CN202601627U - Cirrus-type back electrode solar cell - Google Patents
Cirrus-type back electrode solar cell Download PDFInfo
- Publication number
- CN202601627U CN202601627U CN 201220201542 CN201220201542U CN202601627U CN 202601627 U CN202601627 U CN 202601627U CN 201220201542 CN201220201542 CN 201220201542 CN 201220201542 U CN201220201542 U CN 201220201542U CN 202601627 U CN202601627 U CN 202601627U
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- Prior art keywords
- back electrode
- solar cell
- poles
- dorsal
- electric field
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Abstract
The utility model relates to a cirrus-type back electrode solar cell. As a back electrode and an electric field of a solar cell respectively use two different pastes, a silver paste and an aluminium paste, two printing steps are required to be finished, and with the function of warping and silicon wafer stress caused by the subsequent sintering circuit, the part which is contacted by the back electrode and the electric field is easy to be dropped off, thus reducing the reliability for contacting the back electrode and the electric field. The cirrus-type back electrode solar cell is characterized in that two rows of parallel and segmentedly arrayed rectangular dorsal poles on the back electrode; and a plurality of cirri are densely covered on the whole body of the dorsal poles. The cirrus-type back electrode solar cell modifies the normal rectangular dorsal poles, and sets a plurality of cirrus-shaped structures around the outside of the dorsal poles; and when the printing is in the stage for back field, the aluminium paste covers the silver paste on the cirri parts and is closely integrated with the silver paste, thus being not easy to be dropped off, effectively avoiding the situation that the dorsal poles and the back electric field drop off caused by poor printing or warping due to sintering, and guaranteeing good contact of the back electric field and the dorsal poles.
Description
Technical field
The utility model relates to a kind of whisker type back electrode solar cell.
Background technology
The backplate of solar cell is starched and two kinds of different slurries of aluminium paste owing to use is silver-colored respectively with electric field; Usually need the printing of two steps to accomplish; Add the warpage that follow-up sintering circuit causes and the effect of silicon chip stress; Problems such as the part that very easily contacts at both comes off reduce the reliability that both contact.
The utility model content
The utility model provides a kind of whisker type back electrode solar cell to the defective that prior art exists, and makes silver slurry and aluminium paste combine closely difficult coming off.
For this reason, the utility model is taked following technical scheme: a kind of whisker type back electrode solar cell, its characteristic are provided with two and are listed as rectangle backplane parallel and that segmentation is arranged on the backplate of solar cell, a plurality of antennas gather on the whole body of said rectangle backplane.
The utility model improves conventional rectangle backplane, is provided with many tentaculiform structures in the outer periphery of backplane, and when the printing back of the body, aluminium paste can cover the silver slurry of antenna part, and both combine closely, difficult drop-off.Effectively avoided having guaranteed that because of printing bad or backplane that the sintering warpage causes and the situation that back of the body electric field comes off back of the body electric field well contacts with backplane.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Whisker type back electrode solar cell as shown in Figure 1 is provided with two and is listed as rectangle backplane 2 parallel and that segmentation is arranged on the backplate 1 of solar cell, every row comprise at least 3 rectangle backplanes 2, and a plurality of antennas of evenly arranging 3 gather on the whole body of rectangle backplane 2.
The utility model improves conventional rectangle backplane, is provided with many tentaculiform structures in the outer periphery of backplane, and when the printing back of the body, aluminium paste can cover the silver slurry of antenna part, and both combine closely, difficult drop-off.Effectively avoided having guaranteed that because of printing bad or backplane that the sintering warpage causes and the situation that back of the body electric field comes off back of the body electric field well contacts with backplane.
What need particularly point out is; The mode of the foregoing description only limits to describe embodiment; But the utility model is confined to aforesaid way incessantly; And those skilled in the art can modify in the scope that does not break away from the utility model in view of the above easily, so the scope of the utility model should comprise the principle that the utility model discloses and the maximum magnitude of new feature.
Claims (1)
1. whisker type back electrode solar cell, the rectangle backplane that it is characterized in that being provided with on the backplate of solar cell two row are parallel and segmentation is arranged, a plurality of antennas gather on the whole body of said rectangle backplane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201542 CN202601627U (en) | 2012-05-04 | 2012-05-04 | Cirrus-type back electrode solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201542 CN202601627U (en) | 2012-05-04 | 2012-05-04 | Cirrus-type back electrode solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601627U true CN202601627U (en) | 2012-12-12 |
Family
ID=47319152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220201542 Expired - Fee Related CN202601627U (en) | 2012-05-04 | 2012-05-04 | Cirrus-type back electrode solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425634A (en) * | 2013-09-09 | 2015-03-18 | 友晁能源材料股份有限公司 | Passivated emitter back electrode silicon crystal solar cell and manufacturing method thereof |
-
2012
- 2012-05-04 CN CN 201220201542 patent/CN202601627U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425634A (en) * | 2013-09-09 | 2015-03-18 | 友晁能源材料股份有限公司 | Passivated emitter back electrode silicon crystal solar cell 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: 20121212 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |