CN103035766A - Acid corrosion resistance thin-film solar battery component - Google Patents
Acid corrosion resistance thin-film solar battery component Download PDFInfo
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- CN103035766A CN103035766A CN2012105343850A CN201210534385A CN103035766A CN 103035766 A CN103035766 A CN 103035766A CN 2012105343850 A CN2012105343850 A CN 2012105343850A CN 201210534385 A CN201210534385 A CN 201210534385A CN 103035766 A CN103035766 A CN 103035766A
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- amorphous silicon
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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 discloses an acid corrosion resistance thin-film solar battery component which comprises a front panel, a battery layer, an encapsulation film and a back panel, wherein the front panel, the battery layer, the encapsulation film and the back panel are arranged in sequence along the incidence direction of sunlight, and at least one acid corrosion resistance layer is arranged between a back side of the battery layer and the encapsulation film. The at least one acid corrosion resistance is made of colorless, white and/or close-to-white acid corrosion resistance materials which are good in acid resistance and insulation. According to the acid corrosion resistance thin-film solar battery component, the acid corrosion resistance layer is manufactured between the back side of the battery layer and the encapsulation film, can prevent acidic material produced by aging of the encapsulation film from being directly contacted with the battery layer, and protects a battery from corrosion. In addition, the acid corrosion resistance layer is a good insulation protective layer and a first protective layer to protect the battery from corrosion of the outer side, the battery is protected by two layers including the acid corrosion resistance layer and the encapsulation film, and safe and reliable performance is high.
Description
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Technical field
The present invention relates to a kind of Thinfilm solar cell assembly encapsulating structure of acid corrosion-resistant, belong to the solar photovoltaic device field.
Background technology
The thin-film solar cells encapsulation is the erosion that intercepts the mal-condition of natural environment, guarantees that battery has the important process procedure in 25 year useful life, and the quality of encapsulation has determined the battery long term reliability.The Thinfilm solar cell assembly encapsulation is by polymeric laminate header board, battery layers and backboard to be bonded together.One lateral electrode of encapsulation rear film battery component and metal busbar and encapsulating film closely bond is in the same place.Polymeric laminate is generally selected EVA(polyethylene-hexenoic acid ethyl ester) or the PVB(polyvinyl butyral resin) etc.In long-term use procedure, this family macromolecule glued membrane of EVA or PVB is subject to the ultraviolet ray irradiation, high temperature, the impact such as moisture and oxygen, progressively occur aging, discharge acetaldehyde, acetic acid, the acidic materials such as carbon dioxide, these acidic materials are the electrode and the metal busbar that contact with it of chemical corrosion not only, simultaneously thin-film solar cells have electric current by the time produce the stronger electrochemical corrosion of corrosiveness, even can cause the thin-film solar cells part to open circuit, directly cause the inefficacy of assembly, when this external system voltage is higher, the phenomenon of " sparking " also can occur in local trip point, frequently " sparking " that the local temperature is risen to is very high, even cause the fragmentation of glass, fusing also might cause fire if be close to combustibles, and consequence is very serious.
In order to address this problem, people have carried out a lot of researchs.Wherein publication number is that the patent of CN 102303437A discloses a kind of solar cell package diaphragm; this packaging protection film is comprised of PVDF layer, pet layer and three layers of composite bed of EVA layer; can prevent that steam, oxygen, corrosivity gas-liquid from corroding Thinfilm solar cell assembly from the back side; but this kind packaging protection film can not solve the problem of thin film solar cell electrode corrosion generally as solar cell backboard.Patent CN 102522443A discloses a kind of for promoting small pieces non-crystal silicon thin-film solar cell component selection and the encapsulating structure thereof in useful life, adopt the encapsulating material of Self-leveling, such as epoxy coating, be applied on the battery, the All Ranges of clad battery that can be complete guarantees that cell package is without the dead band.But this kind method for packing just is used for the packaging protection of small pieces battery, and the anti-ultraviolet aging ability Shortcomings of epoxy resin itself can not satisfy the outdoor long-term requirement of using of large area film solar module simultaneously.
Therefore, at present in Thinfilm solar cell assembly encapsulation technology field, still lack a kind of thin-film solar cells batch production of being applicable to, effectively prevent the encapsulation technology of acid corrosion Thinfilm solar cell assembly.
Summary of the invention
The technical problem to be solved in the present invention provides the Thinfilm solar cell assembly of the high acid corrosion-resistant of a kind of reliability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Thinfilm solar cell assembly of acid corrosion-resistant, it comprises header board, battery layers, encapsulating film and the backboard that sets gradually along the sunlight incident direction, and its key technology is: between the shady face of described battery layers and encapsulating film at least one deck acid corrosion-resistant layer is set.
Above-mentioned acid corrosion-resistant layer is to have the colourless, white of good acid resistance and insulating properties and/or connect subalbous acid corrosion-resistant material.
Above-mentioned acid corrosion-resistant material adopts following material one of them or two or more mixtures: epoxy resin, phenolic resins, vinyl ester resin, polyether resin, silica base polymer, silicon-carbon base polymer.
Perhaps above-mentioned acid corrosion-resistant material is comprised of matrix and filmogen, and following one or more the material of described matrix adopting forms: chamotte, porcelain powder, silica flour, kaolin, its parts by weight are 10-50 part; Described filmogen adopt visible transparent and in the solar spectrum scope transmitance greater than 80% high-molecular organic material, such as vistanex, mylar, epoxy resin and/or silicone resin etc., its parts by weight are 50-90 part.
Above-mentioned acid corrosion-resistant layer can be used as coating and evenly applies and be solidificated on the shady face of battery layers, perhaps is made into thin-film package between the shady face and encapsulating film of battery layers.
Preferably, above-mentioned acid corrosion-resistant layer thickness is in 10 microns-500 micrometer ranges.
The said film solar cell be following any one: amorphous silicon, amorphous silicon/amorphous silicon, amorphous silicon/amorphous silicon germanium, amorphous silicon/amorphous silicon germanium/amorphous silicon germanium, amorphous silicon/microcrystal silicon, amorphous silicon/microcrystal silicon/microcrystal silicon, cadmium telluride, copper indium diselenide, copper indium sulphur, Copper Indium Gallium Selenide, organic polymer thin film battery, dye-sensitized film solar cell perhaps have the laminated construction novel battery of mentioned kind battery.
The beneficial effect that adopts technique scheme to produce is: the present invention can prevent that by make one deck acid corrosion-resistant layer between battery layers shady face and encapsulating film the aging acidic materials that produce of encapsulating film from directly contacting with battery layers, and the protection battery is not corroded; In addition, this acid corrosion-resistant layer is good insulating protective layer, is that the protection battery is avoided the extraneous first overcoat that corrodes, and makes battery be subject to the double shielding of this acid corrosion-resistant layer and encapsulating film, and safety and reliability are higher.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein, 1, header board; 2, battery layers; 3, acid corrosion-resistant layer; 4, encapsulating film; 5, backboard.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to accompanying drawing 1, this thin-film solar cells sets gradually header board 1, battery layers 2, acid corrosion-resistant layer 3, transparent PVB film (being encapsulating film 4) and backboard 5 from the sunlight incident direction.On battery layers 2, evenly print one deck acid corrosion-resistant layer 3 by silk screen print method, thickness after this acid corrosion-resistant layer 3 solidifies is 25 microns, material is phenolic resins, covers encapsulating film 4 and backboard 5 at acid corrosion-resistant layer 3, by laminating technology with cell package together.
After completing, the solar module of this acid corrosion-resistant layer is not used in contrast, find to adopt the solar module of acid corrosion-resistant layer, after the damp and hot accelerated ageing test of 1000h, observe the busbar of battery without any loosening and phenomenon that is corroded, the series resistance of assembly increases by 1.5%, power decline low 2%.
The acid corrosion-resistant material phenolic resins of acid corrosion-resistant layer 3 among the embodiment 1 is replaced with white or subalbous chamotte or porcelain powder, silica flour, kaolin, its parts by weight are in 10-50 part scope, filmogen is selected epoxy resin, parts by weight are 50-90 part, the acid corrosion-resistant layer thickness is in the 10-500 micrometer range, the solar module of making after the same method is through behind 200 thermal cycle burn-in tests, and the power decline hangs down 1.5% than the assembly that does not use this acid corrosion-resistant layer.
Chamotte and filmogen silicone resin are mixed according to parts by weight 25 and 75 the ratio of being respectively, obtaining thickness by filming technology is 200 microns acid corrosion-resistant film, this acid corrosion-resistant film is applied in the encapsulating structure of copper, indium and selenium film solar cell, after the hydrothermal aging test of the solar module that makes through 1000h, the power decline is than the assembly that does not use this acid corrosion-resistant film low 1.5%.
Claims (8)
1. the Thinfilm solar cell assembly of an acid corrosion-resistant, it comprises header board (1), battery layers (2), encapsulating film (4) and the backboard (5) that sets gradually along the sunlight incident direction, it is characterized in that: between the shady face of described battery layers (2) and encapsulating film (4) at least one deck acid corrosion-resistant layer (3) is set.
2. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 1 is characterized in that: described acid corrosion-resistant layer (3) is for colourless, white with good acid resistance and insulating properties and/or connect subalbous acid corrosion-resistant material.
3. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 2 is characterized in that: described acid corrosion-resistant material adopts following material one of them or two or more mixtures: epoxy resin, phenolic resins, vinyl ester resin, polyether resin, silica base polymer, silicon-carbon base polymer.
4. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 2, it is characterized in that: described acid corrosion-resistant material is comprised of base material and filmogen, described base material adopts following one or more material to form: chamotte, porcelain powder, silica flour, kaolin, described parts by weight are 10-50 part; Described filmogen adopt visible transparent and transmitance is greater than 80% high-molecular organic material in the solar spectrum scope, its parts by weight are 50-90 part.
5. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 4, it is characterized in that: described filmogen is vistanex, mylar, epoxy resin and/or silicone resin.
6. the Thinfilm solar cell assembly of each described acid corrosion-resistant according to claim 1-5, it is characterized in that: described acid corrosion-resistant layer (3) can be used as coating and evenly applies and be solidificated on the shady face of battery layers (2), perhaps is made into thin-film package between the shady face and encapsulating film (4) of battery layers (2).
7. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 6, it is characterized in that: described acid corrosion-resistant layer (3) thickness is 10 microns～500 microns.
8. the Thinfilm solar cell assembly of acid corrosion-resistant according to claim 6, it is characterized in that: described thin-film solar cells be following any one: amorphous silicon, amorphous silicon/amorphous silicon, amorphous silicon/amorphous silicon germanium, amorphous silicon/amorphous silicon germanium/amorphous silicon germanium, amorphous silicon/microcrystal silicon, amorphous silicon/microcrystal silicon/microcrystal silicon, cadmium telluride, copper indium diselenide, copper indium sulphur, Copper Indium Gallium Selenide, organic polymer thin film battery, dye-sensitized film solar cell perhaps have the laminated construction novel battery of mentioned kind battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105343850A CN103035766A (en) | 2012-12-12 | 2012-12-12 | Acid corrosion resistance thin-film solar battery component |
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| CN2012105343850A CN103035766A (en) | 2012-12-12 | 2012-12-12 | Acid corrosion resistance thin-film solar battery component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356849A (en) * | 2014-11-14 | 2015-02-18 | 无锡中洁能源技术有限公司 | Solar cell backboard coating and preparation method thereof |
| CN106057944A (en) * | 2016-07-26 | 2016-10-26 | 无锡中洁能源技术有限公司 | Corrosion resisting solar backplane structure |
| CN111509069A (en) * | 2020-04-23 | 2020-08-07 | 苏州太阳井新能源有限公司 | Photovoltaic module |
| CN113948598A (en) * | 2021-10-18 | 2022-01-18 | 北京工业大学 | Flexible thin-film solar cell and preparation method thereof |
-
2012
- 2012-12-12 CN CN2012105343850A patent/CN103035766A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356849A (en) * | 2014-11-14 | 2015-02-18 | 无锡中洁能源技术有限公司 | Solar cell backboard coating and preparation method thereof |
| CN106057944A (en) * | 2016-07-26 | 2016-10-26 | 无锡中洁能源技术有限公司 | Corrosion resisting solar backplane structure |
| CN111509069A (en) * | 2020-04-23 | 2020-08-07 | 苏州太阳井新能源有限公司 | Photovoltaic module |
| CN111509069B (en) * | 2020-04-23 | 2023-10-20 | 苏州太阳井新能源有限公司 | Photovoltaic module |
| CN113948598A (en) * | 2021-10-18 | 2022-01-18 | 北京工业大学 | Flexible thin-film solar cell and preparation method thereof |
| CN113948598B (en) * | 2021-10-18 | 2024-04-02 | 北京工业大学 | Flexible thin film solar cell and preparation method thereof |
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Application publication date: 20130410 |