CN203085566U - Selective emitter solar battery and battery piece - Google Patents
Selective emitter solar battery and battery piece Download PDFInfo
- Publication number
- CN203085566U CN203085566U CN 201320074483 CN201320074483U CN203085566U CN 203085566 U CN203085566 U CN 203085566U CN 201320074483 CN201320074483 CN 201320074483 CN 201320074483 U CN201320074483 U CN 201320074483U CN 203085566 U CN203085566 U CN 203085566U
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- diffusion region
- solar battery
- selective emitter
- emitter solar
- center
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a selective emitter solar battery piece, which comprises a silicon wafer provided with a deep diffusion area and a shallow diffusion area, wherein the deep diffusion area is provided with a positioning icon; and the central position of the positioning icon is consistent with the central position of the shallow diffusion area. Meanwhile, the utility model also provides a selective emitter solar battery, which comprises the above selective emitter solar battery piece. With the adoption of the selective emitter solar battery and the selective emitter solar battery piece, through the condition that the central position of the positioning icon is consistent with the central position of the shallow diffusion area, a central position coordinate of a positive electrode main grid is determined through a central position coordinate of the positioning icon, so that strict coincidence of the positive electrode main grid and the deep diffusion area is guaranteed, and the efficiency of the selective emitter solar battery can be improved.
Description
Technical field
The utility model relates to solar cell and makes the field, particularly relates to a kind of selective emitter solar battery and battery sheet thereof.
Background technology
Along with the scarcity of fossil energy sources, regenerative resources such as solar energy are favored day by day.Solar cell is a kind of device that utilizes solar energy, directly luminous energy is changed into electric energy by photoelectric effect or Photochemical effects.
In order to improve the efficient of solar cell, usually adopt a kind of selective emitter solar battery, this battery is evenly to arrange a kind of by P(phosphorus in the solar cell surface of routine) atom, form deep mixed P-N knot, wherein comparatively dark P-N knot region is dark diffusion region, and comparatively shallow P-N knot region is shallow diffusion region.
But when the battery sheet being carried out the shallow DIFFUSION TREATMENT in dark diffusion in grid line position and non-grid line district, need print, when still republishing, need the positive electrode main grid to coincide with dark diffusion region is strict to positive electrode.If can not coincideing with dark diffusion region, positive electrode will reduce the efficient of battery.
Therefore, in order to guarantee battery efficiency, a kind of selective emitter solar battery and battery sheet thereof need be set.
The utility model content
In order to address the above problem, the utility model provides a kind of selective emitter solar battery and battery sheet thereof, can guarantee that positive electrode coincide with dark diffusion region is strict, improves the efficient of battery.
A kind of selective emitter solar battery sheet provided by the utility model, comprise the silicon chip that is provided with dark diffusion region and shallow diffusion region, described dark diffusion region is provided with the target icon, and the center of described the target icon is consistent with the center of described dark diffusion region.
Preferably, described the target icon is square the target icon, and the width of the width of described square the target icon or described square the target icon identical with the width of described dark diffusion region is less than the width of described dark diffusion region.
Preferably, described silicon chip symmetry be provided with two dark diffusion regions, at least two described the target icons are symmetrical arranged, and the center of at least two described the target icons is consistent with the center of described dark diffusion region.
Preferably, the number of described the target icon is four, and four described the target icons are matrix arrangement.
Preferably, also comprise the positive electrode that is provided with the positive electrode main grid, it is consistent with the center of described dark diffusion region that described positive electrode main grid is arranged at the surface and the center of described positive electrode main grid of described dark diffusion region.
Simultaneously, the utility model also provides a kind of selective emitter solar battery, comprises selective emitter solar battery sheet as indicated above.
A kind of selective emitter solar battery sheet provided by the utility model comprises the silicon chip that is provided with dark diffusion region and shallow diffusion region, and dark diffusion region is provided with the target icon, and the center of the target icon is consistent with the center of dark diffusion region.So be provided with, the target icon is provided with dark diffusion region, the center that guarantees the target icon is consistent with the center of dark diffusion region, when positive electrode is printed, high-precision camera system searches out the position that is provided with of the target icon earlier, determine place, the center coordinate of the target icon then, promptly can determine the center position coordinates of dark diffusion region, because the centre coordinate of positive electrode main grid is identical with the coordinate at dark center, diffusion region, therefore when being printed, can print the positive electrode main grid according to the coordinate of the target icon center, therefore can guarantee that the center of positive electrode main grid and the center of dark diffusion region match, guarantee that the positive electrode main grid coincide with dark diffusion region is strict, and then can guarantee the efficient of battery.
Simultaneously, the utility model also provides a kind of selective emitter solar battery, comprises selective emitter solar battery sheet as indicated above.The derivation of its beneficial effect is consistent with the derivation of the beneficial effect of selective emitter solar battery sheet, so repeat no more at this paper.
Description of drawings
Fig. 1 is the structural representation of selective emitter solar battery sheet in a kind of embodiment provided by the utility model.
Embodiment
Core of the present utility model provides a kind of selective emitter solar battery and battery sheet thereof, can guarantee that positive electrode coincide with dark diffusion region is strict, improves the efficient of battery.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of selective emitter solar battery sheet in a kind of embodiment provided by the utility model.
In this embodiment, the selective emitter solar battery sheet comprises the silicon chip 1 that is provided with dark diffusion region and shallow diffusion region, wherein silicon chip 1 is symmetrical is provided with two dark diffusion regions, dark diffusion region is provided with the target icon 2 of four rectangular array distribution, and the center of these four the target icons 2 is consistent with the center of dark diffusion region, and the coordinate of center of two the target icons 2 that promptly is arranged at same dark diffusion region is identical with the coordinate of the center of this dark diffusion region.Surface printing at silicon chip 1 has positive electrode 3, and the positive electrode main grid 4 of positive electrode 3 is arranged at the surface of dark diffusion region, and the center of positive electrode main grid 4 is consistent with the center of dark diffusion region, and the width of positive electrode main grid 4 is identical with the width of dark diffusion region.
So, the target icon 2 is provided with dark diffusion region, guarantees that the center of the target icon and the center of dark diffusion region are located on the same line, promptly place, the center coordinate of the target icon is identical with dark place, center, diffusion region coordinate.
When printing positive electrode 3, the high-precision camera system of printing machine is sought four the target icons 2.Search out the coordinate position of four the target icons 2 when high-precision camera system after,, will obtain the target icon 2 determined center position coordinates, and the center position coordinates of this center position coordinates and dark diffusion region is consistent by calculating.High-precision camera system will think that the centre coordinate of the target icon 2 is the center position coordinates of positive electrode main grid 4.Then, printing machine will be the printing that positive electrode main grid 4 is carried out at the center with this center position coordinates, and the width of positive electrode main grid 4 is identical with the width of dark diffusion region.In the time of printing, because positive electrode 3 is printed in the surface of silicon chip, then positive electrode main grid 4 can cover the target icon 2, so can not demonstrate the target icon 2 on the surface of finished product battery sheet.
So be provided with, the center position coordinates of the target icon 2 is identical with the center position coordinates of dark diffusion region, when printing, determine the center position coordinates of positive electrode main grid 4 by the center position coordinates of the target icon 2, guarantee that positive electrode main grid 4 coincide with dark diffusion region is strict, and then can improve the efficient of selective emitter solar battery sheet.
Need to prove, in this embodiment, the target icon 2 is that the width of foursquare the target icon and square the target icon is identical with the width of dark diffusion region, or the width of square the target icon is less than the width of dark diffusion region, certainly, also can adopt the target icon of other shapes, as circular the target icon, the centre coordinate of circular the target icon is consistent with the center position coordinates of dark diffusion region, and the diameter of the identical or circular the target icon of the width of the diameter of circular the target icon and diffusion region deeply is less than the width of diffusion region deeply.
Also need to prove, in this embodiment, be provided with 4 and become matrix form Distribution and localization icon 2, the target icon of other numbers can certainly be set according to practical condition, as 6 the target icons are set, wherein 3 the target icons are arranged at a dark diffusion region uniformly, and in addition 3 are arranged at another dark diffusion region uniformly.
In addition, in this embodiment, a kind of selective emitter solar battery also is provided, comprise selective emitter solar battery sheet as described above, the derivation of the beneficial effect of the derivation of its beneficial effect and selective emitter solar battery sheet is consistent, will repeat no more in this article.
More than a kind of selective emitter solar battery provided by the utility model and battery sheet thereof are described in detail.Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (6)
1. selective emitter solar battery sheet, comprise the silicon chip (1) that is provided with dark diffusion region and shallow diffusion region, it is characterized in that described dark diffusion region is provided with the target icon (2), the center of described the target icon (2) is consistent with the center of described dark diffusion region.
2. selective emitter solar battery sheet according to claim 1, it is characterized in that, described the target icon (2) is square the target icon, and the width of the width of described square the target icon or described square the target icon identical with the width of described dark diffusion region is less than the width of described dark diffusion region.
3. selective emitter solar battery sheet according to claim 1, it is characterized in that, described silicon chip (1) symmetry be provided with two dark diffusion regions, at least two described the target icons (2) are symmetrical arranged, and the center of at least two described the target icons (2) is consistent with the center of described dark diffusion region.
4. selective emitter solar battery sheet according to claim 3 is characterized in that, the number of described the target icon (2) is four, and four described the target icons (2) are matrix arrangement.
5. selective emitter solar battery sheet according to claim 1, it is characterized in that, also comprise the positive electrode (3) that is provided with positive electrode main grid (4), it is consistent with the center of described dark diffusion region that described positive electrode main grid (4) is arranged at the surface and the center of described positive electrode main grid (4) of described dark diffusion region.
6. a selective emitter solar battery is characterized in that, comprises as arbitrary described selective emitter solar battery sheet of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074483 CN203085566U (en) | 2013-02-17 | 2013-02-17 | Selective emitter solar battery and battery piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074483 CN203085566U (en) | 2013-02-17 | 2013-02-17 | Selective emitter solar battery and battery piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085566U true CN203085566U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320074483 Expired - Lifetime CN203085566U (en) | 2013-02-17 | 2013-02-17 | Selective emitter solar battery and battery piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN203085566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312862A (en) * | 2020-04-08 | 2020-06-19 | 江苏润阳悦达光伏科技有限公司 | Alignment marking mode of selective emitter battery |
-
2013
- 2013-02-17 CN CN 201320074483 patent/CN203085566U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312862A (en) * | 2020-04-08 | 2020-06-19 | 江苏润阳悦达光伏科技有限公司 | Alignment marking mode of selective emitter battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
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| CX01 | Expiry of patent term |