CN106129161A - A kind of solar module - Google Patents
A kind of solar module Download PDFInfo
- Publication number
- CN106129161A CN106129161A CN201610089428.7A CN201610089428A CN106129161A CN 106129161 A CN106129161 A CN 106129161A CN 201610089428 A CN201610089428 A CN 201610089428A CN 106129161 A CN106129161 A CN 106129161A
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- China
- Prior art keywords
- solar battery
- battery sheet
- conductive strips
- solar
- width
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 239000004332 silver Substances 0.000 abstract description 6
- 239000002002 slurry Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 38
- 229910045601 alloy Inorganic materials 0.000 description 20
- 239000000956 alloy Substances 0.000 description 20
- 230000000875 corresponding effect Effects 0.000 description 8
- 239000011241 protective layer Substances 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 229910001074 Lay pewter Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910001174 tin-lead alloy Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a kind of solar module, including at least 1 solaode string, described solaode string is in series by conductive strips by multiple solar battery sheets；Described solar battery sheet length L along conductive strips series connection direction is less than or equal to 10 cm；The overall width W of the conductive strips used on each solar battery sheet described accounts for the 0.1% ~ 3% of this solar battery sheet width D；And the ratio of length L of the solar battery sheet that the overall width W of described conductive strips is corresponding thereto is D:8000 mm ~ D:3000 mm.Perfect coordination of the present invention conductive strips shading loss and the contradiction of resistance loss, realize the maximization of output, reduce silver slurry consumption, the conductive strips consumption of assembly and the conducting resinl consumption of cell piece simultaneously, reduce the production cost of assembly, achieve beyond thought technique effect.
Description
Technical field
The present invention relates to area of solar cell, be specifically related to a kind of solar module.
Background technology
Conventional Fossil fuel is the most depleted, and in all of sustainable energy, it is the most clear that solar energy is undoubtedly one
Clean, the most universal and most potential alternative energy source.Photovoltaic generation is one of generation technology of most sustainable development desired characteristics.
At present, in all of solaode, silicon solar cell is one of solaode obtaining business promotion on a large scale, this
It is that other kinds of solar-electricity compared by silicon solar cell simultaneously owing to silicon materials have extremely abundant reserves in the earth's crust
, there are electric property and the mechanical performance of excellence in pond.In the development of following photovoltaic technology, along with silicon solar cell photo electric
The further raising of energy, the further reduction of silicon materials price, silicon solar cell will occupy consequence at photovoltaic art.
In prior art, the solar module being made up of cell piece generally comprise by encapsulating structure encapsulate multiple
Solaode string, solaode string is in series by multiple solar battery sheets.Solar battery sheet is provided with at least 2
Main gate line, during adjacent 2 cell pieces series connection, is electrically connected by welding.The quantity of welding is identical with the quantity of main gate line.Mesh
Before, row welding commonly used in the trade is all in flat bar shaped.Welding overall width accounts for solar battery sheet width and is typically larger than 3%.With
In the market as a example by 4 main grid assemblies of main flow, the width of cell piece is 156mm, and the width of welding is 1.2mm width, 4 root bead bands
Overall width be 4.8mm width, then welding overall width accounts for the width of solar battery sheet is 4.8/156=3.08%.In order to realize
Welding between welding and cell piece, cell piece must expend a number of silver slurry and print the main gate line of respective width.
It addition, use the welding of such width, welding weight required on every assembly is the most heavier, the cost of welding on every assembly
The biggest.Again, being radiated at the light on these areas blocked by welding, major part all can not be absorbed by solar battery sheet
Utilize, thus decrease the photoelectric transformation efficiency of solar module.But, if reducing the width of welding, then due to weldering
The cross-sectional area of band reduces thus causes the resistive power loss of welding to be greatly improved, and can reduce solar module equally
Photoelectric transformation efficiency.One how is used to design dexterously, it is possible to the consumption that reduces on cell piece on silver slurry and assembly upper
Conductive strips consumption, increase the photoelectric transformation efficiency of assembly simultaneously, be one of the technological difficulties of this area.
Summary of the invention
It is an object of the invention to provide a kind of solar module.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of solar module, including at least
1 solaode string, described solaode string is in series by conductive strips by multiple solar battery sheets；
Described solar battery sheet length L along conductive strips series connection direction is less than or equal to 10cm；
The overall width W of the conductive strips used on each solar battery sheet described and this solar battery sheet width D
Ratio is 0.1%～3%；
And the ratio of length L of the solar battery sheet that the overall width W of described conductive strips is corresponding thereto be D:8000mm～
D:3000mm.
Solar module includes multiple solaode string, and these solaode strings can use tandem junction
Structure, it would however also be possible to employ series connection and mixed structure in parallel, the structure of series connection after first the most in parallel after series connection or first parallel connection.
Described D:8000mm～D:3000mm, D refer to the width of solar battery sheet, and unit is mm.The feature of the present invention
Being the solar battery sheet that have employed length L less than or equal to 10cm, this solar battery sheet can be to be less than or equal to by length
The silicon chip of 10cm is directly prepared into, it is also possible to be the normal full wafer cell piece by slice process cutting, it is also possible to be to have
The full wafer solar battery sheet of flaw is by remaining normal solar battery sheet after slice process removal flaw part.
The ratio of length L of the overall width W of described conductive strips solar battery sheet corresponding thereto is D:8000mm～D:
3000mm；Here " solar battery sheet corresponding thereto " refers to the cell piece at conductive strips place；That is: single solar-electricity
On the sheet of pond, the overall width of conductive strips that it uses and the length ratio of cell piece are D:8000mm～D:3000mm.
Preferably, described solar battery sheet along conductive strips series connection direction along a length of 0.5～10cm.
Preferably, described solar battery sheet along conductive strips series connection direction along a length of 3～9cm.
In technique scheme, the overall width W of the conductive strips that each solar battery sheet described is used and this sun
The ratio of energy cell piece width D is 0.1%～2%.Further, the conductive strips each solar battery sheet described used
The ratio of overall width W and this solar battery sheet width D be 0.5%～2%, this ratio is optimum design proportion, but
Under such design, the width of conductive strips can be narrow, can increase the difficulty of volume production.
In technique scheme, the overall width W of the conductive strips that each solar battery sheet described is used and this sun
The ratio of energy cell piece width D is less than 3% more than 2%.Although this ratio not up to optimal design effect, but volume production realizes completely
Have no problem.
In technique scheme, described conductive strips have referred to the metal tape of electric action.The shape of metal tape can be normal
One in the flat seen, the textured flat of single or double band, circle, arch, ellipse, polygon, i.e. described
Metal tape is not limited by shape.
In a kind of embodiment of technique scheme, the cross section of described conductive strips is rectangle, its thickness be 0.05～
0.3mm。
In the another embodiment of technique scheme, the cross section of described conductive strips is circular or arch, its diameter
It is 0.1～0.4mm.
Above, described conductive strips are the metal tape with metal coating or metal alloy coating.This metal alloy coating
Being divided three classes, high temperature solder alloy, low temperature melt alloy and protective layer alloy.
Described high temperature solder alloy refer to melt at a temperature of normal welding and pass through welding realize electrical connection metal or
Alloy, such as: leypewter, sn-ag alloy etc..
Described low temperature melt alloy refer to melt at a temperature of 100～200 degrees Celsius and realize electrical connection metal or
Alloy, such as melts and electrically connects the indium stannum alloy etc. of cell piece and conductive strips under laminating temperature.
Described protective layer alloy refers to only shield conductive strips, and can not realize electrical connection by this protective layer
Metal or alloy, such as silver alloy or other have protection the not oxidized corrosion of metal tape protective layer.
Wherein, the classification of above-mentioned alloy coat is also not limited to one, such as: according to the difference of alloy layer thickness, tin-lead
Alloy can be classified as high temperature solder alloy or protective layer alloy, it is possible to the leypewter reaching throat thickness belongs to high-temperature soldering conjunction
Gold, it is impossible to the leypewter reaching throat thickness belongs to protective layer alloy.
Certainly, described conductive strips can also use the metal tape without metal alloy coating.
Described solar battery sheet is the solar battery sheet having main gate line, and on it, the quantity of main gate line is 2～20.
In technique scheme, described solar battery sheet is formed by complete solar battery sheet cutting.
In a kind of embodiment of technique scheme, described solar battery sheet by complete solar battery sheet according to
The half solar battery sheet of the section ratio cutting of 1/2.As a example by the conventional batteries sheet of 156 × 156mm, according to 1/2
Section ratio, obtain the solar battery sheet of 156 × 78mm.
Described in the second embodiment of technique scheme, solar battery sheet is pressed by complete solar battery sheet
1/3 solar battery sheet that section ratio according to 1/3 is cut.
In the third embodiment of technique scheme, use by complete solar battery sheet according to 1/4 section
1/4 solar battery sheet of ratio cutting.Existing conventional solar battery sheet is usually 156 × 156mm, cuts
After sheet, i.e. can get the length cell piece less than or equal to 10cm, its width is still 156mm.
Preferably, the width of the conductive strips described solar battery sheet used is the most identical.
Technique scheme is to use to have main grid cell piece to add conductive strips；Here conductive strips can be with high-temperature soldering
The welding of tin coating metal on the metal tape of alloy coat, such as Copper base material, real with cell piece by welding or conducting resinl
Now electrically connect；Above-mentioned band protective layer alloy coat or not coated piece of metal tape can also be used, by conducting resinl and battery
Sheet realizes electrical connection.
Corresponding another kind of technical scheme, a kind of solar module, including at least 1 solaode
String, described solaode string is in series by conductive strips by multiple solar battery sheets；
Described solar battery sheet is the solar battery sheet without main gate line, and described solar battery sheet is connected along conductive strips
Length L on direction is less than or equal to 10cm；
The overall width W of the conductive strips used on each solar battery sheet described accounts for this solar battery sheet width D
0.1%～3%；
And the ratio of length L of the solar battery sheet that the overall width W of described conductive strips is corresponding thereto be D:8000mm～
D:3000mm.
In technique scheme, described conductive strips are the metal tape with metal coating or metal alloy coating.
Technique scheme is the metal tape using dereliction grid cell sheet to add band coating, such as uses dereliction grid cell sheet to add
With high temperature solder alloy coating or the metal tape of protective layer alloy coat, and realize cell piece and metal tape by conducting resinl
Electrical connection；Dereliction grid cell sheet is used to add the metal tape melting alloy coat with low temperature, under laminating temperature for another example
Melt the electrical connection realizing cell piece and metal tape.
The principle of the present invention is: resistance power loss=A*A*B* (ρ/h) the * J of solar module conductive stripsmp/(m*
Vmp*WB), wherein: A is the length of cell piece, B is the half of two main grid spacing, and ρ is the body resistivity of conductive strips, and h is conduction
The thickness of band, JmpFor maximum functional point electric current density, m is a constant, VmpOn in a cell piece unit at maximum functional point
Voltage, WBHalf for conductive strips width.Shading power attenuation=the n*W of solar module conductive stripsB/ B, n are a table
Show the constant of conductive strips internal reflection ability.The optimum width of conductive strips should be resistance power loss and the shading power of conductive strips
Loss sum is to WBDerivation=0.Through deriving, it is rectangle or the flat conductive strips being approximately rectangle for cross section,
Good WB=A*B (ρ * Jmp/(h*m*n*Vmp))1/2.For circular or be approximately circular conductive strips, optimum diameter namely optimal
Width is WB=(4A2*B2*ρ*Jmp/(3π*m*n*Vmp))1/3.Therefore WB/ B is positively correlated with A, is i.e. used on solar battery sheet
The overall width W of conductive strips account for the ratio of this solar battery sheet width D and the length positive correlation of cell piece.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1. the present invention devises a kind of new solar module, by using the length solar energy less than or equal to 10cm
Cell piece, devises the conductive strips of rational width simultaneously, and defines conductive strips overall width and solaode leaf length
Ratio, perfect coordination conductive strips shading loss and the contradiction of resistance loss, it is achieved the maximization of output；Experiment proves:
Compared with existing full wafer solar battery sheet, on the premise of silicon chip consumption is identical, the shading loss of the present invention and resistance damage
Consumption is all substantially reduced, and the output of assembly is greatly promoted, and achieves beyond thought technique effect；
2. invention also saves the consumption of slurry and conductive strips, reduce cost, thus there is positive realistic meaning；
3. the present invention can well be applicable to existing technique, it is easy to preparation, cost is relatively low, is suitable to popularization and application；
4. in the way of the present invention can add the metal tape of band coating to use dereliction grid cell sheet, not only shading loss and electricity
Resistance loss is all substantially reduced, and the output of assembly is greatly promoted, and is also greatly reduced the consumption of conductive strips and conducting resinl, obtains
Beyond thought technique effect.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment one
A kind of solar module, including 1 solaode string, each solaode string is by 120 solar energys
Cell piece is in series by welding；
All being the same size of solar battery sheet in described solaode string, by complete solar battery sheet (156
× 156mm) according to 1/2 section ratio cut half solar battery sheet, i.e. 156 × 78mm；Solar battery sheet
It is provided with 4 main gate line；Article 4, the width of main gate line is 0.5mm；The overall width of main gate line accounts for this solar battery sheet width
1.28%；
Each solar battery sheet described is provided with the welding of 4 strips, and the width of 4 weldings is 0.6mm, thickness
H is 0.2mm；The overall width W of welding is that 2.4mm, W account for the 1.54% of this solar battery sheet width；W/D=L/5070mm.
Embodiment two
A kind of solar module, including 6 solaode strings, each solaode string is by 20 solar-electricity
Pond sheet is in series by welding, every two string solar battery sheets one parallel units of composition, has 3 parallel units, three
Parallel units is series arrangement；
All being the same size of solar battery sheet in described solaode string, by complete solar battery sheet (156
× 156mm) according to 1/2 section ratio cut half solar battery sheet, i.e. 156 × 78mm；Solar battery sheet
It is provided with 4 main gate line；Article 4, the width of main gate line is 0.8mm, and thickness h is 0.15mm；The overall width W of welding is 3.2mm, W
Account for the 2.05% of this solar battery sheet width；W/D=L/3803mm.
Embodiment three
A kind of solar module, including 1 solaode string, each solaode string is by 240 solar energys
Cell piece is in series by welding；
All being the same size of solar battery sheet in described solaode string, by complete solar battery sheet (156
× 156mm) according to 1/4 section ratio cut solar battery sheet, i.e. 156 × 39mm；Set on solar battery sheet
There are 4 main gate line；Article 4, the width of main gate line is 0.2mm；The overall width of main gate line accounts for this solar battery sheet width
1.28%；
Each solar battery sheet described is provided with the welding of 4 strips, and the width of 4 weldings is 0.3mm, thickness
H is 0.2mm；The overall width W of welding is that 1.2mm, W account for the 0.77% of this solar battery sheet width；W/D=L/5070mm.
Embodiment four
A kind of solar module, including 1 solaode string, each solaode string is by 240 solar energys
Cell piece is in series by welding；
All being the same size of solar battery sheet in described solaode string, by complete solar battery sheet (156
× 156mm) according to 1/4 section ratio cut solar battery sheet, i.e. 156 × 39mm；Set on solar battery sheet
There are 6 main gate line；Article 6, the width of main gate line is 0.2mm；The overall width of main gate line accounts for this solar battery sheet width
0.77%；
Each solar battery sheet described is provided with 6 circular weldings, and the diameter of 6 weldings is 0.28mm；Welding
Overall width W be that 1.68mm, W account for the 1.08% of this solar battery sheet width；W/D=L/3621mm.
Embodiment five
A kind of solar module, including 1 solaode string, each solaode string is by 120 solar energys
Cell piece is in series by conductive strips；
All being the same size of solar battery sheet in described solaode string, by complete solar battery sheet (156
× 156mm) according to 1/2 section ratio cut half solar battery sheet, i.e. 156 × 78mm；
It is not provided with main gate line on described solar battery sheet；Two panels cell piece interconnects by 4 conductive strips；Conductive strips
Width is 0.8mm, and thickness h is 0.15mm, and the surface of conductive strips is coated with silver；Conductive strips and cell piece rely on conducting resinl to carry out electricity
Connect；
The overall width W of conductive strips is that 3.2mm, W account for the 2.05% of this solar battery sheet width；W/D=L/3803mm.
Comparative example one
A kind of solar module, including 1 solaode string, each solaode string is by 60 solar-electricity
Pond sheet is in series by welding；
All being the same size of solar battery sheet in described solaode string, uses complete solar battery sheet
(156×156mm)；
Solar battery sheet is provided with 4 main gate line；Article 4, the width of main gate line is 1.1mm；
Each solar battery sheet described is provided with 4 weldings, and it is 0.2mm that the width of 4 weldings is 1.2mm thickness h；
The overall width W of welding accounts for the 3.08% of this solar battery sheet width；
The ratio of length L of the overall width W of described welding solar battery sheet corresponding thereto is 1:32.5.
Comparative example two
A kind of solar module, including 1 solaode string, each solaode string is by 60 solar-electricity
Pond sheet is in series by conductive strips；
All being the same size of solar battery sheet in described solaode string, uses complete solar battery sheet
(156×156mm)；
It is not provided with main gate line on described solar battery sheet；Two panels cell piece interconnects by 4 conductive strips；Conductive strips
Width is 1.2mm, and thickness h is 0.2mm, and the surface of conductive strips is coated with silver；Conductive strips and cell piece rely on conducting resinl to carry out electricity
Connect；
The overall width W of conductive strips is that 4.8mm, W account for the 3.08% of this solar battery sheet width；The overall width of described welding
The ratio of length L of W solar battery sheet corresponding thereto is 1:32.5.
Above-described embodiment and comparative example are done the test of shading loss, resistance loss and output, and does electrical property survey
Examination, contrasts as follows:
| Conductive strips width | Pmax | Voc | Isc | FF | |
| Embodiment one | 0.6mm | 267.9 | 75.72 | 4.56 | 77.60% |
| Embodiment two | 0.8mm | 265.8 | 37.86 | 9.05 | 77.59% |
| Embodiment three | 0.3mm | 271.7 | 151.44 | 2.30 | 78% |
| Embodiment four | 0.28mm | 274.6 | 151.45 | 2.31 | 78.5% |
| Comparative example one | 1.2mm | 260.1 | 37.77 | 8.97 | 76.76% |
| Embodiment five | 0.8mm | 266 | 37.88 | 9.05 | 77.59 |
| Comparative example two | 1.2mm | 260.5 | 37.84 | 8.97 | 76.76% |
As seen from the above table, compared with existing full wafer solar battery sheet (comparative example one), before silicon chip consumption is identical
Putting, cell piece main grid width is greatly reduced, and silver slurry consumption declines to a great extent, and the consumption of conductive strips is greatly reduced simultaneously, but assembly
Power be still substantially improved.
As can be seen here, the shading loss of the present invention and resistance loss are all substantially reduced, and the output of assembly is greatly promoted,
Achieving beyond thought technique effect, simultaneously as present invention employs narrower thinner conductive strips, the conductive strips of assembly are used
Amount is greatly reduced, thus provides cost savings.Simultaneously as present invention employs narrower thinner conductive strips, corresponding cell piece
Main grid width narrows the most therewith, thus causes the front printing slurry consumption of cell piece to reduce and the fall of backplate usage of sizing agent
Low, thus also save cost.The aluminum back surface field area of respective battery sheet strengthens simultaneously, contributes to improving further the power of assembly
Output.
Compared with comparative example two from embodiment five: the shading loss of the present embodiment five and resistance loss drop the most significantly
Low, the output of assembly is greatly promoted.Simultaneously as the width of conductive strips have dropped, the consumption of conductive strips declines to a great extent, and
And due to dereliction grid cell sheet collocation be silver-plated conductive strips costly, therefore embodiment five greatly reduces conductive strips
Cost.Additionally, due to conductive strips width declines, also can drop accordingly for connecting the conducting resinl demand of cell piece and conductive strips
Low, thus reduce production cost further.
Claims (10)
1. a solar module, including at least 1 solaode string, described solaode string is by multiple solar energys
Cell piece is in series by conductive strips；It is characterized in that:
Described solar battery sheet is provided with at least 2 main gate line, and length L of the solar battery sheet along main gate line direction
Less than or equal to 10 cm；
The overall width W of the conductive strips used on each solar battery sheet described account for this solar battery sheet width D 0.1% ~
3%；
And the ratio of length L of the solar battery sheet that the overall width W of described conductive strips is corresponding thereto is D:8000mm ~ D:
3000mm。
Solar module the most according to claim 1, it is characterised in that: described solar battery sheet is along its main gate line
A length of 3 ~ 9 cm on direction.
Solar module the most according to claim 1, it is characterised in that: main gate line on described solar battery sheet
Quantity is 2 ~ 20.
Solar module the most according to claim 1, it is characterised in that: described solar battery sheet by complete too
Sun can form in cell piece cutting.
Solar module the most according to claim 4, it is characterised in that: described solar battery sheet by complete too
The half solar battery sheet that sun energy cell piece cuts according to the section ratio of 1/2.
Solar module the most according to claim 1, it is characterised in that: adopted on each solar battery sheet described
The quantity of conductive strips identical with the quantity of its main gate line.
Solar module the most according to claim 1, it is characterised in that: used on described solar battery sheet
The width of conductive strips is the most identical.
Solar module the most according to claim 1, it is characterised in that: main grid on each solar battery sheet described
The overall width of line accounts for the 0.1% ~ 2% of this solar battery sheet width.
9. a solar module, including at least 1 solaode string, described solaode string is by multiple solar energys
Cell piece is in series by conductive strips；It is characterized in that:
Described solar battery sheet is the solar battery sheet without main gate line, and described solar battery sheet is connected direction along conductive strips
On length L less than or equal to 10 cm；
The overall width W of the conductive strips used on each solar battery sheet described account for this solar battery sheet width D 0.1% ~
3%；
And the ratio of length L of the solar battery sheet that the overall width W of described conductive strips is corresponding thereto is D:8000mm ~ D:
3000mm。
Solar module the most according to claim 9, it is characterised in that: described conductive strips are with metal coating
Or the metal tape of metal alloy coating.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089428.7A CN106129161B (en) | 2016-02-17 | 2016-02-17 | Solar cell module |
| EP16816964.7A EP3355363B1 (en) | 2015-07-02 | 2016-03-28 | Solar cell module |
| PCT/CN2016/077563 WO2017000599A1 (en) | 2015-07-02 | 2016-03-28 | Solar cell module |
| US15/987,446 US20180269344A1 (en) | 2015-07-02 | 2018-05-23 | Solar cell module |
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| CN201610089428.7A CN106129161B (en) | 2016-02-17 | 2016-02-17 | Solar cell module |
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| CN106129161B CN106129161B (en) | 2020-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108229007A (en) * | 2017-12-29 | 2018-06-29 | 苏州阿特斯阳光电力科技有限公司 | More main grid photovoltaic module analogy methods and photovoltaic module |
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| CN102473755A (en) * | 2009-07-30 | 2012-05-23 | 三洋电机株式会社 | Solar cell module |
| CN202549854U (en) * | 2012-01-13 | 2012-11-21 | 比亚迪股份有限公司 | Solar cell module |
| CN103367508A (en) * | 2012-03-28 | 2013-10-23 | 比亚迪股份有限公司 | Solar cell module |
| WO2014136204A1 (en) * | 2013-03-05 | 2014-09-12 | 長州産業株式会社 | Solar battery module |
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| CN102473755A (en) * | 2009-07-30 | 2012-05-23 | 三洋电机株式会社 | Solar cell module |
| CN202549854U (en) * | 2012-01-13 | 2012-11-21 | 比亚迪股份有限公司 | Solar cell module |
| CN103367508A (en) * | 2012-03-28 | 2013-10-23 | 比亚迪股份有限公司 | Solar cell module |
| WO2014136204A1 (en) * | 2013-03-05 | 2014-09-12 | 長州産業株式会社 | Solar battery module |
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| CN108229007B (en) * | 2017-12-29 | 2021-06-22 | 苏州阿特斯阳光电力科技有限公司 | Multi-main-grid photovoltaic module simulation method and photovoltaic module |
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