CN106098809A - A kind of preparation method of series-parallel film battery assembly - Google Patents
A kind of preparation method of series-parallel film battery assembly Download PDFInfo
- Publication number
- CN106098809A CN106098809A CN201610693657.XA CN201610693657A CN106098809A CN 106098809 A CN106098809 A CN 106098809A CN 201610693657 A CN201610693657 A CN 201610693657A CN 106098809 A CN106098809 A CN 106098809A
- Authority
- CN
- China
- Prior art keywords
- laser
- battery
- series
- sub
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 52
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 239000010408 film Substances 0.000 claims description 50
- 238000003466 welding Methods 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 8
- 229920005549 butyl rubber Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007688 edging Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910004613 CdTe Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
- H01L31/0463—PV modules composed of a plurality of thin film solar cells deposited on the same substrate characterised by special patterning methods to connect the PV cells in a module, e.g. laser cutting of the conductive or active layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0516—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module specially adapted for interconnection of back-contact solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1884—Manufacture of transparent electrodes, e.g. TCO, ITO
- H01L31/1888—Manufacture of transparent electrodes, e.g. TCO, ITO methods for etching transparent electrodes
-
- 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
-
- 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 invention discloses the preparation method of a kind of series-parallel film battery assembly, the method is mainly divided into, by laser scoring, two parts that area is identical on one piece of TCO electro-conductive glass, it is respectively series conductor part and parallel conductance part, series conductor part is used for laser grooving and scribing sub-series battery, parallel conductance part is for laser grooving and scribing sub-battery in parallel, respectively sub-to sub-series battery and parallel connection battery is coupled together with drainage strip and busbar, again series conductor part and parallel conductance part are coupled together, the series-parallel film battery assembly needed for making.The present invention is in view of the poor shortcoming of membrane uniformity after large-area coating film, in conjunction with series circuit and the feature of parallel circuit, dissolve film layer difference and be connected in series the problem that sub-battery brings, it is additionally contemplates that the optimization carrying out electrical parameter for the feature that in hull cell electrical parameter, voltage is higher or electric current is higher, it is simple to the later stage is building in power station the impact on factors such as inverter type selecting and Power Plant Design.
Description
Technical field
The present invention relates to the technical field of thin-film solar cells, refer in particular to a kind of series-parallel film battery assembly
Preparation method.
Background technology
Thin-film solar cells mainly has non-silicon-based hull cell, CIGS thin film solar energy, CdTe film battery etc. now,
The material system of hull cell is each variant, but its manufacturing process is essentially identical, and basic employing three road laser incisings are divided into area
Identical sub-battery, then forms series circuit by plated film, finally completes the making of cell panel by dress rosette.It is specially the
One laser grooving and scribing TCO conducting film, is divided into the identical n of area (n is positive integer) individual sub-battery, then uses PECVD's or PVD
Process plated film, forms PN junction；After second laser grooving and scribing, (second laser is skew first laser grooving and scribing, tool
Solid offsetting amount, according to technological requirement, is usually no more than 100 μm, it is ensured that series circuit turns on, such as accompanying drawing 1)；Plated film makes the most again
Through the 3rd road laser grooving and scribing after back electrode film, (the 3rd road laser is skew second laser incising to the sub-battery of formation series connection
Drawing, concrete side-play amount, according to technological requirement, is usually no more than 100 μm, it is ensured that series circuit turns on, such as accompanying drawing 1)；Then use
Drainage strip and busbar, by battery lead, form the both positive and negative polarity of battery, ready for installing rosette below；Through last part technology
(last part technology includes: coating butyl rubber, covering EVA film, laminating machine laminating battery sheet packaging, installation rosette, testing package)
I.e. complete technique and make the film battery assembly (the sub-battery connected mode such as accompanying drawing 2 of hull cell) obtaining being connected in series.
So making laser scoring and drainage strip, the welding production of busbar of battery component, technique is relatively easy, technology
Comparative maturity.But for hull cell, plated film film aspect is long-pending relatively big, and film layer ratio own is relatively thin, and the improved-type film layer having is only
Having 3～5nm, if equipment performance is bad, membrane uniformity is the most poor, and technique forms sub-series battery in making, and finally gives
The film assembly being connected in series.It is understood that the feature of series circuit: (1) circuit connects feature: the whole circuit of series connection is one
Loop, each electrical appliance is sequentially connected, and does not has " branch point "；(2) electrical appliance work characteristics: each electrical appliance influences each other, in circuit one
Individual electrical appliance does not works, and remaining electrical appliance just cannot work.(3) the current work feature of circuit: electric current has significantly " bucket
Effect ", series circuit current is the most equal: IAlways=I1=I2=I3=...=InIf, i.e. in circuit certain sub-battery due to
Membrane uniformity is poor or laser scoring is bad, causes open circuit, then its resistance is bigger than normal causes electric current to be decreased obviously, and draws
Playing a series of problem, as product yield declines, company cost increases；For large-area hull cell, some battery components
Voltage is higher, and electric current is on the low side, has plenty of low-voltage, high electric current, thus causes the bad coupling inversion when building photovoltaic plant
Device, increases the technical matters such as the difficulty of design of photovoltaic power station and construction cost.(4) series circuit total voltage is equal to voltage everywhere
Sum: UAlways=U1+U2+U3+……+Un；(5) the equivalent resistance of series resistance is equal to each resistance sum: RAlways=R1+R2+R3+……+
Rn。
Summary of the invention
It is an object of the invention to the shortcoming overcoming prior art with not enough, it is provided that a kind of series-parallel film battery assembly
Preparation method, can be effectively improved battery component unit for electrical property parameters, particularly occur or voltage is higher, or electric current is higher
Hull cell electrical parameter；Secondly can effectively solve this type of membrane uniformity poor or certain sub-battery laser groove is bad causes
The problem that generated output declines, the particularly film battery assembly of large-area coating film.
For achieving the above object, technical scheme provided by the present invention is: the system of a kind of series-parallel film battery assembly
Preparation Method, comprises the following steps:
1), after rectangular TCO electro-conductive glass edging being cleaned up, deliver to first laser equipment and carry out groove, first
Conducting film on TCO electro-conductive glass is divided into two parts that area is identical by road laser scoring parallel short sides delineation, is respectively
Series conductor part and parallel conductance part, this series conductor part is for the sub-battery of ensuing laser delineation series connection, this parallel connection
Current-carrying part is for the sub-battery of ensuing laser delineation parallel connection, and divides the laser rays definition of the conducting film on TCO electro-conductive glass equally
For middle bisector；Then, further according to demand, series conductor part and parallel conductance part are respectively depicted N number of area equation
Conductive module, N is positive integer, finally, more each conductive module is carried out laser grooving and scribing so that each conductive module is all scored with
The sub-battery block of n+1 area equation, n is positive integer；
2), after delineation first laser technology, TCO electro-conductive glass is after relevant coating process, and film layer forms thin-film electro
The PN junction in pond, is then delivered to second laser equipment, the middle bisector of second laser first coincidence first laser grooving and scribing
Series conductor part and parallel conductance part are separated；If series conductor part and parallel conductance part are at first laser
Respectively it is separated out N number of conductive module, then also need second laser coincidence first laser grooving and scribing, form N number of module separated；
Then, then second laser grooving and scribing series conductor part and the sub-battery block of parallel conductance part are carried out, wherein, in delineation series connection
During the sub-battery block of current-carrying part, second laser is skew first laser grooving and scribing, and concrete side-play amount is according to technological requirement, no
More than 100 μm, to ensure that series circuit turns on, and when delineating the sub-battery block of parallel conductance part, it is desirable to second laser
Line must overlap with the first laser rays of sub-battery block, to ensure to separate between sub-battery block；
3) after having delineated second laser technology, hull cell plating back electrode film is after completing back electrode film making, thin
Film battery technique is come the 3rd road laser equipment and is started to delineate the 3rd road laser, the same with second laser grooving and scribing, and the 3rd road swashs
Series conductor part and parallel conductance part are separated by the middle bisector of light first coincidence second laser grooving and scribing；Equally, as
Really series conductor part and parallel conductance part are respectively separated out N number of conductive module at first laser, then also need the 3rd road
Laser coincidence second laser grooving and scribing, forms N number of module separated；, then carry out the 3rd laser grooving and scribing series conductor portion, road then
Dividing and the sub-battery block of parallel conductance part, wherein, when delineating the sub-battery block of series conductor part, the 3rd road laser is inclined
Moving second laser grooving and scribing, concrete side-play amount is according to technological requirement, less than 100 μm, to ensure that series circuit turns on, and is carving
When drawing the sub-battery block of parallel conductance part, it is desirable to the 3rd road laser rays must overlap with the second laser rays of sub-battery block,
To ensure to separate between sub-battery block；Complete sub-series battery and the laser scoring of the sub-battery of parallel connection；
4) hull cell is annealed and after testing, sorting, the technique of hull cell comes ultrasonic bond at ultrasonic welding machine
Connecing drainage strip, first weld the drainage strip of series conductor part, the parallel sub-welding battery of drainage strip, each conductive module needs two
Drainage strip, the welding position of two drainage strips lays respectively at the inner side being close to sweep edge regions, described in sweep edge regions and refer to that TCO conducts electricity
Region, glass edge, it is 8mm that usual surrounding sweeps edge regions width；Weld the drainage strip of parallel conductance part the most again, draw
Stream bar is perpendicular to sub-welding battery, and each conductive module needs two drainage strips, and the welding position of two drainage strips is point equally
It is not positioned at the inner side being close to sweep edge regions；
5) pasting insulating tape, first paste the insulating tape of series conductor part, the insulating tape of series conductor part hangs down
Directly paste in sub-battery, and each conductive module must be pasted；Paste the insulating tape of parallel conductance part the most again, and
The insulating tape of connection current-carrying part is parallel to sub-battery and pastes, and equally, each conductive module must be pasted；Finally, then glue
Patch connects series conductor part and the insulating tape of parallel conductance part；
6) paste busbar, first paste the busbar of series conductor part, from conductive module negative pole limit drainage strip during stickup
On start to paste on the drainage strip of conductive module positive pole, by that analogy, until has pasted all conductive modules to this end, and remittance
Stream bar must be pasted onto on insulating tape, it is impossible to contacts with battery membranes layer, it is to avoid short circuit；Next, then paste parallel conductance part
Busbar, start to paste on the drainage strip of conductive module positive pole, with this during stickup from the drainage strip of conductive module negative pole limit
Analogize, until has pasted all conductive modules to this end, and busbar must be pasted onto on insulating tape, it is impossible to battery membranes layer
Contact, it is to avoid short circuit；Then, then the conductive module positive pole of series conductor part and the conductive module negative pole of parallel conductance part
Pasting and connect, and busbar must be pasted onto on insulating tape, it is impossible to contact with battery membranes layer, it is to avoid short circuit, finally series connection is led
The conductive module negative pole of electricity part and the conductive module positive pole of parallel conductance part are formed as the positive and negative electrode of whole battery component；
7) positive and negative electrode of busbar is the positive and negative electrode of battery, ready for installing rosette below；Through last part technology,
Including: coating butyl rubber, covering EVA film, laminating machine laminating battery sheet packaging, installation rosette, testing package, i.e. complete technique
Make the series-parallel film battery assembly obtained.
The present invention compared with prior art, has the advantage that and beneficial effect:
1, the membrane effect impact on electric power generation cell is reduced.When large-area coating film, film layer due to device structure and
Technology controlling and process is unstable, and plated film membrane uniformity is poor.If using series connection and the mode being connected in parallel to make assembly, can avoid
Or reduction membrane uniformity, thus reduce the internal resistance of cell, improve electric power generation cell.
2, the hot spot effect of battery can be reduced.Owing to the internal resistance of cell can generate heat in battery component power generation process, temperature liter
Height, we call hot spot effect this effect.After so using series connection and being connected in parallel, battery component internal resistance can be reduced, from
And reduce the hot spot effect of battery component, promote the generating efficiency of battery.
3, reduce the production cost of manufacturing enterprise and improve product yield.
4, (" dead band " refers to that first laser scoring is to the 3rd road laser incising can to effectively reduce " dead band " that laser scoring brings
Region area between line).After using the mode groove connected and be connected in parallel, three road laser scorings of parallel connection part are all
It is to overlap, reduces dead zone area, improve the effective area of cell power generation.
5, optimize the electrical parameter of battery component, preferably service for photovoltaic plant construction.The group that traditional technique makes
Part, particularly film assembly show as or electric current is higher, or voltage is higher, are unfavorable for type selecting and the photovoltaic plant of inverter
Design.Feature based on series circuit and parallel circuit uses series connection and mode in parallel to make assembly, can optimize balance electricity
Electric current in the assembly of pond and voltage parameter, be preferably power plant construction service.
Accompanying drawing explanation
Fig. 1 is the laser scoring mode schematic diagram being connected in series.
Fig. 2 is the series-connection circuit schematic diagram of Fig. 1.
Fig. 3 is the laser scoring mode schematic diagram being connected in parallel.
Fig. 4 be Fig. 3 be connected in parallel circuit diagram.
Fig. 5 is to use series connection and the laser scoring schematic diagram being connected in parallel.
Fig. 6 is that Fig. 5 uses series connection and is connected in parallel circuit diagram.
Fig. 7 is the laser scoring schematic diagram of the present invention.
Fig. 8 is the schematic diagram of ultra-sonic welded drainage strip.
Fig. 9 is the schematic diagram pasting insulating tape.
Figure 10 is the schematic diagram pasting busbar.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
The preparation method of the series-parallel film battery assembly described in the present embodiment, comprises the following steps:
1), after rectangular TCO electro-conductive glass edging being cleaned up, deliver to first laser equipment and carry out groove, first
Conducting film on TCO electro-conductive glass is divided into two that area is identical by road laser scoring (being called for short P1) parallel short sides delineation
Point, respectively series conductor part and parallel conductance part, this series conductor part is for the son electricity of ensuing laser delineation series connection
Pond (as shown in Figure 1), this parallel conductance part is for the sub-battery (as shown in Figure 3) of ensuing laser delineation parallel connection, and puts down
The laser rays dividing the conducting film on TCO electro-conductive glass is defined as middle bisector, i.e. centre separator bar, as shown in Figure 7；Connect
, series conductor part and parallel conductance part respectively depict further according to demand the conductive module of N number of area equation, N is just
Integer, finally, then carries out laser grooving and scribing to each conductive module so that each conductive module is all scored with n+1 area equation
Sub-battery block, n is positive integer.
2), after delineation first laser technology, TCO electro-conductive glass is after relevant coating process, and film layer forms thin-film electro
The PN junction in pond, is then delivered to second laser equipment, in second laser (being called for short P2) first coincidence first laser grooving and scribing
Between bisector series conductor part and parallel conductance part are separated；If series conductor part and parallel conductance part are
One laser is respectively separated out N number of conductive module, then also need second laser coincidence first laser grooving and scribing, formed N number of every
The module opened；Then, then second laser grooving and scribing series conductor part and the sub-battery block of parallel conductance part are carried out, wherein,
Delineate series conductor part sub-battery block time, second laser be skew first laser grooving and scribing, concrete side-play amount according to
Technological requirement, typically not greater than 100 μm, to ensure that series circuit turns on, and when delineating the sub-battery block of parallel conductance part,
Require that second laser rays must overlap with the first laser rays of sub-battery block, to ensure to separate between sub-battery block.
3) after having delineated second laser technology, hull cell plating back electrode film is after completing back electrode film making, thin
Film battery technique is come the 3rd road laser equipment and is started to delineate the 3rd road laser (being called for short P3), the same with second laser grooving and scribing,
Series conductor part and parallel conductance part are separated by the middle bisector of the 3rd road laser first coincidence second laser grooving and scribing；
Equally, if series conductor part and parallel conductance part are respectively separated out N number of conductive module at first laser, then also need
3rd road laser coincidence second laser grooving and scribing, forms N number of module separated；, then carry out the 3rd road laser grooving and scribing series connection then
Current-carrying part and the sub-battery block of parallel conductance part, wherein, when delineating the sub-battery block of series conductor part, the 3rd road swashs
Just skew second laser grooving and scribing, concrete side-play amount is according to technological requirement, and typically not greater than 100 μm, to ensure series circuit
Conducting, and when delineating the sub-battery block of parallel conductance part, it is desirable to the 3rd road laser rays must be with the second of sub-battery block
Laser rays overlaps, to ensure to separate between sub-battery block；Complete the laser scoring of sub-series battery and the sub-battery of parallel connection (as attached
Shown in Fig. 5).
4) hull cell is annealed and after testing, sorting, the technique of hull cell comes ultrasonic bond at ultrasonic welding machine
Connecing drainage strip, first weld the drainage strip of series conductor part, the parallel sub-welding battery of drainage strip, each conductive module needs two
Drainage strip, the welding position of two drainage strips lays respectively at the inner side (as shown in Figure 8) being close to sweep edge regions, described in sweep border area
Territory refers to region, TCO electro-conductive glass edge, and it is about 8mm that usual surrounding sweeps edge regions width；Weld parallel connection the most again to lead
The drainage strip of electricity part, drainage strip is perpendicular to sub-welding battery, and each conductive module needs two drainage strips, two drainage strips
Welding position is the inner side laying respectively at and being close to sweep edge regions equally.
5) pasting insulating tape, first paste the insulating tape of series conductor part, the insulating tape of series conductor part hangs down
Directly paste in sub-battery, and each conductive module must be pasted；Paste the insulating tape of parallel conductance part the most again, and
The insulating tape of connection current-carrying part is parallel to sub-battery and pastes (as shown in Figure 9), and equally, each conductive module must be pasted
On；Finally, then paste and connect series conductor part and the insulating tape of parallel conductance part.
6) paste busbar, first paste the busbar of series conductor part, from conductive module negative pole limit drainage strip during stickup
On start to paste on the drainage strip of conductive module positive pole, by that analogy, until has pasted all conductive modules to this end, and remittance
Stream bar must be pasted onto on insulating tape, it is impossible to contacts with battery membranes layer, it is to avoid short circuit；Next, then paste parallel conductance part
Busbar, start to paste on the drainage strip of conductive module positive pole, with this during stickup from the drainage strip of conductive module negative pole limit
Analogize, until has pasted all conductive modules to this end, and busbar must be pasted onto on insulating tape, it is impossible to battery membranes layer
Contact, it is to avoid short circuit；Then, then the conductive module positive pole of series conductor part and the conductive module negative pole of parallel conductance part
Pasting and connect, and busbar must be pasted onto on insulating tape, it is impossible to contact with battery membranes layer, it is to avoid short circuit, finally series connection is led
The conductive module negative pole of electricity part and the conductive module positive pole of parallel conductance part are formed as the positive and negative electrode of whole battery component
(as shown in Figure 9).
7) positive and negative electrode of busbar is the positive and negative electrode of battery, ready for installing rosette below；Through last part technology,
Including: coating butyl rubber, covering EVA film, laminating machine laminating battery sheet packaging, installation rosette, testing package, i.e. complete technique
Make the series-parallel film battery assembly (as shown in Figure 10) obtained.
In sum, we use in technique makes and are designed as a part for son electricity in parallel at same battery component
Pond, a part is sub-series battery, as shown in accompanying drawing 5 and Fig. 6.Contrast uses (such as accompanying drawing 4) in parallel and is connected in series (such as accompanying drawing
2) mode can optimize battery component unit for electrical property parameters, does not haves or voltage is higher, or the situation that electric current is higher, passes through
Select well photovoltaic DC-to-AC converter after optimizing design, reduce the difficulty of design of photovoltaic power station；Sub-battery for parallel connection part can reduce
The poor impact on electrical property of membrane uniformity；Parallel connection part can reduce the low-power caused owing to membrane uniformity is poor simultaneously
Problem, improves power and the product yield of assembly；Parallel connection part also can reduce " dead band " caused due to laser grooving and scribing, improves electricity
The utilization rate of pond generating area.The present invention only has laser grooving and scribing, drainage strip different with traditional handicraft with busbar welding in fact, its
Remaining technique is the most identical.Not only will not increase cost, moreover it is possible to solve to be connected in series the problem that sub-battery brings.If hull cell serves as a contrast
The end (such as TCO electropane) area is relatively big, after glass also can be bisected into two parts by us, by series conductor part and parallel connection
Current-carrying part is delineated as N number of conductive module respectively, more N number of module of series conductor part and parallel conductance part is delineated
There is n (n is positive integer) bar laser rays, obtain n+1 sub-battery, (ensure that intermodule area is identical when delineation is for N number of module,
Then in N number of module, n+1 sub-cell area of delineation is also identical).Then will by busbar below and drainage strip
Parallel conductance part and series conductor part couple together.It is understood that the feature of parallel circuit: (1) circuit connects feature: in parallel
Circuit is made up of main line and some branch roads, has " branch point ". every branch road each with formation loop, main line, have several branch roads,
Just there is several loop, if the membrane uniformity in certain region is poor or laser scoring causes bad in plated film, will not be to whole
Individual circuit has a significant effect, IAlways=I1+I2+I3……+In；(2) electrical appliance work characteristics: in parallel circuit, in a branch road
If electrical appliance does not works, the electrical appliance of other branch roads remains to work；(3) parallel circuit resistance feature: 1 ÷ RAlways=1 ÷ R1+1÷R2
+…+RnIn parallel circuit, the inverse of all-in resistance is equal to the sum reciprocal of each branch resistance；(4) parallel circuit voltage feature: UAlways
=U1=U2=...=Un voltage in parallel circuit is the most equal.
Present invention mainly solves that thin-film solar cells uniformity of film in manufacturing process is poor causes transformation efficiency relatively
Low problem, Improving The Quality of Products on the basis of not increasing product cost, wins the market simultaneously.Through primary Calculation, product turns
Change efficiency and can promote 1%, as calculated by 100MW/ annual capacity, that 1MW that can generate electricity every year more, calculate by 4 yuan/W, 400 can be produced
The profit of ten thousand yuan.
In a word, the present invention has fully taken into account the shortcoming that membrane uniformity after large-area coating film is poor, in conjunction with parallel circuit
With the feature of series circuit, dissolve film layer difference and be connected in series the problem that sub-battery brings；Also can be according to hull cell
Unit for electrical property parameters, solves by the present invention that voltage is higher or the feature that current sheet is high.Use this manufacturing process, by
In last part technology with to be connected in series mode identical, therefore there is no difference on cost, it is most important that solve us aborning
The problem being not fee from, is with a wide range of applications, and is worthy to be popularized.
Embodiment described above is only the preferred embodiments of the invention, not limits the practical range of the present invention with this, therefore
The change that all shapes according to the present invention, principle are made, all should contain within the scope of the present invention.
Claims (1)
1. the preparation method of a series-parallel film battery assembly, it is characterised in that comprise the following steps:
1) after being cleaned up by rectangular TCO electro-conductive glass edging, delivering to first laser equipment and carry out groove, first swashs
Conducting film on TCO electro-conductive glass is divided into two parts that area is identical by the delineation of light groove parallel short sides, is respectively series connection
Current-carrying part and parallel conductance part, this series conductor part is for the sub-battery of ensuing laser delineation series connection, this parallel conductance
Part delineates sub-battery in parallel for ensuing laser, and during the laser rays dividing the conducting film on TCO electro-conductive glass equally is defined as
Between bisector；Then, further according to demand, series conductor part and parallel conductance part are respectively depicted the conduction of N number of area equation
Module, N is positive integer, finally, more each conductive module is carried out laser grooving and scribing so that each conductive module is all scored with n+1
The sub-battery block of individual area equation, n is positive integer；
2), after delineation first laser technology, TCO electro-conductive glass is after relevant coating process, and film layer forms hull cell
PN junction, is then delivered to second laser equipment, and the middle bisector of second laser first coincidence first laser grooving and scribing will string
Connection current-carrying part and parallel conductance part separate；If series conductor part and parallel conductance part are the most each at first laser
It is separated out N number of conductive module, then also need second laser coincidence first laser grooving and scribing, form N number of module separated；Connect
, then carry out second laser grooving and scribing series conductor part and the sub-battery block of parallel conductance part, wherein, lead in delineation series connection
Electricity part sub-battery block time, second laser be skew first laser grooving and scribing, concrete side-play amount, according to technological requirement, does not surpasses
Cross 100 μm, to ensure that series circuit turns on, and when delineating the sub-battery block of parallel conductance part, it is desirable to second laser rays
Must overlap with the first laser rays of sub-battery block, to ensure to separate between sub-battery block；
3) after having delineated second laser technology, hull cell plating back electrode film, after completing back electrode film making, thin-film electro
Pool process is come the 3rd road laser equipment and is started to delineate the 3rd road laser, the same with second laser grooving and scribing, and the 3rd road laser is first
Series conductor part and parallel conductance part are separated by the middle bisector of coincidence second laser grooving and scribing；Equally, if gone here and there
Connection current-carrying part and parallel conductance part are respectively separated out N number of conductive module at first laser, then also need the 3rd road laser
Coincidence second laser grooving and scribing, forms N number of module separated；Then, then carry out the 3rd road laser grooving and scribing series conductor part and
The sub-battery block of parallel conductance part, wherein, when delineating the sub-battery block of series conductor part, the 3rd road laser is skew the
Two road laser grooving and scribings, concrete side-play amount is according to technological requirement, less than 100 μm, to ensure that series circuit turns on, and in delineation also
When joining the sub-battery block of current-carrying part, it is desirable to the 3rd road laser rays must overlap with the second laser rays of sub-battery block, to protect
Demonstrate,prove and separate between sub-battery block；Complete sub-series battery and the laser scoring of the sub-battery of parallel connection；
4) hull cell is annealed and after testing, sorting, the technique of hull cell is come ultra-sonic welded at ultrasonic welding machine and drawn
Stream bar, first welds the drainage strip of series conductor part, the parallel sub-welding battery of drainage strip, and each conductive module needs two drains
Bar, the welding position of two drainage strips lays respectively at the inner side being close to sweep edge regions, described in sweep edge regions and refer to TCO electro-conductive glass
Region, edge, it is 8mm that usual surrounding sweeps edge regions width；Weld the drainage strip of parallel conductance part, drainage strip the most again
Being perpendicular to sub-welding battery, each conductive module needs two drainage strips, and the welding position of two drainage strips is difference position equally
In being close to the inner side of sweeping edge regions；
5) pasting insulating tape, first paste the insulating tape of series conductor part, the insulating tape of series conductor part is perpendicular to
Sub-battery is pasted, and each conductive module must be pasted；Pasting the insulating tape of parallel conductance part the most again, parallel connection is led
The insulating tape of electricity part is parallel to sub-battery and pastes, and equally, each conductive module must be pasted；Finally, then paste even
Connect series conductor part and the insulating tape of parallel conductance part；
6) paste busbar, first paste the busbar of series conductor part, open from the drainage strip of conductive module negative pole limit during stickup
Begin to paste on the drainage strip of conductive module positive pole, by that analogy, until having pasted all conductive modules to this end, and busbar
Must be pasted onto on insulating tape, it is impossible to contact with battery membranes layer, it is to avoid short circuit；Next, then paste the remittance of parallel conductance part
Stream bar, starts to paste on the drainage strip of conductive module positive pole during stickup from the drainage strip of conductive module negative pole limit, by that analogy,
Until pasted all conductive modules to this end, and busbar must be pasted onto on insulating tape, it is impossible to contact with battery membranes layer,
Avoid short circuit；Then, then the conductive module positive pole of series conductor part and the conductive module negative pole of parallel conductance part paste
Connect, and busbar must be pasted onto on insulating tape, it is impossible to contact with battery membranes layer, it is to avoid short circuit, last series conductor portion
The conductive module negative pole divided and the conductive module positive pole of parallel conductance part are formed as the positive and negative electrode of whole battery component；
7) positive and negative electrode of busbar is the positive and negative electrode of battery, ready for installing rosette below；Through last part technology, bag
Include: coating butyl rubber, covering EVA film, laminating machine laminating battery sheet packaging, installation rosette, testing package, i.e. complete technique system
Make the series-parallel film battery assembly obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693657.XA CN106098809B (en) | 2016-08-19 | 2016-08-19 | A kind of preparation method of series-parallel film battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693657.XA CN106098809B (en) | 2016-08-19 | 2016-08-19 | A kind of preparation method of series-parallel film battery assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106098809A true CN106098809A (en) | 2016-11-09 |
| CN106098809B CN106098809B (en) | 2017-07-21 |
Family
ID=58069947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610693657.XA Active CN106098809B (en) | 2016-08-19 | 2016-08-19 | A kind of preparation method of series-parallel film battery assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106098809B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711284A (en) * | 2016-12-27 | 2017-05-24 | 中山瑞科新能源有限公司 | Double-section laminated parallel cadmium-telluride film solar cell manufacturing method |
| CN106944745A (en) * | 2017-04-22 | 2017-07-14 | 山东拜科通新材料科技有限公司 | A kind of laser processing for processing large format circuit |
| CN108649087A (en) * | 2018-05-09 | 2018-10-12 | 晶澳（扬州）太阳能科技有限公司 | A kind of solar cell module and preparation method thereof |
| CN109273545A (en) * | 2018-11-01 | 2019-01-25 | 成都中建材光电材料有限公司 | A kind of production method of cadmium telluride diaphragm solar battery component |
| CN115075443A (en) * | 2022-08-22 | 2022-09-20 | 天津耀皮工程玻璃有限公司 | Large-layout internal-spliced film BIPV building curtain wall power generation glass |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593901A (en) * | 1989-09-08 | 1997-01-14 | Amoco/Enron Solar | Monolithic series and parallel connected photovoltaic module |
| US20100087025A1 (en) * | 2008-10-07 | 2010-04-08 | Yung-Yuan Chang | Method for defect isolation of thin-film solar cell |
| CN102315334A (en) * | 2011-04-13 | 2012-01-11 | 东旭集团有限公司 | Manufacturing process of solar cell capable of changing rated output voltage |
| CN102714235A (en) * | 2010-01-22 | 2012-10-03 | 夏普株式会社 | Back contact solar cell, wiring sheet, solar cell having wiring sheet, solar cell module and production method for solar cell having wiring sheet |
| CN103378106A (en) * | 2012-04-28 | 2013-10-30 | 杜邦太阳能有限公司 | Solar cell and manufacturing method thereof |
| CN104282802A (en) * | 2013-09-27 | 2015-01-14 | 成都旭双太阳能科技有限公司 | Solar cell module with sub-cells connected in series and manufacturing method thereof |
| CN104904021A (en) * | 2012-11-05 | 2015-09-09 | 索莱克赛尔公司 | Systems and methods for monolithically isled solar photovoltaic cells and modules |
-
2016
- 2016-08-19 CN CN201610693657.XA patent/CN106098809B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593901A (en) * | 1989-09-08 | 1997-01-14 | Amoco/Enron Solar | Monolithic series and parallel connected photovoltaic module |
| US20100087025A1 (en) * | 2008-10-07 | 2010-04-08 | Yung-Yuan Chang | Method for defect isolation of thin-film solar cell |
| CN102714235A (en) * | 2010-01-22 | 2012-10-03 | 夏普株式会社 | Back contact solar cell, wiring sheet, solar cell having wiring sheet, solar cell module and production method for solar cell having wiring sheet |
| CN102315334A (en) * | 2011-04-13 | 2012-01-11 | 东旭集团有限公司 | Manufacturing process of solar cell capable of changing rated output voltage |
| CN103378106A (en) * | 2012-04-28 | 2013-10-30 | 杜邦太阳能有限公司 | Solar cell and manufacturing method thereof |
| CN104904021A (en) * | 2012-11-05 | 2015-09-09 | 索莱克赛尔公司 | Systems and methods for monolithically isled solar photovoltaic cells and modules |
| CN104282802A (en) * | 2013-09-27 | 2015-01-14 | 成都旭双太阳能科技有限公司 | Solar cell module with sub-cells connected in series and manufacturing method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711284A (en) * | 2016-12-27 | 2017-05-24 | 中山瑞科新能源有限公司 | Double-section laminated parallel cadmium-telluride film solar cell manufacturing method |
| CN106711284B (en) * | 2016-12-27 | 2018-06-15 | 中山瑞科新能源有限公司 | A kind of cadmium telluride diaphragm solar battery method of manufacturing technology of binodal lamination parallel connection |
| CN106944745A (en) * | 2017-04-22 | 2017-07-14 | 山东拜科通新材料科技有限公司 | A kind of laser processing for processing large format circuit |
| CN108649087A (en) * | 2018-05-09 | 2018-10-12 | 晶澳（扬州）太阳能科技有限公司 | A kind of solar cell module and preparation method thereof |
| CN108649087B (en) * | 2018-05-09 | 2020-11-13 | 晶澳太阳能有限公司 | Solar cell module and preparation method thereof |
| CN109273545A (en) * | 2018-11-01 | 2019-01-25 | 成都中建材光电材料有限公司 | A kind of production method of cadmium telluride diaphragm solar battery component |
| CN109273545B (en) * | 2018-11-01 | 2020-10-16 | 成都中建材光电材料有限公司 | Manufacturing method of cadmium telluride thin-film solar cell module |
| CN115075443A (en) * | 2022-08-22 | 2022-09-20 | 天津耀皮工程玻璃有限公司 | Large-layout internal-spliced film BIPV building curtain wall power generation glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106098809B (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106098809B (en) | A kind of preparation method of series-parallel film battery assembly | |
| CN204928739U (en) | Two -sided solar panel and two -sided solar cell | |
| CN105917472B (en) | High-efficiency solar panel | |
| CN106229353B (en) | A kind of film battery assembly preparation method first in parallel connected again | |
| CN105789359A (en) | Manufacturing method for double-face solar energy cell assembly | |
| CN206907783U (en) | A kind of two-sided photovoltaic module | |
| WO2023284100A1 (en) | Back-contact solar cell string, preparation method, assembly and system | |
| CN205303481U (en) | Solar cell module | |
| CN202049982U (en) | Solar photovoltaic assembly with parallel type battery cell strings | |
| CN104900734B (en) | Solar battery module and preparation method thereof | |
| CN106252446A (en) | A kind of low energy consumption solar module | |
| CN108428751B (en) | Shingle assembly structure | |
| CN106876503A (en) | Using the solar energy stacked wafer moudle of center convergence gate line electrode | |
| CN110854218A (en) | Grid line structure, solar cell, laminated tile assembly, printing method and manufacturing method | |
| WO2021013275A2 (en) | Shingled assembly, solar cell pieces, and manufacturing method for shingled assembly | |
| CN110071186B (en) | Thin film photovoltaic module inline structure and production process | |
| CN205609550U (en) | Double -sided solar battery component | |
| CN105140310B (en) | A kind of light-transmission type copper indium gallium selenide cell component preparation technology | |
| CN104701415A (en) | Manufacture method for solar cell module via solar cells different in structure | |
| CN103390672A (en) | Integrated thin-film solar battery component and preparation method thereof | |
| CN104701397B (en) | A kind of silicon-based film solar cells structure and processing technology | |
| WO2023202648A1 (en) | Photovoltaic module manufacturing method, and photovoltaic module | |
| WO2020052693A2 (en) | Laminated tile assembly, solar cell piece, and manufacturing method for laminated tile assembly | |
| CN116471856A (en) | Perovskite/crystalline silicon laminated cell photovoltaic module | |
| CN101483201A (en) | Direct connecting type thin-film solar cell module and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |