CN116093198A - Positioning and connecting method for metal-electrode-free battery in photovoltaic module - Google Patents
Positioning and connecting method for metal-electrode-free battery in photovoltaic module Download PDFInfo
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- CN116093198A CN116093198A CN202211548967.4A CN202211548967A CN116093198A CN 116093198 A CN116093198 A CN 116093198A CN 202211548967 A CN202211548967 A CN 202211548967A CN 116093198 A CN116093198 A CN 116093198A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000002313 adhesive film Substances 0.000 claims description 15
- 238000004132 cross linking Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- H—ELECTRICITY
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- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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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
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022433—Particular geometry of the grid contacts
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- 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
- H01L31/022466—Electrodes made of transparent conductive layers, e.g. TCO, ITO layers
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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
- H01L31/048—Encapsulation of modules
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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
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
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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
- 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
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a positioning and connecting method for a metal electrode-free battery in a photovoltaic module, belonging to the technical field of photovoltaic modules; in the invention, the conductive connecting wire is directly connected with the TCO battery piece (the battery piece without the metal electrode) by adopting a manufacturing process different from that of the conventional photovoltaic module, so that the positioning precision requirement of the conductive connecting wire and the battery piece can be effectively reduced, and the placing and fixing speed of the battery piece can be improved; the positioning and connecting method of the metal electrode-free battery in the photovoltaic module is simple and is suitable for large-scale production of the photovoltaic module.
Description
Technical Field
The invention belongs to the technical field of photovoltaic modules, and particularly relates to a positioning and connecting method for a metal electrode-free battery in a photovoltaic module.
Background
With continuous promotion of cost reduction and efficiency improvement in the photovoltaic industry, the economy of photovoltaic power generation is increasingly remarkable, and the scale of the photovoltaic installation presents a rapidly growing situation. Along with the rapid development of photovoltaic technology, the requirements for high-power components are more and more, the cost of the photovoltaic components is reduced, and the improvement of the efficiency and the reliability of the photovoltaic components is the direction of photovoltaic power generation. However, the positioning requirements of the battery piece in the existing photovoltaic module preparation process are high, and the placing and fixing speeds of the battery piece are low, so that the production efficiency of the photovoltaic module is greatly affected. Therefore, it is necessary to provide a battery piece connection method for reducing the positioning accuracy requirement of the battery piece and improving the placing and fixing speed of the battery piece.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a positioning and connecting method for a battery without a metal electrode in a photovoltaic module. In the invention, the conductive connecting wire is directly connected with the TCO battery piece (the battery piece without the metal electrode) by adopting a manufacturing process different from that of the conventional photovoltaic module, so that the positioning precision requirement of the conductive connecting wire and the battery piece can be effectively reduced, and the placing and fixing speed of the battery piece can be improved; the positioning and connecting method of the metal electrode-free battery in the photovoltaic module is simple and is suitable for large-scale production of the photovoltaic module.
The present invention achieves the above technical object by the following means.
A positioning and connecting method of a metal electrode-free battery in a photovoltaic module comprises the following steps:
(1) Respectively bonding and crosslinking a front plate and a back plate with adhesive films, embedding a conductive connecting wire and a bus bar on the adhesive films of the front plate and the back plate through hot pressing after the crosslinking is finished, and then dividing the conductive connecting wire according to the width of a battery piece to respectively obtain a front plate prefabricated member and a back plate prefabricated member;
(2) Sequentially laying TCO battery pieces on the conductive connecting wires of the front plate prefabricated member, wherein the laying process comprises the following steps: the TCO battery piece is laid on a conductive connecting wire positioned by a positioning device or positioned while the TCO battery piece is laid;
repeating the laying operation until the battery piece is completely laid, and obtaining a battery layer;
(3) The back sheet preform is laminated by pressing it against the cell layer.
Further, in the step (1), the bus bar is overlapped with the head and the tail of the conductive connecting wire.
Further, in the step (2), the positioning device includes a positioning tool.
Further, the positioning device is preferably an L-shaped positioning tool.
Further, the L-shaped positioning tool adopts an air cylinder to control one end of a conductive connecting wire on the front plate prefabricated member to position, and after positioning, the battery piece is laid and fixed on the triangular part of the L-shaped positioning tool;
after the laying and fixing are completed, the positioning tool which adopts the air cylinder to control the L-shaped structure to move rightwards to position on the conductive connecting wire, the laying and fixing operation of the battery pieces is repeated, and after the laying and fixing are completed, the laying and fixing of the first row of battery pieces of the photovoltaic module are completed.
Further, in the step (2), the two L-shaped positioning devices are respectively positioned at the head and the tail of the front plate prefabricated member, and the laying and fixing work of the TCO battery pieces is synchronously performed.
Further, in the step (2), after laying, the TCO cell is fixed in the step (2).
Further, the fixing comprises heating to enable the adhesive film to be melted and fixed or to be stuck and fixed by adhesive tape.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the front plate/back plate, the adhesive film, the conductive connecting wires and the bus bars are prefabricated into the front plate prefabricated member and the back plate prefabricated member, the pre-crosslinking of the front plate/back plate and the adhesive film can better play a role in fixing and manufacturing, and the adhesive film is more stable and does not have delamination phenomenon. And moreover, the pre-crosslinking of the adhesive film can embed the conductive connecting wires and the bus bars on the adhesive films of the front plate prefabricated member and the back plate prefabricated member through hot pressing, so that the processing speed of a production line can be improved, and the yield can be improved.
In the invention, by adopting a manufacturing process different from that of a conventional photovoltaic module, the conductive connecting wires on the front plate prefabricated member and the back plate prefabricated member are directly connected with the TCO battery piece, and the electrodes of the battery piece do not need to be aligned with the conductive connecting wires, so that the positioning precision requirements of the conductive connecting wires and the battery piece can be effectively reduced, and the placing and fixing speed of the battery piece is improved; the positioning and connecting method of the metal electrode-free battery in the photovoltaic module is simple and is suitable for large-scale production of the photovoltaic module.
In the invention, as the precision of the cell slice placement is reduced, the placement of at least two TCO cells or at least one string of TCO cells can be completed only by simple mechanical positioning, compared with the prior art, the method disclosed by the invention has the advantages that the slice placement speed is increased by times, the slice placement and welding are not bottleneck procedures in the assembly production process, and the assembly manufacturing speed is greatly improved. Meanwhile, the equipment is simple and high in productivity, a plurality of visual positioning equipment and equipment with high robot equivalent grid are reduced, the cost of single equipment and the equipment use amount are greatly reduced, and the production and management cost is saved.
Drawings
Fig. 1 is a front view of a photovoltaic module according to the present invention.
Fig. 2 is a front partial view of a photovoltaic module according to the present invention.
Fig. 3 is a back view of the photovoltaic module according to the present invention.
Fig. 4 is a battery cell positioning chart.
Fig. 5 is a three-view of an L-shaped positioning tool, in which a is a top view, b is a side view, and c is a front view.
Reference numerals:
1-a conductive connection line; 2-bus bar.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
Example 1:
in this embodiment, a method for positioning and connecting a metal-free electrode cell in the photovoltaic module is described in detail, which specifically includes the following steps:
(1) As shown in fig. 1 to 3, the front plate and the back plate are respectively crosslinked with the adhesive film, after the crosslinking is completed, the conductive connecting wire 1 and the bus bar 2 are embedded into the adhesive films of the front plate and the back plate through hot pressing, and the bus bar 2 is overlapped with the conductive connecting wire 1 from head to tail. Then dividing the conductive connecting wire 1 according to the width of the battery piece to respectively obtain a front plate prefabricated member and a back plate prefabricated member;
(2) Positioning on the segmented conductive connecting wires 1 on the front plate prefabricated member by adopting a positioning device, laying TCO (transparent conductive oxide) battery pieces after positioning, and repeating positioning and laying operations until the battery pieces are completely laid, so as to obtain a battery layer shown in fig. 4;
(3) The back sheet preform is laminated by pressing it against the cell layer.
Although the triangular wire is taken as an example of the conductive connection line 1 in the following description, the connection between TCO cells in the present invention is not limited to the triangular wire, and other conductive connection lines having a circular shape, a flat shape, a semicircular shape, a trapezoid shape, etc. may be used as well.
In addition, the positioning device is illustrated by taking an L-shaped positioning tool as shown in fig. 5 as an example, the L-shaped positioning tool is made of Teflon, when the L-shaped positioning tool is used for laying TCO battery pieces, an air cylinder is used for controlling the L-shaped positioning tool to position one end of a photovoltaic module, a heating sucker is used for placing the TCO battery pieces at the triangular part of the L-shaped positioning tool, the sucker is used for laying down the TCO battery pieces and heating the TCO battery pieces, and the TCO battery pieces are fixed after the adhesive film melts. After positioning, the battery piece is laid and fixed on the triangular part of the L-shaped positioning tool; after the laying and fixing are completed, the positioning tool which controls the L-shaped part by the air cylinder moves rightwards to be positioned on the triangular metal wire, the laying and fixing operation of the battery pieces is repeated, and after the laying and fixing are completed, the first row of TCO battery pieces of the photovoltaic module are laid and fixed. And then the L-shaped positioning tool is moved downwards, and the positioning and laying operation is repeated until all the TCO battery pieces are laid, so that a battery layer is obtained. During a specific positioning process. The positioning tool can be used for positioning firstly, then the TCO battery piece is laid, and the positioning can be performed while the TCO battery piece is laid.
In the specific implementation, the TCO battery pieces can be laid simultaneously by adopting the positioning devices at the head and the tail of the front plate prefabricated member respectively, and the laying speed of the TCO battery pieces is increased. In the invention, by adopting a manufacturing process different from that of a conventional photovoltaic module, the triangular metal wires on the front plate prefabricated part and the back plate prefabricated part are directly connected with the TCO battery piece, and the electrodes of the battery piece do not need to be aligned with the triangular metal wires, so that the positioning precision requirements of the triangular metal wires and the battery piece can be effectively reduced, and the placing and fixing speed of the battery piece is improved; the positioning and connecting method of the metal electrode-free battery in the photovoltaic module is simple and is suitable for large-scale production of the photovoltaic module.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (8)
1. The positioning and connecting method of the metal electrode-free battery in the photovoltaic module is characterized by comprising the following steps of:
(1) Respectively bonding and crosslinking a front plate and a back plate with adhesive films, embedding a conductive connecting wire (1) and a bus bar (2) on the adhesive films of the front plate and the back plate through hot pressing after the crosslinking is finished, and then dividing the conductive connecting wire (1) according to the widths of the battery pieces to respectively obtain a front plate prefabricated member and a back plate prefabricated member;
(2) Sequentially laying TCO battery pieces on the conductive connecting wires (1) of the front plate prefabricated member, wherein the laying process comprises the following steps: the TCO battery piece is laid on a conductive connecting wire (1) positioned by a positioning device or positioned while the TCO battery piece is laid;
repeating the laying operation until the battery piece is completely laid, and obtaining a battery layer;
(3) The back sheet preform is laminated by pressing it against the cell layer.
2. The method for positioning and connecting a metal-free electrode cell in a photovoltaic module according to claim 1, wherein in step (1), the bus bar (2) is overlapped with the conductive connection line (1) end to end.
3. The method for positioning and connecting a metal-free electrode cell in a photovoltaic module according to claim 1, wherein in step (2), the positioning device comprises a positioning tool.
4. The method for positioning and connecting a metal-free electrode cell in a photovoltaic module according to claim 3, wherein the positioning device is an L-shaped positioning tool.
5. The positioning and connecting method of the metal electrode-free battery in the photovoltaic module according to claim 4, wherein the L-shaped positioning tool is used for positioning one end of the conductive connecting wire (1) on the front plate prefabricated member by adopting a cylinder to control the L-shaped positioning tool, and after positioning, the battery piece is laid and fixed on the triangular part of the L-shaped positioning tool;
after the laying and fixing are completed, the positioning tool which adopts the air cylinder to control the L-shaped structure to move rightwards to position on the conductive connecting wire (1), the laying and fixing operation of the battery pieces is repeated, and after the laying and fixing are completed, the first row of battery pieces of the photovoltaic module are laid and fixed.
6. The method for positioning and connecting a metal electrode-free battery in a photovoltaic module according to claim 1, wherein in the step (2), the positioning devices comprise two positioning devices which are respectively positioned at the head and the tail of the front plate prefabricated member, and the laying and fixing work of the TCO battery pieces is synchronously carried out.
7. The method of positioning and connecting a metal-free electrode cell in a photovoltaic module according to claim 1, wherein in step (2), after laying, TCO cells are fixed.
8. The method of positioning and connecting a metal-free electrode cell in a photovoltaic module according to claim 7, wherein the fixing comprises heating to melt the adhesive film or tape-affixing the adhesive film.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211548967.4A CN116093198A (en) | 2022-12-05 | 2022-12-05 | Positioning and connecting method for metal-electrode-free battery in photovoltaic module |
| PCT/CN2023/131466 WO2024120130A1 (en) | 2022-12-05 | 2023-11-14 | Method for positioning and connecting metal-free electrode cell in photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211548967.4A CN116093198A (en) | 2022-12-05 | 2022-12-05 | Positioning and connecting method for metal-electrode-free battery in photovoltaic module |
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| Publication Number | Publication Date |
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| CN116093198A true CN116093198A (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211548967.4A Pending CN116093198A (en) | 2022-12-05 | 2022-12-05 | Positioning and connecting method for metal-electrode-free battery in photovoltaic module |
Country Status (2)
| Country | Link |
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| CN (1) | CN116093198A (en) |
| WO (1) | WO2024120130A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120130A1 (en) * | 2022-12-05 | 2024-06-13 | 常州时创能源股份有限公司 | Method for positioning and connecting metal-free electrode cell in photovoltaic module |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476501A (en) * | 2010-11-23 | 2012-05-30 | 上海太阳能科技有限公司 | Laying tool for assembling solar cell module |
| CN104752553A (en) * | 2013-12-31 | 2015-07-01 | 惠州比亚迪实业有限公司 | Photovoltaic module and packaging process thereof |
| CN106847967B (en) * | 2016-12-28 | 2018-08-10 | 珠海格力电器股份有限公司 | The packaging method of photovoltaic module and the photovoltaic module |
| CN110416320A (en) * | 2019-07-30 | 2019-11-05 | 苏州迈展自动化科技有限公司 | A kind of no main grid photovoltaic module |
| CN110556443A (en) * | 2019-10-14 | 2019-12-10 | 绵阳金能移动能源有限公司 | Flexible solar cell interconnection assembly and preparation method thereof |
| CN216015394U (en) * | 2021-07-21 | 2022-03-11 | 横店集团东磁股份有限公司 | Tooling template |
| CN114784146A (en) * | 2022-05-12 | 2022-07-22 | 常州时创能源股份有限公司 | Preparation method of photovoltaic prefabricated part |
| CN115295681A (en) * | 2022-09-16 | 2022-11-04 | 常州时创能源股份有限公司 | Photovoltaic cell connection process |
| CN116093198A (en) * | 2022-12-05 | 2023-05-09 | 常州时创能源股份有限公司 | Positioning and connecting method for metal-electrode-free battery in photovoltaic module |
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- 2022-12-05 CN CN202211548967.4A patent/CN116093198A/en active Pending
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- 2023-11-14 WO PCT/CN2023/131466 patent/WO2024120130A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120130A1 (en) * | 2022-12-05 | 2024-06-13 | 常州时创能源股份有限公司 | Method for positioning and connecting metal-free electrode cell in photovoltaic module |
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| WO2024120130A1 (en) | 2024-06-13 |
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