CN209708995U - Two-sided imbrication solar cell module - Google Patents
Two-sided imbrication solar cell module Download PDFInfo
- Publication number
- CN209708995U CN209708995U CN201821251802.XU CN201821251802U CN209708995U CN 209708995 U CN209708995 U CN 209708995U CN 201821251802 U CN201821251802 U CN 201821251802U CN 209708995 U CN209708995 U CN 209708995U
- Authority
- CN
- China
- Prior art keywords
- solar battery
- imbrication
- battery sheet
- grid
- solar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of two-sided imbrication solar cell modules, including at least two solar battery sheets, the solar battery sheet stacks gradually arrangement, form imbrication battery strings, the solar battery sheet includes front electrode and rear electrode, and the front electrode includes the secondary grid of front main grid and front, and the rear electrode includes back side pair grid, the long side of the adjacent solar battery sheet is overlapped, and forms face contact；The adjacent solar battery sheet is connected by front main grid electrode, and forms imbrication battery strings by sintering.Using the utility model, structure is simple, simplification of flowsheet, reduces processing step, reduces cost, and the high reliablity of battery component, and photoelectric conversion efficiency is high.
Description
Technical field
The utility model relates to area of solar cell more particularly to a kind of two-sided imbrication solar cell modules.
Background technique
Conventional crystalline silicon component cell piece all uses metal welding band connection substantially.There are three obvious for this connection type
Defect: first is that metal welding band and cell piece gap occupy the positive light-receiving area of component；Second is that there are line losses for metal welding band；Third is that
Welding is expanded with heat and contract with cold by the temperature change period is easy to happen fracture and corrosion, these three modes are to the transfer efficiency of component and property
Stabilizability has large effect.
In order to overcome the above problem, there is a kind of technology that solar battery is connected into component using imbrication technology,
Conventional imbrication component is after being sliced cell piece, then cell piece is bonded bunchiness with special dedicated conducting resinl material.
Such as: the Chinese patent of Publication No. CN106489211A discloses and " covers formula solar cell module ", described
Solar energy module includes: the multiple superbatteries for being arranged to two or more parallels, and each superbattery includes being arranged to
The rectangle of straight line or multiple silicon solar cells of substantial rectangular, wherein adjacent silicon solar cell long side overlapping and each other
Directly conductively engage so that the silicon solar cell to be electrically connected in series；And the back surface positioned at the first solar battery
On hiding tap engagement pad, hiding tap engagement pad non-conducting high current in normal work；Wherein institute
The first solar battery is stated positioned at the middle position along first superbattery in superbattery described in first row, and
And the hiding tap engagement pad is electrically connected in parallel at least the second solar battery in superbattery described in second row.
It is attached between above-mentioned adjacent solar battery using conductive adhesive, complex process, connection effect is unstable
Gu increasing resistance loss, whole photoelectric conversion efficiency is influenced.
Moreover, it also requires the conductibility engagement between the adjacent solar battery being overlapped in superbattery to utilize
The conductibility between conductive adhesive and the superbattery and the flexible electrical interconnection engages the conductibility utilized
Adhesive is different.The complexity of technological operation can be further increased in this way, increases processing step, increases the chance of error, produced
The reliability of product is unable to get guarantee.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of two-sided imbrication solar cell module, structures
Simply, cost, and the high reliablity of battery component are reduced, photoelectric conversion efficiency is high.
In order to solve the above-mentioned technical problem, the utility model provides a kind of two-sided imbrication solar cell module, including
At least two solar battery sheets, the solar battery sheet stack gradually arrangement, form imbrication battery strings, wherein it is described too
Positive energy cell piece includes front electrode and rear electrode, and the front electrode includes the secondary grid of front main grid and front, the back side
Electrode includes back side pair grid, and the long side overlapping of the adjacent solar battery sheet forms face contact；
The adjacent solar battery sheet is connected by front main grid electrode, and forms imbrication battery strings by sintering.
As the preferred embodiment of above scheme, the solar battery sheet is the fragment that formation is cut after silicon wafer pre-processes,
The front of each fragment is equipped with the secondary grid of a front main grid and multiple fronts.
As the preferred embodiment of above scheme, the adjacent solar battery sheet is connected by front main grid electrode, often
The front main grid of one solar battery sheet is set to the back side of preceding a piece of solar battery sheet.
As the preferred embodiment of above scheme, the solar battery sheet includes the first solar battery sheet and second sun
It can cell piece；
The front electrode of first solar battery sheet includes the secondary grid of front main grid and front, and rear electrode includes the back side
Secondary grid；
The front electrode of second solar battery sheet includes the secondary grid of front main grid and front, and rear electrode includes the back side
Main grid and back side pair grid；
First solar battery sheet stacks gradually arrangement, is finally laminated and connects with the second solar battery sheet again.
As the preferred embodiment of above scheme, the imbrication battery strings are set as a row or multi-row imbrication battery strings；
Every row's imbrication battery strings include one or more first solar battery sheets and second solar battery sheet；
One or more first solar battery sheets stack gradually arrangement, are finally laminated and connect with the second solar battery sheet again
It connects, second solar battery sheet is set to outermost.
As the preferred embodiment of above scheme, the imbrication battery strings are set as multiple rows of imbrication battery strings, single imbrication electricity
By being connected in series between the solar battery sheet of pond string, connected in parallel or series between difference row's imbrication battery strings by welding
It connects.
As the preferred embodiment of above scheme, the area of the overlapping region of adjacent solar battery sheet is monolithic solar energy
The 0.5-20% of cell piece area.
Implement the utility model, has the following beneficial effects:
The utility model provides a kind of two-sided imbrication solar cell module, including at least two solar battery sheets, phase
The long side overlapping of the adjacent solar battery sheet, forms face contact；And the adjacent solar battery sheet is main by front
Gate electrode is connected, and forms imbrication battery strings by sintering, has the advantage that
1, conventional imbrication electricity is replaced using the connection type for sharing front main grid slurry between the adjacent fragment of the utility model
Laser cutting is connected with the imbrication of fragment and is dissolved into battery manufacturing process, saves back side master by the conductive adhesive between pond
Grid slurry, while the manufacturing process of two-sided imbrication component is enormously simplified, reduce equipment cost and production cost；
2, Double-side laminated is also simplified using the connection type for sharing front main grid slurry between the adjacent fragment of the utility model
The design requirement of watt cell pattern, no longer needs to consider the symmetric form of slice pattern, without increasing orientation point and welding
The design of anchor point increases the flexibility of positive rear electrode graphic designs；
3, using the connection type for sharing front main grid slurry between the adjacent fragment of the utility model, with conductive glue connection
Mode is compared, and series resistance and resistance loss are reduced, and is obviously improved the power of two-sided imbrication component；
4, front main grid slurry is shared between the adjacent fragment of the utility model, and imbrication battery can be formed by sintering
String incorporates the preparation process of imbrication battery strings in conventional solar cells manufacturing process, is further simplified process flow, subtracts
Few processing step, reduces cost.And the prior art is first to prepare product, then fragment by conventional solar cells, is then pressed again
Imbrication technology is prepared into imbrication component, and two preparation flows of the prior art are independent from each other；
5, the process flow of the utility model is relatively simple, and each processing step is all more mature, and incorporates commonly too
In positive energy battery manufacturing process, the probability to malfunction in manufacturing process is reduced, the reliability of product is increased；
6, the utility model solar battery sheet is connected by the way of the imbrication of front and back, and surface does not have metal welding band, battery
It is also very close to each other between piece, area workable for assembly surface is taken full advantage of, reduces the line loss of conventional metals welding, therefore substantially
Improve the transfer efficiency of component；
7, traditional metal welding band connection mode is line connection, and the utility model imbrication component is then face connection, effectively
The attachment force between cell piece is improved, keeps component more reliable.
Detailed description of the invention
Fig. 1 is the segmentation schematic diagram of the utility model front side of silicon wafer；
Fig. 2 is the segmentation schematic diagram of one embodiment of the utility model silicon chip back side；
Fig. 3 is the segmentation schematic diagram of another embodiment of the utility model silicon chip back side；
Fig. 4 is schematic diagram of the utility model imbrication component during arrangement is laminated；
Fig. 5 is the positive structural schematic diagram of imbrication component made from Fig. 4；
Fig. 6 is the structural schematic diagram at the back side of imbrication component made from Fig. 4；
Fig. 7 is the sectional view of imbrication component made from Fig. 4；
Fig. 8 is schematic diagram of the utility model imbrication component during another stacking arrangement；
Fig. 9 is the positive structural schematic diagram of imbrication component made from Fig. 8；
Figure 10 is the structural schematic diagram at the back side of imbrication component made from Fig. 8；
Figure 11 is the sectional view of imbrication component made from Fig. 8；
Figure 12 is the flow chart of the preparation method of the two-sided imbrication solar cell module of the utility model；
Figure 13 is the flow chart of another preparation method of the two-sided imbrication solar cell module of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
The utility model provides a kind of two-sided imbrication solar cell module, including at least two solar battery sheets 1,
The solar battery sheet 1 stacks gradually arrangement, forms imbrication battery strings 10.Wherein, the solar battery sheet 1 includes front
Electrode and rear electrode, the front electrode include the secondary grid 12 of front main grid 11 and front, and the rear electrode includes back side pair
Grid 13.
As shown in Figure 1, Figure 2 and Figure 3, the solar battery sheet 1 is the fragment that formation is cut after silicon wafer pre-processes, each
The front of fragment is equipped with the secondary grid 12 (as shown in Figure 1) of a front main grid 11 and multiple fronts, sets on the back side of each fragment
There are multiple back side pair grid 13 and back side main grid 14 (as shown in Figure 2), alternatively, the back side of each fragment is equipped with multiple back side pair grid
13 (as shown in Figure 3).Dotted line in Fig. 1, Fig. 2 and Fig. 3 is the cutting line of silicon wafer.
It should be noted that the main grid of the utility model and secondary grid can be the forms such as straight line, segmentation, curve, laser is cut
Secant is also possible to straight line or curve, and is not limited thereto.It, can be with moreover, the utility model is other than main grid, secondary grid
Equipped with spine, the embodiment multiplicity of the solar cell module, the utility model embodiment is not limited to lift real
Apply example.
As shown in figure 4, the utility model is during being laminated arrangement, the adjacent solar battery sheet 1 passes through front
11 electrode of main grid is connected, and the front main grid 11 of each solar battery sheet is set to the back side of preceding a piece of solar battery sheet.Such as figure
5, shown in Fig. 6 and Fig. 7, imbrication battery strings after assembling, the long side overlapping of the adjacent solar battery sheet 1, forming face connect
Touching；The adjacent solar battery sheet 1 is connected by front main grid electrode, and forms imbrication battery strings 10 by sintering.
And Fig. 8-11 is that the solar battery sheet 1 of another embodiment forms the schematic diagram of imbrication battery strings 10, with Fig. 4-7
Shown imbrication battery strings the difference is that Fig. 8-11 selects the solar battery sheet of another shape, the shape is similar be it is trapezoidal, be
The outside fragment of silicon wafer segmentation.
It should be noted that being, the utility model can select the solar battery sheet of various shapes, be preferably rectangle,
It is trapezoidal, or similar rectangle, it is similar trapezoidal, but not limited to this.
The utility model is cut into solar battery sheet after pre-processing traditional silicon wafer, solar battery sheet uses front and back folded
Watt mode connect, surface does not have a metal welding band, very close to each other between cell piece yet, takes full advantage of face workable for assembly surface
Product, reduces the line loss of conventional metals welding, therefore greatly improves the transfer efficiency of component.
Moreover, traditional metal welding band connection mode is line connection, and the utility model imbrication component is then face connection, is had
Effect improves the attachment force between cell piece, keeps component more reliable.
Most of all, being replaced between the adjacent fragment of the utility model using the connection type for sharing front main grid slurry
Laser cutting is connected with the imbrication of fragment and is dissolved into battery manufacturing process by the conductive adhesive between conventional imbrication battery,
Back side main grid paste is saved, while enormously simplifying the manufacturing process of two-sided imbrication component, reduces equipment cost and production cost.
Using the connection type for sharing front main grid slurry between the adjacent fragment of the utility model, two-sided imbrication is also simplified
The design requirement of cell pattern no longer needs to consider the symmetric form of slice pattern, fixed without increasing orientation point and welding
The design in site increases the flexibility of positive rear electrode graphic designs.
Using the connection type for sharing front main grid slurry between the adjacent fragment of the utility model, the side with conductive glue connection
Formula is compared, and series resistance and resistance loss are reduced, and is obviously improved the power of two-sided imbrication component.
Preferably, as seen in figs. 7 and 11, the area of the overlapping region 2 of adjacent solar battery sheet 1 is the monolithic sun
The 0.5-20% of energy 1 area of cell piece, it is ensured that the adjacent solar battery sheet is connected by front main grid electrode
Stability reduces series resistance and resistance loss, is obviously improved the power of single side imbrication component.Moreover, it is also possible to simplify system
The difficulty of standby technique, saves the silicon material of overlapping region, makes with the implementation of lower cost.When the overlapping of adjacent solar battery sheet
When the area in region is the 0.5-20% of monolithic solar cell piece area, series resistance and resistance loss can be practical new at this
Under the premise of type base case, 10% is additionally reduced.If the area of the overlapping region of adjacent solar battery sheet is less than monolithic
The 0.5% of the solar battery sheet area, the width for sharing main grid is just smaller, influences the transmission of electric current；If adjacent solar-electricity
The area of the overlapping region of pond piece is greater than the 20% of monolithic solar cell piece area, and series resistance and resistance loss do not obtain
It being substantially reduced, the photoelectric conversion efficiency of solar energy cannot be obviously improved, moreover, overlapping region area is bigger, the use of silicon material
It measures also more.Therefore, overlapping area needs to take an equilibrium valve.It is further preferred that the overlapping of adjacent solar battery sheet 1
The area in region 2 is the 1-10% of 1 area of monolithic solar cell piece.More preferably, the overlay region of adjacent solar battery sheet 1
The area in domain 2 is the 2-8% of 1 area of monolithic solar cell piece.
The imbrication battery strings 10 of the utility model can be set to a row or multi-row imbrication battery strings, every row's imbrication battery strings
Pass through series connection between 10 solar battery sheet 1.And when imbrication battery strings 10 are set as multiple rows of, single imbrication battery strings
Pass through series connection between 10 solar battery sheet 1；Pass through in parallel or other modes between difference row's imbrication battery strings 10
Connection, connection type multiplicity, the utility model are defined not to this.Preferably, lead between different row's imbrication battery strings 10
Welding is crossed to connect in parallel or series.
In every row's imbrication battery strings 10, it is located at positive front main grid 11 and is used as cathode, the back side main grid 14 positioned at the back side
As anode.In general, being located at the side that positive front main grid 11 is set to row's imbrication battery strings 10, positioned at the back side
Back side main grid 14 is then set to the other side of row's imbrication battery strings 10.At this point, be set to the other side of row's imbrication battery strings
The rear electrode of solar battery sheet is not only equipped with back side pair grid, is additionally provided with back side main grid.
In order to preferably describe this technical solution, the utility model divides solar battery sheet 1 for the first solar-electricity
Pond piece and the second solar battery sheet；The front electrode of first solar battery sheet includes the secondary grid of front main grid 11 and front
12, rear electrode includes back side pair grid 13；The front electrode of second solar battery sheet includes front main grid 11 and front
Secondary grid 12, rear electrode include back side main grid 14 and back side pair grid 13；First solar battery sheet stacks gradually arrangement, finally again
It is laminated and connects with the second solar battery sheet.
Preferably, every row's imbrication battery strings 10 include one or more first solar battery sheets and second solar energy
Cell piece；One or more first solar battery sheets stack gradually arrangement, are finally laminated and connect with the second solar battery sheet again
It connects, second solar battery sheet is set to outermost.
Correspondingly, a kind of preparation method of two-sided imbrication solar cell module is also disclosed in the utility model, such as Figure 12 institute
Show, comprising:
S101, it is pre-processed in silicon wafer, and prints front electrode and rear electrode in silicon chip surface.
Specifically, according to the design of electrode, in the secondary grid of front side of silicon wafer printing front main grid and front, in the back of silicon wafer
Face printed back pair grid and back side main grid.It should be noted that back side main grid is equipped with 1-2 root.
S102, silicon wafer is cut, forms solar battery sheet；
Solar battery sheet after cutting includes the first solar battery sheet and the second solar battery sheet；Described first too
The front electrode of positive energy cell piece includes the secondary grid 12 of front main grid 11 and front, and rear electrode includes back side pair grid 13；Described
The front electrode of two solar battery sheets includes the secondary grid 12 of front main grid 11 and front, and rear electrode includes back side main grid 14 and back
Face pair grid 13.
The cutting is preferentially using laser cutting, it is not easy to lead to fragment, while can guarantee the accuracy of size.
S103, solar battery sheet is laminated to arrangement one by one, the long side of the adjacent solar battery sheet is overlapped and leads to
It crosses front main grid to be connected, forms imbrication battery strings, and dry；
Specifically, every row's imbrication battery strings 10 include one or more first solar battery sheets and second solar energy
Cell piece；One or more first solar battery sheets stack gradually arrangement, are finally laminated and connect with the second solar battery sheet again
It connects, second solar battery sheet is set to outermost.
Pass through the connection of in parallel or other modes, connection between the solar battery sheet 1 of difference row's imbrication battery strings 10
Mode multiplicity, the utility model are defined not to this.
S104, high temperature sintering is carried out to imbrication battery strings, makes slurry curing；
S105, imbrication battery strings are carried out with anti-LID annealing, after stepping test, is packaged into imbrication component.
It should be noted that anti-LID annealing just refers to that photo attenuation is annealed.
After stepping test, by the cell package of identical gear to the same component, guarantee component Maximum Power Output and
Guarantee the stability of power output.
The utility model can use the preparation method of another two-sided imbrication solar cell module, as shown in figure 13,
Include:
S201, silicon wafer is pre-processed, is then cut, form solar battery sheet；
The cutting is preferentially using laser cutting, it is not easy to lead to fragment, while can guarantee the accuracy of size.
S202, in solar battery sheet surface printing front electrode and rear electrode；
Solar battery sheet includes the first solar battery sheet and the second solar battery sheet；First solar battery
The front electrode of piece includes the secondary grid 12 of front main grid 11 and front, and rear electrode includes back side pair grid 13；Second solar energy
The front electrode of cell piece includes the secondary grid 12 of front main grid 11 and front, and rear electrode includes back side main grid 14 and back side pair grid
13.The utility model is printed according to the design of above-mentioned first solar battery sheet and the second solar battery sheet.
S203, solar battery sheet is laminated to arrangement one by one, the long side of the adjacent solar battery sheet is overlapped and leads to
It crosses front main grid to be connected, forms imbrication battery strings, and dry；
Specifically, every row's imbrication battery strings 10 include one or more first solar battery sheets and second solar energy
Cell piece；One or more first solar battery sheets stack gradually arrangement, are finally laminated and connect with the second solar battery sheet again
It connects, second solar battery sheet is set to outermost.
Pass through the connection of in parallel or other modes, connection between the solar battery sheet 1 of difference row's imbrication battery strings 10
Mode multiplicity, the utility model are defined not to this.
S204, high temperature sintering is carried out to imbrication battery strings, makes slurry curing；
S205, imbrication battery strings are carried out with anti-LID annealing, after stepping test, is packaged into imbrication component.
It should be noted that anti-LID annealing just refers to that photo attenuation is annealed.
After stepping test, by the cell package of identical gear to the same component, guarantee component Maximum Power Output and
Guarantee the stability of power output.
Laser cutting is connected with the imbrication of fragment and is dissolved into battery manufacturing process by the utility model, between adjacent fragment
Front main grid slurry is shared, imbrication battery strings can be formed by sintering, be further simplified process flow, reduces technique step
Suddenly, cost is reduced.And the prior art is first to prepare product, then fragment by conventional solar cells, then presses imbrication technology again
It is prepared into imbrication component, two preparation flows of the prior art are independent from each other.
Also, the process flow of the utility model is relatively simple, and each processing step is all more mature, and incorporates common
In solar battery manufacturing process, the probability to malfunction in manufacturing process is reduced, the reliability of product is increased.
Preparation method shown in Figure 12 and Figure 13 the difference is that, it is described cutting be set to printing front electrode and the back side electricity
Before or after pole.
Further, described pre-process includes:
(1.1) flannelette is formed in front side of silicon wafer and the back side；
The silicon wafer can select P-type silicon or N-type silicon.
(1.2) high square resistance diffusion is carried out in front side of silicon wafer, forms PN junction；
Sheet resistance is generally preferred to 80-200 Ω/, but not limited to this.
(1.3) selective laser doping is carried out to front side of silicon wafer；
Laser doping pattern needs are corresponding with subsequent front electrode pair gate pattern, use prior art design i.e.
It can.
(1.4) by-product and periphery P N knot that removal diffusion process is formed, and silicon chip back side is polished；
N-type silicon is formed in front side of silicon wafer according to phosphorus diffusion, by-product is phosphorosilicate glass；
Front side of silicon wafer is diffused according to boron and forms P-type silicon, and by-product is Pyrex.
(1.5) passivating film and protective film are deposited in silicon chip back side；
The passivating film is preferably silicon dioxide film, di-aluminium trioxide film or silicon nitride film, and protective film preferably nitrogenizes
Silicon fiml, silicon oxynitride film, silicon dioxide film or the composite membrane being made of above-mentioned film, but not limited to this.
(1.6) passivating film and antireflective film are deposited in front side of silicon wafer；
The passivating film is preferably silicon dioxide film, di-aluminium trioxide film or silicon nitride film；The antireflective film is preferably nitrogen
SiClx film or silicon dioxide film, but not limited to this.
(1.7) laser slotting is carried out to the passivating film of silicon chip back side and protective film.
Laser slotting pattern is corresponding with subsequent back side pair grid line pattern, generally linear type or line segment type.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than to this realities
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is common
It will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this reality
With the spirit and scope of new technique scheme.
Claims (6)
1. a kind of two-sided imbrication solar cell module, including at least two solar battery sheets, the solar battery sheet according to
Secondary stacking arrangement, forms imbrication battery strings, which is characterized in that and the solar battery sheet includes front electrode and rear electrode,
The front electrode includes the secondary grid of front main grid and front, and the rear electrode includes back side pair grid, the adjacent solar energy
The long side of cell piece is overlapped, and forms face contact；
The adjacent solar battery sheet is connected by front main grid electrode, and forms imbrication battery strings by sintering.
2. two-sided imbrication solar cell module as described in claim 1, which is characterized in that the solar battery sheet is silicon wafer
The fragment of formation is cut after pretreatment, the front of each fragment is equipped with the secondary grid of a front main grid and multiple fronts, Mei Gefen
The back side of piece is equipped with multiple back side pair grid.
3. two-sided imbrication solar cell module as described in claim 1, which is characterized in that the front of each solar battery sheet
Main grid is set to the back side of preceding a piece of solar battery sheet.
4. two-sided imbrication solar cell module as described in claim 1, which is characterized in that the solar battery sheet includes the
One solar battery sheet and the second solar battery sheet；
The front electrode of first solar battery sheet includes the secondary grid of front main grid and front, and rear electrode includes back side pair
Grid；
The front electrode of second solar battery sheet includes the secondary grid of front main grid and front, and rear electrode includes back side main grid
With back side pair grid；
First solar battery sheet stacks gradually arrangement, is finally laminated and connects with the second solar battery sheet again.
5. two-sided imbrication solar cell module as claimed in claim 4, which is characterized in that the imbrication battery strings are set as one
Row or multiple rows of imbrication battery strings；
Every row's imbrication battery strings include one or more first solar battery sheets and second solar battery sheet；
Second solar battery sheet is set to outermost.
6. two-sided imbrication solar cell module as claimed in claim 5, which is characterized in that the imbrication battery strings are set as more
Arrange imbrication battery strings, by being connected in series between the solar battery sheet of single imbrication battery strings, difference row imbrication battery strings it
Between connected in parallel or series by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821251802.XU CN209708995U (en) | 2018-08-03 | 2018-08-03 | Two-sided imbrication solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821251802.XU CN209708995U (en) | 2018-08-03 | 2018-08-03 | Two-sided imbrication solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209708995U true CN209708995U (en) | 2019-11-29 |
Family
ID=68635614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821251802.XU Active CN209708995U (en) | 2018-08-03 | 2018-08-03 | Two-sided imbrication solar cell module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209708995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987509A (en) * | 2018-08-03 | 2018-12-11 | 浙江爱旭太阳能科技有限公司 | Two-sided imbrication solar cell module and preparation method |
-
2018
- 2018-08-03 CN CN201821251802.XU patent/CN209708995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987509A (en) * | 2018-08-03 | 2018-12-11 | 浙江爱旭太阳能科技有限公司 | Two-sided imbrication solar cell module and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108987509A (en) | Two-sided imbrication solar cell module and preparation method | |
| CN109216478A (en) | Single side imbrication solar cell module and preparation method | |
| AU2020381626B2 (en) | P-type bifacial solar cell with partial rear surface field passivation and preparation method therefor | |
| WO2019214627A1 (en) | Solar cell string, string group, assembly, and manufacturing method thereof | |
| CN108922929A (en) | The two-sided imbrication solar cell module of perforation and preparation method | |
| CN106298987A (en) | A kind of MWT solar module | |
| CN108987516A (en) | Latticed two-sided direct-connected solar cell module and preparation method | |
| CN104253169A (en) | Main-grid-free high-efficiency back contact solar battery module, assembly and preparing process | |
| CN209708987U (en) | Single side imbrication solar cell module | |
| CN208674136U (en) | The two-sided direct-connected solar cell module of fragment perforation | |
| CN108922934A (en) | Two-sided direct-connected solar cell module and preparation method | |
| CN109326664A (en) | The direct-connected solar cell module of single side and preparation method | |
| CN209708995U (en) | Two-sided imbrication solar cell module | |
| US20180294367A1 (en) | Back contact solar cell substrate, method of manufacturing the same and back contact solar cell | |
| CN108987510A (en) | The direct-connected solar cell module of latticed single side and preparation method | |
| CN111106194A (en) | Double-sided solar cell and photovoltaic module | |
| CN109037365A (en) | Perforation single side imbrication solar cell module and preparation method | |
| CN109037364A (en) | The two-sided direct-connected solar cell module of fragment perforation and preparation method | |
| CN108987507A (en) | The direct-connected solar cell module of fragment single side and preparation method | |
| CN209641662U (en) | Perforation single side imbrication solar cell module | |
| CN209708986U (en) | The two-sided imbrication solar cell module of perforation | |
| CN109244160A (en) | The direct-connected solar cell module of fragment single side and preparation method | |
| CN208674134U (en) | The two-sided direct-connected solar cell module of fragment | |
| CN209641666U (en) | The direct-connected solar cell module of fragment single side | |
| CN208674135U (en) | The two-sided direct-connected solar cell module of fragment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |