CN204991723U - Solar cell electrode - Google Patents
Solar cell electrode Download PDFInfo
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- CN204991723U CN204991723U CN201520622323.4U CN201520622323U CN204991723U CN 204991723 U CN204991723 U CN 204991723U CN 201520622323 U CN201520622323 U CN 201520622323U CN 204991723 U CN204991723 U CN 204991723U
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- main grid
- backplate
- grid
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Abstract
The utility model discloses a solar cell electrode, including front electrode and back electrode, the front electrode comprises main grid and vice bars, and the position of back electrode is corresponding with the position of front electrode main grid, vice bars are widened to form with the vice bars of main grid contact department adds wide section, and the back electrode both sides are equipped with the cirrus. Compared with the prior art, the utility model discloses a vice bars are widened with the vice bars of main grid contact department and are formed with wide section, and the position of back electrode and the position of front electrode main grid are corresponding, and the back electrode both sides are equipped with the cirrus, increase front electrode main grid and carry on the back the area of contact of field with vice bars, back electrode and aluminium, have also strengthened the conducting power of electric current when having the reinforcing contact performance to the advantage that has the photoelectric conversion efficiency of promotion battery.
Description
Technical field
The utility model relates to cell art, relates to a kind of electrode of solar battery more specifically.
Background technology
Solar cell is that one absorbs solar radiant energy effectively, utilize photovoltaic effect that transform light energy is become the device of electric energy, when solar irradiation is in semiconductor P-N junction (P-NJunction), form new hole-electron to (V-Epair), under the effect of P-N junction electric field, hole flows to P district by N district, and electronics flows to N district by P district, just forms electric current after connecting circuit.
The manufacturing process of crystal silicon solar batteries is divided into making herbs into wool, diffusion, etching, front plated film, silk screen printing, the large operation of sintering six.Wherein, silk screen printing is divided into backplate printing, the printing of aluminium back surface field and front electrode printing.
At present, the printed patterns of the front electrode 1 ' that industry adopts is the constitutional diagram of secondary grid 12 ' and main grid 11 ', and secondary grid 12 ' and main grid 11 ' intersect vertically.Secondary grid 12 ' are the very thin straight line of live width, and live width is between 20 microns to 70 microns, and number of lines is between 80 to 150.Main grid 11 ' is the wider straight line of live width, and live width is generally between 0.8mm to 2mm, and number of lines is generally between 2 to 6.In cell operations, the electron stream that secondary grid 12 ' were collected converges to main grid 11 ', more the closer to the electron number on the secondary grid 12 ' of main grid 11 ', the width due to secondary grid 12 ' is all identical, and the flowing of electronics can by obstruction (as shown in Figure 1) to a certain extent.
The backplate 2 ' that industry adopts is continous way or segmented electrodes, corresponding with the position of main grid 11 '.Backplate 2 ' is the electronics convergence center of cell backside, and backplate 2 ' part is in addition aluminium back surface field (as shown in Figure 2).
In cell operations, front electrode main grid and backplate, as the convergence center of electronics, have impact on the conducting power of electric current with the contact performance of adjacent component, thus affect the photoelectric conversion efficiency of battery.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of electrode of solar battery strengthening contact performance.
The technical scheme that the utility model adopts is: a kind of electrode of solar battery strengthening contact performance, comprise front electrode and backplate, front electrode is made up of main grid and secondary grid, the position of backplate is corresponding with the position of front electrode main grid, the secondary grid of described secondary grid and main grid contact position are broadened formation those widened sections, and backplate both sides are provided with antenna.
As the improvement of such scheme, described antenna is evenly distributed.
As the improvement of such scheme, described main grid is M bar, and secondary grid are N bar, wherein: 2≤M≤5, and 80≤N≤150.
As the improvement of such scheme, described main grid is continuous electrode or segmented electrode.
As the improvement of such scheme, the triangular in shape or quadrangle of the those widened sections of described secondary grid or polygon.
As the improvement of such scheme, the maximum length L of described those widened sections along secondary grid bearing and the Breadth Maximum D perpendicular to secondary grid bearing
0meet: 100 μm≤L≤1000 μm, 80 μm≤D
0≤ 200 μm; The width D of secondary grid other parts
1meet: 30 μm≤D
1≤ 70 μm.
As the improvement of such scheme, described backplate is continuous electrode or segmented electrode.
As the improvement of such scheme, the triangular in shape or quadrangle of described antenna or polygon.
As the improvement of such scheme, described antenna is perpendicular to the maximum length L in backplate direction
1with the Breadth Maximum D being parallel to backplate direction
2meet: 100 μm≤L
1≤ 2000 μm, 80 μm≤D
2≤ 200 μm.
Compared with prior art, the utility model is broadened formation those widened sections by the secondary grid of secondary grid and main grid contact position, the position of backplate is corresponding with the position of front electrode main grid, backplate both sides are provided with antenna, increase the contact area of front electrode main grid and secondary grid, backplate and aluminium back surface field, there is the conducting power also enhancing electric current while strengthening contact performance, thus there is the advantage of the photoelectric conversion efficiency promoting battery.
Accompanying drawing explanation
Fig. 1: conventional front electrode of solar battery structural representation;
Fig. 2: conventional rear surface of solar cell electrode structure schematic diagram;
Fig. 3: a kind of front electrode of solar battery structural representation strengthening contact performance of the utility model;
Fig. 4: a kind of rear surface of solar cell electrode structure schematic diagram strengthening contact performance of the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 3, Figure 4, a kind of electrode of solar battery of the present utility model, comprise front electrode 1 and backplate 2, front electrode 1 is made up of main grid 11 and secondary grid 12, the position of backplate 2 is corresponding with the position of the main grid 11 of front electrode 1, secondary grid 12 are broadened with the secondary grid 12 of main grid 11 contact position and form those widened sections 13, and backplate 2 both sides are provided with antenna 21; Compared with prior art, the utility model to be broadened with the secondary grid 12 of main grid 11 contact position by secondary grid 12 and to form those widened sections 13, the position of backplate 2 is corresponding with the position of the main grid 11 of front electrode 1, backplate 2 both sides are provided with antenna 21, increase the main grid 11 of front electrode 1 and the contact area of secondary grid 12, backplate 2 and aluminium back surface field, there is the conducting power also enhancing electric current while strengthening contact performance, thus there is the advantage of the photoelectric conversion efficiency promoting battery.
Main grid 11 is M bar, and secondary grid 12 are N bar, wherein: 2≤M≤5, and 80≤N≤150; Main grid 11 is continuous electrode or segmented electrode.Triangular in shape or the quadrangle of the those widened sections 13 of secondary grid 12 or polygon, described those widened sections 13 is along the maximum length L in secondary grid 12 direction and the Breadth Maximum D perpendicular to secondary grid 12 direction
0meet: 100 μm≤L≤1000 μm, 80 μm≤D
0≤ 200 μm.The width D of secondary grid 12 other parts
1meet: 30 μm≤D
1≤ 70 μm.
Backplate 2 is continuous electrode or segmented electrode.Antenna 21 is evenly distributed, and the triangular in shape or quadrangle of antenna 21 or polygon, described antenna 21 is perpendicular to the maximum length L in backplate 2 direction
1with the Breadth Maximum D being parallel to backplate 2 direction
2meet: 100 μm≤L
1≤ 2000 μm, 80 μm≤D
2≤ 200 μm.
Above disclosedly be only a kind of preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (9)
1. an electrode of solar battery, comprise front electrode and backplate, front electrode is made up of main grid and secondary grid, the position of backplate is corresponding with the position of front electrode main grid, it is characterized in that, the secondary grid of described secondary grid and main grid contact position are broadened formation those widened sections, and backplate both sides are provided with antenna.
2. a kind of electrode of solar battery as claimed in claim 1, it is characterized in that, described antenna is evenly distributed.
3. a kind of electrode of solar battery as claimed in claim 1, it is characterized in that, described main grid is M bar, and secondary grid are N bar, wherein: 2≤M≤5,80≤N≤150.
4. a kind of electrode of solar battery as claimed in claim 1, it is characterized in that, described main grid is continuous electrode or segmented electrode.
5. a kind of electrode of solar battery as claimed in claim 1, is characterized in that, the triangular in shape or quadrangle of the those widened sections of described secondary grid or polygon.
6. a kind of electrode of solar battery as claimed in claim 1, is characterized in that, the maximum length L of described those widened sections along secondary grid bearing and the Breadth Maximum D perpendicular to secondary grid bearing
0meet: 100 μm≤L≤1000 μm, 80 μm≤D
0≤ 200 μm; The width D of secondary grid other parts
1meet: 30 μm≤D
1≤ 70 μm.
7. a kind of electrode of solar battery as claimed in claim 1, it is characterized in that, described backplate is continuous electrode or segmented electrode.
8. a kind of electrode of solar battery as claimed in claim 1, is characterized in that, the triangular in shape or quadrangle of described antenna or polygon.
9. a kind of electrode of solar battery as claimed in claim 1, it is characterized in that, described antenna is perpendicular to the maximum length L in backplate direction
1with the Breadth Maximum D being parallel to backplate direction
2meet: 100 μm≤L
1≤ 2000 μm, 80 μm≤D
2≤ 200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622323.4U CN204991723U (en) | 2015-08-18 | 2015-08-18 | Solar cell electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622323.4U CN204991723U (en) | 2015-08-18 | 2015-08-18 | Solar cell electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991723U true CN204991723U (en) | 2016-01-20 |
Family
ID=55126058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622323.4U Active CN204991723U (en) | 2015-08-18 | 2015-08-18 | Solar cell electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991723U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449834A (en) * | 2016-10-08 | 2017-02-22 | 苏州阿特斯阳光电力科技有限公司 | Back surface gate line structure of double-sided PERC solar cell piece |
| CN106847944A (en) * | 2017-03-03 | 2017-06-13 | 广东爱康太阳能科技有限公司 | The backplate and battery of p-type PERC double-sided solar batteries |
| CN106952977A (en) * | 2017-04-02 | 2017-07-14 | 韩少茹 | A kind of solar cell encapsulation structure |
-
2015
- 2015-08-18 CN CN201520622323.4U patent/CN204991723U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449834A (en) * | 2016-10-08 | 2017-02-22 | 苏州阿特斯阳光电力科技有限公司 | Back surface gate line structure of double-sided PERC solar cell piece |
| CN106449834B (en) * | 2016-10-08 | 2018-01-23 | 苏州阿特斯阳光电力科技有限公司 | A kind of two-sided PERC solar cell backs face grid line structure |
| CN106847944A (en) * | 2017-03-03 | 2017-06-13 | 广东爱康太阳能科技有限公司 | The backplate and battery of p-type PERC double-sided solar batteries |
| CN106952977A (en) * | 2017-04-02 | 2017-07-14 | 韩少茹 | A kind of solar cell encapsulation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528100, Sanshui District, Guangdong City, Foshan Industrial Park, No. C District, No. 69 Patentee after: GUANGDONG AIKO SOLAR ENERGY TECHNOLOGY Co.,Ltd. Address before: 528100, Sanshui District, Guangdong City, Foshan Industrial Park, No. C District, No. 69 Patentee before: GUANGDONG AIKO SOLAR ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171229 Address after: 322009 Zhejiang city in Jinhua Province town of Yiwu City, Su Fuk Road No. 126 Co-patentee after: GUANGDONG AIKO SOLAR ENERGY TECHNOLOGY Co.,Ltd. Patentee after: ZHEJIANG AIKO SOLAR ENERGY TECHNOLOGY Co.,Ltd. Address before: 528100, Sanshui District, Guangdong City, Foshan Industrial Park, No. C District, No. 69 Patentee before: GUANGDONG AIKO SOLAR ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |