CN113097325A - Solar cell module - Google Patents
Solar cell module Download PDFInfo
- Publication number
- CN113097325A CN113097325A CN202110327049.8A CN202110327049A CN113097325A CN 113097325 A CN113097325 A CN 113097325A CN 202110327049 A CN202110327049 A CN 202110327049A CN 113097325 A CN113097325 A CN 113097325A
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- Prior art keywords
- adhesive film
- photovoltaic cell
- interconnection
- grid line
- film
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- 239000002313 adhesive film Substances 0.000 claims abstract description 74
- 238000004806 packaging method and process Methods 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 claims description 3
- 238000005240 physical vapour deposition Methods 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 239000008393 encapsulating agent Substances 0.000 claims 4
- 238000007772 electroless plating Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 19
- 229920006280 packaging film Polymers 0.000 abstract description 5
- 239000012785 packaging film Substances 0.000 abstract description 5
- 238000003475 lamination Methods 0.000 description 5
- 239000000969 carrier Substances 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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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
- H01L31/04—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
-
- 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
-
- 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
-
- 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 solar cell module. The solar cell module includes: front bezel glass, front rubber membrane, photovoltaic cell piece array, back floor glued membrane and the back floor packaging board of superpose in proper order, each photovoltaic cell piece of photovoltaic cell piece array has vice grid line, and above-mentioned solar module still includes a plurality of electric conductors, and front rubber membrane and back floor glued membrane are the grid line glued membrane, and the grid line glued membrane includes: a substrate packaging adhesive film; the photovoltaic packaging film comprises an electric interconnection layer array, wherein each electric interconnection layer of the electric interconnection layer array is arranged on a substrate packaging adhesive film, each electric interconnection layer comprises a main grid line part and an interconnection part, the main grid line part comprises one or more main grid lines, the interconnection part is electrically connected with each main grid line, the electric interconnection layer is arranged corresponding to a photovoltaic cell sheet, the main grid lines are electrically connected with auxiliary grid lines, the interconnection parts at the two opposite ends of a front layer adhesive film and a rear layer adhesive film are protruded to be arranged with the photovoltaic cell sheet, the interconnection parts at the other positions of the front layer adhesive film and the rear layer adhesive film are correspondingly arranged between the adjacent photovoltaic cell sheets, and an electric conductor is electrically connected with the interconnection parts.
Description
Technical Field
The invention relates to the technical field of photovoltaics, in particular to a solar cell module.
Background
High efficiency and low cost are always the trend of photovoltaic development. The heterojunction battery has the characteristics of high conversion efficiency, low temperature coefficient, excellent double-sided power generation rate and the like, is suitable for flaking, and is considered to be the next generation ultra-high efficiency battery technology with the most industrialization potential. Meanwhile, the heterojunction battery also has the following problems: 1) the interconnection of the conventional heterojunction battery plates needs to adopt a low-temperature welding process, and the welding reliability needs to be further optimized; 2) the double-sided low-temperature silver paste of the heterojunction battery has large using amount and is not beneficial to cost control.
In order to reduce the amount of silver paste, a technology for arranging a main grid line by using a metal line is available at present, namely only an auxiliary grid line is arranged on a battery piece, the metal line is used as the main grid line, and the metal line and the auxiliary grid line are electrically connected after lamination. However, the confluence of the metal wires is difficult to realize, so that the current leading-out structure of the photovoltaic module is complex.
Disclosure of Invention
The invention mainly aims to provide a solar cell module to solve the problem that current lead-out is complex when a metal wire of a photovoltaic cell is used as a main grid line in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a solar cell module, including a front glass, a front adhesive film, a photovoltaic cell array, a rear adhesive film, and a rear package board, which are sequentially stacked, each photovoltaic cell of the photovoltaic cell array having a secondary gate line, wherein the solar cell module further includes a plurality of electrical conductors, the front adhesive film and the rear adhesive film are gate lines, and the gate lines adhesive film includes: a substrate packaging adhesive film; the photovoltaic packaging film comprises an electric interconnection layer array, wherein each electric interconnection layer of the electric interconnection layer array is arranged on a substrate packaging adhesive film, each electric interconnection layer comprises a main grid line part and an interconnection part, the main grid line part comprises one or more main grid lines, the interconnection part is electrically connected with each main grid line, each electric interconnection layer of a grid line adhesive film is arranged in one-to-one correspondence with a photovoltaic cell piece, the main grid lines of the grid line adhesive film are electrically connected with auxiliary grid lines, the interconnection parts at the two opposite ends of a front layer adhesive film and a rear layer adhesive film are protruded to be arranged with the photovoltaic cell piece, the interconnection parts at the other positions of the front layer adhesive film and the rear layer adhesive film are arranged in one-to-one correspondence between adjacent photovoltaic cell pieces, and electric.
Further, the thickness of the main grid line is 0.01-0.5 mm, and the thickness of the interconnecting part is preferably 0.03-0.8 mm. Preferably, the thickness of the substrate packaging adhesive film is 0.2-0.8 mm.
Furthermore, the photovoltaic cell array is divided into a plurality of photovoltaic cell units, each photovoltaic cell unit comprises a plurality of photovoltaic cells arranged along a first direction, the photovoltaic cell units are arranged along a second direction, the first direction and the second direction are vertically arranged, the main grid lines extend along the first direction, and the interconnection parts in the electrical interconnection layers are arranged on one side of the main grid line parts and are electrically connected with the end parts of the main grid lines.
Further, starting from any end of the second direction, the interconnections in each electrical interconnection layer corresponding to the photovoltaic cell units in the odd-numbered columns are electrically connected with the first ends of the main grid lines, and the interconnections in each electrical interconnection layer corresponding to the photovoltaic cell units in the even-numbered columns are electrically connected with the second ends of the main grid lines.
Further, the substrate packaging adhesive film is an EVA film, and preferably, the substrate packaging adhesive film is a pre-crosslinked film.
Further, the main grid line is a grid line made of solidified conductive paste, and preferably, the main grid line is arranged on the substrate packaging adhesive film through one of screen printing, ink-jet printing, coating process, electroplating, chemical plating, physical vapor deposition and chemical vapor deposition.
Further, the interconnection part is a gate line or a metal layer of cured conductive paste.
Further, the length of the conductor along the second direction is less than or equal to the length of the battery piece along the second direction.
Furthermore, the surface of the conductor is plated with low-temperature solder, the thickness of the conductor is preferably less than or equal to the thickness of the photovoltaic cell and greater than or equal to 50 μm, and the cross section of the conductor is preferably rectangular or circular.
Further, the rear packaging plate is glass, and the front adhesive film and the rear adhesive film are transparent adhesive films; or the back layer packaging plate is a back plate, the front layer adhesive film is a transparent adhesive film, and the back layer adhesive film is a colored film.
By applying the technical scheme of the invention, the main grid line is not arranged on the surface of the cell piece, but arranged on the packaging adhesive film, and the interconnection part connected with the main grid line is also arranged, the main grid line and the interconnection part form interconnection layers together, and each interconnection layer corresponds to one photovoltaic cell piece. After the solar cell module is packaged, the substrate packaging adhesive film is tightly bonded with the cell slice and is filled into all the spaces, and the main grid line and the auxiliary grid line form tight electric connection. The main grid line enriches the current carriers on the auxiliary grid line, and further gathers on the interconnection part to realize the collection of the current generated by the battery piece. In addition, the interconnection parts arranged at the other positions of the front-layer adhesive film and the rear-layer adhesive film are arranged between the adjacent photovoltaic cell pieces in a one-to-one correspondence manner, and the electric conductors are electrically connected with the interconnection parts arranged in the one-to-one correspondence manner to form an electric path for connecting the two cell pieces in series. Further, the current lead-out structure can be simplified by electrically connecting the external circuit with the conductor and the protruding interconnection portion.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic view of a grid line adhesive film of the present invention;
fig. 2 shows a schematic structural diagram of a grid line adhesive film and a battery piece before lamination; and
fig. 3 shows a schematic structural diagram of the grid line adhesive film and the battery piece after lamination.
10. A substrate packaging adhesive film; 20. an electrical interconnect layer; 21. a main gate line portion; 22. an interconnection portion; 30. an electrical conductor; and 40, a photovoltaic cell sheet.
