CN110993733A - Photovoltaic module manufacturing method - Google Patents
Photovoltaic module manufacturing method Download PDFInfo
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- CN110993733A CN110993733A CN201911229213.0A CN201911229213A CN110993733A CN 110993733 A CN110993733 A CN 110993733A CN 201911229213 A CN201911229213 A CN 201911229213A CN 110993733 A CN110993733 A CN 110993733A
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- welding
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- main grid
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 90
- 229910000679 solder Inorganic materials 0.000 claims abstract description 42
- 239000002390 adhesive tape Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 12
- 238000010030 laminating Methods 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- QKAJPFXKNNXMIZ-UHFFFAOYSA-N [Bi].[Ag].[Sn] Chemical compound [Bi].[Ag].[Sn] QKAJPFXKNNXMIZ-UHFFFAOYSA-N 0.000 claims description 6
- KHZAWAWPXXNLGB-UHFFFAOYSA-N [Bi].[Pb].[Sn] Chemical compound [Bi].[Pb].[Sn] KHZAWAWPXXNLGB-UHFFFAOYSA-N 0.000 claims description 6
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 239000011135 tin Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 238000005275 alloying Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 28
- 239000000463 material Substances 0.000 description 5
- 238000009432 framing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012858 packaging process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 1
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 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
- H01L31/18—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
-
- 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
- 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
- H01L31/0512—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 made of a particular material or composition of materials
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a manufacturing method of a photovoltaic module, which sequentially comprises the following working procedures: series welding, typesetting, laminating and testing; the series welding is divided into main-grid-free series welding and main-grid-battery series welding, and positive and negative electrodes of the battery piece are connected through a welding strip to form a series: series welding of a non-main grid battery: directly arranging the solder strips on the surfaces of the battery pieces in the series welding process, fixing the solder strips on the surfaces of the battery pieces by applying pressure, and sequentially arranging a low-temperature solder coating and an adhesive tape on one side of each solder strip, which is in contact with the battery pieces; series welding of the main grid battery: and directly fixing the welding strips on the positions of the front main grid and the back main grid of the cell in the series welding process. According to the invention, the pressure-sensitive adhesive layer is added on the low-temperature solder coating, so that the cell string can be assembled at normal temperature, the damage to the cell caused by high-temperature welding is avoided, and the melting point parameter of the low-temperature solder coating is lower than 175 ℃, so that the photovoltaic cell string is subjected to alloying interconnection in the laminating process.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic module packaging, manufacturing and application, in particular to a photovoltaic module manufacturing method.
Background
In the existing packaging process of the photovoltaic cell, a high-temperature welding strip (a substrate is copper and a coating is generally coated outside) is used between cells, and the interconnection between the cells and between cell strings is completed by adopting a high-temperature welding process.
However, the copper-based tin-lead welding strip used at present still has obvious defects to a certain extent, because the interconnection of the battery pieces needs high-temperature welding, on one hand, the battery pieces cannot be flaked, the high-temperature welding of the slices is easy to break, the process cost is high during packaging, and on the other hand, the interconnection process of the battery pieces is narrow in application range and is not suitable for large-scale use.
Disclosure of Invention
The invention aims to provide a photovoltaic module manufacturing method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a manufacturing method of a photovoltaic module sequentially comprises the following steps: series welding, typesetting, laminating and testing;
the series welding is divided into main-grid-free series welding and main-grid-battery series welding, and positive and negative electrodes of the battery piece are connected through a welding strip to form a series:
series welding of a non-main grid battery: directly arranging the solder strips on the surfaces of the battery pieces in the series welding process, fixing the solder strips on the surfaces of the battery pieces by applying pressure, and sequentially arranging a low-temperature solder coating and an adhesive tape on one side of each solder strip, which is in contact with the battery pieces;
series welding of the main grid battery: and in the series welding process, the welding strip is directly fixed to the positions of the front main grid and the back main grid of the battery piece, and a low-temperature solder coating and an adhesive tape are sequentially arranged on one side of the welding strip contacting the battery piece.
Preferably, the low-temperature solder coating is one of tin indium, tin lead bismuth and tin bismuth silver, and the melting point temperature of the low-temperature solder coating is lower than 175 ℃.
Preferably, the main-grid-free battery series welding can also adopt the following mode:
in the series welding process, the adhesive tapes are arranged on the battery piece at certain intervals, then the welding tapes are fixed on the surface of the battery piece and connected with the adhesive tapes, and the side, in contact with the adhesive tapes, of each welding tape is provided with a low-temperature solder coating.
Preferably, the adhesive tapes are arranged at intervals between the secondary grid lines of the cell pieces.
Preferably, the adhesive tape is provided as a pressure sensitive adhesive tape.
Preferably, the pressure sensitive adhesive tape is composed of a polymer and conductive particles, wherein the polymer is one of organic silicon, acrylic acid and synthetic rubber, and the conductive particles are one of gold, silver, copper, tin, nickel, indium tin, silver tin bismuth and bismuth tin lead.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the low-temperature solder coating is adopted, the pressure-sensitive adhesive is arranged outside the coating, the battery piece is assembled and strung through pressing at normal temperature, then the assembly packaging process link is adopted, the novel interconnection material and the battery piece grid line are completed to complete the metallization interconnection, and the interconnection among the battery pieces can be completed at normal temperature through the welding strip made of the interconnection material, so that the loss of high-temperature welding on the battery pieces is avoided, the battery piece is favorably flaked, the packaging process is realized, the cost is reduced, and the manufacturing method is more extensive when being applied to the interconnection process.
According to the invention, the pressure-sensitive adhesive layer is added on the low-temperature solder coating, so that the cell string can be assembled at normal temperature, the damage to the cell caused by high-temperature welding is avoided, and the melting point parameter of the low-temperature solder coating adopts the melting point of less than 175 ℃, so that the photovoltaic cell string is subjected to alloying interconnection in the lamination process, a new component interconnection mode is realized, the effect in the series welding process is better, and the series welding result is more stable.
Drawings
FIG. 1 is a block diagram of one of the series welding connections of the present invention to a masterless grid cell;
FIG. 2 is a schematic front view of the top view structure of FIG. 1;
FIG. 3 is a block diagram of another series welding connection for a non-main gate battery in accordance with the present invention;
FIG. 4 is a schematic front view of the top view structure of FIG. 3;
FIG. 5 is a top view of a series-welded connection for a cell with a main grid according to the present invention;
FIG. 6 is a schematic front view of the top view structure of FIG. 5;
FIG. 7 is a schematic diagram of a device manufacturing process according to the present invention.
In the figure: 1 solder strip, 2 battery pieces, 3 low-temperature solder coatings, 4 adhesive tapes, 5 auxiliary grid lines and 6 main grid lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution:
a manufacturing method of a photovoltaic module sequentially comprises the following steps: series welding, typesetting, laminating, framing and testing;
wherein, the series welding is divided into the series welding without the main grid battery and the series welding with the main grid battery, and the positive and negative electrodes of the battery piece 2 are connected to form a series through the welding strip 1:
series welding of a non-main grid battery: as shown in the attached figure 1 of the specification, the solder strip 1 is directly arranged on the surface of the cell 2 in the series welding process, the solder strip 1 is fixed on the surface of the cell 2 by applying pressure, and the side, contacting the cell 2, of the solder strip 1 is sequentially provided with the low-temperature solder coating 3 and the adhesive tape 4.
Series welding of the main grid battery: the welding strip 1 is directly fixed on the positions of the front main grid and the back main grid of the cell 2 in the series welding process, and the side, contacting the cell 2, of the welding strip 1 is sequentially provided with the low-temperature solder coating 3 and the adhesive tape 4.
The low-temperature solder coating 3 is one of tin indium, tin lead bismuth and tin bismuth silver, and the melting point temperature of the low-temperature solder coating 3 is lower than 175 ℃.
As another manufacturing method of the non-main gate battery in the series welding process, the non-main gate battery series welding can also adopt the following method: in the series welding process, firstly, the adhesive tapes 4 are arranged on the battery piece 2 at certain intervals, the adhesive tapes 4 are arranged between the secondary grid lines 5 of the battery piece 1 at intervals, as shown in the attached figure 3 of the specification, then the welding strip 1 is fixed on the surface of the battery piece 2 and connected with the adhesive tapes 4, and the side, in contact with the adhesive tapes 4, of the welding strip 1 is provided with the low-temperature solder coating 3.
The adhesive tape 4 is a pressure-sensitive adhesive tape which is composed of a polymer and conductive particles, wherein the polymer is one of organic silicon, acrylic acid and synthetic rubber, and the conductive particles are one of gold, silver, copper, tin, nickel, indium tin, silver tin bismuth and tin lead bismuth.
In the specification, fig. 1 shows a manufacturing method of a photovoltaic module, as a non-main gate battery, a low-temperature solder coating 3 and an adhesive tape 4 are sequentially arranged on one side of a solder strip 1, which is in contact with a cell 2, and the solder strip 1 is directly and correspondingly arranged on the surface of the cell, so that the cells are connected in series.
In the specification and the attached drawing 3, another manufacturing method of a photovoltaic module is shown, as a non-main grid battery, a solder strip 1 only provided with a low-temperature solder coating 3 in the invention is adopted, firstly, adhesive tapes 4 are arranged on the surface of a battery piece 2 at intervals, the adhesive tapes 4 are arranged between the auxiliary grid lines 5, and then, the solder strip 1 without the adhesive tapes 4 is fixed on the adhesive tapes 4 to achieve the purpose of fixedly connecting with the battery piece 2.
In the specification and the attached fig. 5, there is shown another manufacturing method of a photovoltaic module, as a main grid cell, the solder strip 1 is directly fixed to the positions of the main grid lines 6 on the front surface and the main grid lines 6 on the back surface of the cell slice 2, and the solder strip 1 is connected with the main grid lines 6 between the side provided with the low-temperature solder coating 3 and the adhesive tape 4.
Example (b):
a manufacturing method of a photovoltaic module sequentially comprises the following steps: series welding, typesetting, laminating, framing and testing;
1. series welding: wherein, the series welding is divided into the series welding without the main grid battery and the series welding with the main grid battery, and the positive and negative electrodes of the battery piece 2 are connected to form a series through the welding strip 1:
series welding of a non-main grid battery: directly arranging the welding strips 1 with the pressure-sensitive adhesive on the surface of the cell 2 in the series welding process, and fixing the welding strips 1 made of the novel interconnection material on the surface of the cell 2 by applying pressure;
or, in the series welding process, firstly, the pressure-sensitive adhesive is arranged on the cell 2 at a certain interval, and then the welding strip 1 without the adhesive tape 4 is fixed on the surface of the cell 2 and connected with the pressure-sensitive adhesive;
series welding of the main grid battery: directly fixing a welding strip 1 with pressure-sensitive adhesive on the positions of a front main grid and a back main grid of a cell 2 in a series welding process, wherein the cell 2 can be an SHJ cell PERC single crystal cell, a polycrystalline cell and the like;
2. typesetting and laminating the battery strings;
3. laminating the laminated battery strings, wherein in the laminating process, due to the characteristic of low melting point of the low-temperature solder coating 3 in the novel interconnection material welding strip 1, the interconnection material welding strip 1 is alloyed with the auxiliary grid lines 5 or the main grid lines 6 of the battery pieces 2, and the electrical performance of the interconnection welding strip of the adhesive tape 4 is conducted;
4. and then framing the laminated piece, wherein the framing step is not needed for the frameless component, then testing is carried out, and finally the component is manufactured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A manufacturing method of a photovoltaic module is characterized by sequentially comprising the following working procedures: series welding, typesetting, laminating and testing;
wherein, the series welding is divided into the series welding without a main grid battery and the series welding with the main grid battery, and the positive and negative electrodes of the battery piece (2) are connected to form a series through the welding strip (1):
series welding of a non-main grid battery: directly arranging the welding strips (1) on the surfaces of the battery pieces (2) in the series welding process, fixing the welding strips (1) on the surfaces of the battery pieces (2) by applying pressure, and sequentially arranging a low-temperature solder coating (3) and an adhesive tape (4) on one side of the welding strips (1) contacting the battery pieces (2);
series welding of the main grid battery: in the series welding process, the welding strip (1) is directly fixed to the positions of the front main grid and the back main grid of the cell (2), and the side, contacting the cell (2), of the welding strip (1) is sequentially provided with a low-temperature solder coating (3) and an adhesive tape (4).
2. A method of manufacturing a photovoltaic module according to claim 1, wherein: the low-temperature solder coating (3) is one of tin indium, tin lead bismuth and tin bismuth silver, and the melting point temperature of the low-temperature solder coating (3) is lower than 175 ℃.
3. A method of manufacturing a photovoltaic module according to claim 1, wherein:
the main grid-free battery series welding can also adopt the following modes:
in the series welding process, the adhesive tapes (4) are arranged on the cell pieces (2) at certain intervals, then the welding strips (1) are fixed on the surfaces of the cell pieces (2) and connected with the adhesive tapes (4), and the contact sides of the welding strips (1) and the adhesive tapes (4) are provided with low-temperature solder coatings (3).
4. A method of manufacturing a photovoltaic module according to claim 3, wherein: the adhesive tapes (4) are arranged between the auxiliary grid lines (5) of the battery pieces (1) at intervals.
5. A method of manufacturing a photovoltaic module according to claim 1 or 4, characterized in that: the adhesive tape (4) is a pressure-sensitive adhesive tape.
6. The method of claim 5, wherein: the pressure-sensitive adhesive tape is composed of a polymer and conductive particles, wherein the polymer is one of organic silicon, acrylic acid and synthetic rubber, and the conductive particles are one of gold, silver, copper, tin, nickel, tin indium, tin bismuth silver and tin lead bismuth.
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| CN201911229213.0A CN110993733A (en) | 2019-12-04 | 2019-12-04 | Photovoltaic module manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911229213.0A CN110993733A (en) | 2019-12-04 | 2019-12-04 | Photovoltaic module manufacturing method |
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Cited By (19)
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| CN112226169A (en) * | 2020-09-25 | 2021-01-15 | 苏州赛伍应用技术股份有限公司 | Solder strip carrier film, preparation method thereof, solder strip composite body and battery piece composite body |
| CN112355428A (en) * | 2020-11-05 | 2021-02-12 | 苏州沃特维自动化系统有限公司 | Welding strip positioning method for series welding of photovoltaic cells |
| CN113066885A (en) * | 2021-03-18 | 2021-07-02 | 苏州沃特维自动化系统有限公司 | Series photovoltaic cell assembly and packaging method thereof |
| CN113178503A (en) * | 2021-04-23 | 2021-07-27 | 通威太阳能（合肥）有限公司 | Photovoltaic cell piece, welding strip fixing method, finished product assembly and preparation method thereof |
| CN114023841A (en) * | 2021-11-03 | 2022-02-08 | 东方日升新能源股份有限公司 | Connection method of solar cell string, solar cell module and preparation process thereof |
| WO2022033322A1 (en) * | 2020-08-10 | 2022-02-17 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
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| WO2022143109A1 (en) * | 2020-12-30 | 2022-07-07 | 东方日升新能源股份有限公司 | Packaging method for solar cell module, connection method for solar cell string, solar cell module, and preparation method therefor |
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| CN115207138A (en) * | 2021-04-13 | 2022-10-18 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module, battery string and manufacturing method thereof |
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| CN115295655A (en) * | 2022-10-08 | 2022-11-04 | 浙江制能科技有限公司 | IBC battery pack and manufacturing method thereof |
| CN115295653A (en) * | 2022-10-08 | 2022-11-04 | 浙江制能科技有限公司 | Battery and welding strip connecting structure and battery assembly thereof |
| CN115295656A (en) * | 2022-10-08 | 2022-11-04 | 浙江制能科技有限公司 | Manufacturing method of battery assembly |
| WO2023016582A1 (en) * | 2021-08-13 | 2023-02-16 | 中能创光电科技(常州)有限公司 | Photovoltaic cell string and manufacturing method therefor, string soldering device, and photovoltaic assembly |
| CN117637890A (en) * | 2023-11-28 | 2024-03-01 | 江苏海博瑞光伏科技有限公司 | Main gate-free assembly and preparation method thereof |
| CN115207138B (en) * | 2021-04-13 | 2024-04-26 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module, battery string and manufacturing method thereof |
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| CN113178503A (en) * | 2021-04-23 | 2021-07-27 | 通威太阳能（合肥）有限公司 | Photovoltaic cell piece, welding strip fixing method, finished product assembly and preparation method thereof |
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