CN106129162A - A kind of solar battery sheet and assembly and preparation technology thereof - Google Patents
A kind of solar battery sheet and assembly and preparation technology thereof Download PDFInfo
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- CN106129162A CN106129162A CN201610617547.5A CN201610617547A CN106129162A CN 106129162 A CN106129162 A CN 106129162A CN 201610617547 A CN201610617547 A CN 201610617547A CN 106129162 A CN106129162 A CN 106129162A
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- solar battery
- battery sheet
- gate line
- main gate
- back electrode
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- 238000005516 engineering process Methods 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title claims description 9
- 238000003466 welding Methods 0.000 claims abstract description 36
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000006071 cream Substances 0.000 claims abstract description 27
- 238000013461 design Methods 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000007639 printing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 8
- 238000003475 lamination Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 11
- 229910021419 crystalline silicon Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 101100008048 Caenorhabditis elegans cut-4 gene Proteins 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 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
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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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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- 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
- H01L31/0516—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 specially adapted for interconnection of back-contact solar cells
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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
- H01L31/02—Details
- H01L31/0224—Electrodes
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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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
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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
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
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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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/036—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes
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- 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
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- 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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- 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
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Abstract
The invention discloses a kind of solar battery sheet, it uses new printed pattern, the main gate line of the most described solar battery sheet and the back electrode at its back side are crisscross arranged, main gate line before replacement and the design of back electrode location overlap in the same plane, also disclose this kind of solar battery sheet composition assembly simultaneously, the mode using stacking and welding connects, use the design of the present invention, first, the solaode section obtained after this kind of solar battery sheet cutting is applied to lamination design, form new solar module, secondly, for from material, tin cream is used to instead of welding or busbar, greatly reduce cost, moreover, it is attached by the way of stacking, greatly reduce electricity loss, improve the generating efficiency that assembly is overall.
Description
Technical field
The present invention relates to a kind of solaode chip module, particularly a kind of solar battery sheet and assembly and preparation work thereof
Skill.
Background technology
World today's energy shortage, the exploitation of clean energy resource this for solar energy have become as countries in the world and utilize
The big event of new forms of energy, and the generating efficiency how improving solar battery sheet is the weight of each big photovoltaic Corporation R & D work
Point, current new technique solaode, such as PERC battery, HIT battery, MWT battery etc. in each enterprise research and development test or
Person's small lot batch manufacture.
The production of assembly at present all uses welding and busbar to be attached the solar battery sheet of its inside, such as one
The wedge shape welding rod (ZL201210106034XCN) that crystal silicon solar energy battery connects, a kind of crystal-silicon solar cell connects to be used
Wedge shape welding rod, it is characterised in that it includes welding rod wedge-shaped segment and welding rod section, and described welding rod wedge-shaped segment and welding rod section are connected to
Together, the front face of welding rod wedge-shaped segment and crystalline silicon solar cell piece and welding together, welding rod section and the crystalline silicon sun
The rear-face contact of cell piece and welding together.Adopt cell piece the most excellent for optical property in this way, its system electricity
Learn loss the highest, the most sufficiently utilize existing solar battery sheet or the electric property of new technique cell piece, reduce height
Effect cell piece is in the electrical losses of assembly end, the problem of the most each photovoltaic business research, novel printing proposed by the invention
Graphic designs, can effectively solve problems.
Summary of the invention
Goal of the invention: for crystal silicon solar batteries, its energy gap is constant, after cut, every in theory
The voltage of cell piece is constant, and electric current diminishes, then by after the cell piece series connection after these cuttings, due to the cell piece electric current after cutting
Less than galvanic element sheet electric current so that the electricity loss that assembly end seal dress causes reduces.Present invention aims to solar energy
Cell piece, including monocrystalline, polycrystalline or quasi-single crystal battery, the highest electrical parameter, high performance solaode, it is provided that one
Kind can be used for post laser cutting, and use tin cream to be set by the silk screen printing figure that the cell piece stacking after cutting produces assembly
Meter, can promote more than at least 2% the most excellent to solve prior art optics performance cell piece, its system by the relative power of assembly
The problem that electricity loss is the highest.
