the number of the wires 2 arranged on the front surface of each solar cell panel 1 is 3-100. The plurality of wires 2 may be arranged at even intervals.
The number of the arrangement can be determined by comprehensively considering the transmission of the current and ensuring less shading as much as possible.
Furthermore, a section of grid line is arranged on a straight line or a plurality of sections of grid lines are arranged at intervals.
As shown in fig. 5, a gate line 3 is arranged in a straight line.
As shown in fig. 6, a plurality of gate lines 3 are provided at intervals on a straight line. Each of the gate lines 3 is connected to a conductive line. By adopting the multi-section grid line 3, the material for processing the grid line 3 can be saved, the shading is further reduced, the effective light absorption area of the solar cell panel is increased, and the photoelectric conversion efficiency is improved.
Further, the material of the lead 2 may be at least one of copper, aluminum, silver, gold, copper-nickel alloy, and copper-zinc alloy. The lead 2 may be a copper-clad aluminum wire or other wire with a composite layer structure. As a preferred mode, the lead 2 is a copper wire, and the copper wire has high conductivity and has the advantage of low cost compared with precious metals such as gold and silver.
The conductive layer 5 is formed on the outer surface of the wire 2 by, for example, but not limited to, coating or the like. The wire diameter of the wire 2 is, for example, but not limited to, 50um, 100um, 150um, etc.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (17)
1. A solar cell interconnection structure comprises at least two solar cell panels arranged in a shingled structure, wherein the front surface of each solar cell panel is provided with a plurality of grid lines side by side,
a plurality of wires are arranged on the front surface of each solar cell panel side by side and are intersected with the grid lines and are in conductive connection;
and the overlapping part of two adjacent solar panels is electrically connected with the electrode on the back of the solar panel positioned above through the lead on the solar panel positioned below.
2. The solar cell interconnect structure of claim 1, wherein the solar panel is a monolithic panel or a sub-panel cut from a monolithic panel by one-half, one-third, one-fourth, one-fifth or one-sixth cuts in a direction parallel to the grid lines.
3. The solar cell interconnect structure of claim 1, wherein at least a portion of the conductive wires electrically connected to the electrodes is a flat structure.
4. The solar cell interconnection structure according to claim 1, 2 or 3, wherein a light-transmitting polymer film is laid on a front surface of each solar cell panel, and each lead is fixedly connected to the polymer film.
5. The solar cell interconnect structure of claim 4, wherein the polymer film comprises a base layer and an adhesive layer disposed on the base layer, the adhesive layer being adhered to the front side of the solar panel.
6. The solar cell interconnect structure of claim 5, wherein the material of the base layer and/or the adhesive layer is at least any one of cellulose acetate, polyolefin, polyamide, polyphenylene oxide, fluororesin, polymethyl methacrylate, polysulfone, polyester, epoxy resin, silicone resin, polyimide resin, phenol resin, polyurethane, and acrylic resin.
7. The solar cell interconnect structure of claim 5, wherein at least a portion of each of the conductive lines is located in the adhesive layer.
8. The solar cell interconnection structure according to claim 4, wherein a hollow pattern is disposed on the polymer film, and the hollow pattern is located between two adjacent wires.
9. The solar cell interconnect structure according to claim 1, 2 or 3, wherein the outer peripheral surface of the lead is provided with a conductive layer.
10. The solar cell interconnect structure of claim 9, wherein the material of the conductive layer is a metal or alloy having a melting point between 70-180 degrees; alternatively, the first and second electrodes may be,
the material of the conductive layer is conductive resin with the softening temperature of 90-120 degrees.
11. The solar cell interconnection structure of claim 9, wherein the material of the conductive layer comprises a simple substance or an alloy of any one of Ag, Bi, Cd, Ga, In, Pb, Sn, Ti, and Zn; alternatively, the first and second electrodes may be,
the material of the conductive layer includes a conductive resin including a resin base material including any one of cellulose acetate, fluorine resin, polysulfone resin, polyester resin, polyamide resin, polyurethane resin, and polyolefin resin, and conductive particles including at least any one of gold, silver, copper, aluminum, zinc, nickel, and graphite, which are disposed in the resin base material.
12. The solar cell interconnection structure according to claim 1, 2 or 3, wherein the width of the overlapping part of two adjacent solar panels is 0.1-3 mm.
13. The solar cell interconnect structure of claim 1, 2 or 3, wherein the conductive lines are perpendicular to the gate lines.
14. The solar cell interconnect structure of claim 4, wherein the polymer film has a thickness of between 5 and 150 microns.
15. The solar cell interconnection structure according to claim 1, 2 or 3, wherein the number of the wires provided on the front surface of each solar cell panel is 3 to 100.
16. The solar cell interconnection structure according to claim 1, 2 or 3, wherein one or more of the grid lines are disposed on a straight line or spaced apart from each other.
17. The solar cell interconnect structure of claim 1, 2 or 3, wherein the material of the wire comprises at least any one of copper, aluminum, silver, gold, copper-nickel alloy, and copper-zinc alloy;
or the conducting wire is a copper-clad aluminum wire.
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| CN201811626386.1A CN111403497A (en) | 2018-12-28 | 2018-12-28 | Solar cell interconnection structure |
| PCT/CN2019/124852 WO2020135070A1 (en) | 2018-12-28 | 2019-12-12 | Solar cell interconnection structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811626386.1A CN111403497A (en) | 2018-12-28 | 2018-12-28 | Solar cell interconnection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023103260A1 (en) * | 2021-12-08 | 2023-06-15 | 中能创光电科技(常州)有限公司 | Photovoltaic cell assembly and manufacturing method therefor |
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| CN207818590U (en) * | 2018-05-08 | 2018-09-04 | 君泰创新（北京）科技有限公司 | A kind of generating electricity on two sides solar cell and photovoltaic module |
| 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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| US20120325282A1 (en) * | 2011-06-24 | 2012-12-27 | Solopower, Inc. | Solar cells with grid wire interconnections |
| CN207818590U (en) * | 2018-05-08 | 2018-09-04 | 君泰创新（北京）科技有限公司 | A kind of generating electricity on two sides solar cell and photovoltaic module |
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