CN103489945A - Current-collecting energy-gathering netlike bypass solar cell - Google Patents
Current-collecting energy-gathering netlike bypass solar cell Download PDFInfo
- Publication number
- CN103489945A CN103489945A CN201210194446.3A CN201210194446A CN103489945A CN 103489945 A CN103489945 A CN 103489945A CN 201210194446 A CN201210194446 A CN 201210194446A CN 103489945 A CN103489945 A CN 103489945A
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- CN
- China
- Prior art keywords
- grid lines
- solar cell
- grid line
- adhesive film
- main grid
- 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
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- 239000002313 adhesive film Substances 0.000 claims abstract description 17
- 210000004027 cell Anatomy 0.000 description 13
- 239000002184 metal Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022433—Particular geometry of the grid contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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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
Abstract
The invention relates to a current-collecting energy-gathering netlike bypass solar cell. The current-collecting energy-gathering netlike bypass solar cell comprises a solar cell piece and an EVA adhesive film layer pasted to the solar cell piece. A plurality of mutually intersected auxiliary grid lines are distributed on the surface of the solar cell piece and form a netlike structure. At least two mutual parallel main grid lines are distributed on the EVA adhesive film layer. The main grid lines are connected with the auxiliary grid lines, and the included angles between the main grid lines and the auxiliary grid lines are 40-50 degrees. According to the current-collecting energy-gathering netlike bypass solar cell, the mutually intersected auxiliary grid lines are distributed on the surface of the solar cell piece so that the auxiliary grid lines can have multiple paths to reach the main grid lines; the EVA adhesive film layer is adopted, the multiple parallel main grid lines are packaged in the adhesive film layer, so that the EVA adhesive film layer and the surface of the cell piece are packaged, the main grid lines and the auxiliary grid lines are closely attached, current collection is effectively prevented from being affected by hidden cracks and shading.
Description
Technical field
The present invention relates to the field of photovoltaic cell, the netted by-pass solar cell of especially a kind of energy collecting type that confluxes.
Background technology
A design that importance is upper motor metal grid lines of battery design, when the size of cell increases, it is further important that this respect just becomes, and the power loss mechanism relevant with top electrode is total following several, the caused loss of lateral resistance of battery top diffusion layer; The loss that contact resistance between the series resistance of each metal wire and these metal wires and semiconductor causes; Battery is covered caused loss by these metal grid lines.
Current conventional photovoltaic battery current confluxes and is flowed to the main grid line by thin grid line, then by the welding interconnecting strip, according to certain processing route, welded, encapsulated again, there is the high-temperature soldering current loss, collect the electric current that solar cell produces, metal roof electrode (or claiming the top contact) is necessary, tradition main grid line (on battery front side) directly is connected with outer lead, and secondary grid line is more tiny metallized area, being used for collected current is transferred to the main grid line, the top electrode design object is to reduce because internal resistance and battery cover the loss produced by optimizing electric current collection, at present the such screening rate of conventional batteries is generally in 15% left and right.The electric current produced in battery generally from the internal vertical of battery flow to the surface of battery, then laterally by the top doped layer, the finally contact in topsheet surface is collected; If have hiddenly split, shade or other overcover, etc. quality and applied defect, the hot spot phenomenon may appear for a long time, can cause whole assembly actual effect when serious, all can have adverse effect to safety and the efficiency of whole photovoltaic array.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the problem of above-mentioned middle existence, provide a kind of energy collecting type that confluxes netted by-pass solar cell, its project organization rationally, encapsulation is convenient and the battery utilization rate is high.
The technical solution adopted for the present invention to solve the technical problems is: the netted by-pass solar cell of a kind of energy collecting type that confluxes, comprise solar battery sheet and stick on the EVA adhesive film on solar battery sheet, be distributed with a plurality of cross one another secondary grid lines on described solar battery sheet surface, secondary grid line is network structure, be distributed with at least two main grid lines that are parallel to each other on described EVA adhesive film, the main grid line is connected with secondary grid line, and between described main grid line and secondary grid line, angle is 40～50 °.
In order to make secondary grid line be connected with many main grid lines, can exist in secondary grid line somewhere broken string or printing not full-time, can be completed by the secondary grid line be communicated with the main grid line closed on solar cell surface and be collected and transmission, improve battery efficiency, be distributed with three main grid lines that are parallel to each other on described EVA adhesive film.
Between described main grid line and secondary grid line, angle is 45 °.
The invention has the beneficial effects as follows: the netted by-pass solar cell of the described energy collecting type that confluxes, at the cross one another secondary grid line of solar battery sheet surface distributed, can make it there is mulitpath and arrive the main grid line, adopt the EVA adhesive film, many parallel main grid lines of encapsulation in adhesive film, itself and cell piece surface are encapsulated, main grid line and secondary grid line are combined closely, effectively avoided because of hidden split or shade affect electric current and collect.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the overall structure schematic diagram of the netted by-pass solar cell of energy collecting type of confluxing of the present invention.
Accompanying drawing acceptance of the bid score state as follows: 1, solar battery sheet, 2, the EVA adhesive film, 3, secondary grid line, 4, the main grid line.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
The netted by-pass solar cell of the energy collecting type that confluxes as shown in Figure 1, comprise solar battery sheet 1, paste EVA adhesive film 2 on solar battery sheet 1, be distributed with a plurality of on the surface of solar battery sheet 1 and cross one anotherly be cancellated secondary grid line 3, be distributed with three main grid lines 4 that are parallel to each other on EVA adhesive film 2, main grid line 4 is connected with secondary grid line 3, and between main grid line 4 and secondary grid line 3, angle is 45 °.
The netted by-pass solar cell of the energy collecting type that confluxes of the present invention, the adhesive film 2 that pressure layer process and the material by 140 ° of left and right on solar battery sheet 1 surface is EVA merges, and by the effect of pressure, main grid line 4 and secondary grid line 3 is combined closely.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (3)
1. the netted by-pass solar cell of the energy collecting type that confluxes, it is characterized in that: comprise solar battery sheet (1) and stick on the EVA adhesive film (2) on solar battery sheet (1), be distributed with a plurality of cross one another secondary grid lines (3) on described solar battery sheet (1) surface, secondary grid line (3) is network structure, be distributed with at least two main grid lines (4) that are parallel to each other on described EVA adhesive film (2), main grid line (4) is connected with secondary grid line (3), and between described main grid line (4) and secondary grid line (3), angle is 40～50 °.
2. the netted by-pass solar cell of the energy collecting type that confluxes according to claim 1, is characterized in that: be distributed with three main grid lines (4) that are parallel to each other on described EVA adhesive film (2).
3. the netted by-pass solar cell of the energy collecting type that confluxes according to claim 1, it is characterized in that: between described main grid line (4) and secondary grid line (3), angle is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194446.3A CN103489945A (en) | 2012-06-13 | 2012-06-13 | Current-collecting energy-gathering netlike bypass solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194446.3A CN103489945A (en) | 2012-06-13 | 2012-06-13 | Current-collecting energy-gathering netlike bypass solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103489945A true CN103489945A (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210194446.3A Pending CN103489945A (en) | 2012-06-13 | 2012-06-13 | Current-collecting energy-gathering netlike bypass solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103489945A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065953A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065937A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065934A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065944A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065943A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| CN106992220A (en) * | 2017-05-16 | 2017-07-28 | 北京汉能薄膜发电技术有限公司 | A kind of plain conductor network layer structure with electronic component |
| CN108023537A (en) * | 2017-12-27 | 2018-05-11 | 苏州携创新能源科技有限公司 | A kind of color steel tile roof photovoltaic module structure |
| CN110416326A (en) * | 2018-04-28 | 2019-11-05 | 北京铂阳顶荣光伏科技有限公司 | A kind of production method of copper indium gallium selenium solar cell component |
| CN113097327A (en) * | 2021-03-26 | 2021-07-09 | 福斯特(嘉兴)新材料有限公司 | Grid line glue film and solar cell module |
-
2012
- 2012-06-13 CN CN201210194446.3A patent/CN103489945A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065953A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065937A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065934A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065944A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| WO2016065943A1 (en) * | 2014-10-31 | 2016-05-06 | Byd Company Limited | Solar cell module and manufacturing method thereof |
| CN106992220A (en) * | 2017-05-16 | 2017-07-28 | 北京汉能薄膜发电技术有限公司 | A kind of plain conductor network layer structure with electronic component |
| WO2018210284A1 (en) * | 2017-05-16 | 2018-11-22 | 北京铂阳顶荣光伏科技有限公司 | Photovoltaic device, metal wire network layered structure and manufacturing method therefor |
| CN108023537A (en) * | 2017-12-27 | 2018-05-11 | 苏州携创新能源科技有限公司 | A kind of color steel tile roof photovoltaic module structure |
| CN110416326A (en) * | 2018-04-28 | 2019-11-05 | 北京铂阳顶荣光伏科技有限公司 | A kind of production method of copper indium gallium selenium solar cell component |
| CN113097327A (en) * | 2021-03-26 | 2021-07-09 | 福斯特(嘉兴)新材料有限公司 | Grid line glue film and solar cell module |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |