CN205723559U - The solar battery sheet of novel electrode structure - Google Patents
The solar battery sheet of novel electrode structure Download PDFInfo
- Publication number
- CN205723559U CN205723559U CN201620246673.XU CN201620246673U CN205723559U CN 205723559 U CN205723559 U CN 205723559U CN 201620246673 U CN201620246673 U CN 201620246673U CN 205723559 U CN205723559 U CN 205723559U
- Authority
- CN
- China
- Prior art keywords
- grid line
- thin grid
- solar battery
- battery sheet
- electrode structure
- 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.)
- Expired - Fee Related
Links
- 238000007639 printing Methods 0.000 claims description 5
- 229910001316 Ag alloy Inorganic materials 0.000 abstract description 4
- 229910000676 Si alloy Inorganic materials 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses the solar battery sheet of a kind of novel electrode structure, including main gate line, the first thin grid line and the second thin grid line, with described main gate line parallel two second thin grid line between described adjacent main grid line, is distributed；First thin grid line square crossing of described main gate line and the second thin grid line and some the dense distribution that are parallel to each other；Wherein, the adjacent second thin grid line is respectively distributed at even intervals and the odd number interval of the first thin grid line；The solar battery sheet of a kind of novel electrode structure that this utility model provides, can form excellent silver-colored silicon alloy by base electrode layer, can form excellent sn-ag alloy by the hollow out electrode that set stamps again, and front electrode pulling force is obviously improved.
Description
Technical field
This utility model relates to photovoltaic solar cell field, particularly to the solar battery sheet of a kind of novel electrode structure.
Background technology
Along with the recovery of World Economics, photovoltaic industry is moving towards the increasingly mature stable stage.The solar battery sheet life-span is more than 25 years, so the reliability of the front electrode of solaode is particularly important.In order to promote the competitiveness of photovoltaic cell end, the pulling force that cell piece front silver electrode is higher is an up the important approach of product reliability.
Electrode of solar battery is completed by silk screen printing, and current front silver electrode is designed as segmentation hollow out front electrode, and hollow out can form preferable sn-ag alloy with welding, but the silver-colored silicon alloy area that electrode and silicon chip are formed reduces, and pulling force reliability weakens.
Utility model content
Utility model purpose: the problem existed for prior art, this utility model provides the solar battery sheet of a kind of novel electrode structure, promotes pulling force, improves front electrode reliability.
Technical scheme: the solar battery sheet of a kind of novel electrode structure, including main gate line, the first thin grid line and the second thin grid line, is distributed the thin grid line of two parallel with described main gate line second between described adjacent main grid line；First thin grid line square crossing of described main gate line and the second thin grid line and some the dense distribution that are parallel to each other；Wherein, the adjacent second thin grid line is respectively distributed at even intervals and the odd number interval of the first thin grid line.
Specifically, the described second thin grid line is distributed at the 1/4 of two main gate line.
Specifically, the height of described main gate line is 5-10 μm.
Specifically, the height of the described first thin grid line is 10-15 μm.
Specifically, the electrode pattern of different height is printed to cell piece front by twice printing by described solar battery sheet.
Specifically, described main gate line has three or four.
Beneficial effect: compared with prior art, the solar battery sheet of a kind of novel electrode structure that this utility model provides, can can form excellent silver-colored silicon alloy by base electrode layer, can form excellent sn-ag alloy by the hollow out electrode that set stamps again, front electrode pulling force is obviously improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of first impression electrode pattern of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model.
As shown in Figure 1, a kind of solar battery sheet of novel electrode structure, including four main gate line 1, the be parallel to each other first thin grid line 2 of some dense distribution and six second thin grid lines 3, main gate line 1 is provided with rectangle hollow out section 4, being distributed two second thin grid lines 3 between adjacent main gate line 1, two second thin grid lines 3 are respectively at the 1/4 of two main gate line 1；Main gate line 1 and the second thin grid line 3 respectively with the first thin grid line 2 square crossing, described second thin grid line 3 vertical distribution is at the interval of some first thin grid lines 2, wherein one second thin grid line 3 vertical distribution is at even intervals, another second thin grid line 3 vertical distribution, at odd number interval, is distributed in the at even intervals second thin grid line 3 and is distributed in the thin grid line 3 of second at odd number interval and is alternately present.
Different electrode patterns is printed to cell piece front by twice printing by described solar battery sheet, use Micro-tec screen process press, by the hollow out electrode single printing of former front is changed over main grid double exposure, first one layer of complete solid basic unit silver electrode the thinnest of printing, the front of chromatography hollow out again silver electrode in basic unit, concretely comprises the following steps:
Step one: print the thinnest solid basic unit silver electrode on No. 3 printer, such as Fig. 2；
Step 2: by baking oven, base electrode layer solidifies；
Step 3: print hollow out silver electrode and secondary grid line on No. 4 printer, such as Fig. 1；
Step 4: enter sintering furnace, after forming alloy, cell piece shapes.
This utility model can form excellent silver-colored silicon alloy by base electrode layer and silicon chip, can form excellent sn-ag alloy by the hollow out electrode that set stamps again, thus promote pulling force, improves front electrode reliability.
Claims (6)
1. the solar battery sheet of a novel electrode structure, it is characterized in that: include main gate line (1), the first thin grid line (2) and the second thin grid line (3), with described main gate line (1) parallel two second thin grid line (3) between described adjacent main grid line (1), is distributed；First thin grid line (2) square crossing of described main gate line (1) and the second thin grid line (3) and some the dense distribution that are parallel to each other；Wherein, the adjacent second thin grid line (3) is respectively distributed at even intervals and the odd number interval of the first thin grid line (2).
The solar battery sheet of a kind of novel electrode structure the most according to claim 1, it is characterised in that: the described second thin grid line (3) is distributed at the 1/4 of two main gate line (1).
The solar battery sheet of a kind of novel electrode structure the most according to claim 1, it is characterised in that: the height of described main gate line (1) is 5-10 μm.
The solar battery sheet of a kind of novel electrode structure the most according to claim 1, it is characterised in that: the height of the described first thin grid line (2) is 10-15 μm.
The solar battery sheet of a kind of novel electrode structure the most according to claim 1, it is characterised in that: the electrode pattern of different height is printed to cell piece front by twice printing by described solar battery sheet.
The solar battery sheet of a kind of novel electrode structure the most according to claim 1, it is characterised in that: described main gate line (1) has three or four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246673.XU CN205723559U (en) | 2016-03-28 | 2016-03-28 | The solar battery sheet of novel electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246673.XU CN205723559U (en) | 2016-03-28 | 2016-03-28 | The solar battery sheet of novel electrode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723559U true CN205723559U (en) | 2016-11-23 |
Family
ID=57311008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620246673.XU Expired - Fee Related CN205723559U (en) | 2016-03-28 | 2016-03-28 | The solar battery sheet of novel electrode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205723559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449804A (en) * | 2016-12-19 | 2017-02-22 | 中利腾晖光伏科技有限公司 | Electrode grid line structure and solar battery piece |
-
2016
- 2016-03-28 CN CN201620246673.XU patent/CN205723559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449804A (en) * | 2016-12-19 | 2017-02-22 | 中利腾晖光伏科技有限公司 | Electrode grid line structure and solar battery piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 12 Xinhua Road, Xinhua District, Wuxi City, Jiangsu Province, 214028 Patentee after: WUXI RITUO PHOTOVOLTAIC TECHNOLOGY Co.,Ltd. Address before: No. 12 Xinhua Road, National High-tech Industrial Development Zone, Wuxi City, Jiangsu Province, 214028 Patentee before: WUXI DEXIN SOLAR POWER Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 |