CN209641666U - The direct-connected solar cell module of fragment single side - Google Patents
The direct-connected solar cell module of fragment single side Download PDFInfo
- Publication number
- CN209641666U CN209641666U CN201821251720.5U CN201821251720U CN209641666U CN 209641666 U CN209641666 U CN 209641666U CN 201821251720 U CN201821251720 U CN 201821251720U CN 209641666 U CN209641666 U CN 209641666U
- Authority
- CN
- China
- Prior art keywords
- solar battery
- battery sheet
- main grid
- contact
- lateral
- 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 direct-connected solar cell module of fragment single side, including at least two solar battery sheets, solar battery sheet is 1/2 or 1/4 silicon wafer；The solar battery sheet includes the first solar battery sheet；First solar battery sheet includes the first front electrode and the first back surface field, and first front electrode, the first back surface field are equipped with lateral main grid and contact, and the contact is set to the end of lateral main grid；The long side of adjacent solar battery sheet is overlapped, and forms face contact；Adjacent solar battery sheet is connected by contact, and by coating conducting resinl, cured formation battery strings on contact.Using the utility model, structure is simple, reduces the gap between the use of welding and cell piece, reduces the power loss of component internal, reduces cost, improves the reliability of battery component, improves photoelectric conversion efficiency.
Description
Technical field
The utility model relates to area of solar cell more particularly to a kind of direct-connected solar cell modules of fragment single side.
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.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of direct-connected solar cell module of fragment single side,
Structure is simple, reduces the gap between the use of welding and cell piece, reduces the power loss of component internal, reduces cost, mentions
The reliability of high battery component improves photoelectric conversion efficiency.
In order to solve the above-mentioned technical problem, the utility model provides a kind of direct-connected solar cell module of fragment single side,
Including at least two solar battery sheets, the solar battery sheet stacks gradually arrangement, forms battery strings, wherein it is described too
Positive energy cell piece is 1/2 or 1/4 silicon wafer, and the solar battery sheet includes the first solar battery sheet；
First solar battery sheet include the first front electrode and the first back surface field, first front electrode,
First back surface field is equipped with lateral main grid and contact, and the contact is set to the end of lateral main grid；
The long side of adjacent solar battery sheet is overlapped, and forms face contact；
Adjacent solar battery sheet is connected by contact, and by coating conducting resinl, cured formation electricity on contact
Pond string.
As the preferred embodiment of above scheme, the solar battery sheet is to pass through pretreated 1/2 or 1/4 silicon wafer,
The processing successively includes: to form flannelette at the positive back side of 1/2 or 1/4 silicon wafer, diffuse to form PN junction, doping, polished backside, just
Backside deposition passivating film, back side fluting, printing front electrode and back surface field, sintering, anti-LID annealing, stepping test.
As the preferred embodiment of above scheme, the lateral main grid in the front of first solar battery sheet and the back side are laterally main
Grid are equipped with contact, and the contact is set to the end of lateral front main grid；
The contact of the lateral main grid in front of each solar battery sheet is set to the back side of preceding a piece of solar battery sheet, and preceding
The contact of the back side transverse direction main grid of a piece of solar battery sheet connects.
As the preferred embodiment of above scheme, the contact is circular contact, rectangular contacts, regular polygon contact or linear
Contact.
As the preferred embodiment of above scheme, the solar battery sheet further includes the second solar battery sheet, and second too
Positive energy cell piece includes the second front electrode and the second back surface field, and second front electrode, the second back surface field are equipped with
Lateral main grid, at least one of second front electrode, second back surface field are equipped with longitudinal main grid, the longitudinal direction main grid with
Lateral main grid connection.
As the preferred embodiment of above scheme, the solar battery sheet includes the second solar battery sheet A, second sun
It can cell piece B and the first solar battery sheet；
The front electrode of the second solar battery sheet A include a plurality of lateral front main grid, 1 longitudinal front main grid and
The a plurality of secondary grid in front, back surface field are equipped with a plurality of lateral back side main grid, set on the contact of lateral back side main grid end；
The front electrode of the second solar battery sheet B includes a plurality of lateral front main grid, is set to lateral front main grid
The secondary grid in the contact of end and a plurality of front, back surface field are equipped with a plurality of lateral back side main grid, 1 longitudinal back side main grid；
The front electrode of first solar battery sheet includes a plurality of lateral front main grid, is set to lateral front main grid end
The secondary grid in the contact in portion and a plurality of front, back surface field are equipped with a plurality of lateral back side main grid, the touching set on lateral back side main grid end
Point；
Second solar battery sheet A, the first solar battery sheet, the second solar battery sheet B stack gradually connection.
As the preferred embodiment of above scheme, the width of the contact is at least bigger by 20% than the width of lateral main grid；
The area of the overlapping region of adjacent solar battery sheet is the 0.5-20% of monolithic solar cell piece area.
Implement the utility model, has the following beneficial effects:
The utility model provides a kind of direct-connected solar cell module of fragment single side, including at least two solar batteries
Piece, the solar battery sheet are to pass through pretreated 1/2 or 1/4 silicon wafer, and the long side of adjacent solar battery sheet is overlapped,
Form face contact；And adjacent solar battery sheet is connected by contact, and by coating conducting resinl, cured shape on contact
At battery strings, have the advantage that
1, it is all connected by welding between the cell piece of traditional components, the solar-electricity inside the battery strings of the utility model
The positive and negative anodes of adjacent cell piece are connected directly by conducting resinl between the piece of pond, drastically reduce the dosage of welding, cell piece
Between it is also very close to each other, take full advantage of area workable for assembly surface, reduce the line loss of conventional metals welding, therefore substantially mention
The transfer efficiency of component is risen；
2, the manufacture of single sided assemblies is enormously simplified by contact and conductive glue connection between the adjacent fragment of the utility model
Process reduces equipment cost and production cost；
3, series resistance and resistance damage are reduced by contact and conductive glue connection between the adjacent fragment of the utility model
Consumption, is obviously improved the power of single sided assemblies；
4, by coating conducting resinl, cured formation battery strings, technique on contact between the adjacent fragment of the utility model
Process is simple, reduces cost；
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, traditional metal welding band connection mode is line connection, and the utility model component is then face connection, is effectively promoted
Attachment force between cell piece, keeps the component more reliable.
7, the utility model solar battery sheet is to pass through pretreated 1/2 or 1/4 silicon wafer (i.e. fragment), with full wafer silicon
Piece is compared, and the electric current passed through on fragment is less than the electric current of full wafer, reduces the power loss of component internal, the function of lifting assembly
Rate；And compared with the fragment of common imbrication component, the area of the utility model solar battery sheet is larger, avoids stacking quantity mistake
The problems such as more brings are at high cost, stability is poor.
Detailed description of the invention
Fig. 1 is the segmentation schematic diagram of the Facad structure of the first solar battery sheet of the utility model；
Fig. 2 is the segmentation schematic diagram of the backside structure of the first solar battery sheet of the utility model；
Fig. 3 is schematic diagram of the direct-connected component first embodiment of the utility model single side in lamination process；
Fig. 4 is the positive structure schematic of the direct-connected component first embodiment of the utility model single side；
Fig. 5 is the structure schematic diagram of the direct-connected component first embodiment of the utility model single side；
Fig. 6 is the sectional view of the direct-connected component of single side shown in Fig. 3；
Fig. 7 is the segmentation schematic diagram of the Facad structure of the second solar battery sheet of the utility model A；
Fig. 8 is the segmentation schematic diagram of the backside structure of the second solar battery sheet of the utility model A；
Fig. 9 is the segmentation schematic diagram of the Facad structure of the second solar battery sheet of the utility model B；
Figure 10 is the segmentation schematic diagram of the backside structure of the second solar battery sheet of the utility model B；
Figure 11 is schematic diagram of the direct-connected component second embodiment of the utility model single side in lamination process；
Figure 12 is the positive structure schematic of the direct-connected component second embodiment of the utility model single side；
Figure 13 is the structure schematic diagram of the direct-connected component second embodiment of the utility model single side；
Figure 14 is the sectional view of the direct-connected component second embodiment of the utility model single side；
Figure 15 is the flow chart of the preparation method of the direct-connected solar cell module of the utility model fragment single side；
Figure 16 is the flow chart of another preparation method of the direct-connected solar cell module of the utility model fragment single side.
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 direct-connected solar cell module of fragment single side comprising at least two solar-electricities
Pond piece, the solar battery sheet stack gradually arrangement, form battery strings.The solar battery sheet is 1/2 or 1/4 silicon wafer
(i.e. fragment), compared with full wafer silicon wafer, the electric current passed through on fragment is less than the electric current of full wafer, reduces the power of component internal
Loss, the power of lifting assembly；And compared with the fragment of common imbrication component, the area of the utility model solar battery sheet compared with
Greatly, the problems such as stacking excessive bring of quantity is at high cost, stability is poor is avoided.
It is below practical by being illustrated in conjunction with Fig. 1-14 for pretreated 1/4 silicon wafer by solar battery sheet
Novel, the solar battery sheet includes at least the first solar battery sheet.
As shown in Figure 1, 2, the first solar battery sheet 1A is to pass through pretreated 1/4 silicon wafer, and each first too
Positive energy cell piece 1A includes the first front electrode and the first back surface field, and first front electrode, the first back surface field are all provided with
There are lateral main grid and contact, the contact is set to the end of lateral main grid.
Specifically, the front electrode of the first solar battery sheet 1A includes a plurality of lateral front main grid 11, is set to cross
To the secondary grid 13 in contact 111 and a plurality of front of 11 end of front main grid；Back surface field 16 is equipped with a plurality of 14 He of lateral back side main grid
Set on the contact 111 of lateral 14 end of back side main grid.
Preferably, the contact 111 is circular contact, rectangular contacts, regular polygon contact or linear contact.It is described linear
Contact may include the linear of variform, such as straight line, curve, camber line etc..
It should be noted that the contact may be arranged as other shapes, such as diamond shape in addition to above-mentioned shape, half
Circle or other irregular shapes, embodiment are not limited to the utility model illustrated embodiment.
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 3, the utility model, during arrangement is laminated, adjacent solar battery sheet 1 is connected by contact 111
It connecing, the contact 111 of the lateral main grid 11 in the front of each solar battery sheet 1 is set to the back side of preceding a piece of solar battery sheet 1, with
The contact 111 of the lateral back side main grid 14 of preceding a piece of solar battery sheet 1 connects.As shown in Fig. 4, Fig. 5, Fig. 6, the adjacent sun
The long side overlapping of energy cell piece 1, forms face contact 20；Adjacent solar battery sheet 1 is connected by contact 111, and by
Conducting resinl, cured formation battery strings 10 are coated on contact 111.
The full wafer silicon wafer of the industry, general length and width are equal, and size is mostly 156 ± 2mm, and the utility model uses full wafer silicon wafer
Stacking, simple and convenient, high production efficiency.
By contact and conductive glue connection between the adjacent fragment of the utility model, the manufacture stream of single sided assemblies is enormously simplified
Journey reduces equipment cost and production cost；
By contact and conductive glue connection between the adjacent fragment of the utility model, series resistance and resistance loss are reduced,
It is obviously improved the power of single sided assemblies；
By coating conducting resinl, cured formation battery strings, technique stream on contact between the adjacent fragment of the utility model
Journey is simple, reduces cost.
The battery strings 10 of the utility model can be set to a row or multi-row battery strings, the solar-electricity of every row's battery strings 10
Pass through series connection between pond piece 1.And when battery strings 10 are set as multiple rows of, the solar battery sheets 1 of single battery strings 10 it
Between pass through series connection；Pass through the connection of in parallel or other modes, connection type multiplicity, this reality between difference row's battery strings 10
It is defined with novel not to this.Preferably, it is connected in parallel or series between different row's battery strings 10 by welding.
In every row's battery strings, solar battery sheet is connected by the way of the stacking of front and back, and surface does not have metal welding band, electricity
It is also very close to each other between the piece of pond, area workable for assembly surface is taken full advantage of, reduces the line loss of conventional metals welding, therefore big
Width improves the transfer efficiency of component；
Traditional metal welding band connection mode is line connection, and the utility model component is then face connection, is effectively improved
Attachment force between cell piece keeps component more reliable.
As shown in FIG. 6 to 13, the utility model additionally provides the second implementation of the direct-connected solar cell module of fragment single side
Example, further includes second solar battery sheet at this time；Second solar battery sheet is to pass through pretreated 1/4 silicon
Piece；
As shown in Fig. 7 and Fig. 8, Fig. 9 and Figure 10, second solar battery sheet includes the second front electrode and the second back
Face electric field, second front electrode, the second back surface field are equipped with lateral main grid, second front electrode, second back side
At least one of electric field is equipped with longitudinal main grid, and the longitudinal direction main grid is connect with lateral main grid.
Specifically, there are many embodiments for the electrode of shown second solar battery sheet, comprising:
(1) as shown in Figure 7 and Figure 8, the second solar battery sheet 1B is to pass through pretreated 1/4 silicon wafer, described
The front electrode of second solar battery sheet 1B include the longitudinal front main grids 12 of a plurality of lateral front main grid 11,1 and it is a plurality of just
Face pair grid 13, back surface field 16 are equipped with a plurality of lateral back side main grid 14, set on the contact 111 of lateral 14 end of back side main grid, life
Entitled second solar battery sheet A；
(2) as shown in Figure 9 and Figure 10, the second solar battery sheet 1C is to pass through pretreated 1/4 silicon wafer, described
The front electrode of second solar battery sheet 1C includes a plurality of lateral front main grid 11, the touching set on lateral 11 end of front main grid
The secondary grid 13 of point 111 and a plurality of front, back surface field 16 are equipped with 14,1 longitudinal back side main grids 15 of a plurality of lateral back side main grid, name
For the second solar battery sheet B.
As illustrated in figs. 11-14, the battery strings 10 of the utility model can be set to a row or multi-row battery strings, every row's battery
String includes a second solar battery sheet 1B, the first solar battery sheet 1A of one or more and second solar battery
Piece 1C, the second solar battery sheet 1B, the first solar battery sheet 1A, the second solar battery sheet 1C stack gradually connection.The
Two solar battery sheet 1B, the second solar battery sheet 1C longitudinal main grid be used as battery strings positive and negative anodes.
During arrangement is laminated, adjacent solar battery sheet 1 is connected the utility model by contact 111, Mei Yitai
The contact 111 of the front electrode of positive energy cell piece 1 is set to the back side of preceding a piece of solar battery sheet 1, with preceding a piece of solar-electricity
The contact 111 of the lateral back side main grid 14 of pond piece 1 connects.The long side of adjacent solar battery sheet 1 is overlapped, and forms face contact
20；Adjacent solar battery sheet 1 is connected by contact 111, and by coating conducting resinl, cured formation on contact 111
Battery strings 10.
Pass through series connection between the solar battery sheet 1 of every row's battery strings 10.And when battery strings 10 are set as multiple rows of,
Pass through series connection between the solar battery sheet 1 of single battery strings 10；Between difference row's battery strings 10 by it is in parallel or its
He connects mode, and connection type multiplicity, the utility model is defined not to this.Preferably, between different row's battery strings 10
Connect longitudinal main grid in parallel or series by welding, connection is simple, highly reliable.
Further, the difference embodiment in conjunction with shown in Fig. 1-14, the solar battery sheet 1 are after treatment whole
Piece silicon wafer.The processing successively includes: in the positive back side of 1/2 or 1/4 silicon wafer formation flannelette, diffuses to form PN junction, doping, the back side
Polishing, positive backside deposition passivating film, back side fluting, printing front electrode and back surface field, sintering, anti-LID annealing, stepping are surveyed
Examination.
The utility model incorporates the preparation process of battery strings in conventional solar cells manufacturing process, in regular solar
After the sintering step of battery, conducting resinl is coated at contact, is arranged, is heating and curing, so that it may realize battery using stacking
The connection of string.The process flow of the utility model is relatively simple, and each processing step is all more mature, and incorporates the common sun
In energy battery manufacturing process, the probability to malfunction in manufacturing process is reduced, the reliability of product is increased.
Preferably, the width of the contact 111 is at least bigger by 20% than the width of lateral main grid.When the width of the contact 111
When degree bigger than the width of lateral main grid 20%, it is ensured that adjacent solar battery sheet passes through the connected stabilization of lateral main grid
Property, reduce series resistance and resistance loss.When the width of contact 111 greatly to certain proportion when, contact 111 and contact 111 it
Between be connected, form a longitudinal main grid.
