CN102916059A - Crystalline-silicon solar high-efficiency battery piece - Google Patents
Crystalline-silicon solar high-efficiency battery piece Download PDFInfo
- Publication number
- CN102916059A CN102916059A CN2012103733132A CN201210373313A CN102916059A CN 102916059 A CN102916059 A CN 102916059A CN 2012103733132 A CN2012103733132 A CN 2012103733132A CN 201210373313 A CN201210373313 A CN 201210373313A CN 102916059 A CN102916059 A CN 102916059A
- Authority
- CN
- China
- Prior art keywords
- silicon solar
- main grid
- solar high
- efficiency battery
- battery sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a crystalline-silicon solar high-efficiency battery piece, which comprises main grids, wherein hollow holes are arranged on main bodies of the main grids. According to the crystalline-silicon solar high-efficiency battery piece, the hollow holes are designed on the main grids, thereby reducing the consumption of silver paste and improving the battery conversion efficiency; in addition, due to the change of the shape of the two sides of each main grid, a probe can press the silver paste accurately, thereby ensuring the stability of the pressing-down test of the probe.
Description
Technical field
The present invention relates to a kind of solar battery sheet, specifically a kind of crystal silicon solar high-efficiency battery sheet.
Background technology
Deep research and development along with crystal silicon solar high-efficiency battery sheet, the volume production high performance solar batteries has become the target that all solar cell R ﹠ D Enterprises are chased, how to promote volume production efficient, reduce the main improvement project that the volume production cost has become the solar cell R ﹠ D Enterprises.And be the consumption of silver slurry to solar cell cost impact maximum, the general employed mode of industry is to reduce the width of thin grid line, at present the general live width of volume production is dropped to about 70 μ m by 100 μ m in 2010, and the design live width of half tone also has 70 μ m to drop to about 45 μ m, because the characteristic of silver slurry and the impact of traditional printing technique, the width of thin grid line are difficult to continue to descend again.
Summary of the invention
Goal of the invention: be the deficiency that exists for prior art, a kind of crystal silicon solar high-efficiency battery sheet is provided, this cell piece can further reduce the consumption of silver slurry on the basis that does not affect the every electrical property of solar battery sheet and reliability performance.
Technical scheme: for achieving the above object, the invention provides a kind of crystal silicon solar high-efficiency battery sheet, comprise main grid; Described main grid main body is provided with the hole of hollow out.The hole interval of described hollow out is evenly distributed in the axial of main grid.
The conversion efficiency of solar cell formula is among the present invention: η=Pm/Pin;
Pm=Isc×Uoc×FF?；
Pin=S(monolithic area) * 1000(standard testing light intensity)
Wherein: η: conversion efficiency; Pm: maximum power; Pin: sun incident power; Isc: short circuit current; Uoc: open circuit voltage; FF: fill factor, curve factor;
In the situation that other parameter constants, the line of main grid described in the present invention adopts the hole design of hollow out, can reduce the shading-area of silver slurry, thereby improves solar cell to Optical Absorption, increases Isc, and then effectively promotes the conversion efficiency of solar cell; The simultaneously minimizing of silver slurry consumption also greatly reduces production cost.
The two sides of main grid described in the present invention are outwardly arcwall face.Because, the test mode of conversion efficiency of solar cell all is to be depressed into main grid line silver slurry part by probe at present, the Isc that is produced when collecting the cell piece exposure with this, Uoc, and then calculate conversion efficiency, and the spacing between per two groups of probes is about 7mm, conventional main grid line all is rectangle structure (such as Fig. 2) with the slurry partial design at present, when probe occurring and press down, such meeting only is pressed onto silver slurry edge, perhaps in addition the situation less than the silver slurry of pressing occur, caused test result to produce larger fluctuation, just the resistance to overturning impact on solar battery sheet production efficiency is very large for this, and be designed to outwardly arcwall face by main grid of the present invention two sides, be preferably semicircle, so just guaranteed that probe presses down the stability of test.
The width of main grid described in the present invention is 1.5mm, described main grid line be adjusted into 1.5mm by width 1.8mm of the prior art, make the consumption of silver slurry reduce by 15%,
Beneficial effect: crystal silicon solar high-efficiency battery sheet of the present invention is compared with solar cell of the prior art, has the following advantages:
1, of the present invention by the hole in main grid design hollow out, reduced the consumption of silver-colored slurry, can save nearly 22% silver slurry;
2, the present invention makes probe can be pressed onto accurately the silver slurry by changing the shape of main grid both sides, has guaranteed that probe presses down the stability of test;
3, the present invention has further reduced the consumption of silver-colored slurry by being 1.5mm with described main grid width adjustment, can save nearly 15% silver slurry consumption.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cutaway view of main grid in the prior art.
Fig. 3 is the cutaway view of main grid among the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, the present embodiment is implemented under take technical solution of the present invention as prerequisite, should understand these embodiment and only be used for explanation the present invention and be not used in and limit the scope of the invention.
Such as Fig. 1, a kind of crystal silicon solar high-efficiency battery sheet shown in Figure 3, comprising: main grid, the width of described main grid are 1.5mm; Described main grid 1 is provided with the hole 2 of hollow out, and hole 2 intervals of described hollow out are evenly distributed in the axial of main grid 1; Described main grid two sides are outwardly semicircle.The present embodiment is semicircle with the two sides design by main grid, makes probe 3 can be pressed onto smoothly the silver slurry, has guaranteed that probe presses down the stability of test.
Claims (5)
1. a crystal silicon solar high-efficiency battery sheet is characterized in that: comprise main grid (1); Described main grid (1) main body is provided with the hole (2) of hollow out.
2. crystal silicon solar high-efficiency battery sheet according to claim 1 is characterized in that: the hole of described hollow out (2) interval be evenly distributed in main grid (1) axially.
3. crystal silicon solar high-efficiency battery sheet according to claim 1 and 2, it is characterized in that: described main grid (1) two sides are outwardly arcwall face.
4. crystal silicon solar high-efficiency battery sheet according to claim 3, it is characterized in that: described main grid two sides are outwardly semicircle.
5. crystal silicon solar high-efficiency battery sheet according to claim 1, it is characterized in that: described main grid (1) width is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103733132A CN102916059A (en) | 2012-09-27 | 2012-09-27 | Crystalline-silicon solar high-efficiency battery piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103733132A CN102916059A (en) | 2012-09-27 | 2012-09-27 | Crystalline-silicon solar high-efficiency battery piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102916059A true CN102916059A (en) | 2013-02-06 |
Family
ID=47614363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103733132A Pending CN102916059A (en) | 2012-09-27 | 2012-09-27 | Crystalline-silicon solar high-efficiency battery piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102916059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317835A (en) * | 2013-06-19 | 2013-09-25 | 东莞南玻光伏科技有限公司 | Electrode screen on positive side of crystalline silicon cell |
| CN106129136A (en) * | 2016-08-27 | 2016-11-16 | 浙江中晶新能源有限公司 | A kind of efficient solar battery sheet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005268254A (en) * | 2004-03-16 | 2005-09-29 | Sharp Corp | Solar battery and its manufacturing method, and solar battery module |
| CN202076273U (en) * | 2011-04-30 | 2011-12-14 | 常州天合光能有限公司 | Crystalline silicon solar cell main grid structure |
| CN202172072U (en) * | 2011-08-02 | 2012-03-21 | 山东力诺太阳能电力股份有限公司 | Electrode structure at right side of solar cell |
| CN202736935U (en) * | 2012-08-27 | 2013-02-13 | 海南英利新能源有限公司 | Solar cell and main grid line thereof |
-
2012
- 2012-09-27 CN CN2012103733132A patent/CN102916059A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005268254A (en) * | 2004-03-16 | 2005-09-29 | Sharp Corp | Solar battery and its manufacturing method, and solar battery module |
| CN202076273U (en) * | 2011-04-30 | 2011-12-14 | 常州天合光能有限公司 | Crystalline silicon solar cell main grid structure |
| CN202172072U (en) * | 2011-08-02 | 2012-03-21 | 山东力诺太阳能电力股份有限公司 | Electrode structure at right side of solar cell |
| CN202736935U (en) * | 2012-08-27 | 2013-02-13 | 海南英利新能源有限公司 | Solar cell and main grid line thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317835A (en) * | 2013-06-19 | 2013-09-25 | 东莞南玻光伏科技有限公司 | Electrode screen on positive side of crystalline silicon cell |
| CN103317835B (en) * | 2013-06-19 | 2016-03-30 | 东莞南玻光伏科技有限公司 | Electrode screen on positive side of crystalline silicon cell |
| CN106129136A (en) * | 2016-08-27 | 2016-11-16 | 浙江中晶新能源有限公司 | A kind of efficient solar battery sheet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203423193U (en) | MWT solar cell | |
| CN102779861B (en) | Electrode structure with grid lines on front surface | |
| CN207529945U (en) | The electrode structure of solar cell | |
| CN202934909U (en) | Sectional type back-electrode screen printing plate | |
| CN102916059A (en) | Crystalline-silicon solar high-efficiency battery piece | |
| CN202695463U (en) | Electrode structure of crystalline silicon solar battery | |
| CN202651170U (en) | Back-contact solar cell sheet connecting structure | |
| CN102544128B (en) | Solar cell | |
| CN203415587U (en) | Five-main-grid high-efficiency solar cell | |
| CN203085565U (en) | Novel solar battery positive electrode | |
| CN103178130A (en) | Electrode of crystalline silicon solar cell | |
| CN202058761U (en) | Screen printing crystalline silica solar energy cell positive silver screen printing plate | |
| CN204760394U (en) | Solar cell positive electrode and solar cell | |
| CN202183381U (en) | Cell plate for solar cell pack with low shading area and high current collection | |
| CN203288602U (en) | Current collecting device of novel solar cell slice | |
| CN203674221U (en) | MWT cell with novel main gate electrode pattern | |
| CN202957260U (en) | Solar single-crystal cell piece with high light availability | |
| CN204792813U (en) | Brilliant silicon solar cell positive electrode and solar cell | |
| CN206432271U (en) | Solar energy is without main gate line crystal-silicon battery slice | |
| CN203013743U (en) | Crystalline silica solar right side main grid electrode | |
| CN204696130U (en) | Crystal silicon solar energy battery electrode structure at right side | |
| CN103117314B (en) | Solar battery sheet | |
| CN203774345U (en) | Crystalline silicon solar cell hollow main gate electrode | |
| CN202796972U (en) | High-efficiency solar cell | |
| CN203339175U (en) | MWT battery back side structure capable of being welded in linear manner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |