CN206460964U - A kind of many main grid high efficiency solar cell pieces - Google Patents
A kind of many main grid high efficiency solar cell pieces Download PDFInfo
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- CN206460964U CN206460964U CN201621205510.3U CN201621205510U CN206460964U CN 206460964 U CN206460964 U CN 206460964U CN 201621205510 U CN201621205510 U CN 201621205510U CN 206460964 U CN206460964 U CN 206460964U
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- grid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a kind of many main grid high efficiency solar cell pieces, including front electrode grid line and back side Al-BSF and back electrode, described front electrode grid line includes the positive electrode main gate line of 5 or more than 5 and a plurality of thin grid line of longitudinal direction, and every main gate line is mutually perpendicular to and intersected with described thin grid line；Described back electrode is provided with longitudinal back electrode main grid of 5 or more than 5, and back electrode main grid number and position are corresponding with positive electrode main gate line；Described positive electrode main gate line is that the section of a continuous regular change is main gate line formed by the rectangular section of circular circular node connection rectangular cross-section；Described thin grid line is set to the thin grid line of gradual change type width.The utility model effectively improves cell conversion efficiency, reduces production cost.
Description
Technical field
The utility model is related to a kind of many main grid high efficiency solar cells, belongs to solar battery sheet manufacturing technology neck
Domain.
Background technology
Solar energy power generating, by its cleaning, it is safe and convenient and efficient the features such as, it has also become whole world common concern and
The new industry given priority to.
Solar cell is the semiconductor devices converted solar energy into electrical energy.Battery electrode is the important of solar cell
Part, it guides the photo-generated carrier in cell body to outside batteries；Simultaneously when making solar components plate, it is used for
Welding electrode plays a part of to conduct electric current.
The electrode of solar cell is made up of front electrode and backplate two parts.All be in current industry three or
Four main grids of person, this solar cell main grid is, by screen printing technique, conductive silver paste to be printed on cell piece, then is passed through
Cross the electrode of the cell piece of high temperature sintering formation.
With the raising and the increase of die size of Si wafer quality, the optimization of application process, current three or four
The electrode pattern of main grid can not collect the photo-generated carrier of battery surface completely, it is impossible to maximize cell output, and pass
The electrode coverage product of system is larger, causes the consumption of conductive silver paste excessive.
Therefore the solar cell for seeking a kind of raising cell conversion efficiency and reduction production cost is imperative.
The content of the invention
The purpose of this utility model, which is that manufacture is a kind of, to be improved cell conversion efficiency, reduces the multiple-grid high efficiency of production cost too
Positive energy battery.
What the purpose of this utility model was realized in：
A kind of many main grid high efficiency solar cell pieces, including front electrode grid line and back side Al-BSF and back electrode, its
It is characterized in：Described front electrode grid line includes the positive electrode main gate line of 5 or more than 5 and a plurality of thin grid line of longitudinal direction, often
Bar main gate line is mutually perpendicular to and intersected with described thin grid line；Described back electrode is provided with longitudinal back of the body of 5 or more than 5
Electrode main grid, back electrode main grid number and position are corresponding with positive electrode main gate line；Described positive electrode main gate line is a company
The section of continuous regular change main gate line formed by the rectangular section of circular circular node connection rectangular cross-section；Described
Thin grid line is set to the thin grid line of gradual change type width.
The a diameter of 0.1mm-2mm of circular node of described positive electrode main gate line；Rectangular section in positive electrode main gate line has
The rectangular section of wider width and the rectangular section of narrower width, the width of the rectangular section of wider width is 0.1mm-2mm；Narrower width
Rectangular section width be 0.05mm-1.5mm；The width of described thin grid line is gradual change type width, the wide local width of width
For 0.02mm-0.05mm, the local width of narrow width is 0.01mm-0.04mm.
Described positive electrode main gate line is that two ends have the solid main grid with fork structure.
It is parallel to each other between described positive electrode main gate line, and between symmetrical distribution, and adjacent positive electrode main gate line
Apart from D be front electrode frame length of side L/ main gate line radicals N.
Described back electrode main grid is the back electrode main grid of segmented, and its back electrode main grid section hop count is 1 ~ 8 section, described
Back electrode main grid section is engraved structure, and its pierced pattern can be circular, square, rhombus, ellipse, line strip or irregular
Shape.
Compared with prior art, the utility model has the advantage of：
The design that the utility model passes through many main grids of positive electrode so that the photo-generated carrier that cell piece surface is produced can be
Collected to the full extent, so as to improve the short circuit current flow of battery, improve cell conversion efficiency；Pass through the band at positive electrode two ends
Pitch structure design so that cell piece edge will not be touched when welding of battery film, so as to reduce fragment rate；Pass through back electrode
The hollow out design of main grid section so that the area coverage of conductive silver paste is reduced, so as to reduce the consumption of conductive silver paste, reduction is produced into
This.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the electrode structure at right side schematic diagram of the main grid high efficiency solar cell of the utility model six.
Fig. 2 is the back electrode structure schematic diagram of the main grid high efficiency solar cell of the utility model six.
Fig. 3 is the backplate engraved structure schematic diagram of the main grid high efficiency solar cell of the utility model six.
Wherein：Positive electrode main grid is first（1）, positive-electrode fine grid line（2）, positive electrode main grid band fork structure（3）, back electrode main grid
（4）, back electrode engraved structure（5）.
Embodiment：
A kind of many main grid high efficiency solar cell pieces, including front electrode grid line and back side Al-BSF and back electrode, institute
The front electrode grid line stated includes the positive electrode main gate line of 5 or more than 5 and a plurality of thin grid line of longitudinal direction, every main gate line and
Described thin grid line is mutually perpendicular to and intersected；Described back electrode is provided with longitudinal back electrode main grid of 5 or more than 5,
Back electrode main grid number and position are corresponding with positive electrode main gate line；Described positive electrode main gate line is one continuous regular
The section of change main gate line formed by the rectangular section of circular circular node connection rectangular cross-section；Described thin grid line is set
For the thin grid line of gradual change type width.
Described positive electrode main gate line（1）The a diameter of 0.1mm-2mm of circular node；Rectangular section in positive electrode main gate line
There are the rectangular section of wider width and the rectangular section of narrower width, the width of the rectangular section of wider width is 0.1mm-2mm；Width compared with
The width of narrow rectangular section is 0.05mm-1.5mm；Described thin grid line（2）Width be gradual change type width, the wide place of width
Width is 0.02mm-0.05mm, and the local width of narrow width is 0.01mm-0.04mm.
Described positive electrode main gate line（1）It is that two ends have band fork structure（3）Solid main grid.
Described positive electrode main gate line（1）Between be parallel to each other, and symmetrical distribution, and adjacent positive electrode main gate line
（1）The distance between D be front electrode frame length of side L/ main gate line radicals N.
Described back electrode main grid is the back electrode main grid of segmented（4）, its back electrode main grid section hop count is 1 ~ 8 section, institute
The back electrode main grid section stated is engraved structure（5）, its pierced pattern can for circular, square, rhombus, ellipse, line strip or
Irregular shape.
Claims (5)
1. a kind of many main grid high efficiency solar cell pieces, including front electrode grid line and back side Al-BSF and back electrode, it is special
Levying is：Described front electrode grid line includes the positive electrode main gate line of 5 or more than 5 and a plurality of thin grid line of longitudinal direction, every
Main gate line is mutually perpendicular to and intersected with described thin grid line；Described back electrode is provided with longitudinal electricity of the back of the body of 5 or more than 5
Pole main grid, back electrode main grid number and position are corresponding with positive electrode main gate line；Described positive electrode main gate line is one continuous
Regular change section formed by the rectangular section of circular circular node connection rectangular cross-section main gate line；Described is thin
Grid line is set to the thin grid line of gradual change type width.
2. a kind of many main grid high efficiency solar cell pieces according to claim 1, it is characterized in that：Described positive electrode master
Grid line（1）The a diameter of 0.1mm-2mm of circular node；Rectangular section in positive electrode main gate line has the rectangular section and width of wider width
The narrower rectangular section of degree, the width of the rectangular section of wider width is 0.1mm-2mm；The width of the rectangular section of narrower width is
0.05mm-1.5mm；Described thin grid line（2）Width be gradual change type width, the wide local width of width be 0.02mm-
0.05mm, the local width of narrow width is 0.01mm-0.04mm.
3. a kind of many main grid high efficiency solar cell pieces according to claim 1 or 2, it is characterized in that：Described positive electricity
Pole main gate line（1）It is that two ends have band fork structure（3）Solid main grid.
4. a kind of many main grid high efficiency solar cell pieces according to claim 1 or 2, it is characterized in that：Described positive electricity
Pole main gate line（1）Between be parallel to each other, and symmetrical distribution, and adjacent positive electrode main gate line（1）The distance between D for front
Electrode border length of side L/ main gate line radicals N.
5. a kind of many main grid high efficiency solar cell pieces according to claim 1 or 2, it is characterized in that：Described back of the body electricity
Pole main grid is the back electrode main grid of segmented（4）, its back electrode main grid section hop count is 1 ~ 8 section, and described back electrode main grid section is
Engraved structure（5）, its pierced pattern can be circular, square, rhombus, ellipse, line strip or irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205510.3U CN206460964U (en) | 2016-11-09 | 2016-11-09 | A kind of many main grid high efficiency solar cell pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205510.3U CN206460964U (en) | 2016-11-09 | 2016-11-09 | A kind of many main grid high efficiency solar cell pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460964U true CN206460964U (en) | 2017-09-01 |
Family
ID=59692047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621205510.3U Active CN206460964U (en) | 2016-11-09 | 2016-11-09 | A kind of many main grid high efficiency solar cell pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460964U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910384A (en) * | 2017-11-29 | 2018-04-13 | 江苏彩虹永能新能源有限公司 | A kind of more main grid solar cells |
| CN108598191A (en) * | 2018-06-11 | 2018-09-28 | 泰州隆基乐叶光伏科技有限公司 | A kind of more main grid high-efficiency battery pieces of compatible half battery |
| CN114784124A (en) * | 2022-03-24 | 2022-07-22 | 环晟光伏(江苏)有限公司 | Solar cell, cell string and solar cell module |
-
2016
- 2016-11-09 CN CN201621205510.3U patent/CN206460964U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910384A (en) * | 2017-11-29 | 2018-04-13 | 江苏彩虹永能新能源有限公司 | A kind of more main grid solar cells |
| CN108598191A (en) * | 2018-06-11 | 2018-09-28 | 泰州隆基乐叶光伏科技有限公司 | A kind of more main grid high-efficiency battery pieces of compatible half battery |
| CN114784124A (en) * | 2022-03-24 | 2022-07-22 | 环晟光伏(江苏)有限公司 | Solar cell, cell string and solar cell module |
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