CN107611219A - A kind of preparation method for improveing cadmium telluride solar film battery - Google Patents
A kind of preparation method for improveing cadmium telluride solar film battery Download PDFInfo
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- CN107611219A CN107611219A CN201710774299.XA CN201710774299A CN107611219A CN 107611219 A CN107611219 A CN 107611219A CN 201710774299 A CN201710774299 A CN 201710774299A CN 107611219 A CN107611219 A CN 107611219A
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- cadmium telluride
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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
Abstract
The present invention discloses a kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：1) solar-electricity pole piece is prepared；2) one layer of back contact transition zone will be covered on the solar-electricity pole piece upper surface being prepared in step 1), backboard is bonded on the back contact transition zone, obtains prefabricated component, the backboard is 2.5D safety glass；3) prefabricated component is subjected to high-pressure laminating under vacuum, removes vacuum bag, that is, improve cadmium telluride solar film battery.The present invention provide it is a kind of improve cadmium telluride solar film battery preparation method, the battery cadmium telluride thin-film battery being prepared using this method have from edge sealing effect it is good, corner angle are mellow and full, and overall visual effect is preferable, has a wide range of application, reduce use cost the features such as.
Description
Technical field
The present invention relates to photovoltaic technology application field, and in particular to a kind of preparation for improveing cadmium telluride solar film battery
Method.
Background technology
With the continuous progress of modern science and technology, fossil energy consumption is excessive, and environmental pollution has become increasingly serious, solar energy is because of it
Clean environment firendly, it is renewable the features such as obtain the favor in epoch.Thin-film solar cells is because only several μm of need can be straight by solar energy
Switch through and turn to electric energy and be widely used.Cadmium telluride (CdTe) thin-film solar cells is one kind using CdTe as absorbing material
Compound semiconductor film solar cell, because its energy gap is optimal, dim light effect is good, and absorptivity is big, theoretical conversion efficiency
High, the features such as manufacturing cost is low, is paid close attention to by many scientific research institutions and enterprise.
The preparation method of traditional CdTe thin film solar cell is：One layer is covered successively in the upper surface of soda-lime glass
TCO, CdS, CdTe, the back contact back of the body-electrode layer, encapsulating material and backboard, CdTe thin-film solar cells obtained by it
Concrete structure is as shown in figure 1, its used backboard is soda-lime glass.The thermal conductivity factor of soda-lime glass is smaller, case hardness compared with
Difference, so as to cause its impact resistance poor, component heat transfer is slower, reduces its service life, increases its use cost.Tradition simultaneously
CdTe thin film solar cell in use, need edge sealing, and corner angle are not mellow and full enough, overall viewing angle effect is poor so that one
The input costs such as the house required a bit to load-bearing and aesthetics, greenhouse are higher or can not use at all, and application is narrower.
The content of the invention
In view of this, the application provides a kind of improvement cadmium telluride solar film battery preparation method, using party's legal system
It is good from edge sealing effect that standby obtained cadmium telluride solar film battery has, and corner angle are mellow and full, and overall visual effect is preferable, using model
Enclose wide, the features such as reducing use cost.
To solve above technical problem, technical scheme provided by the invention is a kind of improvement cadmium telluride solar film battery
Preparation method, comprise the following steps：
1) solar-electricity pole piece is prepared；
2) one layer of back contact will be covered on the solar-electricity pole piece upper surface being prepared in step 1), is connect in the back of the body
Backboard is bonded in contact layer, obtains prefabricated component, the backboard is 2.5D safety glass；
3) prefabricated component is subjected to high-pressure laminating under vacuum, removes vacuum bag, that is, improve cadmium telluride solar energy
Hull cell.
Preferably, the preparation process of solar-electricity pole piece described in step 1) includes：On the upper surface of electro-conductive glass according to
One layer of N-type layer of secondary covering and light absorbing layer, that is, obtain solar-electricity pole piece；Wherein, electro-conductive glass is by soda-lime glass
Surface covers what one layer of TCO or FTO film obtained.
Preferably, in step 3) by the prefabricated component under conditions of 100-120 DEG C, 0.3-1.5Mpa, and in autoclave
After being laminated 2-4h in laminating machine, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
Preferably, a kind of improvement cadmium telluride solar film battery, including：Backboard, solar battery sheet and back contact
Transition zone；Wherein, for back contact between dorsum electrode layer and solar battery sheet, backboard is 2.5D safety glass.
Preferably, the solar battery sheet includes light absorbing layer, N-type layer and the electro-conductive glass stacked gradually；Wherein, institute
Absorbed layer is stated to be in contact with the lower surface of back contact.
Preferably, the light absorbing layer is CdTe thin film.
Preferably, the thickness of the CdTe thin film is 2000-3500nm.
Preferably, the N-type layer is CdS film, ZnS films or In2S3One or more in film.
Preferably, the thickness of the N-type layer is 30-60nm.
Preferably, the electro-conductive glass includes TCO the or FTO films and soda-lime glass that stack gradually, wherein, TCO or
FTO films are in contact with the lower surface of N-type layer.
Preferably, the thickness of the TCO or FTO films is 100-300nm.
Preferably, the thickness of the soda-lime glass is 2.5-3.2mm.
Preferably, the back contact includes black lead wash or ZnTe:One kind in Cu.
Preferably, the thickness of the back contact is 300-400nm.
Preferably, the edge of the 2.5D safety glass is handled by radian, and described arc width is 3-5mm.
Preferably, the thickness of the 2.5D safety glass is 3-5mm.
Preferably, 2.5D safety glass is bonded on the back contact transition zone；Wherein, the binding agent is EVA, POE
Or the one or more in PVB.
Preferably, the thickness of the binding agent is 0.3-0.6mm.
The present invention provides a kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：1) prepare
Solar-electricity pole piece；2) one layer of back contact transition will be covered on the solar-electricity pole piece upper surface being prepared in step 1)
Layer, backboard is bonded on the back contact, obtains prefabricated component, the backboard is 2.5D safety glass；3) by the prefabricated component
High-pressure laminating is carried out under vacuum, removes vacuum bag, that is, improves cadmium telluride solar film battery.Used in the application
Backboard of the 2.5D safety glass as cadmium telluride diaphragm solar battery, its reason are：1) 2.5D safety glass can be with battery
The perfect docking of piece, so as to reach the effect from edge sealing, makes cadmium telluride diaphragm solar battery, under conditions of without edge sealing, i.e.,
Component longtime running under hot and humid environment can be ensured；2) edge of safety glass is handled by radian so that among glass
It is planar structure, the downward concave shape camber in marginal portion, corner angle are mellow and full, and overall visual effect is preferable, are suitable for building photovoltaic
Integration, have a wide range of application.Edge cambered design, the adhesive material at edge is saved, be also easy to rain drop erosion and realize automatically cleaning；3)
2.5D safety glass has larger case hardness and thermal conductivity factor, and its case hardness adds 23% compared with soda-lime glass, and it is led
Hot to add 35% compared with soda-lime glass, its larger case hardness and thermal conductivity factor add cadmium telluride diaphragm solar battery
Impact resistance and thermal conductivity, service life is added, so as to reduce use cost.
A kind of preparation method for improveing cadmium telluride solar film battery specifically preferred according to the invention, comprises the following steps：
1) one layer of TCO thin film, CdS film and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
The thickness of electrode slice, wherein TCO thin film, CdS film and CdTe thin film is respectively 150nm, 30nm, 3000nm；
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding POE polymer phases, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 3.0mm, after radian is handled, its arc width is 4mm, ZnTe at edge:Cu thickness is 30nm, polymer P OE's
Thickness 0.4mm；
3) by the prefabricated component obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 10%.
The positive achievement that the present invention obtains is：
1st, 2.5D safety glass docks with cell piece perfection, reaches the effect from edge sealing；
2nd, the edge of safety glass is handled by radian, is on the one hand improved overall visual effect, is on the other hand saved side
The adhesive material of edge, also achieve self-cleaning purpose；
3rd, the larger case hardness of 2.5D safety glass and thermal conductivity factor add making for cadmium telluride diaphragm solar battery
With the life-span, use cost is reduced.
In summary, the present invention provides a kind of preparation method for improveing cadmium telluride solar film battery, using this method
The cadmium telluride solar film battery being prepared, it is good from edge sealing effect to have, and corner angle are mellow and full, and overall visual effect is preferable, should
It is wide with scope, reduce use cost the features such as.
Brief description of the drawings
Fig. 1 is the structure chart using common soda lime glass as cadmium telluride diaphragm solar battery backboard
Fig. 2 is the structural representation of present invention improvement cadmium telluride solar film battery
Fig. 3 is cadmium telluride solar cell basic block diagram
Fig. 4 is cadmium telluride solar cell working schematic diagram
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
With the growth of world today's demographic and economic, the increasingly deficient of energy resources, the worsening of environment and people
It is increasing to the demand of electric energy, the development and utilization of solar energy has started upsurge in the world.This is very
Be advantageous to the sustainable development of ecological environment, benefited future generations offspring, therefore competitively solar-electricity is developed in investment research for countries in the world
Pond.
Solar cell species is various, including monocrystaline silicon solar cell, polysilicon solar cell, non-crystal silicon solar energy
Battery, compound semiconductor cell and lamination solar cell etc., wherein, the application of compound semiconductor cell is relatively broad.
Cadmium telluride is group Ⅱ-Ⅵ compound semiconductor, has 2 kinds of crystal structures of cubic zinc blende and hexagonal wurtzite,
Typically make absorbed layer in solar cell.Because its direct band gap is 1.45eV, light energy conversion is best suited for, hence in so that
Optical absorptivity of the cadmium telluride absorbed layer of about 2 μ m-thicks more than its band gap reaches 90% and is possibly realized, it is allowed to highest it is theoretical
Conversion efficiency is up to 27% under the conditions of air quality AM1.5.Cadmium telluride is easily deposited into the film of large area, sedimentation rate
It is high.Therefore, the manufacturing cost of cadmium telluride diaphragm solar battery is relatively low, is preferably a kind of new type solar energy electricity of application prospect
Pond.
The typical structure and operation principle of cadmium telluride solar cell as shown in Figure 3, Figure 4, plate successively on the glass substrate
Upper transparency electrode TCO, CdS, CdTe and back electrode.TCO is preceding electrode, possesses high transmittance, high conductivity, stable performance
Characteristic.CdS is Window layer, belongs to n-type semiconductor, general thickness 50-100nm, energy gap 2.42eV, it is allowed to exhausted big portion
Light splitting passes through.CdTe is absorbed layer, belongs to p-type semiconductor, and general thickness is 2-5 μm.Its operation principle is：Sunshine passes through
Glass TCO and CdS layer, are absorbed by CdTe layer, make the electrons gain enough energy in valence band, transit to conduction band, while in valence band
Middle generation hole, forms electron-hole pair, they built-in electric field action issue it is estranged from.Electronics reverse excursion, pass through
CdS layer transports electrode before TCO；Hole is transported in CdTe layer to by electrode, forms photogenerated current.
At present, for cadmium telluride solar cell people usually using soda-lime glass as back electrode, but soda-lime glass is deposited
It is relatively low in case hardness and electrical conductivity, during use, edge sealing is needed, overall viewing angle effect is poor, and the higher grade of use cost lacks
Point.Therefore, propose in this application using 2.5D safety glass as back electrode, on the one hand, using its higher case hardness
And the characteristics of electrical conductivity, increase the impact resistance and thermal conductivity of solar cell, increase the service life of solar cell, from
And reduce its use cost；On the other hand, it can be docked with cell piece perfection, reach the effect from edge sealing, while to its edge
Radian processing is carried out, saves the adhesive material at edge, corner angle are more mellow and fuller, and overall viewing angle effect is good, are suitable for building photovoltaic one
Body, increase its application.
Technical scheme provided by the invention is a kind of preparation method for improveing cadmium telluride solar film battery, including following
Step：
1) one layer of N-type layer and light absorbing layer are covered successively on the upper surface of electro-conductive glass, that is, obtains solar-electricity pole piece；
Wherein, electro-conductive glass is obtained by covering one layer of TCO or FTO film in soda-lime glass upper surface；
2) one layer of back contact will be covered on the solar-electricity pole piece upper surface being prepared in step 1), is connect in the back of the body
Backboard is bonded in contact layer, obtains prefabricated component, the backboard is 2.5D safety glass；
3) by the prefabricated component at 100-120 DEG C, under conditions of 0.3-1.5Mpa, and 2- is laminated in autoclave lamination machine
After 4h, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described, it is clear that
Described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the implementation in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of protection of the invention.
Embodiment one：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of TCO thin film, CdS film and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
The thickness of electrode slice, wherein TCO thin film, CdS film and CdTe thin film is respectively 150nm, 45nm, 3000nm
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding POE polymer phases, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 3.2mm, after radian is handled, its arc width is 3mm, ZnTe at edge:Cu thickness is 350nm, polymer P OE's
Thickness is 0.4mm；
3) prefabricated component will be obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 5%.
Embodiment two：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of TCO thin film, CdS film and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
The thickness of electrode slice, wherein TCO thin film, CdS film and CdTe thin film is respectively 150nm, 45nm, 2500nm；
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding POE polymer phases, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 2.0mm, after radian is handled, its arc width is 5mm, ZnTe at edge:Cu thickness is 350nm, polymer P OE's
Thickness is 0.4mm；
3) prefabricated component will be obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 3%.
Embodiment three：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of TCO thin film, CdS film and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
The thickness of electrode slice, wherein TCO thin film, CdS film and CdTe thin film is respectively 150nm, 30nm, 3000nm；
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding POE polymer phases, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 3.0mm, after radian is handled, its arc width is 4mm, ZnTe at edge:Cu thickness is 350nm, polymer P OE's
Thickness is 0.4mm；
3) prefabricated component will be obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 10%.
Example IV：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of FTO film, ZnS films and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
Electrode slice, the thickness of wherein FTO films, ZnS films and CdTe thin film is respectively 150nm, 30nm, 3000nm；
2) one layer of black lead wash will be covered on the solar-electricity pole piece upper surface being prepared in step 1), and by 2.5D steel
Change glass to be combined by adding PVB polymer phases with black lead wash, so far obtain prefabricated component, wherein, the thickness of 2.5D safety glass
For 3.0mm, after radian is handled, its arc width is 4mm at edge, and the thickness of black lead wash is 350nm, polymer P VB thickness
Spend for 0.4mm；
3) prefabricated component will be obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 3%.
Embodiment five：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of TCO thin film, In are covered successively in soda-lime glass upper surface2S3Film and CdTe thin film, that is, obtain solar energy
Electrode slice, wherein TCO thin film, In2S3Film and the thickness of CdTe thin film are respectively 150nm, 30nm, 3000nm；
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding EVA polymer, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 3.0mm, after radian is handled, its arc width is 4mm, ZnTe at edge:Cu thickness is 350nm, polymer EVA
Thickness is 0.4mm；
3) prefabricated component will be obtained in step 2) under conditions of 100 DEG C, 1Mpa, and 2h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 6%.
Embodiment six：
A kind of preparation method for improveing cadmium telluride solar film battery, comprises the following steps：
1) one layer of TCO thin film, CdS film and CdTe thin film are covered successively in soda-lime glass upper surface, that is, obtains solar energy
The thickness of electrode slice, wherein TCO thin film, CdS film and CdTe thin film is respectively 150nm, 30nm, 3000nm；
2) one layer of ZnTe will be covered on the solar-electricity pole piece upper surface being prepared in step 1):Cu, and by 2.5D steel
Change glass and ZnTe:Cu is combined by adding POE polymer phases, so far obtains prefabricated component, wherein, the thickness of 2.5D safety glass
Spend for 3.0mm, after radian is handled, its arc width is 4mm, ZnTe at edge:Cu thickness is 350nm, polymer P OE's
Thickness is 0.4mm.
3) prefabricated component will be obtained in step 2) under conditions of 110 DEG C, 1.5Mpa, and 3h is laminated in autoclave lamination machine
Afterwards, remove vacuum bag, that is, obtain improveing cadmium telluride solar film battery.
The improvement cadmium telluride solar film battery being prepared by above step, use the more traditional typical solar energy of duration
Battery increase by 7%.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of preparation method for improveing cadmium telluride solar film battery, it is characterised in that comprise the following steps：
1) solar-electricity pole piece is prepared；
2) one layer of back contact will be covered on the solar-electricity pole piece upper surface being prepared in step 1), in the back contact
Upper cohesive backboard, obtains prefabricated component, and the backboard is 2.5D safety glass；
3) prefabricated component is subjected to high-pressure laminating under vacuum, removes vacuum bag, that is, improve cadmium telluride solar energy film
Battery.
A kind of 2. preparation method for improveing cadmium telluride solar film battery according to claim 1, it is characterised in that step
It is rapid 1) described in the preparation process of solar-electricity pole piece include：Covered successively on the upper surface of electro-conductive glass one layer of N-type layer and
Light absorbing layer, that is, obtain solar-electricity pole piece；Wherein, electro-conductive glass be by soda-lime glass upper surface cover one layer of TCO or
FTO films obtain.
3. one kind improvement cadmium telluride solar film battery, it is characterised in that including：Backboard, solar battery sheet and back contacts
Layer；Wherein, for back contact between dorsum electrode layer and solar battery sheet, backboard is 2.5D safety glass.
A kind of 4. improvement cadmium telluride solar film battery according to claim 3, it is characterised in that the solar-electricity
Pond piece includes light absorbing layer, N-type layer and the electro-conductive glass stacked gradually；Wherein, the lower surface of the absorbed layer and back contact
It is in contact.
A kind of 5. improvement cadmium telluride solar film battery according to claim 4, it is characterised in that the light absorbing layer
For CdTe thin film.
6. a kind of improvement cadmium telluride solar film battery according to claim 4, it is characterised in that the N-type layer is
CdS film, ZnS films or In2S3One or more in film.
A kind of 7. improvement cadmium telluride solar film battery according to claim 4, it is characterised in that the electro-conductive glass
Including TCO the or FTO films stacked gradually and soda-lime glass, wherein, TCO or FTO films are in contact with the lower surface of N-type layer.
A kind of 8. improvement cadmium telluride solar film battery according to claim 3, it is characterised in that the back contact
Including black lead wash or ZnTe:One kind in Cu.
A kind of 9. improvement cadmium telluride solar film battery according to claim 3, it is characterised in that the 2.5D tempering
The edge of glass is handled by radian, and described arc width is 3-5mm.
A kind of 10. improvement cadmium telluride solar film battery according to claim 3, it is characterised in that the back contacts
2.5D safety glass is bonded on layer transition zone；Wherein, the binding agent is the one or more in EVA, POE or PVB.
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| CN108461562A (en) * | 2018-04-12 | 2018-08-28 | 江苏东鋆光伏科技有限公司 | A kind of cadmium telluride glass and crystal silicon chip photovoltaic cell composite component and preparation method thereof |
| CN108461562B (en) * | 2018-04-12 | 2024-03-29 | 江苏东鋆光伏科技有限公司 | Cadmium telluride glass and crystalline silicon wafer photovoltaic cell composite component and preparation method thereof |
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Application publication date: 20180119 |