CN207651505U - Cell piece and printing screen plate - Google Patents
Cell piece and printing screen plate Download PDFInfo
- Publication number
- CN207651505U CN207651505U CN201721920085.0U CN201721920085U CN207651505U CN 207651505 U CN207651505 U CN 207651505U CN 201721920085 U CN201721920085 U CN 201721920085U CN 207651505 U CN207651505 U CN 207651505U
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- cell piece
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 23
- 239000010703 silicon Substances 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 abstract description 31
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000003475 lamination Methods 0.000 abstract description 5
- 239000011800 void material Substances 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- Electrodes Of Semiconductors (AREA)
Abstract
The utility model provides a kind of cell piece and printing screen plate, the cell piece includes silicon chip and is printed on the gate line electrode of silicon chip surface, the gate line electrode includes main grid and secondary grid, the main grid includes the branch line for extending in a first direction the main line of setting and being extended to form from the main line end furcations, and the main grid further includes extending and being located at the guide wire that the end is formed by between branch line from the end of the main line；The printing screen plate has the open-work area that the pattern with the gate line electrode matches.During the utility model welding of battery film, the tin on welding can be flowed along guide wire, avoided tin material from locally building up and led to failure welding and lamination sliver；The printing screen plate effectively solve half chip of existing compatibility, the printing of full slice system cell piece the follow-up welding process of full slice system cell piece printed of printing screen plate in, there is tin material between the adjacent main line of head and the tail and assemble, the problems such as local welding pulling force is insufficient.
Description
Technical field
The utility model is related to technical field of solar cell manufacturing more particularly to a kind of cell pieces and printing screen plate.
Background technology
Photovoltaic application is research field with fastest developing speed in recent years, most active, and crystal silicon solar energy battery technology also takes
It obtains constantly development and improves.Wherein, half chip cell piece in efficient photovoltaic module more has application, existing manufacturer to mostly use
The printing screen plate that compatible half chip, full slice system cell piece print, 200 (such as Fig. 1 of full slice system cell piece of above-mentioned printing screen plate printing
It is shown) gate line electrode include main grid 201, secondary grid 202 and several pads 203 being set on main grid 201.The cell piece 200
In follow-up welding process, 201 centre position of main grid will appear tin material unsmooth flowing, and part is built up, and influences to weld pulling force, even go out
Now it is laminated sliver.On the other hand, cell piece front gate line electrode has gradually been developed to now that five very by two original main grids
And more main grids, main grid number increase the shading-area that can not only greatly reduce cell piece, reducing Ag starches unit consumption, reduces
Cell piece production cost；The distance that the electric current on secondary grid is transmitted to main grid can also be shortened, cell series resistance is reduced, to carry
High battery conversion efficiency.But the main grid width using the cell piece of more main grids is thinner, general during manufacturing photovoltaic module
Using a diameter of 0.35mm or so, the round welding that tin thickness is 15 μm, such welding of battery film more needs to avoid tin in the process
Material build up and may caused by failure welding and lamination sliver the problems such as.
In consideration of it, it is necessary to provide a kind of new cell pieces and printing screen plate.
Utility model content
The purpose of this utility model is to provide a kind of cell piece and printing screen plate, during capable of avoiding welding of battery film
There is tin material locally to build up and lead to failure welding and lamination sliver.
To realize above-mentioned purpose of utility model, the utility model provides a kind of cell piece, including silicon chip and is printed on silicon
The gate line electrode on piece surface, the gate line electrode include main grid and secondary grid, and the main grid includes extending in a first direction setting
Main line and the branch line extended to form from the main line end furcations, the main grid further include prolonging from an at least end for the main line
Stretch and be located at the guide wire that the end is formed by between branch line.
The utility model also provides another cell piece, including silicon chip and the gate line electrode for being printed on silicon chip surface, described
Gate line electrode includes main grid and secondary grid, and the main grid extends in a first direction including at least two and in first direction head and the tail
The main line being disposed adjacent, the branch line extended to form from the main line end furcations, the main grid further include from described at least one
The guide wire that the end of main line extends towards another main line, the guide wire are located at the main line end that it is connected and are formed by branch
Between line.
The guide wire extends in a first direction setting, and the guide wire as a further improvement of the utility model,
It is less than development length of the corresponding branch line in the end along the first direction along the development length of the first direction.
As a further improvement of the utility model, the main grid further include it is several be arranged at intervals at along first direction it is described
Pad on main line.
The end of the main line is equipped with the pad, the branch line and guiding as a further improvement of the utility model,
Line is all connected on the corresponding pad in main line end.
The branch line for being connected to the same end of the main line as a further improvement of the utility model, is set as two and two
Branch line described in item is symmetrical arranged with respect to the main line.
The spacing of two branch lines exceeds the pad perpendicular to first as a further improvement of the utility model,
Extension width in the second direction in direction.
The secondary grid are along the second direction extension perpendicular to first direction and institute as a further improvement of the utility model,
It includes the first secondary grid and the second secondary grid to state secondary grid, and the described first secondary grid are connected on the pad locations with main grid；Described second is secondary
Grid include the spaced interruption part of several head and the tail, and each interruption part is connected at least one main grid.
The utility model also provides a kind of printing screen plate, the printing of the gate line electrode for cell piece, the printing screen plate
Including silk screen main body and it is set to the mask layers of silk screen body surfaces, the silk screen main body is formed with evenly arranged mesh, institute
It states mask layer and covers part mesh in the silk screen main body, to form open-work area and the shielded area adjacent with the open-work area；
The open-work area includes main grid area and secondary grid region, the main grid area include at least two main lines area extended in a first direction, from
The extended branch line area of the end furcations in the main line area, the main grid area further includes the end from at least one main line area
Hold the guiding area that extends towards another main line area, the guiding area be located at branch line area that the main line area corresponding to it is connected it
Between.
The utility model has the beneficial effects that：During the utility model welding of battery film, tin on welding can be along leading
Lead flows, and avoids tin material from locally building up and leads to failure welding and lamination sliver；The printing screen plate effectively solves existing simultaneous
Hold half chip, in the follow-up welding process of full slice system cell piece that the printing screen plate of full slice system cell piece printing is printed, it is first
Occur the assembly of tin material, the problems such as local welding pulling force is insufficient between the adjacent main line of tail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the gate line electrode of existing cell piece；
Fig. 2 is the structural schematic diagram of one better embodiment of the utility model cell piece；
Fig. 3 is the close-up schematic view of cell piece a-quadrant in Fig. 2；
Fig. 4 is the structural schematic diagram of another better embodiment of the utility model cell piece.
Specific implementation mode
The utility model is described in detail below with reference to embodiment shown in the drawings.But the embodiment is not
Limit the utility model, structure that those skilled in the art are made according to the embodiment, method or functionally
Transformation is all contained in the scope of protection of the utility model.
Join shown in Fig. 2, the utility model provides a kind of cell piece 100, including silicon chip 10 and is printed on 10 surface of silicon chip
Gate line electrode 20, the gate line electrode 20 includes main grid 21 and secondary grid 22.
In conjunction with shown in Fig. 3, the main grid 21 includes at least two main lines 211 that extend in a first direction and from the main line
The branch line 212 that 211 end furcations extend to form, at least two main lines 211 are adjacent in first direction head and the tail and pass through
Corresponding branch line 212 is connected with each other.In the present embodiment, the main grid 21 that the gate line electrode 20 has a plurality of specification consistent, institute
Main grid 21 is stated uniformly to arrange along the second direction perpendicular to first direction.Each main grid 21 all has two main lines 211, even
The branch line 212 for being connected to 211 same end of the main line is set as two and two branch lines 212 are symmetrical with respect to the main line 211
Setting.Two adjacent from beginning to end opposite ends of the main line 211 each extend over the branch line 212 to be formed and are connected with each other, so that
It is the one void region S of centre position formation of corresponding main grid 21 between the adjacent main line 211 of two head and the tail.The main grid 21 also wraps
The guide wire 213 extended from the end of at least one main line 211 towards another main line 211 is included, the guide wire 213 extends
Into inside the void region S, and the guide wire 213 is between corresponding two branch lines 212.The cell piece
In 100 welding processes, by tin material and the mutually infiltration of the silver in the guide wire 213 on welding surface, and make on welding
Tin is flowed along the guide wire 213 towards corresponding main line 211, avoids the welding being soldered on the main grid 21 in void region
S assembles tin sweat(ing), influences welding quality.
The guide wire 213 is extended along the first direction, and the prolonging along the first direction of the guide wire 213
Elongation is less than development length of the corresponding branch line 212 in the end along the first direction.Herein, the branch line 212 is along first
The development length in direction is consistent, i.e., so that the guide wire 213 extends in a first direction the center without departing from the void region S
Position.Thereby, the cell piece 100 is in a second direction and after the centers the void region S are cut, the guide wire
There is gap 213 end with the cut edge of silicon chip 10.
The main grid 21 further includes several pads 214 being arranged at intervals at along first direction on the main line 211.The master
The end of line 211 is equipped with the pad 214, and the end that the branch line 212 and guide wire 213 are all connected to the main line 211 is corresponding
Pad 214 on.Wherein, the specification phase of welding used by the width of the pad 214 is welded with the cell piece 100
Match, the spacing for being connected to two branch lines 212 of the same pad 214 exceeds the width of the pad 214, to prevent from welding
Be connected between the welding of main grid 21 and branch line 212 and interfere with each other, so cause the marginal portion of the silicon chip 10 welding and after
Chipping breakage in continuous lamination process.
The pair grid 22 include the 221 and second secondary grid 222 of the first secondary grid being extended along the second direction.Described
One secondary grid 221 are connected on the pad 214 with main grid 21；Described second secondary grid 222 include the spaced interruption of several head and the tail
Part, each interruption part are connected at least one main grid 21, thereby, reduce the shading-area on 10 surface of silicon chip,
Reduce silver paste consumption.
It is in the third pair grid 223 of ring-like extension, the third pair that the pair grid 22, which further include along the edge of the silicon chip 10,
Grid 223 are collecting the electric current of 10 edge corresponding region of the silicon chip.Except this, when being connected to the first of the third pair grid 223
The secondary grid of secondary grid 221, second 222 occur accident break grid when, the third pair grid 223 can also will the 221, second pair of corresponding first pair grid
Electric current collected by grid 222 is transferred to main grid 21, it is ensured that the performance of cell piece 100.Particularly, the secondary grid 22 further include along the
Two articles of fourth officer grid 224 that two directions extend, the both ends of the fourth officer grid 224 connect with the third pair grid 223.Two
The fourth officer grid 224 are disposed adjacent along the first direction and positioned at the centre positions of the silicon chip 10, i.e., so that described the
Fourth officer grid 224 are connected on the main grid 21 on the branch line 212 for constituting the void region S.
It is 100 ＇ of another cell piece provided by the utility model referring to Fig. 4,100 ＇ of the cell piece includes 10 ＇ of silicon chip and print
20 ＇ of gate line electrode on 10 surfaces ＇ of silicon chip is made, 20 ＇ of the gate line electrode includes 21 ＇ of main grid and 22 ＇ of secondary grid.21 ＇ of the main grid
Including extend in a first direction setting 211 ＇ of main line, 212 ＇ of branch line extended to form from 211 ＇ end furcations of the main line and
213 ＇ of guide wire extended to form from an at least end of 211 ＇ of the main line.213 ＇ of the guide wire is located at its corresponding end
Between two 212 ＇ of branch line connected, 213 ＇ of the guide wire extend in a first direction and the end of 213 ＇ of the guide wire with
There is gap at the edge of 10 ＇ of the silicon chip, interferes work to reduce extruding of 213 ＇ of the guide wire with welding at 10 edges ＇ of silicon chip
With, and reduce the electric leakage risk being likely to occur.
Herein, 100 ＇ of the cell piece for half chip cell piece and the half chip cell piece by the cell piece 100 along institute
Second direction is stated to be made from segmentation among two articles of fourth officer grid 224.The cell piece 100 is from two articles of fourth officer grid
Among 224 after cutting separation, the fourth officer grid 224 are collectively formed with the third pair grid 223 along 100 ＇'s of the cell piece
The grid line that edge ring-type extends.
The utility model also provides a kind of printing screen plate (not shown), for cell piece 100,100 ＇ gate line electrode 20,
The printing of 20 ＇, the printing screen plate include silk screen main body and the mask layer for being set to silk screen body surfaces, the silk screen main body shape
At thering is evenly arranged mesh, the mask layer to cover the part mesh in the silk screen main body, with formed open-work area and with institute
State the adjacent shielded area in open-work area.The open-work area and the pattern of the gate line electrode 20 of the cell piece 100 match, specifically
Ground, the open-work area include main grid area and secondary grid region, the main grid area include at least two main lines area extended in a first direction,
The branch line area extended from the end furcations in the main line area, the main grid area further include from at least one main line area end
Hold the guiding area that extends towards another main line area, the guiding area be located at branch line area that the main line area end corresponding to it is connected it
Between.
In conclusion in the utility model cell piece 100,100 ＇ welding processes, the tin material on welding can be along guide wire
213 flowings are collected to the pad 214 of 211 end of main line, and tin material is avoided locally to be built up in void region S and lead to failure welding,
Even there is succeeding layer pressure break piece, moreover it is possible to enhance the welding pulling force of pad.Correspondingly, the printing screen plate can be preferably compatible with
The printing of half chip cell piece 100 ＇, full slice system cell piece 100 improve the follow-up of the cell piece 100,100 ＇ that it prints
Welding, laminate quality.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiment of understanding.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body illustrates that they are all without departing from made by the utility model skill spirit not to limit the scope of protection of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of cell piece, including silicon chip and the gate line electrode for being printed on silicon chip surface, the gate line electrode includes main grid and pair
Grid, the main grid include the branch line for extending in a first direction the main line of setting and being extended to form from the main line end furcations,
It is characterized in that：The main grid further includes extending from an at least end for the main line and being located at the end to be formed by between branch line
Guide wire.
2. a kind of cell piece, including silicon chip and the gate line electrode for being printed on silicon chip surface, the gate line electrode includes main grid and pair
Grid, the main grid include at least two main lines for extending in a first direction and being disposed adjacent in first direction head and the tail, from institute
State the branch line that main line end furcations extend to form, it is characterised in that：The main grid further includes from the end of at least one main line
The guide wire extended towards another main line, the guide wire is held to be located at the main line end that it is connected and be formed by between branch line.
3. cell piece according to claim 1 or 2, it is characterised in that：The guide wire extends in a first direction setting, and
The guide wire is grown less than the corresponding branch line in the end along the extension of the first direction along the development length of the first direction
Degree.
4. cell piece according to claim 1 or 2, it is characterised in that：The main grid further includes several between first direction
Every the pad being set on the main line.
5. cell piece according to claim 4, it is characterised in that：The end of the main line is equipped with the pad, the branch
Line and guide wire are all connected on the corresponding pad in main line end.
6. cell piece according to claim 4, it is characterised in that：The branch line for being connected to the same end of the main line is set as
Two and two branch lines are symmetrical arranged with respect to the main line.
7. cell piece according to claim 6, it is characterised in that：The spacing of two branch lines is being hung down beyond the pad
Directly in the extension width in the second direction of first direction.
8. cell piece according to claim 4, it is characterised in that：The pair grid are along the second direction perpendicular to first direction
Extend and the secondary grid include the first secondary grid and the second secondary grid, the described first secondary grid are connected on the pad locations with main grid；Institute
It includes the spaced interruption part of several head and the tail to state the second secondary grid, and each interruption part is connected at least one main grid
It connects.
9. a kind of printing screen plate, the printing of the gate line electrode for cell piece, the printing screen plate includes silk screen main body and setting
In the mask layer of silk screen body surfaces, the silk screen main body is formed with evenly arranged mesh, and the mask layer covers the silk
Part mesh on host's body, to form open-work area and the shielded area adjacent with the open-work area；The open-work area includes main grid
Area and secondary grid region, the main grid area include at least two main lines area extended in a first direction, the end point from the main line area
The extended branch line area of fork, it is characterised in that：The main grid area further includes the end direction from at least one main line area
The guiding area that another main line area extends, the guiding area is located between the branch line area that the main line area corresponding to it is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920085.0U CN207651505U (en) | 2017-12-29 | 2017-12-29 | Cell piece and printing screen plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920085.0U CN207651505U (en) | 2017-12-29 | 2017-12-29 | Cell piece and printing screen plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207651505U true CN207651505U (en) | 2018-07-24 |
Family
ID=62876827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721920085.0U Active CN207651505U (en) | 2017-12-29 | 2017-12-29 | Cell piece and printing screen plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207651505U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987495A (en) * | 2018-08-27 | 2018-12-11 | 通威太阳能（合肥）有限公司 | Interdigital full-half compatible front metal electrode |
| CN109119497A (en) * | 2018-08-29 | 2019-01-01 | 晶澳（扬州）太阳能科技有限公司 | A kind of silicon-based solar cell structure |
| CN109273539A (en) * | 2018-10-27 | 2019-01-25 | 江苏东鋆光伏科技有限公司 | 12 main grid cell pieces of one kind and its manufacturing process |
| CN110444614A (en) * | 2019-07-31 | 2019-11-12 | 天合光能股份有限公司 | A kind of efficient TOPCon battery of N-type |
| CN114834146A (en) * | 2021-02-01 | 2022-08-02 | 嘉兴阿特斯技术研究院有限公司 | Preparation equipment and preparation method of half battery |
-
2017
- 2017-12-29 CN CN201721920085.0U patent/CN207651505U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987495A (en) * | 2018-08-27 | 2018-12-11 | 通威太阳能（合肥）有限公司 | Interdigital full-half compatible front metal electrode |
| CN109119497A (en) * | 2018-08-29 | 2019-01-01 | 晶澳（扬州）太阳能科技有限公司 | A kind of silicon-based solar cell structure |
| CN109119497B (en) * | 2018-08-29 | 2024-04-05 | 晶澳（扬州）太阳能科技有限公司 | Silicon-based solar cell structure |
| CN109273539A (en) * | 2018-10-27 | 2019-01-25 | 江苏东鋆光伏科技有限公司 | 12 main grid cell pieces of one kind and its manufacturing process |
| CN110444614A (en) * | 2019-07-31 | 2019-11-12 | 天合光能股份有限公司 | A kind of efficient TOPCon battery of N-type |
| CN114834146A (en) * | 2021-02-01 | 2022-08-02 | 嘉兴阿特斯技术研究院有限公司 | Preparation equipment and preparation method of half battery |
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| GR01 | Patent grant | ||
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Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: CSI Cells Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: YANCHENG DAFENG CANADIAN SOLAR ELECTRIC POWER TECHNOLOGY Co.,Ltd. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI Cells Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: YANCHENG DAFENG CANADIAN SOLAR ELECTRIC POWER TECHNOLOGY Co.,Ltd. |