CN207038536U - A kind of solar cell encapsulation structure - Google Patents
A kind of solar cell encapsulation structure Download PDFInfo
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- CN207038536U CN207038536U CN201720724212.3U CN201720724212U CN207038536U CN 207038536 U CN207038536 U CN 207038536U CN 201720724212 U CN201720724212 U CN 201720724212U CN 207038536 U CN207038536 U CN 207038536U
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- solar cell
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- electrode
- packaging bag
- electrical leads
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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 utility model discloses a kind of solar cell encapsulation structure, solar cell encapsulation structure of the present utility model includes：The solar cell and 2 electrical leads of packaging bag, Vacuum Package inside packaging bag, described respective one end of 2 electrical leads is connected with 2 electrodes of the solar cell inside packaging bag respectively, and the respective not connected end of this 2 electrical leads is drawn out to the outside of packaging bag as lead-out wire is reserved.Solar cell encapsulation structure of the present utility model can intactly seal whole battery, prevent the leakage of device breakage or battery raw material, water oxygen can be completely cut off well, ensure the extinction efficiency of solar cell, can compatible rigidity and flexible solar battery, and energy extraction electrode is easy to connect external circuit, extends solar battery life.
Description
Technical field
The utility model belongs to area of solar cell, especially perovskite area of solar cell, is related to a kind of sun
Energy battery packaging structure, more particularly to a kind of solar cell vacuum encapsulation structure.
Background technology
Due to resource is increasingly short, solar energy as a kind of inexhaustible, nexhaustible new green power,
By the most attention of various circles of society.Solar cell supplies the possibility of one of main source as generation driving force, day
Benefit causes gazing at for people.
Encapsulation technology has a major impact during solar cell use to battery life, existing solar cell master
Glass-encapsulated solar cell is relied on, as CN102222731A discloses a kind of sun for improving conversion efficiency of solar cell
Can battery encapsulation method, its scheme used for：Between the solar panel connected is placed on into two sheet glass, two sheet glass
Plate surrounding is packaged by bonding agent and fluid sealant, and aspirating hole is reserved before encapsulation, after the sealing glue solidifying of glass periphery, is taken out
Vacuum, then seal aspirating hole.The utility model makes the recovery of silicon chip simple and easy, improves the conversion of silica-based solar cell
Efficiency, the conversion efficiency of solar cell is improved 10%~15% on the basis of original, extend making for solar cell
With the life-span and reduce production cost etc.；And for example CN202268366U discloses a kind of glass-encapsulated solar cell module panel,
Including solar cell, it is fixed on the glass top plate of solar cell upper surface, is bonded and fixed to the solar cell following table
The glass film plates in face, and it is arranged at the terminal box of the glass film plates lower surface；The glass-encapsulated solar cell module
The through hole of at least two fixations is provided with plate.The solar cell module panel Stability Analysis of Structures, makes solar cell frame
Package assembling is more durable in use.
But there is following shortcoming in the mode of above-mentioned glass-encapsulated：(1) the solar cell thickness obtained after encapsulating
Increase (2) can not be packaged broken in (3) installation process and damage (4) to the solar cell of flexibility and be not easy discharge encapsulation
Gas between glass and battery.
Utility model content
The defects of existing for prior art, the purpose of this utility model are to provide a kind of solar cell package knot
Structure, solar cell encapsulation structure of the present utility model can intactly seal whole battery, obstruct water oxygen, prevent device breakage
Or the leakage of battery raw material, can compatible rigid solar cell and flexible solar battery, and can extraction electrode be easy to connect
External circuit, so as to extend solar battery life.
For the above-mentioned purpose, the utility model uses following technical scheme：
The utility model provides a kind of solar cell encapsulation structure, and the encapsulating structure includes：Packaging bag, Vacuum Package
Solar cell inside packaging bag, and 2 electrical leads；
Described respective one end of 2 electrical leads is connected with 2 electrodes of the solar cell inside packaging bag respectively, and
The respective not connected end of this 2 electrical leads is drawn out to the outside of packaging bag as lead-out wire is reserved.
Solar cell encapsulation structure of the present utility model is solar cell vacuum encapsulation structure.
The material of the packaging bag include polypropylene, makrolon, polystyrene, polymethyl methacrylate, polyethylene,
In polyvinyl chloride or dimethyl silicone polymer any one or at least two combination, but be not limited to above-mentioned material,
Other meet that the material of following condition can also be used for the utility model：1. light transmittance is high, more than 85%；2. with necessarily strong
Degree, can bear certain negative pressure, about -30Pa；3. chemical property torpescence, does not react with battery material；4. with certain
Ductility, elongation percentage be more than 8%, be easy to encapsulate flexible solar battery；5. compact structure, water oxygen can be obstructed.
The material of packaging bag that the utility model is selected has good translucency, so as to ensure that after the completion of encapsulation to too
Intensity of illumination when positive energy battery uses.
In the utility model, the pliability of the substrate of the solar cell is not construed as limiting, and can is flexible substrates, also may be used
To be rigid basement, those skilled in the art can be selected as needed.
Preferably, the contact conductor is any one in wire or clad metal wire or at least two combination.
Preferably, the wire includes any one in spun gold or copper wire, and the electric conductivity of above-mentioned wire is excellent,
, can extraction electrode well as contact conductor.
Preferably, the clad metal wire includes any one in gold-tin alloy silk, signal bronze silk or AI alloy silk
Kind, the electric conductivity of above-mentioned clad metal wire is excellent, can extraction electrode well as contact conductor.
Preferably, a diameter of 0.2mm~10mm of the contact conductor, for example, 0.2mm, 0.5mm, 1mm, 1.2mm,
1.5mm、2mm、2.5mm、3mm、3.5mm、4mm、4.5mm、5mm、5.5mm、6mm、6.5mm、7mm、7.5mm、8mm、8.5mm、
9mm, 9.5mm or 10mm etc..If the diameter of contact conductor is less than 0.2mm, the extraction effect of electrode can be caused to be deteriorated；If electrode draws
The diameter of line is more than 10mm, packaging bag gas leakage when can cause Vacuum Package.Therefore, the diameter of the utility model preferred electrode lead
For 0.2mm~10mm, so that while ensureing that good electrode draws effect, packaging bag gas leakage when preventing Vacuum Package.
Preferably, 2 electrodes are the positive pole and negative pole of solar cell.
In the utility model, electrode can be metal electrode or conductive substrates.
Preferably, the conductive substrates include tin oxide (Fluorinated Tin Oxide, the FTO) conduction of doping fluorine
Glass, indium tin oxide semiconductor (Indium Tin Oxide, ITO) electro-conductive glass, FTO conduction PENs
(Polyethylene Naphthalate, PEN) film, FTO conduction polyethylene terephthalates (Polyethylene
Terephthalate, PET) in film, ITO conduction PEN films or ITO conducting PET films any one or at least two
Combination.
The mode of the connection is any one in mode one or mode two, and mode one is：2 electrical leads point respectively
It is welded on 2 electrodes of solar cell.
Mode two is：2 electrical leads are respectively wound around on 2 electrodes of solar cell.This method easily due to
Loose contact and cause conductance bad.The use of silver paste or soldering is to utilize their viscosity, wire is carried out with electrode it is be bonded,
So as to improve electrical efficiency.
In the utility model, when the electrode is metal electrode (for example being commonly used for the silver electrode of negative pole), it can use
The mode (for example contact conductor point is welded on electrode) of direct lead wire, it can also use and contact conductor is wrapped on electrode
Mode, that is to say, that both can with employing mode one, can also employing mode two be attached.
It is highly preferred that when the electrode is metal electrode, the mode of the connection used is the mode one.
Preferably, when the electrode is conductive substrates (such as coated in the FTO or ITO electrode on glass, referred to as
FTO conductive glass electrodes or ITO conductive glass electrodes), because the conductive substrates such as FTO electro-conductive glass and ITO electro-conductive glass are uncomfortable
Close as metal electrode using direct lead wire by the way of, thus, for the preferential employing mode two of conductive substrates realize described in
Connection.
As the optimal technical scheme of solar cell encapsulation structure described in the utility model, the contact conductor and electrode
Junction also coat silver paste or point scolding tin, the use of silver paste or soldering is to utilize their viscosity, contact conductor and electrode is entered
Row bonding, to improve the contact of contact conductor and electrode.
In the utility model, the silver paste used is preferably low temperature silver paste, and the low temperature silver paste product for choosing main flow on the market is
Can.In general, can rapid curing at 50 DEG C.
In the utility model, the used in amounts of silver paste only need to be bonding to contact conductor and electrode depending on electrode size.
Preferably, when employing mode one realizes the connection, in the junction of the contact conductor and electrode point scolding tin.
Preferably, when employing mode two realizes the connection, silver is coated in the junction of the contact conductor and electrode
Slurry.
Solar cell encapsulation structure of the present utility model can be prepared via a method which to obtain：
(1) it is connected with 2 electrodes of solar cell with 2 electrical leads, is not connected 2 electrical leads are respective respectively
End is connect as reserved lead-out wire；
(2) solar cell is enclosed on the inside of packaging bag, reserved lead-out wire is drawn out to the outside of packaging bag, uses vacuum
Sealing machine seals packaging bag, and takes out the gas in packaging bag and realize vacuum seal；
(3) epoxide-resin glue is coated on the contact surface of reserved lead-out wire and packaging bag, solidifies, complete solar cell
Encapsulation, obtains solar cell encapsulation structure.
As the optimal technical scheme of the above method, methods described be additionally included in step (1) with 2 electrical leads respectively with
After 2 electrodes connection of solar cell, following steps are carried out：Contact circle in the contact conductor and the junction of electrode
Scolding tin is put on face；Or be coated in silver paste on the contact interface of junction of the contact conductor and electrode, to improve electrode
The contact of lead and electrode.
Compared with the prior art, the beneficial effects of the utility model are：
The utility model provides a kind of solar cell encapsulation structure, and the solar cell encapsulation structure can be intactly
Whole battery is sealed, solar cell device rupture or the leakage of battery raw material is prevented, water oxygen, Er Qietou can be obstructed well
The encapsulation of the good packaging bag of photosensitiveness does not influence the effective use of solar cell, ensure that the extinction efficiency of solar cell,
And energy extraction electrode is easy to connect external circuit, has very long lifetime.
Brief description of the drawings
Fig. 1 is the schematic top plan view of the solar cell encapsulation structure of embodiment 1, wherein, 1 is the envelope for encapsulating used in battery
Pack, 2 be contact conductor；
Fig. 2 is solar cell encapsulation structure AA ' along Fig. 1 of embodiment 1 cross-sectional view, wherein, 1 is encapsulation
Bag, 2 be contact conductor, and 3 be the electrode of solar cell；4 be solar cell；
Fig. 3 is the electricity conversion versus time curve figure of the solar cell encapsulation structure of embodiment 1.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Embodiment 1
The present embodiment provides a kind of solar cell encapsulation structure, and the encapsulating structure includes：Packaging bag, Vacuum Package exist
Solar cell inside packaging bag, and 2 electrical leads；
Described respective one end of 2 electrical leads (i.e. one, 2 electrodes with the solar cell inside packaging bag respectively
It is positive pole, another is negative pole) connection, connected mode is is respectively wound around on 2 electrodes, and this 2 electrical leads is respective
Not connected end is drawn out to the outside of packaging bag as lead-out wire is reserved.
Wherein, the perovskite solar cell device that it is 10cm × 10cm to area that solar cell, which is,；Packaging bag is poly-
Styrene vacuum seal packs；2 electrical leads are diameter 3mm conductive gold-tin alloy silk.
Test：
In AM 1.5G, 100mW cm-2Simulated solar irradiation under, test it is encapsulated after perovskite solar cell photoelectric
Transformation efficiency changes with time, and test result is as shown in figure 3, test data is post-processed into relative to initial value through normalization
Efficiency change, as can be seen from the figure the efficiency of 40 days solar cells is basically unchanged after encapsulation, and packaging effect is preferable.
Embodiment 2
In addition to the pack of polystyrene vacuum seal is replaced with into polypropylene vacuum packaging bag, other guide is same as Example 1.
Embodiment 3
In addition to the pack of polystyrene vacuum seal is replaced with into the pack of polyvinyl chloride vacuum seal, other guide and the phase of embodiment 1
Together.
Embodiment 4
In addition to 2 electrical leads are replaced with into a diameter of 5mm copper wire, other guide is same as Example 1.
Embodiment 5
In addition to 2 electrical leads are replaced with into a diameter of 0.5mm spun gold, other guide is same as Example 1.
Embodiment 6
In addition to silver paste is coated in the junction of contact conductor and electrode, other guide is same as Example 1.
Embodiment 7
In addition to the connected mode of contact conductor and positive pole is spot welding, other guide is same as Example 1.
Embodiment 8
The present embodiment provides a kind of solar cell encapsulation structure, and the encapsulating structure includes：Packaging bag, Vacuum Package exist
Solar cell inside packaging bag, and 2 electrical leads；
Described respective one end of 2 electrical leads (i.e. one, 2 electrodes with the solar cell inside packaging bag respectively
It is positive pole, another is negative pole) connection, connected mode is is respectively wound around on 2 electrodes, and this 2 electrical leads is respective
Not connected end is drawn out to the outside of packaging bag as lead-out wire is reserved.
Wherein, solar cell is flexible solar battery；Packaging bag is polyvinyl chloride；2 electrical leads are diameter
3mm conductive gold-tin alloy silk.
Applicant states that the utility model illustrates method detailed of the present utility model, but this reality by above-described embodiment
Above-mentioned method detailed is not limited to new, that is, it is real not mean that the utility model has to rely on above-mentioned method detailed ability
Apply.Person of ordinary skill in the field is it will be clearly understood that to any improvement of the present utility model, to each original of the utility model product
The equivalence replacement of material and the addition of auxiliary element, the selection of concrete mode etc., all fall within the scope of protection of the utility model and public affairs
Within the scope of opening.
Claims (9)
1. a kind of solar cell encapsulation structure, it is characterised in that the encapsulating structure includes：Packaging bag, Vacuum Package are being sealed
Solar cell inside pack, and 2 electrical leads；
Described respective one end of 2 electrical leads is connected with 2 electrodes of the solar cell inside packaging bag respectively, and this 2
The respective not connected end of electrical leads is drawn out to the outside of packaging bag as lead-out wire is reserved.
2. encapsulating structure according to claim 1, it is characterised in that the substrate of the solar cell be flexible substrates or
Any one in rigid basement.
3. encapsulating structure according to claim 1, it is characterised in that the contact conductor is wire or clad metal wire
In any one or at least two combination.
4. encapsulating structure according to claim 3, it is characterised in that the wire is including any in spun gold or copper wire
One kind, the clad metal wire include any one in gold-tin alloy, signal bronze or AI alloy.
5. encapsulating structure according to claim 1, it is characterised in that a diameter of 0.2mm~10mm of the contact conductor.
6. encapsulating structure according to claim 1, it is characterised in that 2 electrodes are respectively the positive pole of solar cell
And negative pole；
The electrode is any one in metal electrode or conductive substrates, and the conductive substrates include the tin oxide of doping fluorine
FTO electro-conductive glass, indium tin oxide semiconductor ITO electro-conductive glass, FTO conduction PEN PEN films, FTO
In conductive polyethylene terephtalate film, ITO conduction PEN films or ITO conducting PET films any one or
At least two combination.
7. encapsulating structure according to claim 1, it is characterised in that the mode of the connection is in mode one or mode two
Any one, mode one is：2 electrical leads are put on 2 electrodes for being welded in solar cell respectively；
Mode two is：2 electrical leads are respectively wound around on 2 electrodes of solar cell；
When the electrode is metal electrode, the mode used is connected as the mode one；
When the electrode is conductive substrates, the mode used is connected as the mode two.
8. encapsulating structure according to claim 1, it is characterised in that the junction of the contact conductor and electrode also coats
Silver paste or point scolding tin, to improve the contact of contact conductor and electrode.
9. encapsulating structure according to claim 7, it is characterised in that when employing mode one realizes the connection, in institute
State the junction point scolding tin of contact conductor and electrode；When employing mode two realizes the connection, in the contact conductor and electricity
The junction coating silver paste of pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724212.3U CN207038536U (en) | 2017-06-21 | 2017-06-21 | A kind of solar cell encapsulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724212.3U CN207038536U (en) | 2017-06-21 | 2017-06-21 | A kind of solar cell encapsulation structure |
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| Publication Number | Publication Date |
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| CN207038536U true CN207038536U (en) | 2018-02-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146823A (en) * | 2017-06-21 | 2017-09-08 | 南方科技大学 | A kind of method for packing of solar cell encapsulation structure and solar cell |
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- 2017-06-21 CN CN201720724212.3U patent/CN207038536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146823A (en) * | 2017-06-21 | 2017-09-08 | 南方科技大学 | A kind of method for packing of solar cell encapsulation structure and solar cell |
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