CN208256683U - A kind of electrode structure at right side and solar battery of more main grid batteries - Google Patents
A kind of electrode structure at right side and solar battery of more main grid batteries Download PDFInfo
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- CN208256683U CN208256683U CN201820897922.0U CN201820897922U CN208256683U CN 208256683 U CN208256683 U CN 208256683U CN 201820897922 U CN201820897922 U CN 201820897922U CN 208256683 U CN208256683 U CN 208256683U
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- 238000003466 welding Methods 0.000 abstract description 36
- 238000000034 method Methods 0.000 abstract description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910001128 Sn alloy Inorganic materials 0.000 description 4
- QCEUXSAXTBNJGO-UHFFFAOYSA-N [Ag].[Sn] Chemical compound [Ag].[Sn] QCEUXSAXTBNJGO-UHFFFAOYSA-N 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Abstract
The utility model provides the electrode structure at right side and solar battery of a kind of more main grid batteries, including main gate line, pad and secondary grid line, and the main gate line and secondary grid line intersect vertically, and multiple pads are provided in main gate line；The secondary grid line is made of straightway and deformation section, deformation section is arranged in secondary grid line and main gate line junction, the width of deformation section gradually broadens from straightway end to main gate line, and the height of deformation section is higher than the height of straightway, and deformation section overall width is more than or equal to pad width.The utility model, which can well solve, solves the problems, such as more main grid welding batteries secondary grid line welding breaking in the process.
Description
Technical field
The utility model belongs to area of solar cell, in particular to the electrode structure at right side of a kind of more main grid batteries and too
Positive energy battery.
Background technique
More main grid solar cells (main gate line quantity >=10 piece) on the one hand can greatly improve battery efficiency, on the other hand may be used
Silver paste consumption and manufacturing cost is effectively reduced, industry focus of attention is had become at present.
The electrode structure at right side of more main grid batteries generally comprises longitudinal 10~30 front electrode main gate lines and a plurality of pair
Grid line, every main gate line and secondary grid line are mutually perpendicular to and intersect, and main gate line is continuous solid line, are provided with multiple welderings in main gate line
Disk, for realizing welding welding and battery series connection.
Welding generally uses diameter for the tin plating round welding of 0.2~0.5mm.
During battery series welding, welding and main gate line and pad are formed while welding because main grid line width obviously compared with
Welding wants narrow, and main gate line and welding inevitably have contraposition deviation, so the secondary grid that welding and main gate line intersect vertically
Line may also will form welding.
Secondary grid line be reduce shading, reduce silver paste consumption, print it is more thinner better, and height it is lower, so silver paste total amount compared with
It is few.Formed in welding process with welding, tin is relatively excessive, it may occur that secondary grid line silver paste near welding it is all or part of with
Molten tin forms silver-tin alloy, causes secondary grid line with the fracture of welding junction or portion fractures, the lower display of EL test after welding
It is broken string or component after cold cycling TC test, more crisp silver-tin alloy is broken, and is shown as breaking under EL.It eventually leads to
Component series resistance rises, and power decline has seriously affected product quality and reliability.
Therefore, how to solve the problems, such as more main grid welding batteries secondary grid line welding breaking in the process, be that solution is badly in need of in this field
One of certainly the technical issues of.
Utility model content
To solve the problems, such as secondary grid line welding breaking during more main grid welding batteries, it is more that the utility model provides one kind
The electrode structure at right side and preparation method thereof of main grid battery.
To achieve the above object, the technical solution of the utility model is,
A kind of electrode structure at right side of more main grid batteries, including main gate line, pad and secondary grid line, the main gate line and pair
Grid line intersects vertically, and multiple pads are provided in main gate line；The secondary grid line is made of straightway and deformation section, and deformation section is set
It sets in secondary grid line and main gate line junction, the width of deformation section gradually broadens from straightway end to main gate line, the height of deformation section
Degree is higher than the height of straightway.
The spindle shape of the deformation Duan Weicheng gradual change, the center line of deformation section are vertical with main gate line.
The deformation section is arranged by axial symmetry of main gate line.
The overall width W1 of the main gate line and both sides deformation section is more than or equal to pad width W2.
The main gate line is continuous solid line, and width is 0.05~0.2mm.
The pad width is 0.5~1.5mm.
The straightway of the secondary grid line is the continuous solid line vertical with main gate line.
A kind of solar battery, using the electrode structure at right side.
Compared with prior art, the utility model has the beneficial effects that
The utility model provides a kind of electrode structure at right side of more main grid batteries, by by the pair with main gate line junction
The deformation area of grid region is designed to loudspeaker openning shape, and improving it in such a way that single prints or separates printing
The width and height of printing have generally increased the silver paste total amount in the region, avoid the secondary grid line silver in the region in welding process
Slurry all forms silver-tin alloy with tin, and causes secondary grid line with the fracture of welding junction or after component cold cycling TC test
The case where fracture；The utility model passes through the design by loudspeaker opening transverse width more than or equal to pad width, it is ensured that main gate line
With welding, there are in the case where contraposition deviation, will not being broken with the secondary grid line of welding junction during actual welding.
The utility model is changed by simple halftone design alteration or mode of printing, improves the silver with welding contact area pair grid line
Total amount is starched, the generation for welding disconnected grid in welding process is avoided, method is simple, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the utility model battery front side Local map；
Fig. 2 is the utility model battery front side partial enlarged view；
Wherein: 1- main gate line, 2- deformation section, 3- pad, 4- pair grid line, 5- straightway, W1- deformation section overall width, W2- weldering
Disk width.
Specific embodiment
The technology of the utility model is described in detail with reference to the accompanying drawing:
Embodiment 1
As depicted in figs. 1 and 2,4 knot of a kind of front main grid line 1 of more main grid batteries of the utility model, pad 3 and secondary grid line
Structure, main gate line 1 and secondary grid line 4 intersect vertically, and multiple pads 3 are provided in main gate line 1.Main gate line 1 is continuous solid line, wide
Degree is 0.05~0.2mm；Multiple pads 3 are provided in main gate line 1,3 width of pad is 0.5~1.5mm.The main body of secondary grid line 4
Straightway is the continuous solid line vertical with main gate line 1.
As shown in Fig. 2, secondary grid line 4 is made of straightway 5 and deformation section 2, deformation section 2 joins in secondary grid line 4 with main gate line 1
Place, deformation section 2 are in the loudspeaker openning shape (generally spindle shape) of gradual change, are open with 1 junction of main gate line larger, along secondary grid line
4 directions are tapered, finally at wide secondary grid line 4.1 both sides of main gate line have symmetrical loudspeaker to be open, and transverse width is big
In being equal to pad width, height is higher than the height of secondary grid line itself.
Preparation method first is that:
Front electrode is printed using single, and halftone design is designed to that loudspeaker are open with 1 junction of main gate line in secondary grid line 4
Shape, because loudspeaker opening width is obviously wide compared with 4 width of normal secondary grid line, so the relatively normal secondary grid line 4 of practical printing height wants high.
Preparation method second is that:
Front electrode is first printed wide secondary grid line 4, is then carried out drying and processing, republish main grid using separation printing
The loudspeaker open area of line 1, pad 4 and secondary grid line and main gate line junction.
The cross central line of loudspeaker open area 2 is overlapped with secondary 4 center line of grid line, on the one hand can pass through secondary printing
Halftone design improves printing height, on the other hand, the secondary grid line 4 of the loudspeaker road opening You Qian printing, so its height is obviously high
In secondary grid line 4.
The principle of the electrode structure at right side of the more main grid batteries of the utility model are as follows: by by the pair with 1 junction of main gate line
4 region of grid line is designed to loudspeaker openning shape, and improving the width of its printing in such a way that single prints or separates printing
Degree and height, have generally increased the silver paste total amount in the region, avoid the secondary grid line silver paste in the region in welding process all with
Tin forms silver-tin alloy, and secondary grid line 4 is caused to be broken with welding junction or be broken after component cold cycling TC test
Situation.
The utility model is more than or equal to the design of pad width W2 by deformation section overall width W1, it is ensured that main gate line 1 and weldering
Band during actual welding with the secondary grid line of welding junction, there are in the case where contraposition deviation, will not being broken.Pass through
Simple halftone design alteration or mode of printing change, improve the silver paste total amount with welding contact area pair grid line, avoid
The generation of disconnected grid is welded in welding process, method is simple, it is easy to accomplish.
Embodiment 2
A kind of solar battery, using front main grid structure described in embodiment 1.
In addition, the above embodiment of the utility model is embodiment, have and claims of the utility model
Technical idea is allowed to identical method and plays the technical solution of identical function and effect, is all contained in the utility model.
Claims (8)
1. a kind of electrode structure at right side of more main grid batteries, it is characterised in that: including main gate line (1), pad (3) and secondary grid line
(4), the main gate line (1) and secondary grid line (4) intersect vertically, and multiple pads (3) are provided in main gate line (1)；The pair
Grid line (4) is made of straightway (5) and deformation section (2), and deformation section (2) is arranged in secondary grid line (4) and main gate line (1) junction,
The width of deformation section (2) gradually broadens from straightway (5) end to main gate line (1), and the height of deformation section (2) is higher than straightway
(5) height.
2. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the deformation section
(2) in the spindle shape of gradual change, the center line of deformation section (2) is vertical with main gate line (1).
3. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the deformation section
It (2) is axial symmetry arrangement with main gate line (1).
4. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the main gate line
(1) and the overall width W1 of both sides deformation section (2) is more than or equal to pad width W2.
5. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the main gate line
It (1) is continuous solid line, width is 0.05~0.2mm.
6. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the pad
(3) width is 0.5~1.5mm.
7. a kind of electrode structure at right side of more main grid batteries according to claim 1, it is characterised in that: the secondary grid line
(4) straightway (5) is the continuous solid line vertical with main gate line (1).
8. a kind of solar battery, it is characterised in that: using electrode structure at right side described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897922.0U CN208256683U (en) | 2018-06-11 | 2018-06-11 | A kind of electrode structure at right side and solar battery of more main grid batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897922.0U CN208256683U (en) | 2018-06-11 | 2018-06-11 | A kind of electrode structure at right side and solar battery of more main grid batteries |
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| Publication Number | Publication Date |
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| CN208256683U true CN208256683U (en) | 2018-12-18 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111081795A (en) * | 2019-12-31 | 2020-04-28 | 中威新能源(成都)有限公司 | Solar cell, solar module structure and preparation method of solar cell and solar module structure |
| CN111114108A (en) * | 2020-01-06 | 2020-05-08 | 江西展宇新能源股份有限公司 | A solar cell front electrode screen |
| CN111916508A (en) * | 2020-08-21 | 2020-11-10 | 成都晔凡科技有限公司 | Solar cell, laminated tile assembly and manufacturing method |
| CN112133767A (en) * | 2019-06-24 | 2020-12-25 | 泰州隆基乐叶光伏科技有限公司 | Solar cell and manufacturing method thereof |
| CN112420853A (en) * | 2019-08-21 | 2021-02-26 | 苏州阿特斯阳光电力科技有限公司 | Multi-busbar solar cells and solar modules |
| WO2021232723A1 (en) * | 2020-05-19 | 2021-11-25 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell assembly |
| NL2033600A (en) * | 2022-01-13 | 2023-07-19 | Jinko Solar Co Ltd | Solar module |
| CN117317038A (en) * | 2023-10-10 | 2023-12-29 | 天合光能股份有限公司 | Solar cell and preparation method thereof |
| CN118448481A (en) * | 2024-07-08 | 2024-08-06 | 杭州晶宝新能源科技有限公司 | Solar cell and preparation method thereof |
| US12094991B2 (en) | 2019-11-13 | 2024-09-17 | Maxeon Solar Pte. Ltd. | Hybrid dense solar cells and interconnects for solar modules and related methods of manufacture |
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- 2018-06-11 CN CN201820897922.0U patent/CN208256683U/en active Active
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| US12148846B2 (en) | 2019-06-24 | 2024-11-19 | Longi Solar Technology (Taizhou) Co., Ltd. | Solar cell and a manufacturing method therefor |
| CN112133767A (en) * | 2019-06-24 | 2020-12-25 | 泰州隆基乐叶光伏科技有限公司 | Solar cell and manufacturing method thereof |
| CN112420853A (en) * | 2019-08-21 | 2021-02-26 | 苏州阿特斯阳光电力科技有限公司 | Multi-busbar solar cells and solar modules |
| CN112420853B (en) * | 2019-08-21 | 2023-04-18 | 苏州阿特斯阳光电力科技有限公司 | Multi-main-grid solar cell and solar module |
| US12094991B2 (en) | 2019-11-13 | 2024-09-17 | Maxeon Solar Pte. Ltd. | Hybrid dense solar cells and interconnects for solar modules and related methods of manufacture |
| CN111081795A (en) * | 2019-12-31 | 2020-04-28 | 中威新能源(成都)有限公司 | Solar cell, solar module structure and preparation method of solar cell and solar module structure |
| CN111081795B (en) * | 2019-12-31 | 2025-05-06 | 通威太阳能（成都）有限公司 | A solar cell, a module structure and a method for preparing the same |
| CN111114108A (en) * | 2020-01-06 | 2020-05-08 | 江西展宇新能源股份有限公司 | A solar cell front electrode screen |
| WO2021232723A1 (en) * | 2020-05-19 | 2021-11-25 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell assembly |
| US12154999B2 (en) | 2020-05-19 | 2024-11-26 | Longi Solar Technology (Taizhou) Co., Ltd. | Back contact solar cell assembly |
| CN111916508A (en) * | 2020-08-21 | 2020-11-10 | 成都晔凡科技有限公司 | Solar cell, laminated tile assembly and manufacturing method |
| NL2033600A (en) * | 2022-01-13 | 2023-07-19 | Jinko Solar Co Ltd | Solar module |
| EP4224534A3 (en) * | 2022-01-13 | 2023-11-15 | Zhejiang Jinko Solar Co., Ltd. | Solar module |
| US11949027B2 (en) | 2022-01-13 | 2024-04-02 | Zhejiang Jinko Solar Co., Ltd. | Solar module |
| CN117317038A (en) * | 2023-10-10 | 2023-12-29 | 天合光能股份有限公司 | Solar cell and preparation method thereof |
| CN117317038B (en) * | 2023-10-10 | 2025-04-22 | 天合光能股份有限公司 | Solar cell and preparation method thereof |
| CN118448481A (en) * | 2024-07-08 | 2024-08-06 | 杭州晶宝新能源科技有限公司 | Solar cell and preparation method thereof |
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