And this invention, the probe system that the IV of solar battery sheet only need to test equipment carries out less transformation, right
The change of production line for manufacturing battery is little, and does not increases the production cost of battery-end, for a kind of easy realization, the novel battery of low cost.
Technical scheme: the present invention adopts the following technical scheme that
A kind of solar battery sheet, the main gate line of described solar battery sheet and the back electrode at its back side are crisscross arranged, and take
Main gate line before instead of and the design of back electrode location overlap in the same plane.
As optimization, described solar battery sheet is divided into some solaodes by laser cut line and cuts into slices, described often
The most at least a main gate line and a back electrode in the section of individual solaode, main gate line is parallel near solaode section
In the side in laser cut line direction, back electrode is parallel to the opposite side in laser cut line direction near solaode section.
As optimization, the main gate line in the section of described each solaode is near the same side.
As optimization, in addition to the main gate line near solar battery sheet frame, described main gate line and laser cut line are
Short lines distance is less than 0.8mm.
As optimization, in addition to the back electrode near solar battery sheet frame, described back electrode and laser cut line are
Short lines distance is less than 0.8mm.
As optimization, near main gate line and the solar battery sheet being parallel to main gate line direction of solar battery sheet frame
Short lines distance between frame is less than 0.8mm.
As optimization, near back electrode and the solar battery sheet being parallel to back electrode direction of solar battery sheet frame
Short lines distance between frame is less than 0.8mm.
As optimization, the width of described main gate line is less than 1mm.
As optimization, the width of described back electrode is less than 1mm.
A kind of solar module using solar battery sheet, including at least two pieces of solaode sections, described
The back electrode of upper a piece of solaode section and under the main gate line of a piece of solaode section recline, and in the place of reclining coating
Tin cream is attached.
As optimization, described tin cream thickness is 0.15～0.5mm.
The preparation technology of a kind of solar module using solar battery sheet, comprises the following steps:
1) solar battery sheet is produced；
2) laser cut line delimited, according to position printing solar cell sheet main gate line and the back electrode of laser cut line,
Ensure that main gate line and back electrode are crisscross arranged；
3) according to the position of laser cut line, solar battery sheet is carried out cut；
4) after cut completes, solar battery sheet is carried out sliver operation, be allowed to the solar-electricity being divided into one by one
Cut into slices in pond；
5) by solaode section stacked on top one by one and solar module is connected into by tin cream.
As optimization, tin cream can be in step 2) printing solar cell sheet main gate line and back electrode while carry out,
Can also step 4 again) terminate after carry out tin cream coating.
As optimization, solaode section stacked on top also by welding or can add after junction coating tin cream
The mode that heat cools down again is attached solidification.
Operation principle: the design of this printed pattern is different from existing conventional cell designs, in order to ensure the battery after cutting
The stackable welding of sheet uses, and the main gate line of its solaode section and back electrode are not at upper-lower overlapping position, but hand over
Wrong design.So, after laser cuts along parallel positive and negative electrode position, the technology such as printing, spraying can be used, by tin cream
It is applied to the main gate line of cell piece and the place that reclines of back electrode, further according to the row of solaode section in assembly after coating tin cream
After version requires to carry out typesetting, finally use Infrared Heating or the mode of Hot-blast Heating, solaode section is welded
Connect.
After laser cuts along parallel positive and negative electrode position, the technology such as printing, spraying can be used, by solder paste coating
To main gate line and the place that reclines of back electrode of cell piece, want further according to the typesetting of solaode section in assembly after coating tin cream
Ask after carrying out typesetting, finally use Infrared Heating or the mode of Hot-blast Heating, solaode section is welded to connect,
Form assembly.
Beneficial effect: the present invention compared with prior art:
1, the most traditional assembly manufacture uses welding and busbar to be attached the solar battery sheet of its inside
Mode, this mode is for the most excellent cell piece of optical property, and the loss of its system electricity is the highest.And the thinking of the present invention is design
A kind of solar battery sheet silk screen printing figure that can be used for cut, and the cell piece after cutting is used tin cream heap stitch welding
Connect, reduce the electric current of monolithic battery sheet so that the electricity loss of component system reduces.In theory, by the design by cell piece
After cutting 4, the encapsulation loss of assembly can relative reduction 85%-93%.
2 and in order to reach this kind of effect, the application uses the back of the body electricity at the main gate line of solar battery sheet and its back side
Pole is crisscross arranged, the main gate line before replacement and the design of back electrode location overlap in the same plane so that it is on carrying out
The minimizing shading surface can tried one's best during lower stack design, improves the generating efficiency of battery.
3, the front shading-area of current ordinary silicon base battery is about 7%, the welding of the present invention follow-up employing solder(ing) paste
Mode, therefore the width of electrode is smaller than current conventional batteries sheet, current conventional design is 1～1.4mm, and the design is for being less than
1mm, anelectrode area reduces 30%～40% relatively, so can reduce cell piece front main grid and bring shading to lose, raising group
The output of part；
4, in general components, battery blade spacing is usually 2～3mm, and uses the mode of stacking to carry out in the application
Assembly connects and can the spacing of 2～3mm be omitted, and as a example by 60 cell piece sections, connects with 6 cell piece sections, 10
Cell piece assembly, as a solar battery cell, uses the present processes, can greatly reduce solar cell blade unit
Area occupied, if identical area, then uses the design of 60, it is possible to cut by 2.5 cell pieces of the many layings of the application
Sheet, increases cell piece unit generated output, and each producer passes through experimental demonstration, by the typesetting of different assemblies to reduce cell piece
Spacing can make assembly output promote more than 2%, the components welding of the design cell piece is heap stitch welding, effectively subtracts
Lack the spacing of monolithic battery sheet in general components, improve transformation efficiency and the power of assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation in solar battery sheet front of the present invention；
Fig. 2 is the structural representation in solar cell back face of the present invention；
Fig. 3 is the close-up schematic view of solar battery sheet main gate line of the present invention and laser cut line part；
Fig. 4 is the solar module structural representation of prior art；
Fig. 5 is the solar module structural representation of the present invention；
Fig. 6 is the design sketch after the solar module connection of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, as shown in accompanying drawing 1 to accompanying drawing 6:
Embodiment 1
A kind of solar battery sheet using new printed pattern, the main gate line 2 of described solar battery sheet 1 and its back side
Back electrode 3 is crisscross arranged, the main gate line 2 before replacement and the design of back electrode 3 location overlap in the same plane.
Described solar battery sheet is divided into some solaodes section 5, described each solar energy by laser cut line 4
The most at least a main gate line 2 and a back electrode 3 in battery section 5, main gate line 2 is parallel near solaode section 5
The side in laser cut line 4 direction, back electrode 3 is parallel to another of laser cut line 4 direction near solaode section 5
Side.
Main gate line 2 in described each solaode section 5 is near the same side.
In addition to the main gate line 2 near solar battery sheet 1 frame, described main gate line 2 and the short lines of laser cut line 4
Distance is 0.8mm.
In addition to the back electrode 3 near solar battery sheet 1 frame, described back electrode 3 and the short lines of laser cut line 4
Distance is 0.8mm.
Main gate line 2 and solar battery sheet 1 frame being parallel to main gate line 2 direction near solar battery sheet 1 frame
Between short lines distance be 0.8mm.
Back electrode 3 and solar battery sheet 1 frame being parallel to back electrode 3 direction near solar battery sheet 1 frame
Between short lines distance be 0.8mm.
The width of described main gate line 2 is 1mm.
The width of described back electrode 3 is 1mm.
Embodiment 2
A kind of solar battery sheet 1 using new printed pattern, the main gate line 2 of described solar battery sheet 1 and its back side
Back electrode 3 be crisscross arranged, the main gate line 2 before replacement and the design of back electrode 3 location overlap in the same plane.
Described solar battery sheet 1 is divided into some solaodes section 5, described each sun by laser cut line 4
Can the most at least a main gate line 2 and a back electrode 3 in battery section 5, main gate line 2 is cut into slices 5 parallel near solaode
In the side in laser cut line 4 direction, back electrode 3 is parallel to another of laser cut line 4 direction near solaode section 5
Side.
Main gate line 2 in described each solaode section 5 is near the same side.
In addition to the main gate line 2 near solar battery sheet 1 frame, described main gate line 2 and the short lines of laser cut line 4
Distance is 0.1mm.
In addition to the back electrode 3 near solar battery sheet 1 frame, described back electrode 3 and the short lines of laser cut line 4
Distance is 0.1mm.
Main gate line 2 and solar battery sheet 1 frame being parallel to main gate line 2 direction near solar battery sheet 1 frame
Between short lines distance be 0.1mm.
Back electrode 3 and solar battery sheet 1 frame being parallel to back electrode 3 direction near solar battery sheet 1 frame
Between short lines distance be 0.1mm.
The width of described main gate line 2 is 0.1mm.
The width of described back electrode 3 is 0.1mm.
Although there being discussion to put in place less than 0.8mm and 1mm in Xian Dinging, but actually above being certain to allow some leeway, after all
Laser has region, so place's citing 0.1mm, naturally it is also possible to use 0.05mm or 0.01mm.
The design of this printed pattern is different from existing conventional cell designs, in order to ensure the stackable weldering of cell piece after cutting
Connecing use, the front electrode of its cell piece and backplate are not at upper-lower overlapping position, but staggered designs.So, exist
After laser cuts along parallel positive and negative electrode position, the technology such as printing, spraying can be used, solder paste coating is arrived cell piece
On the electrode at front or the back side, after requiring to carry out typesetting further according to the typesetting of cell piece in assembly after coating tin cream, finally adopt
By Infrared Heating or the mode of Hot-blast Heating, cell piece is welded to connect.
Embodiment 3
As a example by solar battery sheet laser scribing is divided into 4 solaode sections,
A kind of solar battery sheet 1 using new printed pattern, the main gate line 2 of described solar battery sheet and its back side
Back electrode 3 is crisscross arranged, the main gate line 2 before replacement and the design of back electrode 3 location overlap in the same plane.
Described solar battery sheet 1 is divided into 4 solaodes by 3 laser cut line and cuts into slices, described each sun
Can the most at least a main gate line 2 and a back electrode 3 in battery section 5, main gate line 2 is cut into slices 5 parallel near solaode
In the side in laser cut line 4 direction, back electrode 3 is parallel to another of laser cut line 4 direction near solaode section 5
Side.
Main gate line 2 in described each solaode section 5 is near the same side.
The main gate line 2 setting near the same side may be used without following manner and substitutes: the master in described solaode section 5
Grid line 2 is drawn close to centre position, and the main gate line 2 of each solaode section 5 is cut near solar battery sheet 1 central laser
Line 4 is also parallel to laser cut line 4, and back electrode 3 is away from solaode 1 central laser line of cut 4 side and is parallel to laser
Line of cut 4.
In addition to the main gate line 2 near solar battery sheet 1 frame, described main gate line 2 and the short lines of laser cut line 4
Distance is 0.45mm.
In addition to the back electrode 3 near solar battery sheet 1 frame, described back electrode 3 and the short lines of laser cut line 4
Distance is 0.45mm.
Main gate line 2 and solar battery sheet 1 frame being parallel to main gate line 2 direction near solar battery sheet 1 frame
Between short lines distance be 0.45mm.
Back electrode 3 and solar battery sheet 1 frame being parallel to back electrode 3 direction near solar battery sheet 1 frame
Between short lines distance be 0.45mm.
The width of described main gate line 2 is 0.2mm.
The width of described back electrode 3 is 0.5mm.
Main gate line 2 this employing design continuously, can use segment design according to actual needs；Back electrode is the same.
The thickness of main gate line 2 and back electrode 3 requires to print according to the general technology of current battery sheet silk screen printing, nothing
Particular/special requirement, the most general print thickness is 12～25um.
Laser cut line 4 width is 0.1～1.6mm.
Laser cut line 4 has cut the recess width of rear cell piece can produce the difference of size according to the size of laser facula
Different, but not over the twice of line of cut width；
The adjacent distance between two main gate line 2 is the width of every a piece of solaode section.
Comparative example 1
The wedge shape welding rod that a kind of crystal-silicon solar cell connects, it is characterised in that it includes welding rod wedge-shaped segment and weldering
Bar section, described welding rod wedge-shaped segment and welding rod section link together, the front face of welding rod wedge-shaped segment and crystalline silicon solar cell piece
And weld together, the rear-face contact of welding rod section and crystalline silicon solar cell piece and welding together.
Adopting cell piece the most excellent for optical property in this way, the loss of its system electricity is the highest.
Embodiment 4
A kind of solar module using lamination to design, including at least two pieces of solaodes section 5, described upper one
The back electrode 3 of sheet solaode section 5 and under the main gate line 2 of a piece of solaode section 5 recline, and in the place of reclining coating
Tin cream 6 is attached.
Back electrode 3 and main gate line 2 in described each solaode section 5 are crisscross arranged.
Back electrode 3 in described each solaode section 5 is near the side of solaode section 5, and main gate line 2
Opposite side near solaode section 5.
Back electrode 3 and main gate line 2 in described each solaode section 5 are parallel to solaode section 5 edge
The short lines distance of the frame in main gate line 2 direction is less than 0.8mm.
Described tin cream 6 thickness is 0.15～0.5mm.
After laser cuts along parallel positive and negative electrode position, the technology such as printing, spraying can be used, tin cream 6 is coated with
To main gate line 2 and the place that reclines of back electrode 3 of solaode section 5, after coating tin cream 6, cut electricity further according to solar energy in assembly
After the typesetting of pond sheet 5 requires to carry out typesetting, finally use Infrared Heating or the mode of Hot-blast Heating, solaode is cut into slices
5 are welded to connect, and form assembly.
Comparative example 2
The wedge shape welding rod that a kind of crystal-silicon solar cell connects, it includes welding rod wedge-shaped segment and welding rod section, described weldering
Bar wedge-shaped segment and welding rod section link together, the front face of welding rod wedge-shaped segment and crystalline silicon solar cell piece and be welded on
Rise, the rear-face contact of welding rod section and crystalline silicon solar cell piece and welding together.
By above-described embodiment 4 and comparative example 2 it can be seen that difference maximum between the present invention and comparative example is i.e.:
1, the mode of stacking is used between the solaode section of the application, by the typesetting of different assemblies to reduce
The spacing of cell piece can make the output of assembly promote more than 2%.
2, while the solaode section stacking of the application, the place's of reclining tin coating layer of paste need to realize even between section
Connect, therefore the width of electrode is smaller than current conventional batteries sheet, meanwhile, the back electrode in the section of each solaode and main grid
Line and solaode section edge are parallel to the short lines distance of the frame in main gate line direction less than 0.8mm.Use frame
If being 0, can effectively reduce shading-area, improve the output of assembly.
Embodiment 5
The preparation technology of a kind of solar module using solar battery sheet, comprises the following steps:
1) solar battery sheet 1 is produced；
2) laser cut line 4 delimited, according to position printing solar cell sheet main gate line 2 and the back of the body electricity of laser cut line 4
Pole 3, it is ensured that main gate line 2 and back electrode 3 are crisscross arranged；
3) according to the position of laser cut line 4, solar battery sheet 1 is carried out cut；
4) after cut completes, solar battery sheet is carried out sliver operation, be allowed to the solar-electricity being divided into one by one
Pond section 5；
5) solaode one by one is cut into slices 5 stacked on top connect into solar module by tin cream 6.
Tin cream 6 can be in step 2) printing solar cell sheet 1 main gate line 2 and back electrode 3 while carry out, it is also possible to
Step 4 again) terminate after carry out tin cream 6 and coat.
Solaode cut into slices 5 stacked on top and junction coating tin cream 6 after can by welding or heating the coldest
But mode is attached solidification.
The invention provides a kind of for solar battery sheet and assembly and preparation technology, implement this technical scheme
Method and approach a lot, the above is only the preferred embodiment of the present invention, it is noted that general for the art
For logical technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improve and
Retouching also should be regarded as protection scope of the present invention, and each ingredient the clearest and the most definite in the present embodiment all can use prior art in addition real
Existing.
Claims (13)
1. a solar battery sheet, it is characterised in that: the back electrode at the main gate line of described solar battery sheet and its back side is handed over
Wrong setting, the main gate line before replacement and the design of back electrode location overlap in the same plane.
Solar battery sheet the most according to claim 1, it is characterised in that: described solar battery sheet is by laser cut line
Being divided into the section of some solaodes, in the section of described each solaode, the most at least a main gate line and a back of the body are electric
Pole, main gate line is parallel to the side in laser cut line direction near solaode section, and back electrode is cut near solaode
Sheet is parallel to the opposite side in laser cut line direction.
Solar battery sheet the most according to claim 2, it is characterised in that: the master in the section of described each solaode
Grid line is near the same side.
Solar battery sheet the most according to claim 1, it is characterised in that: except the main grid near solar battery sheet frame
Outside line, the short lines distance of described main gate line and laser cut line is less than 0.8mm.
Solar battery sheet the most according to claim 1, it is characterised in that: except the back of the body electricity near solar battery sheet frame
Outside extremely, the short lines distance of described back electrode and laser cut line is less than 0.8mm.
Solar battery sheet the most according to claim 1, it is characterised in that: near the main gate line of solar battery sheet frame
And the short lines distance being parallel between the solar battery sheet frame in main gate line direction is less than 0.8mm.
Solar battery sheet the most according to claim 1, it is characterised in that: near the back electrode of solar battery sheet frame
And the short lines distance being parallel between the solar battery sheet frame in back electrode direction is less than 0.8mm.
Solar battery sheet the most according to claim 1, it is characterised in that: the width of described main gate line and back electrode is the most not
More than 1mm.
9. use a solar module for solar battery sheet as claimed in claim 1, including at least two pieces of sun
Can battery section, it is characterised in that: described a piece of solaode section back electrode and under a piece of solaode section
Main gate line recline, and the place of reclining coating tin cream be attached.
Solar module the most according to claim 9, it is characterised in that: described tin cream thickness be 0.15～
0.5mm。
The preparation technology of 11. 1 kinds of solar modules as claimed in claim 9, it is characterised in that: comprise the following steps:
1) solar battery sheet is produced；
2) laser cut line delimited, according to position printing solar cell sheet main gate line and the back electrode of laser cut line, it is ensured that
Main gate line and back electrode are crisscross arranged；
3) according to the position of laser cut line, solar battery sheet is carried out cut；
4) after cut completes, solar battery sheet is carried out sliver operation, be allowed to be divided into solaode one by one to cut
Sheet；
5) by solaode section stacked on top one by one and solar module is connected into by tin cream.
The preparation technology of 12. solar modules according to claim 11, it is characterised in that: tin cream can be in step
2) carry out while printing solar cell sheet main gate line and back electrode, it is also possible to step 4 again) terminate after carry out tin cream painting
Cover.
The preparation technology of 13. solar modules according to claim 11, it is characterised in that: solaode is cut into slices
Stacked on top also can be attached solidification after junction coating tin cream by the way of welding or heating cool down again.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617547.5A CN106129162A (en) | 2016-07-29 | 2016-07-29 | A kind of solar battery sheet and assembly and preparation technology thereof |
| PCT/CN2017/078348 WO2018018908A1 (en) | 2016-07-29 | 2017-03-28 | Solar battery cell and assembly, and preparation process therefor |
| KR1020197002982A KR20190029625A (en) | 2016-07-29 | 2017-03-28 | A kind of solar cell and component and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617547.5A CN106129162A (en) | 2016-07-29 | 2016-07-29 | A kind of solar battery sheet and assembly and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106129162A true CN106129162A (en) | 2016-11-16 |
Family
ID=57255118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610617547.5A Pending CN106129162A (en) | 2016-07-29 | 2016-07-29 | A kind of solar battery sheet and assembly and preparation technology thereof |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20190029625A (en) |
| CN (1) | CN106129162A (en) |
| WO (1) | WO2018018908A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20190029625A (en) | 2019-03-20 |
| WO2018018908A1 (en) | 2018-02-01 |
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