CN102522451A - Low-resistance high-power connection method - Google Patents
Low-resistance high-power connection method Download PDFInfo
- Publication number
- CN102522451A CN102522451A CN2011104053042A CN201110405304A CN102522451A CN 102522451 A CN102522451 A CN 102522451A CN 2011104053042 A CN2011104053042 A CN 2011104053042A CN 201110405304 A CN201110405304 A CN 201110405304A CN 102522451 A CN102522451 A CN 102522451A
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- battery sheet
- back electrode
- cell sheet
- opening
- copper foil
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a low-resistance high-power connection method. A solar battery assembly comprises a cell sheet and a conductive backboard that is connected with a back electrode of the cell sheet; the conductive backboard is formed by superposition of a right side polyvinyl fluoride film, a conductive copper foil, polyethylene terephthalate and a back side polyvinyl fluoride film from top to bottom, wherein the position of the conductive copper foil is identical with a laminated position of the cell sheet. At least one opening that corresponds to the back electrode of the cell sheet is opened on the right side polyvinyl fluoride film corresponding to the upper layer of the conductive copper foil; interconnection strips are connected between the cell sheet and the conductive backboard; one ends of the interconnection strips are connected with the back electrode of the cell sheet; and the other ends of the interconnection strips are connected with the conductive copper foil on the conductive backboard by the at least one opening. According to the low-resistance high-power connection method provided in the invention, the polyvinyl fluoride film is used at the back side of the cell sheet, so that current and voltage losses caused by reflectivity reduction of the copper foil can be avoided; the opening of the copper foil on the backboard is sealed by an adhesive tape so as to prevent oxidation; and the cell sheet is connected with the copper foil by the electrode, so that an occurrence of a short circuit phenomenon can be avoided.
Description
Technical field
The present invention relates to the production method of solar components, the method for attachment of especially a kind of low resistance high power.
Background technology
The conventional crystal silicon solar battery assembly; Constitute and comprise one group of solar battery sheet string; The front of solar battery sheet is connected through interconnector with the back side of the solar battery sheet that is adjacent, usually the mode that all adopts welding that is connected of the front of battery sheet, backplate and interconnector.Present connected mode, the volume resistance of welding accounts for more than 30% of entire cell series resistance, in order to reduce the series resistance of assembly; Assembly end the most directly method is to reduce the welding volume resistance; The conventional method that reduces the welding volume resistance is to increase the thickness that connects welding, and under the certain situation of the width of welding, the thickness of welding is big more; Thereby the corresponding increase of battery bending tablet stress that causes, this has just increased the fragmentation rate of battery sheet.
Summary of the invention
The technical problem that the present invention will solve is: in order to overcome the above-mentioned middle problem that exists; The method of attachment of a kind of low resistance high power is provided; Reduce reflectivity when it reaches the series resistance that reduces assembly, improve the conversion efficiency and the power output of solar module.
The technical solution adopted for the present invention to solve the technical problems is: the method for attachment of a kind of low resistance high power; Comprise battery sheet and the conductive backings that links to each other with the cell back electrode; Described conductive backings is formed by stacking by front pvf film, copper-foil conducting electricity, PET and the back side pvf film identical with battery sheet lamination position from top to bottom successively; Offer on the corresponding front pvf film in described copper-foil conducting electricity upper strata at least one with the corresponding opening of cell back electrode; Be connected with interconnector between described battery sheet and the conductive backings; Described interconnector one end is connected with the cell back electrode, and the other end is connected with copper-foil conducting electricity on the conductive backings through opening.
Further, described copper-foil conducting electricity is shaped as square, and size is more bigger than battery, and its thickness is 20～50 μ m.
Described copper-foil conducting electricity thickness is 35 μ m.
Described opening length is than the long 1～3mm of cell back electrode, and A/F is used rubber belt sealing than the wide 0.1～1mm of cell back electrode before production, anti-oxidation.
Described opening length is than the long 2mm of cell back electrode, and A/F is than the wide 0.5mm of cell back electrode.
The invention has the beneficial effects as follows: low resistance high power of the present invention method of attachment, reduce the component string resistance greatly through the long-pending Copper Foil in the heavy in section at the back side, improve component power; The cell back face uses the pvf film of the coating that is coated with high reflection, has avoided Copper Foil to reduce the current/voltage loss that reflectivity causes, and has guaranteed the raising of power; The Copper Foil aperture position is less in the backboard, can pass through rubber belt sealing, and anti-oxidation has been removed the step of removing oxide layer from the assembly manufacturing, improve production capacity; The battery sheet links to each other through electrode with Copper Foil, the phenomenon of having avoided battery sheet and welding skew cause in the technology battery sheet and other Copper Foils to be short-circuited.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is an end view of the present invention;
Fig. 2 is a front view of the present invention;
Fig. 3 is the syndeton sketch map between battery sheet of the present invention and the conductive backings.
1. battery sheets among the figure, 2. front pvf film, 21. openings, 3. copper-foil conducting electricity, 4. PET; 5. back side pvf film, 6. interconnector.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the sketch map 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.
Low resistance high power method of attachment as shown in figures 1 and 3; Comprise battery sheet 1 and the conductive backings that links to each other with battery sheet 1 back electrode; Conductive backings is formed by stacking by front pvf film 2, copper-foil conducting electricity 3, PET 4 and the back side pvf film 5 identical with battery sheet 1 lamination position from top to bottom successively, and copper-foil conducting electricity 3 is shaped as square, and size is than the big 3mm of battery sheet; Its thickness is 35 μ m; Be connected with interconnector 6 between battery sheet 1 and the conductive backings, interconnector 6 one ends are connected with battery sheet 1 back electrode, and the other end is connected with copper-foil conducting electricity 3 on the conductive backings through opening 21.
Low resistance high power method of attachment as shown in Figure 2; Offer two and the corresponding opening 21 of battery sheet 1 back electrode on the front pvf film 2 of copper-foil conducting electricity 3 upper stratas correspondence; Opening 21 length are than the long 2mm of battery sheet 1 back electrode; Opening 21 width are than the wide 0.5mm of battery sheet 1 back electrode, and opening 21 is used rubber belt sealing before being in and producing, anti-oxidation.
The design procedure of low resistance high power of the present invention method of attachment: at first to the 1 single weldering of battery sheet; Tear conductive backings opening part fluid sealant off; Decontrol the EVA of mouth on the conductive backings upper berth or, utilize conducting resinl to be connected battery sheet 1 back electrode with opening 21 place's copper-foil conducting electricities lay battery sheet 1 positive EVA at non-distribution part lay strip EVA; Lay glass carries out lamination at last.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (5)
1. low resistance high power method of attachment; It is characterized in that: comprise battery sheet (1) and the conductive backings that links to each other with battery sheet (1) back electrode; Described conductive backings is formed by stacking by front pvf film (2), copper-foil conducting electricity (3), PET (4) and the back side pvf film (5) identical with battery sheet (1) lamination position from top to bottom successively; Offer on the corresponding front pvf film (2) in described copper-foil conducting electricity (3) upper strata at least one with the corresponding opening of battery sheet (1) back electrode (21); Be connected with interconnector (6) between described battery sheet (1) and the conductive backings; Interconnector (6) one ends are connected with battery sheet (1) back electrode, and the other end is connected with copper-foil conducting electricity (3) on the conductive backings through opening (21).
2. low resistance high power according to claim 1 method of attachment is characterized in that: described copper-foil conducting electricity (3) is shaped as square, and its thickness is 20～50 μ m.
3. low resistance high power according to claim 2 method of attachment is characterized in that: described copper-foil conducting electricity (3) thickness is 35 μ m.
4. low resistance high power according to claim 1 method of attachment is characterized in that: described opening (21) length is than the long 1～3mm of battery sheet (1) back electrode, and opening (21) width is than the wide 0.1～1mm of battery sheet (1) back electrode.
5. low resistance high power according to claim 4 method of attachment is characterized in that: described opening (21) length is than the long 2mm of battery sheet (1) back electrode, and opening (21) width is than the wide 0.5mm of battery sheet (1) back electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104053042A CN102522451A (en) | 2011-12-08 | 2011-12-08 | Low-resistance high-power connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104053042A CN102522451A (en) | 2011-12-08 | 2011-12-08 | Low-resistance high-power connection method |
Publications (1)
| Publication Number | Publication Date |
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| CN102522451A true CN102522451A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104053042A Pending CN102522451A (en) | 2011-12-08 | 2011-12-08 | Low-resistance high-power connection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346181A (en) * | 2013-05-30 | 2013-10-09 | 南京日托光伏科技有限公司 | Solar cell module without welding strips and preparation method thereof |
| CN109560155A (en) * | 2018-12-29 | 2019-04-02 | 苏州阿特斯阳光电力科技有限公司 | Solar cell module and its manufacturing method |
| CN111106194A (en) * | 2018-10-26 | 2020-05-05 | 比亚迪股份有限公司 | Double-sided solar cell and photovoltaic module |
| CN114530515A (en) * | 2022-01-27 | 2022-05-24 | 江苏日托光伏科技股份有限公司 | Manufacturing and using method of efficient repairable assembly based on back contact battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210493Y (en) * | 2008-04-17 | 2009-03-18 | 中电电气(上海)太阳能科技有限公司 | Encapsulation construction of solar cell component |
| US20090255571A1 (en) * | 2008-04-14 | 2009-10-15 | Bp Corporation North America Inc. | Thermal Conducting Materials for Solar Panel Components |
| CN201812838U (en) * | 2010-10-13 | 2011-04-27 | 嵊州市新化科技有限公司 | Packaging back board for amorphous silicon solar battery component |
| CN202004028U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Solar cell assembly |
| CN202004029U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Fine wire conductor-connected modular cell |
-
2011
- 2011-12-08 CN CN2011104053042A patent/CN102522451A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090255571A1 (en) * | 2008-04-14 | 2009-10-15 | Bp Corporation North America Inc. | Thermal Conducting Materials for Solar Panel Components |
| CN201210493Y (en) * | 2008-04-17 | 2009-03-18 | 中电电气(上海)太阳能科技有限公司 | Encapsulation construction of solar cell component |
| CN201812838U (en) * | 2010-10-13 | 2011-04-27 | 嵊州市新化科技有限公司 | Packaging back board for amorphous silicon solar battery component |
| CN202004028U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Solar cell assembly |
| CN202004029U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Fine wire conductor-connected modular cell |
Non-Patent Citations (1)
| Title |
|---|
| 杨维菊: "《绿色建筑设计与技术》", 30 June 2011, 东南大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346181A (en) * | 2013-05-30 | 2013-10-09 | 南京日托光伏科技有限公司 | Solar cell module without welding strips and preparation method thereof |
| CN111106194A (en) * | 2018-10-26 | 2020-05-05 | 比亚迪股份有限公司 | Double-sided solar cell and photovoltaic module |
| CN109560155A (en) * | 2018-12-29 | 2019-04-02 | 苏州阿特斯阳光电力科技有限公司 | Solar cell module and its manufacturing method |
| CN109560155B (en) * | 2018-12-29 | 2023-09-22 | 苏州阿特斯阳光电力科技有限公司 | Solar cell module and method for manufacturing same |
| CN114530515A (en) * | 2022-01-27 | 2022-05-24 | 江苏日托光伏科技股份有限公司 | Manufacturing and using method of efficient repairable assembly based on back contact battery |
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Application publication date: 20120627 |