CN202957257U - Solar cell and backside electrode structure thereof - Google Patents
Solar cell and backside electrode structure thereof Download PDFInfo
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- CN202957257U CN202957257U CN 201220586104 CN201220586104U CN202957257U CN 202957257 U CN202957257 U CN 202957257U CN 201220586104 CN201220586104 CN 201220586104 CN 201220586104 U CN201220586104 U CN 201220586104U CN 202957257 U CN202957257 U CN 202957257U
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- solar cell
- electrode structure
- back face
- backside
- cell back
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Abstract
The utility model relates to an electrode structure of a solar cell, especially to the solar cell and a backside electrode structure thereof. The solar cell comprises a silicon wafer, wherein the backside of the silicon wafer is equipped with three parallel backside electrodes, the distance d1 between two backside electrodes is 52mm, and each backside electrode is composed of multiple segment electrodes in a same line. According to the utility model, a continuous strip-shaped electrode in the backside of the solar cell is divided into multiple independent segment electrodes, thereby reducing consumption of silver slurry in the production process, saving the cost, improving conversion efficiency of the cell, and satisfying welding requirements of assemblies.
Description
Technical field
The utility model relates to the electrode of solar battery structure, the solar battery sheet that relates in particular to a kind of solar cell back face electrode structure and have this structure.
Background technology
Solar panel is the core in solar power system, is also to be worth the highest part in solar power system.Its effect is to convert solar energy into electrical energy, or is sent in storage battery and stores, or promotes loaded work piece.
Solar panel is generally formed by the solar battery sheet encapsulation, and the electrode of existing solar cell back face mainly is continuous strip, relatively waste is used to form the printing auxiliary material silver slurry of backplate, and the high battery conversion efficiency of cost is low, also is not easy to the location of assembly automatic welding.
The utility model content
The technical problems to be solved in the utility model is: in order to solve, in prior art, the silver slurry consumes greatly, cost is high, battery conversion efficiency is low, the technical problem of inconvenient automatic welding, the solar battery sheet that the utility model provides a kind of solar cell back face electrode structure and has this structure.
The utility model solves the technical scheme that its technical problem adopts: a kind of solar cell back face electrode structure, comprise silicon chip, the back side of described silicon chip is provided with three parallel backplates, spacing d1 between every backplate is 52mm, and by multistage, the segmented electrode on same straight line forms every backplate.
Further, preferred, described every backplate is comprised of 5 sections segmented electrodes on same straight line.
Further, particularly, the entire length of described each segmented electrode is 15.5～20.5mm, and width is 2～4mm.
Further, particularly, the edge of described each segmented electrode is evenly distributed with the feeler of giving birth to extension.
Further, particularly, the length of described feeler is 0.25～0.5mm, and width is 0.25～0.5mm, and the spacing d2 between each feeler is 0.25～0.5mm.
Further, preferred, described silicon chip is monocrystalline silicon piece or the polysilicon chip that length and width are 156mm.
A kind of solar battery sheet, the back side of described solar battery sheet is above-mentioned solar cell back face electrode structure.
The beneficial effects of the utility model are, solar cell back face electrode structure of the present utility model, by existing solar cell back face, the electrode of continuous strip is divided into a plurality of independently segmented electrodes, reduced the consumption of silver slurry in the production process, saved cost, improve battery conversion efficiency low, met the welding requirements of assembly.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of the utility model.
Fig. 2 is the enlarged diagram of segmented electrode in Fig. 1.
In figure 1, silicon chip, 2, backplate, 2-1, segmented electrode, 2-1-1, feeler.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As Fig. 1, shown in Fig. 2, the utility model embodiment 1, take the mm of 156*156(unit) monocrystalline silicon piece 1 be example, the back side of described silicon chip 1 is provided with three parallel backplates 2, spacing d1 between every backplate 2 is 52mm, every backplate 2 by 5 sections independently the segmented electrode 2-1 on same straight line form, the integral body of each segmented electrode 2-1 (comprising antennule) length is 15.5mm, width is 3mm, the edge of each segmented electrode 2-1 is evenly distributed with the feeler 2-1-1 given birth to extension, the length of feeler 2-1-1 is 0.5mm, width is 0.25mm, spacing d2 between each feeler 2-1-1 is 0.5mm.
A kind of solar battery sheet, the back side of described solar battery sheet is provided with the back electrode structure of solar battery sheet in the present embodiment 1.
The utility model embodiment 2, take the mm of 156*156(unit) monocrystalline silicon piece 1 be example, the back side of described silicon chip 1 is provided with three parallel backplates 2, spacing d1 between every backplate 2 is 52mm, every backplate 2 by 5 sections independently the segmented electrode 2-1 on same straight line form, the integral body of each segmented electrode 2-1 (comprising antennule) length is 20mm, width is 4mm, the edge of each segmented electrode 2-1 is evenly distributed with the feeler 2-1-1 given birth to extension, the length of feeler 2-1-1 is 0.25mm, width is 0.5mm, spacing d2 between each feeler 2-1-1 is 0.4mm.
A kind of solar battery sheet, the back side of described solar battery sheet is provided with the back electrode structure of solar battery sheet in the present embodiment 2.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (7)
1. a solar cell back face electrode structure, comprise silicon chip (1), it is characterized in that: the back side of described silicon chip (1) is provided with three parallel backplates (2), spacing d1 between every backplate (2) is 52mm, and by multistage, the segmented electrode on same straight line (2-1) forms every backplate (2).
2. solar cell back face electrode structure as claimed in claim 1, it is characterized in that: by 5 sections, the segmented electrode (2-1) on same straight line forms described every backplate (2).
3. solar cell back face electrode structure as claimed in claim 1 or 2, it is characterized in that: the entire length of described each segmented electrode (2-1) is 15.5～20.5mm, width is 2～4mm.
4. solar cell back face electrode structure as claimed in claim 1 or 2 is characterized in that: the edge of described each segmented electrode (2-1) is evenly distributed with the feeler (2-1-1) of giving birth to extension.
5. solar cell back face electrode structure as claimed in claim 4, it is characterized in that: the length of described feeler (2-1-1) is 0.25～0.5mm, and width is 0.25～0.5mm, and the spacing d2 between each feeler (2-1-1) is 0.25～0.5mm.
6. solar cell back face electrode structure as claimed in claim 1 or 2 is characterized in that: described silicon chip (1) is monocrystalline silicon piece or the polysilicon chip of 156mm for length and width.
7. a solar battery sheet is characterized in that: the back side of described solar battery sheet is for as the described solar cell back face of claim 1-6 any one electrode structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586104 CN202957257U (en) | 2012-11-08 | 2012-11-08 | Solar cell and backside electrode structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586104 CN202957257U (en) | 2012-11-08 | 2012-11-08 | Solar cell and backside electrode structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957257U true CN202957257U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220586104 Expired - Fee Related CN202957257U (en) | 2012-11-08 | 2012-11-08 | Solar cell and backside electrode structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300019A (en) * | 2013-07-15 | 2015-01-21 | 茂迪股份有限公司 | Solar cell, module thereof and manufacturing method thereof |
-
2012
- 2012-11-08 CN CN 201220586104 patent/CN202957257U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300019A (en) * | 2013-07-15 | 2015-01-21 | 茂迪股份有限公司 | Solar cell, module thereof and manufacturing method thereof |
| CN104300019B (en) * | 2013-07-15 | 2016-08-17 | 茂迪股份有限公司 | Solar cell, module thereof and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |