CN102965549B - Backboard material for photovoltaic cell assembly - Google Patents
Backboard material for photovoltaic cell assembly Download PDFInfo
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- CN102965549B CN102965549B CN201210492474.3A CN201210492474A CN102965549B CN 102965549 B CN102965549 B CN 102965549B CN 201210492474 A CN201210492474 A CN 201210492474A CN 102965549 B CN102965549 B CN 102965549B
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- photovoltaic cell
- aluminium
- cell component
- back veneer
- veneer material
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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 invention relates to a backboard material for a photovoltaic cell assembly. The backboard material comprises the following components in weight percentage: 1.3-1.5% of iron, 0.5-1.0% of nickel, 0.001-0.003% of vanadium, and the balance being aluminium. The technical scheme is capable of improving the ductility of aluminium alloy, meanwhile, reduces appearance of a pinhole, and is capable of reducing the weight and cost.
Description
Technical field
The invention belongs to photovoltaic solar field, particularly relate to a kind of photovoltaic cell component back veneer material.
Background technology
The photovoltaic cell that is electric energy devices by solar energy converting is that one of clean electric power generation device is subject to increasing attention.The problem that photovoltaic cell component now need to solve is also many, not only aspect photoelectric transformation efficiency, need to improve, and other associated component also needs to improve.
The primary structure of photovoltaic cell includes packaged material, shell and other supporting structure of photoelectric conversion unit, holding circuit.In order to guarantee luminous efficiency and the work-ing life of photoelectric conversion unit, prevent that photoelectric conversion unit from occurring that the reasons such as circuit electric leakage, corrosion cause luminous efficiency to decline and the lost of life, require the backboard of photoelectric conversion unit when keeping some strength, also require to have high barrier property, intercept steam and contact with photoelectric conversion unit, prevent from occurring in photoelectric conversion unit inside the generation of electrochemical reaction.
What the backboard in existing photovoltaic cell component was used is pure aluminum metal sheet, and pure aluminum metal sheet during lower than 20 microns, have pin hole problem, and this situation can grievous injury photoelectric conversion unit at thickness.
In order to reduce the performance that occurs affecting photoelectric conversion unit because of backboard pin hole, prior art proposes, a certain proportion of ferro element will be added in fine aluminium, utilize compactness and the high ductibility of ferro element to make up the defect that prints aluminium, even also propose can also contain the elements such as micro-magnesium, manganese, copper, silicon, zinc and titanium in such aluminium alloy.But by reality, use discovery, although ferro element add the ductility that can improve aluminium, its undercapacity.
About containing the problem of other element in aluminium, by practical application, find, although titanium elements can improve the refinement of crystal grain in alloy, and improve the intensity of aluminium alloy, its ductility is not high, when certain thickness, good light alloy element, but while needing thinner alloy, not high to the improvement of compactness, in conjunction with the not high problem of its ductility, titanium elements is to also not obvious as the aluminium alloy improving as photovoltaic cell component again.
For copper, in aluminium alloy, can improve also can keep the compactness of aluminium alloy in ductility but copper add the cost that membership increases the weight of backboard and improves aluminium alloy.
Summary of the invention
The object of the invention is to propose to improve technical scheme by the aluminum alloy materials to for photovoltaic solar assembly backboard, this technical scheme can, when improving aluminium alloy ductility, reduce the appearance of pin hole, and can reduce weight and cost.
The present invention is achieved by the following technical solutions:
Photovoltaic cell component back veneer material, its composition is by weight percentage, the vanadium of the iron of 1.3-1.5%, the nickel of 0.5-1.0%, 0.001-0.003%, surplus is aluminium.
As further improvement, described photovoltaic cell component back veneer material, its composition is by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, surplus is aluminium.
As further improvement, described photovoltaic cell component back veneer material, its composition is by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, surplus is aluminium.
Described photovoltaic cell component is 20-40 micron with the thickness of back veneer material.
The present invention's beneficial effect is compared with the existing technology:
Technical scheme can, when improving aluminium alloy ductility, reduce the appearance of pin hole, and can reduce weight and cost; And in the application's material, can stop the generation of electrochemical reaction.
Embodiment
By specific embodiment, describe technical scheme of the present invention in detail below, should be understood that, following specific embodiment only can be used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
Embodiment 1
Photovoltaic cell component back veneer material, its composition is by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, is not therefore elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element completely.
Embodiment 2
Photovoltaic cell component back veneer material, its composition is by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, is not therefore elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element completely.
Embodiment 3
Photovoltaic cell component back veneer material, its composition is by weight percentage, 1.4% iron, 0.8% nickel, 0.002% vanadium, surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, is not therefore elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element completely.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (4)
1. photovoltaic cell component back veneer material, is characterized in that: its composition is by weight percentage, the vanadium of the iron of 1.3-1.5%, the nickel of 0.5-1.0%, 0.001-0.003%, and surplus is aluminium.
2. photovoltaic cell component back veneer material according to claim 1, is characterized in that: its composition is by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, and surplus is aluminium.
3. photovoltaic cell component back veneer material according to claim 1, is characterized in that: described photovoltaic cell component back veneer material, and its composition is by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, surplus is aluminium.
4. photovoltaic cell component back veneer material according to claim 1, is characterized in that: described photovoltaic cell component is 20-40 micron with the thickness of back veneer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492474.3A CN102965549B (en) | 2012-11-27 | 2012-11-27 | Backboard material for photovoltaic cell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492474.3A CN102965549B (en) | 2012-11-27 | 2012-11-27 | Backboard material for photovoltaic cell assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102965549A CN102965549A (en) | 2013-03-13 |
| CN102965549B true CN102965549B (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210492474.3A Active CN102965549B (en) | 2012-11-27 | 2012-11-27 | Backboard material for photovoltaic cell assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN102965549B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365756A (en) * | 2009-03-30 | 2012-02-29 | 琳得科株式会社 | Protective sheet for the rear surface of a solar cell module, and solar cell module provided therewith |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008081794A (en) * | 2006-09-28 | 2008-04-10 | Showa Denko Kk | Aluminum alloy, and thin film solar cell substrate |
| WO2011097676A1 (en) * | 2010-02-15 | 2011-08-18 | Csg Solar Ag | Contact composition |
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- 2012-11-27 CN CN201210492474.3A patent/CN102965549B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365756A (en) * | 2009-03-30 | 2012-02-29 | 琳得科株式会社 | Protective sheet for the rear surface of a solar cell module, and solar cell module provided therewith |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-81794A 2008.04.10 * |
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| CN102965549A (en) | 2013-03-13 |
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Address after: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee after: Ningbo Bei Da new forms of energy Science and Technology Co., Ltd. Address before: 315131 Zhejiang city of Ningbo Province Wang town Yinzhou District Industrial Park Beida oblique oak Patentee before: Ningbo Beida New Energy Technology Co., Ltd. |
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Address after: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee after: Ningbo Beida New Energy Technology Co., Ltd. Address before: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee before: Ningbo Bei Da new forms of energy Science and Technology Co., Ltd. |