Detailed Description
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 invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As this application background art analyzes, no main grid line technique among the prior art, only set up the vice grid line on the battery piece promptly, utilize the metal wire as the main grid line, when the technique that metal wire and vice grid line electricity are connected was implemented after the lamination, the confluence of metal wire is difficult to realize, lead to photovoltaic module's electric current to derive the structure comparatively complicated, in order to solve this problem, this application provides a solar module, as shown in fig. 1, this solar module is including the front bezel glass who superposes in proper order, the front rubber film, photovoltaic cell piece array, back glue film and back packaging board, each photovoltaic cell piece 40 of photovoltaic cell piece array has the vice grid line, this solar module still includes a plurality of electric conductors 30, front rubber film and back glue film are the grid line glue film, the grid line glue film includes: the photovoltaic packaging film comprises a substrate packaging film 10 and an electric interconnection layer array, wherein each electric interconnection layer 20 of the electric interconnection layer array is arranged on the substrate packaging film 10, each electric interconnection layer 20 comprises a main grid line part 21 and an interconnection part 22, the main grid line part 21 comprises one or more main grid lines, the interconnection part 22 is electrically connected with each main grid line, each electric interconnection layer 20 of a grid line film is arranged in one-to-one correspondence with a photovoltaic cell piece 40, the main grid lines of the grid line film are electrically connected with auxiliary grid lines, the interconnection parts 22 at the two opposite ends of a front layer film and a rear layer film protrude out to be arranged with the photovoltaic cell piece 40, the interconnection parts 22 at the other positions of the front layer film and the rear layer film are arranged in one-to-one correspondence between the adjacent photovoltaic cell pieces 40, and the electric conductors 30 are electrically connected with the.
The solar cell module of this application improves encapsulation glued membrane and battery piece subassembly on prior art's basis, no longer sets up the main grid line on the battery piece surface, but sets up the main grid line on the encapsulation glued membrane, has still set up the interconnecting part 22 that links to each other with the main grid line simultaneously, and main grid line and interconnecting part 22 form the interconnection layer jointly, and each interconnection layer all corresponds with a photovoltaic cell piece 40. After the solar cell module is packaged, the substrate packaging adhesive film 10 is tightly bonded with the cell slice and is filled into all the spaces, and the main grid line and the auxiliary grid line form tight electric connection. The main grid lines enrich carriers on the auxiliary grid lines, and further gather the carriers on the interconnection part 22 to collect current generated by the cell. In addition, the interconnection portions 22 disposed at the other positions of the front layer adhesive film and the rear layer adhesive film are disposed in one-to-one correspondence between the adjacent photovoltaic cell pieces 40, and the electric conductors 30 are electrically connected with the interconnection portions 22 disposed in one-to-one correspondence, so as to form an electric path for connecting the two cell pieces in series. Further, the conductor 30 and the protruding interconnection 22 can be electrically connected to an external circuit, thereby simplifying the current lead-out structure.
In one embodiment, in order to further reduce the resistive loss, the thickness of the bus bar is preferably 0.01 to 0.5mm, and the thickness of the interconnection 22 is preferably 0.03 to 0.8 mm. The thickness of the substrate packaging adhesive film 10 is preferably 0.2-0.8 mm, and the thickness is preferably in a range considering factors such as adhesion and stability of the grid line adhesive film structure.
At present, the solar cell module in the prior art has the cells arranged in various rules, and in order to facilitate assembly with the grid line adhesive film, the application preferably divides the photovoltaic cell array into a plurality of photovoltaic cell units, each photovoltaic cell unit includes a plurality of photovoltaic cells 40 arranged along a first direction, and the photovoltaic cell units are arranged along a second direction, the first direction and the second direction are perpendicular, the main grid line extends along the first direction, and the interconnection portion 22 in each electrical interconnection layer 20 is arranged on one side of the main grid line portion 21 and is electrically connected with the end portion of each main grid line. By the above method, the electrical interconnection layers 20 of the corresponding gate line adhesive films are arranged in mutually perpendicular rows and columns. The grid line glue films are regularly arranged, so that the grid line glue films are convenient to manufacture, and the electrical interconnection layers 20 of the grid line glue films and the solar cells are convenient to be arranged in a one-to-one correspondence mode. Meanwhile, each main grid line is a straight line which is parallel to each other. The setting shortens the conduction distance of electric current like this, can reduce the series resistance of subassembly, reduces the resistance loss to reduce unnecessary and sheltered from, made the photoelectric conversion rate further promote.
In one embodiment, starting at either end of the second direction, the interconnects 22 in each electrical interconnect layer 20 corresponding to the odd-numbered columns of photovoltaic cell units are electrically connected to a first end of the bus bar, and the interconnects 22 in each electrical interconnect layer 20 corresponding to the even-numbered columns of photovoltaic cell units are electrically connected to a second end of the bus bar. By the arrangement mode, the interconnection parts 22 in each row are mutually staggered in the second direction, so that the phenomenon that the stress of the packaged grid line adhesive film at the interconnection parts 22 is overlarge, the resistance is increased, and the structural stability of the grid line adhesive film is reduced is avoided.
The substrate encapsulating adhesive film 10 may be prepared by using any commonly used encapsulating adhesive film material in the prior art, and in order to further improve the solar transmittance and the structural stability, the substrate encapsulating adhesive film 10 is preferably an EVA film. In order to reduce the package deformation of the bus bars and the interconnects 22 and avoid the occurrence of cracks, the substrate packaging adhesive film 10 is preferably a pre-crosslinked film.
In order to further make the main gate lines easier to set, the main gate lines are preferably cured conductive paste gate lines, and the main gate lines are further preferably set on the substrate packaging adhesive film 10 through one of screen printing, inkjet printing, coating process, electroplating, chemical plating, physical vapor deposition and chemical vapor deposition process, so as to further improve the efficiency of setting the main gate lines.
In order to further facilitate the provision of the interconnections 22, it is preferable that the interconnections 22 be a gate line or a metal layer of a cured conductive paste.
In one embodiment, the length of the electrical conductor 30 in the second direction is less than or equal to the length of the cell piece in the second direction. The electric conductor 30 can not protrude out of the battery plate relatively, so that the internal structure of the assembly is more regular, the conductive material is saved, and the phenomenon that the assembly is damaged due to local overheating caused by mistaken touch among the conductive materials is avoided.
Preferably, the surface of the conductive body 30 is plated with low temperature solder which can melt at the lamination temperature to make the connection between the conductive body 30 and the interconnection 22 more tight, and preferably, the thickness of the conductive body 30 is less than or equal to the thickness of the photovoltaic cell 40 and greater than or equal to 50 μm, so that an excessively thick layer may cause the interconnection layer to bend under stress to raise the risk of fracture, and an excessively thin layer may cause the contact between part of the interconnection 22 and the conductive body 30 to be insufficiently tight. It is preferable that the cross section of the conductive body 30 is rectangular or circular to further enhance the contact tightness of the division interconnection 22 and the conductive body 30.
In one embodiment, preferably, the rear packaging plate is glass, and the front adhesive film and the rear adhesive film are transparent adhesive films to further improve the solar transmittance; or the back layer packaging plate is a back plate, the front layer adhesive film is a transparent adhesive film, and the back layer adhesive film is a colored film.
As can be seen from the above description, the above-described embodiments of the present invention achieve the following technical effects:
the solar cell module of this application improves encapsulation glued membrane and battery piece subassembly on prior art's basis, no longer sets up the main grid line on the battery piece surface, but sets up the main grid line on the encapsulation glued membrane, has still set up the interconnection portion that links to each other with the main grid line simultaneously, and main grid line and interconnection portion form the interconnection layer jointly, and each interconnection layer all corresponds with a photovoltaic cell piece. After the solar cell module is packaged, the substrate packaging adhesive film is tightly bonded with the cell slice and is filled into all the spaces, and the main grid line and the auxiliary grid line form tight electric connection. The main grid line enriches the current carriers on the auxiliary grid line, and further gathers on the interconnection part to realize the collection of the current generated by the battery piece. In addition, the interconnection parts arranged at the other positions of the front-layer adhesive film and the rear-layer adhesive film are arranged between the adjacent photovoltaic cell pieces in a one-to-one correspondence manner, and the electric conductors are electrically connected with the interconnection parts arranged in the one-to-one correspondence manner to form an electric path for connecting the two cell pieces in series. Further, the current lead-out structure can be simplified by electrically connecting the external circuit with the conductor and the protruding interconnection portion.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a solar module, includes front bezel glass, front rubber membrane, photovoltaic cell piece array, back glue film and the back packaging board of superpose in proper order, each photovoltaic cell piece (40) of photovoltaic cell piece array have vice grid line, a serial communication port, solar module still includes a plurality of electric conductors (30), the front rubber membrane with the back glue film is the grid line glued membrane, the grid line glued membrane includes:
a base packaging adhesive film (10);
an array of electrical interconnect layers, each electrical interconnect layer (20) of the array of electrical interconnect layers being disposed on the base encapsulant film (10), each electrical interconnect layer (20) including a main gate portion (21) and an interconnect portion (22), the main gate line part (21) includes one or more main gate lines, the interconnection part (22) is electrically connected to each of the main gate lines, each electric interconnection layer (20) of the grid line adhesive film is arranged in one-to-one correspondence with the photovoltaic cell pieces (40) and the main grid lines of the grid line adhesive film are electrically connected with the auxiliary grid lines, the interconnecting parts (22) at the two opposite ends of the front layer adhesive film and the rear layer adhesive film are arranged in a protruding way with the photovoltaic cell piece (40), the interconnecting parts (22) at the other positions of the front layer adhesive film and the rear layer adhesive film are correspondingly arranged between the adjacent photovoltaic cell pieces (40) one by one, and the electric conductors (30) are electrically connected to the interconnecting portions (22) arranged in one-to-one correspondence.
2. The solar cell module according to claim 1, wherein the thickness of the bus bar is 0.01-0.5 mm, preferably the thickness of the interconnection (22) is 0.03-0.8 mm, preferably the thickness of the base packaging adhesive film (10) is 0.2-0.8 mm.
3. The solar cell module according to claim 1, wherein the photovoltaic cell sheet array is divided into a plurality of photovoltaic cell sheet units, each of the photovoltaic cell sheet units includes a plurality of photovoltaic cell sheets (40) arranged in a first direction, and the photovoltaic cell sheet units are arranged in a second direction, the first direction and the second direction are arranged perpendicularly, the main gate lines extend in the first direction, and the interconnection portions (22) in each of the electrical interconnection layers (20) are arranged on one side of the main gate line portions (21) and are electrically connected to end portions of the main gate lines.
4. The solar cell module according to claim 3, wherein the interconnection portion (22) of each of the electrical interconnection layers (20) corresponding to the photovoltaic cell sheet units in odd-numbered columns is electrically connected to a first end of the bus bar, and the interconnection portion (22) of each of the electrical interconnection layers (20) corresponding to the photovoltaic cell sheet units in even-numbered columns is electrically connected to a second end of the bus bar, starting from either end of the second direction.
5. Solar module according to claim 1, characterized in that the base encapsulant film (10) is an EVA film, preferably the base encapsulant film (10) is a pre-crosslinked film.
6. The solar cell module according to claim 1, wherein the bus bars are cured conductive paste bus bars, preferably the bus bars are disposed on the base encapsulant film (10) by one of screen printing, inkjet printing, coating process, electroplating, electroless plating, physical vapor deposition, chemical vapor deposition process.
7. The solar cell module according to claim 1, wherein the interconnects (22) are cured conductive paste grid lines or metal layers.
8. The solar cell module according to claim 3, wherein the length of the electrical conductor (30) in the second direction is less than or equal to the length of the cell sheet in the second direction.
9. The solar cell module according to claim 1, wherein the surface of the conductor (30) is plated with low temperature solder, preferably the thickness of the conductor (30) is less than or equal to the thickness of the photovoltaic cell (40) and greater than or equal to 50 μm, preferably the cross section of the conductor (30) is rectangular or circular.
10. The solar cell module as claimed in claim 1, wherein the rear packaging plate is glass, and the front adhesive film and the rear adhesive film are transparent adhesive films; or the rear packaging plate is a back plate, the front adhesive film is a transparent adhesive film, and the rear adhesive film is a colored film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110327049.8A CN113097325A (en) | 2021-03-26 | 2021-03-26 | Solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110327049.8A CN113097325A (en) | 2021-03-26 | 2021-03-26 | Solar cell module |
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| CN113097325A true CN113097325A (en) | 2021-07-09 |
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| CN202110327049.8A Pending CN113097325A (en) | 2021-03-26 | 2021-03-26 | Solar cell module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690324A (en) * | 2021-08-17 | 2021-11-23 | 江苏辉伦太阳能科技有限公司 | Novel HIT battery piece and manufacturing method thereof and component manufacturing method |
| CN117438488A (en) * | 2023-12-21 | 2024-01-23 | 正泰新能科技股份有限公司 | Photovoltaic module and photovoltaic module preparation method |
| WO2024016806A1 (en) * | 2022-07-21 | 2024-01-25 | 常州时创能源股份有限公司 | Photovoltaic cell unit and preparation methods therefor |
| CN113690324B (en) * | 2021-08-17 | 2024-04-30 | 江苏辉伦太阳能科技有限公司 | Novel HIT battery piece and manufacturing method and assembly manufacturing method thereof |
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| CN113690324A (en) * | 2021-08-17 | 2021-11-23 | 江苏辉伦太阳能科技有限公司 | Novel HIT battery piece and manufacturing method thereof and component manufacturing method |
| CN113690324B (en) * | 2021-08-17 | 2024-04-30 | 江苏辉伦太阳能科技有限公司 | Novel HIT battery piece and manufacturing method and assembly manufacturing method thereof |
| WO2024016806A1 (en) * | 2022-07-21 | 2024-01-25 | 常州时创能源股份有限公司 | Photovoltaic cell unit and preparation methods therefor |
| CN117438488A (en) * | 2023-12-21 | 2024-01-23 | 正泰新能科技股份有限公司 | Photovoltaic module and photovoltaic module preparation method |
| CN117438488B (en) * | 2023-12-21 | 2024-03-29 | 正泰新能科技股份有限公司 | Photovoltaic module and photovoltaic module preparation method |
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