More preferably, the width of the contact 111 is 20-50% bigger than the width of lateral main grid, it is ensured that the adjacent sun
Energy cell piece 1 passes through the connected stability of lateral main grid, reduces series resistance and resistance loss, is obviously improved the function of component
Rate.Moreover, it is also possible to save the slurry of overlapping region, make with the implementation of lower cost.When the width of contact is than lateral main grid
When the big 20-50% of width, series resistance and resistance loss can be additional to reduce under the premise of the utility model base case
25%.
Correspondingly, a kind of preparation method of direct-connected solar cell module of fragment single side is also disclosed in the utility model, such as scheme
Shown in 15, comprising:
S101, full wafer silicon wafer is pre-processed, and prints front electrode, back surface field and back side master in silicon chip surface
Grid, drying.
Specifically, printing front electrode, back surface field and back side main grid in silicon wafer according to the design of electrode.
S102, high temperature sintering is carried out to full wafer silicon wafer, makes slurry curing.
S103, anti-LID annealing is carried out to full wafer silicon wafer, and stepping is tested.
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.
It should be noted that anti-LID annealing just refers to anti-photoluminescence decaying annealing.
S104, full wafer silicon wafer is cut into 1/2 or 1/4, obtains solar battery sheet.
S105, conducting resinl is printed on contact.
S106, solar battery sheet is arranged along the boundary layer where contact is folded one by one, adjacent solar battery sheet is logical
Contact connection is crossed, battery strings are formed.
S107, it is heating and curing to battery strings, and is packaged into the direct-connected component of single side.
Correspondingly, the preparation method of another direct-connected solar cell module of fragment single side is also disclosed in the utility model, such as
Shown in Figure 16, comprising:
S201, full wafer silicon wafer is pre-processed, then full wafer silicon wafer is cut into 1/2 or 1/4, obtain solar battery
Piece；
S202, in solar battery sheet surface printing front electrode, back surface field and back side main grid, drying；
S203, high temperature sintering is carried out to solar battery sheet, makes slurry curing；
S204, anti-LID annealing is carried out to solar battery sheet, and stepping is tested；
S205, conducting resinl is printed on contact；
S206, solar battery sheet is arranged along the boundary layer where contact is folded one by one, adjacent solar battery sheet is logical
Contact connection is crossed, battery strings are formed；
S207, it is heating and curing to battery strings, and is packaged into the direct-connected component of single side.
Further, described pre-process includes:
(1.1) flannelette is formed in front side of silicon wafer；
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.
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 direct-connected solar cell module of fragment single side, including at least two solar battery sheets, the solar battery
Piece stacks gradually arrangement, forms battery strings, which is characterized in that the solar battery sheet is 1/2 or 1/4 silicon wafer；
The solar battery sheet includes the first solar battery sheet；
First solar battery sheet includes the first front electrode and the first back surface field, first front electrode, first
Back surface field is equipped with lateral main grid and contact, and the contact is set to the end of lateral main grid；
The long side of adjacent solar battery sheet is overlapped, and forms face contact；
Adjacent solar battery sheet is connected by contact, and by coating conducting resinl, cured formation battery strings on contact；
The width of the contact is 20-50% bigger than the width of lateral main grid；
The area of the overlapping region of adjacent solar battery sheet is the 0.5-20% of monolithic solar cell piece area.
2. the direct-connected solar cell module of fragment single side as described in claim 1, which is characterized in that the solar battery sheet is
By pretreated 1/2 or 1/4 silicon wafer.
3. the direct-connected solar cell module of fragment single side as claimed in claim 1 or 2, which is characterized in that first solar energy
The lateral main grid in the front of cell piece and back side transverse direction main grid are equipped with contact, and the contact is set to the end of lateral front main grid；
The contact of the lateral main grid in front of each solar battery sheet is set to the back side of preceding a piece of solar battery sheet, and preceding a piece of
The contact of the back side transverse direction main grid of solar battery sheet connects.
4. the direct-connected solar cell module of fragment single side as claimed in claim 3, which is characterized in that the contact is round touching
Point, rectangular contacts, regular polygon contact or linear contact.
5. the direct-connected solar cell module of fragment single side as described in claim 1, which is characterized in that the solar battery sheet is also
Including the second solar battery sheet, the second solar battery sheet includes the second front electrode and the second back surface field, and described second
Front electrode, the second back surface field are equipped at least one of lateral main grid, second front electrode, the second back surface field
Equipped with longitudinal main grid, the longitudinal direction main grid is connect with lateral main grid.
6. the direct-connected solar cell module of fragment single side as claimed in claim 5, which is characterized in that the solar battery sheet packet
Include the second solar battery sheet A, the second solar battery sheet B and the first solar battery sheet；
The front electrode of the second solar battery sheet A includes a plurality of lateral front main grid, 1 longitudinal front main grid and a plurality of
Positive pair grid, back surface field are equipped with a plurality of lateral back side main grid, set on the contact of lateral back side main grid end；
The front electrode of the second solar battery sheet B includes a plurality of lateral front main grid, is set to lateral front main grid end
Contact and a plurality of secondary grid in front, back surface field be equipped with a plurality of lateral back side main grid, 1 longitudinal back side main grid；
The front electrode of first solar battery sheet includes a plurality of lateral front main grid, set on lateral front main grid end
The secondary grid in contact and a plurality of front, back surface field are equipped with a plurality of lateral back side main grid, set on the contact of lateral back side main grid end；
Second solar battery sheet A, the first solar battery sheet, the second solar battery sheet B stack gradually connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821251720.5U CN209641666U (en) | 2018-08-03 | 2018-08-03 | The direct-connected solar cell module of fragment single side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821251720.5U CN209641666U (en) | 2018-08-03 | 2018-08-03 | The direct-connected solar cell module of fragment single side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209641666U true CN209641666U (en) | 2019-11-15 |
Family
ID=68470970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821251720.5U Active CN209641666U (en) | 2018-08-03 | 2018-08-03 | The direct-connected solar cell module of fragment single side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209641666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244160A (en) * | 2018-08-03 | 2019-01-18 | 浙江爱旭太阳能科技有限公司 | The direct-connected solar cell module of fragment single side and preparation method |
-
2018
- 2018-08-03 CN CN201821251720.5U patent/CN209641666U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244160A (en) * | 2018-08-03 | 2019-01-18 | 浙江爱旭太阳能科技有限公司 | The direct-connected solar cell module of fragment single side and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108987509A (en) | Two-sided imbrication solar cell module and preparation method | |
| CN108987516A (en) | Latticed two-sided direct-connected solar cell module and preparation method | |
| CN109216478A (en) | Single side imbrication solar cell module and preparation method | |
| US20160351741A1 (en) | High-Efficiency N-Type Bifacial Solar Cell | |
| CN108922929A (en) | The two-sided imbrication solar cell module of perforation and preparation method | |
| CN107039544B (en) | P-type PERC double-sided solar cell and preparation method, assembly and system thereof | |
| CN110459638A (en) | A kind of IBC battery and preparation method thereof of Topcon passivation | |
| CN109326664A (en) | The direct-connected solar cell module of single side and preparation method | |
| CN108987510A (en) | The direct-connected solar cell module of latticed single side and preparation method | |
| CN108922934A (en) | Two-sided direct-connected solar cell module and preparation method | |
| CN208674136U (en) | The two-sided direct-connected solar cell module of fragment perforation | |
| CN109244160A (en) | The direct-connected solar cell module of fragment single side and preparation method | |
| CN209708987U (en) | Single side imbrication solar cell module | |
| CN209641666U (en) | The direct-connected solar cell module of fragment single side | |
| CN208674134U (en) | The two-sided direct-connected solar cell module of fragment | |
| CN108987507A (en) | The direct-connected solar cell module of fragment single side and preparation method | |
| CN109037364A (en) | The two-sided direct-connected solar cell module of fragment perforation and preparation method | |
| CN208674135U (en) | The two-sided direct-connected solar cell module of fragment | |
| CN208753341U (en) | The latticed direct-connected solar cell module of single side | |
| CN208753350U (en) | Latticed two-sided direct-connected solar cell module | |
| US11984518B2 (en) | Photovoltaic module | |
| CN104124287B (en) | A kind of single crystal silicon solar cell back surface gate line electrode structure and single crystal silicon solar cell | |
| CN109037365A (en) | Perforation single side imbrication solar cell module and preparation method | |
| CN209708995U (en) | Two-sided imbrication solar cell module | |
| CN109244153A (en) | The two-sided direct-connected solar cell module of fragment and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |