CN203250753U - Solar battery sheet front-surface positive electrode - Google Patents
Solar battery sheet front-surface positive electrode Download PDFInfo
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- CN203250753U CN203250753U CN 201320199680 CN201320199680U CN203250753U CN 203250753 U CN203250753 U CN 203250753U CN 201320199680 CN201320199680 CN 201320199680 CN 201320199680 U CN201320199680 U CN 201320199680U CN 203250753 U CN203250753 U CN 203250753U
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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 solar battery sheet front-surface positive electrode. The solar battery sheet front-surface positive electrode comprises a plurality of mutually-parallel main grids and a plurality of mutually-parallel auxiliary grids. The main grids are parallel to the auxiliary grids. At least two auxiliary grids are arranged between adjacent main grids. The external sides of main grids which are located at the outermost sides of a battery sheet are provided with at least one auxiliary grid. A plurality of fine grid lines which are equidistantly parallel to each other and are perpendicular to the main grids are arranged between the adjacent main grids and auxiliary grids, and between adjacent auxiliary grids, as well as between the auxiliary grids and edges of the battery sheet. The solar battery sheet front-surface positive electrode is characterized in that a plurality of rectangular bars are connected in series with one another to form each main grid; and the spacing and width of the fine grid lines between the auxiliary grids and the of main grids both are larger than those of the other fine grid lines. According to the solar battery sheet front-surface positive electrode of the utility model, the coverage area of the main grids is decreased, and the amount of used silver paste is decreased, and a light-receiving area of the solar battery sheet is increased; and the number of the auxiliary grids is increased, such that collected current can be increased. A fine grid non-uniform distribution structure is adopted, the light-receiving area of the solar battery sheet can be increased under a premise that current collection will not be affected.
Description
Technical field
The utility model relates to the design of a kind of solar battery sheet front positive electrode figure.
Background technology
The positive electrode grid line layout of present conventional solar battery sheet (take M156 as example) is as shown in Figure 1: generally comprise 3 main grid lines and many thin grid lines, many thin grid line be arranged in parallel, the main grid line designs symmetrically in the inside of whole grid line layout, so that a plurality of main grid line is perpendicular to thin grid line and with thin grid line five equilibrium.The shape of main grid line mostly is a solid line that one fixed width is arranged, electrode be shaped as tack structure or prong structure.And well-known, positive electrode mainly plays the effect of collected current and derived current in cell piece, very large on the impact of cell piece performance.And the factor that affects the front gate line performance mainly contains the volume resistivity of ohmic contact, light-shading effect and metal grid lines.Along with the market requirement more and more higher to battery efficiency, we wish large as far as possible increase light-receiving area, collect more photo-generated carrier, reduce series resistance, improve short circuit current, finally improve battery efficiency.
Summary of the invention
Technical problem to be solved of the present utility model is, overcome the defective of prior art, a kind of solar battery sheet front positive electrode has been proposed, purpose is on the basis that reduces as much as possible shading-area, can collect more photo-generated carrier, improve the short circuit current of solar battery sheet, thereby improve the efficient of cell piece.
In order to solve the problems of the technologies described above, the utility model provides a kind of new positive electrode graphic designs solar battery sheet front, front positive electrode.Comprise many main grids that are parallel to each other (main grid line) and many secondary grid that are parallel to each other (secondary grid line), secondary grid are parallel with main grid, establish at least two secondary grid between the adjacent main grid, are positioned at the outermost main grid of the cell piece outside and establish at least one secondary grid; Be equipped with the some thin grid line of some the mutual equidistant parallels vertical with main grid between between adjacent main grid and secondary grid, between the adjacent secondary grid and secondary grid and the cell piece edge; It is characterized in that: described main grid is made of some rectangular strip series connection; The spacing of the thin grid line between secondary grid and the main grid (thin grid) and live width are all greater than other thin grid lines.
Prioritization scheme is: comprise 3 main grids, 6 secondary grid; Each main grid is positioned at the rectangular strip length at main grid two ends greater than other rectangular strip length.
The utility model main grid line adopts the structure of little rectangular strip and fine rule collocation, has reduced the area coverage of main grid, reduces the consumption of silver slurry, has increased the light-receiving area of solar battery sheet; The present invention has increased the quantity of secondary grid, the electric current of collection is increased, in addition, adopt the structure of thin grid uneven distribution, thin grid are sparse between secondary grid and main grid, and other local thin grid are intensive, and the design of main grid different thicknesses, under the prerequisite that does not affect electric current collection, increased the light-receiving area of solar battery sheet as far as possible.The design of this kind main grid and secondary grid finally can improve the battery efficiency of solar battery sheet.
Description of drawings
Fig. 1 is the structural representation of M156 solar battery sheet front description in the present technology.
Fig. 2 is embodiment of the present invention solar battery sheet Facad structure schematic diagram.
Fig. 3 is the utility model M156 crystal-silicon solar cell Facad structure schematic diagram (3 main grid line, 6 secondary grid lines).
Fig. 4 is the utility model M156 crystal-silicon solar cell Facad structure schematic diagram (3 main grid line, 12 secondary grid lines are the secondary grid structure of two-stage between the main grid).
Fig. 5 is the utility model M156 crystal-silicon solar cell Facad structure schematic diagram (5 the front description design of the secondary grid line of main grid line one-level, that is: 5 main grid lines, 10 secondary grid lines).
Fig. 6 is the utility model M156 crystal-silicon solar cell Facad structure schematic diagram (5 the front description design of the secondary grid line of main grid line secondary, that is: 5 main grid lines, 20 secondary grid lines).
Embodiment
Elaborate to the present invention is novel below in conjunction with drawings and Examples.
The scope of application of the present utility model: be applicable to various crystal silicon cells.The utility model provides a kind of design of new solar battery front side figure, comprises at least three main grids and six secondary grid, and many thin grid lines that are parallel to each other.The structure of little rectangular strip and fine rule collocation is adopted in the main grid design, has reduced the shading-area of main grid, has reduced the consumption of silver-colored slurry, has increased light-receiving area.Main grid is relative sparse with thin grid between the secondary grid, and thin grid line is more roomy, and the thin grid of other positions are relatively intensive, and thin grid line is wide smaller, and this front description is exactly a kind of design that interlocks according to this.Secondary grid are evenly distributed on the main grid both sides, and secondary grid are relative sparse with thin grid between the main grid, and live width is large, and the thin grid in other places are relatively intensive, and live width is little.Increase the collection that secondary grid number is conducive to photo-generated carrier, dense degree is different between the thin grid, increases light-receiving area guaranteeing not affect under the prerequisite of electric current collection and derivation as far as possible, thereby improves the short circuit current of cell piece, finally reaches the purpose that improves battery efficiency.
Embodiment 1: as shown in Figure 3, the utility model is the M156 crystal silicon solar energy battery, article 3, the front description design of main grid, the secondary grid of one-level, comprise 3 main grid lines and 6 secondary grid lines, secondary grid line is evenly distributed on the both sides of main grid, main grid is relative intensive with thin grid between the secondary grid, and the thin grid in other places are relatively sparse.The rectangular strip length at every main grid line two ends is 10.34mm, and other local rectangular strip length are 7mm, and the rectangular strip width all is 1.5mm.Main grid line two ends fine rule width is 0.3mm, and the width of middle fine rule is 0.6mm, and length is 11.8mm.The width of secondary grid line is 0.046mm.Secondary grid are evenly distributed on the both sides of main grid, are 12.98mm apart from the distance of main grid, and secondary grid are relative sparse with thin grid between the main grid, and live width is 0.052mm, and the thin grid in other places are relatively sparse, and live width is 0.041mm.
Embodiment 2: as shown in Figure 4, the utility model be the secondary grid of 3 main grids of M156 crystal silicon solar energy battery, secondary the front description design, comprise 3 main grid lines and 10 secondary grid lines.Secondary grid minute two-stage is distributed in the both sides of main grid, thin grid between the secondary grid (being designated 2) of secondary and the main grid are the most sparse, thin grid between the secondary grid (being designated 1) of one-level and the secondary grid of secondary (being designated 2) are slightly more intensive than the thin grid between the secondary grid of secondary and the main grid, and other local grid lines are the most intensive.
Embodiment 3: as shown in Figure 5, the utility model is the front description design of 5 main grids of M156 crystal silicon solar energy battery, the secondary grid of one-level, comprise 5 main grid lines and 10 secondary grid lines, secondary grid line is evenly distributed on the both sides of main grid, main grid is relative intensive with thin grid between the secondary grid, and the thin grid in other places are relatively sparse.
Embodiment 4: as shown in Figure 6, the utility model is the front description design of 5 main grids of M156 crystal silicon solar energy battery, the secondary grid of secondary, comprises 5 main grid lines and 20 secondary grid lines.Secondary grid minute two-stage is distributed in the both sides of main grid, and the thin grid between the secondary grid of secondary and the main grid are the most sparse, and the thin grid between the secondary grid of one-level and the secondary grid of secondary are slightly more intensive than the thin grid between the secondary grid of secondary and the main grid, and other local grid lines are the most intensive.
The above be the utility model preferred embodiment; direct picture comprises the main grid that (contains 3) more than 3 and (contains 6) more than 6 secondary grid; secondary grid can according to circumstances be designed to multistage, and the improvements and modifications of carrying out on this basis are all in protection scope of the present invention.
Claims (2)
1. a solar battery sheet front positive electrode comprises many main grids that are parallel to each other and many secondary grid that are parallel to each other, and secondary grid are parallel with main grid, establish at least two secondary grid between the adjacent main grid, is positioned at the outermost main grid of the cell piece outside and establishes at least one secondary grid; Be equipped with the some thin grid line of some the mutual equidistant parallels vertical with main grid between between adjacent main grid and secondary grid, between the adjacent secondary grid and secondary grid and the cell piece edge; It is characterized in that: described main grid is made of some rectangular strip series connection; The spacing of the thin grid line between secondary grid and the main grid and live width are all greater than other thin grid lines.
2. described solar battery sheet front positive electrode according to claim 1 is characterized in that: comprise 3 main grids, 6 secondary grid; Be positioned at the rectangular strip length at main grid two ends greater than other rectangular strip length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199680 CN203250753U (en) | 2013-04-19 | 2013-04-19 | Solar battery sheet front-surface positive electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199680 CN203250753U (en) | 2013-04-19 | 2013-04-19 | Solar battery sheet front-surface positive electrode |
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| Publication Number | Publication Date |
|---|---|
| CN203250753U true CN203250753U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320199680 Expired - Fee Related CN203250753U (en) | 2013-04-19 | 2013-04-19 | Solar battery sheet front-surface positive electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626733A (en) * | 2013-11-15 | 2015-05-20 | 江苏天宇光伏科技有限公司 | Positive-electrode halftone for reducing cost and improving conversion efficiency of solar battery |
| CN106784045B (en) * | 2016-12-28 | 2019-05-07 | 中国电子科技集团公司第十八研究所 | A kind of multistage grid line layout structure and method of solar cell |
| CN110379869A (en) * | 2019-07-29 | 2019-10-25 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of more main grid solar batteries and battery front side electrode structure |
-
2013
- 2013-04-19 CN CN 201320199680 patent/CN203250753U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626733A (en) * | 2013-11-15 | 2015-05-20 | 江苏天宇光伏科技有限公司 | Positive-electrode halftone for reducing cost and improving conversion efficiency of solar battery |
| CN106784045B (en) * | 2016-12-28 | 2019-05-07 | 中国电子科技集团公司第十八研究所 | A kind of multistage grid line layout structure and method of solar cell |
| CN110379869A (en) * | 2019-07-29 | 2019-10-25 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of more main grid solar batteries and battery front side electrode structure |
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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: 20131023 Termination date: 20160419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |