CN202712201U - Front face main grid line electrode structure - Google Patents
Front face main grid line electrode structure Download PDFInfo
- Publication number
- CN202712201U CN202712201U CN 201220375583 CN201220375583U CN202712201U CN 202712201 U CN202712201 U CN 202712201U CN 201220375583 CN201220375583 CN 201220375583 CN 201220375583 U CN201220375583 U CN 201220375583U CN 202712201 U CN202712201 U CN 202712201U
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- grid line
- main grid
- electrode structure
- line electrode
- rectangular section
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Abstract
The utility model discloses a front face main grid line electrode structure. The front face main grid line electrode structure comprises at least two main grid lines (20). The main grid lines (20) are divided into a plurality of sections, and the sections are connected by connecting lines (22). The battery efficiency of the front face main grid line electrode structure can be effectively improved, and the usage amount of slurry can be greatly reduced.
Description
Technical field
The utility model relates to the crystal silicon solar energy battery technical field, is specifically related to a kind of front main grid line electrode structure that can be used for two-shot chromatography.
Background technology
In the front gate line electrode of solar cell, the effect of secondary grid line is to collect photo-generated carrier, in order to reduce series resistance, its depth-width ratio is the bigger the better, and the effect of main grid line mainly is for components welding, does not bear the function of collected current, need not to pursue depth-width ratio.But main grid line and secondary grid line are commonly used the same screen painting, and when pursuing secondary grid line depth-width ratio, the height of main grid line also can increase accordingly, and the use amount that this has just increased silver-colored slurry has increased production cost.
For reducing silver slurry use amount, Decrease production cost, the State Intellectual Property Office website discloses a kind of patent application document of two-shot chromatography technique, by increasing by one printing process main grid line and the fractionation of secondary grid line of front electrode are printed, but this patent application document has only provided a kind of technique, simply with main grid line and the separately printing of secondary grid line, and not to the front gate line electrode structure, especially front main grid line electrode structure redesigns, so battery efficiency does not further improve, and the use amount of slurry does not obtain the reduction amount of expection.
The utility model content
The technical problems to be solved in the utility model is, provides a kind of battery efficiency to effectively improve, and the front main grid line electrode structure that greatly reduced of the use amount of slurry.
The technical solution of the utility model is, a kind of like this front main grid line electrode structure is provided, and it comprises that quantity is at least two main grid line, described main grid line be divided into multistage and section with section between be connected by connecting line.
Each section on the described main grid line is rectangular section, and described connecting line is positioned at the centre position of rectangular section broad ways.
Described connecting line is wider and narrower than rectangular section than the first secondary grid line of the positive secondary gate line electrode structure of for the first time chromatography.
Distance between the measure-alike and rectangular section of each rectangular section of described main grid line equates.
After adopting said structure, the utility model compared with prior art has the following advantages: compare with common continous way main grid line, the main grid line that the utility model provides is segmentation structure, links to each other with connecting line between section and the section.The benefit of design is like this: on the one hand, the area of main grid line reduces, and means that the slurry of printing reduces, and production cost reduces; On the other hand, increase light-receiving area, the photo-generated carrier of generation is increased, improved the short circuit current of battery, thereby improved the cell photoelectric conversion efficiency.
As improvement, each section on the described main grid line is rectangular section, and described connecting line is positioned at the centre position of rectangular section broad ways, is convenient to the welding of connecting line and assembly in follow-up welding process, avoid the increase of assembly series resistance, cause the loss of power.
As further improvement, described connecting line is wider and narrower than rectangular section than the first secondary grid line of the positive secondary gate line electrode structure of for the first time chromatography, the area of main grid line is reduced, the slurry that means printing is also further reduced, and production cost also further reduces, on the other hand, further increased light-receiving area, the photo-generated carrier of generation is further increased, further improved the short circuit current of battery, thereby further improve the cell photoelectric conversion efficiency.
As further improvement, the distance between the measure-alike and rectangular section of each rectangular section of described main grid line equates, so that main grid line silver slurry Stress Release in sintering process is even.
Description of drawings
Fig. 1 is the schematic diagram of front of the present utility model main grid line electrode structure.
Fig. 2 is the schematic diagram that contains the front gate line electrode structure of front of the present utility model main grid line electrode structure.
Shown in the figure: 11, the first secondary grid line, 20, the main grid line, 21, rectangular section, 22, connecting line.
Embodiment
Below in conjunction with accompanying drawing front of the present utility model main grid line electrode structure is described further.
With reference to figure 1 and Fig. 2, the front main grid line electrode structure of the positive secondary gate line electrode structure of for the first time chromatography and for the second time chromatography has formed the front gate line electrode structure.
Front of the present utility model main grid line electrode structure, it comprises that quantity is at least two main grid line 20.Described main grid line 20 be divided into multistage and the section with section between be connected by connecting line 22.
Improvement project as present embodiment: each section on the described main grid line 20 is rectangular section 21, and described connecting line 22 is positioned at the centre position of rectangular section 21 broad wayss; Described connecting line 22 is wider and narrower than rectangular section than the first secondary grid line 11 of the positive secondary gate line electrode structure of for the first time chromatographys; Distance between the measure-alike and rectangular section 21 of each rectangular section 21 of described main grid line 20 equates.
In the present embodiment, described main grid line 20 is 3, and every main grid line 20 is comprised of 8 sections rectangular section 21 and 7 connecting lines 22, and rectangular section 21 width are 1.6mm, and length is 10.5mm, and connecting line 22 length are 8.5mm, and width is 150 μ m.In the present embodiment, main grid line 20 parts silver slurry saves 42%, has also increased light-receiving area simultaneously.
Claims (4)
1. front main grid line electrode structure, it comprises that quantity is at least two main grid line (20), is characterized in that: described main grid line (20) be divided into multistage and section with section between be connected by connecting line (22).
2. front according to claim 1 main grid line electrode structure, it is characterized in that: each section on the described main grid line (20) is rectangular section (21), and described connecting line (22) is positioned at the centre position of rectangular section (21) broad ways.
3. front according to claim 2 main grid line electrode structure, it is characterized in that: described connecting line (22) is wider and narrower than rectangular section than the first secondary grid line (11) of the positive secondary gate line electrode structure of for the first time chromatography.
4. front according to claim 2 main grid line electrode structure, it is characterized in that: the distance between the measure-alike and rectangular section (21) of each rectangular section (21) of described main grid line (20) equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375583 CN202712201U (en) | 2012-07-31 | 2012-07-31 | Front face main grid line electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375583 CN202712201U (en) | 2012-07-31 | 2012-07-31 | Front face main grid line electrode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712201U true CN202712201U (en) | 2013-01-30 |
Family
ID=47592474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375583 Expired - Lifetime CN202712201U (en) | 2012-07-31 | 2012-07-31 | Front face main grid line electrode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362190A (en) * | 2014-10-13 | 2015-02-18 | 山东力诺太阳能电力股份有限公司 | Interdigital electrode for solar cell |
-
2012
- 2012-07-31 CN CN 201220375583 patent/CN202712201U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362190A (en) * | 2014-10-13 | 2015-02-18 | 山东力诺太阳能电力股份有限公司 | Interdigital electrode for solar cell |
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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 |
Address after: No. 181-197, Shanshan Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province, 315177 Patentee after: Ningbo Eureka solar energy Co.,Ltd. Address before: 315177 Zhejiang city of Ningbo province Yinzhou District Wang Shanshan Lu Chun Industrial Park No. 181 Patentee before: NINGBO ULICA SOLAR TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |