CN104900756B - Lamination technology of film photovoltaic assembly - Google Patents
Lamination technology of film photovoltaic assembly Download PDFInfo
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- CN104900756B CN104900756B CN201510200319.3A CN201510200319A CN104900756B CN 104900756 B CN104900756 B CN 104900756B CN 201510200319 A CN201510200319 A CN 201510200319A CN 104900756 B CN104900756 B CN 104900756B
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- 238000003475 lamination Methods 0.000 title claims abstract description 101
- 238000005516 engineering process Methods 0.000 title claims abstract description 26
- 238000010030 laminating Methods 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000004132 cross linking Methods 0.000 claims description 49
- 238000003825 pressing Methods 0.000 claims description 27
- 239000012528 membrane Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005457 optimization Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 76
- 239000010409 thin film Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000021615 conjugation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011243 crosslinked material Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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 relates to a lamination technology of a film photovoltaic assembly. The lamination technology comprises the flows of 1) preparing a battery chip; 2) leading a transmission structure; 3) laying a connection film layer; 4) laying a backboard package; 5) laminating a battery assembly; and 6) completing the battery assembly. In the flow 5), the lamination temperature is controlled between 160 and 165 DEG C, the lamination time is kept within 6-8 min, the vacuum-pumping time is controlled within 3 to 5 min, the laminating vacuum degree is kept between 0 and 50 Pa, and the laminating pressure is controlled between 0.4 and 0.6 that of the atmospheric pressure. The qualified rate and production efficiency of products are effectively improved, and the film photovoltaic assembly of higher reliability, longer service life and high stability and consistency can be obtained in the lamination process via optimization.
Description
Technical field
The present invention relates to photovoltaic cell technical field, specifically a kind of membrane photovoltaic component laminating technology.
Background technology
Thin-film solar cells as a kind of novel solar battery, due to its raw material sources extensively, low production cost,
It is easy to large-scale production, thus there is wide market prospect.Amorphous silicon film solar battery assembly is had a try using quasiconductor circle
The photovoltaic effect in face and luminous energy is directly translated into a kind of technology of electric energy, its concrete manufacturing step is as follows: 1, transparent
Chemically or physically vapor deposition reaction is passed through on the substrate of glass of conductive tco and forms generating agent structure；2nd, mutual with prepare
Solaode is welded as a whole by bracing；3rd, from top to bottom by glass, eva, cell power generation main part, eva, backboard vacuum hotpressing
Encapsulation；4th, termination is installed, installs aluminum alloy frame etc. additional and make solar module.To Thinfilm solar cell assembly
Performance requirement is that power attenuation is low, long working life, have enough mechanical strengths, because its electric layer and membrane of conducting layer expose
In atmosphere, be highly prone to chemical oxidation, physically aged, moisture attacks etc. impact, to the output of assembly, working life and
Mechanical strength causes lethal challenge it is therefore desirable to protect to it by vacuum lamination technology.Vacuum lamination is in battery component
Manufacture process in it is critical that one critical process, control in each laminating parameters for the existing laminating technology and cooperation
Degree is not perfect, and assembly is easy to produce bubble, starved, the undesirable condition such as the degree of cross linking is not good, peel strength is poor, directly affects group
The product qualified rate of part, dependability energy and service life.
Content of the invention
The technical purpose of the present invention is to provide a kind of membrane photovoltaic component laminating technology, solves in existing laminating technology easily
Generation bubble, the problem that assembly conjugation is low, bulk strength is poor.
The concrete technical scheme of the present invention is as follows: a kind of membrane photovoltaic component laminating technology, including following technological process,
1. prepare battery chip: deposit and be laminated in electrically conducting transparent substrate and make battery chip；
2. draw and connect transmission structure: welding lead formation battery transmission structure on described battery chip；
3. laying connects film layer: lays junctional membrane layer on described battery chip；
4. laying backboard encapsulation: set backboard on described connection film layer upper berth；
5. laminated cell assembly: the battery chip setting gradually by abovementioned steps, connection film layer and backboard are passed through
The battery component that lamination stages operation forms fine and close rigidity is overall；
6. complete battery component: rosette is installed and tests stepping, form solar module finished product；
Described step 5. in lamination stages environment specifically, control laminating temperature be 160 ~ 165 DEG C and keep lamination when
Between be 6 ~ 8min, control the pumpdown time be 3 ~ 5min and keep be laminated vacuum be 0 ~ 50pa, control lamination pressure be 0.4 ~
0.6 atmospheric pressure.
It is found by the applicant that the ambient parameter such as laminating temperature in existing laminating technology, lamination times and lamination pressure selects
Existing problems, and cooperation each other cannot obtain quality preferably battery component, although the laminating temperature of prior art makes
But it is relatively stable still inadequate to be laminated environment, described connection film layer be unable to reach preferably reaction temperature and be unfavorable for its from
Body Quick cross-linking solidifies, the reliability difficult to reach optimum efficiency of component package；In addition decompose in described connection film layer and not fill
The crosslinked material dividing easily remains, and can have a strong impact on outward appearance and the service life of assembly, crosslinked mass degradation mistake during use
The ageing failure of assembly is also resulted in journey.And the improvement to the laminating temperature of prior art is not merely simple heating and cooling,
Pumpdown time, lamination times are equally cooperating therewith and affect properties of product, need just can look for through constantly groping test
To suitable parameter value, and in existing technology, lamination time effects, to the described cross-linking and curing reaction connecting film layer, often make
Lamination becomes bottleneck operation in solar module production process, occur that production run efficiency is low, lamination process
The irrational situation of energy consumption.Furthermore, the lamination pressure matching frequently more is relied on to reduce assembly bubble incidence rate, but not
When lamination pressure be assembly sliver fraction defective a big reason.Therefore applicant examines in the synthesis of at least the above prior art overview
Consider and descend the lamination scheme it was found that after Reasonable Regulation And Control.
Preferably, described step 3. in described connection film layer include at least two-layer crosslinking film layer and located at described crosslinking
Flexible extension film layer between film layer.Described crosslinking film layer can adopt the material such as eva, pvb, but not limited to this；Described flexibility is prolonged
Exhibition film layer can adopt the materials such as pet, but not limited to this.Described crosslinking film layer is as the full described battery chip of binding agent filling and institute
State the space between backboard, described battery chip inside, but all non-telescope ductility of conventional battery pack internal structure, relatively
For hard, in laminating operation, the mobility of bonding agent is very poor, easily forms bubble in component internal, and holds in lamination process
Easily because lamination pressure is improper easily causes extruding rhegma, therefore the setting of described flexibility extension film layer ensures described crosslinking during lamination
The smooth outflow in melting, crosslinking curing for the material of film layer, forms preferable glue seal structure.
Preferably, described crosslinking film layer includes at least one of which transparent crosslinking film layer and at least one of which white crosslinking film layer,
Described transparent crosslinking film layer is laminated with random order with described white crosslinking film layer.
Preferably, the thickness of described white crosslinking film layer is 0.1 ~ 0.3mm, the thickness of described transparent crosslinking film layer is
0.3~0.5mm.
The sunlight coming from described battery chip transmission can be reflexed to described battery by described white crosslinking film layer again
Chip, increases the absorbance to sunlight and utilization rate, and then improves battery efficiency.Described white crosslinking film surface and close
The shallower aspect on surface is photoemissive main spot, therefore described white crosslinking film layer should control in reasonably relatively thin thickness
Degree, and described transparent crosslinking film layer be disposed to coordinate described white crosslinking film layer to be collectively forming integral thickness rationally up to standard
Described crosslinking film layer, and for described crosslinking film layer, the parameter setting of described lamination stages environment coordinates for it and reaches
Purpose to intact lamination.
Preferably, described flexibility extension film layer is through lamination treatment, described lamination treatment environment specially controls lamination
Temperature is 130 ~ 140 DEG C and keeps lamination times to be 3 ~ 5min, controls the pumpdown time to be 2 ~ 3min and keep being laminated vacuum
For 0 ~ 100pa, control lamination pressure is 0.1 ~ 0.3 atmospheric pressure.Described flexibility extension film layer can be thicker one-piece construction,
It is alternatively relatively thin multiple-piece construction, more preferably mode is multiple-piece construction, described flexibility extension film layer passes through lamination treatment,
It is easy to reduce the deformation of its own and described battery component remainder in described lamination stages forming process, thus ensureing institute
State the total quality of battery component, preferably protect internal cell chip, improve yield rate.
Preferably, 5. described step also includes pre-pressing stage, described pre-pressing stage environment specially controls laminating temperature
For 130 ~ 150 DEG C, control the pumpdown time be 3 ~ 5min and keep be laminated vacuum be 0 ~ 50pa, control lamination pressure be 0.3 ~
0.4 atmospheric pressure simultaneously keeps lamination times to be 2 ~ 4min.
Preferably, 5. described step also includes pre-pressing stage, described pre-pressing stage is included for discharging described set of cells
The first stage of part air entrapment and the second stage binding described battery component for guiding.
Preferably, described first stage environment is specifically, control laminating temperature to be 130 ~ 150 DEG C, when controlling evacuation
Between for 3 ~ 5min and keep be laminated vacuum be 0 ~ 50pa, control lamination pressure be 0.3 ~ 0.35 atmospheric pressure and keep lamination when
Between be 1 ~ 2min；Described second stage environment specifically, control laminating temperature be 130 ~ 150 DEG C, control the pumpdown time be 3 ~
It is 0 ~ 50pa that 5min simultaneously keeps being laminated vacuum, control lamination pressure be 0.35 ~ 0.4 atmospheric pressure and keep lamination times be 1 ~
2min.
Preferably, described pre-pressing stage is by the way of described first stage and described second stage alternate repetition.Institute
Stating pre-pressing stage guarantees that described battery chip therein and its gap to described backboard are filled up by preliminary guiding, described
Bubble within battery component is tentatively discharged, and each several part of described battery component all reaches good relative laminated position, is
Subsequently formal described lamination stages are laid the groundwork, and are unlikely to impact bubble on the contrary during the moment formal lamination stages environment of entrance
The situations such as exclusion, lamination displacement.In short-term, precompressed repeatedly contributes to solving above-mentioned undesirable condition, before doing for formal lamination stages
Sequence works, and is more favorably laminated out qualified product.
Preferably, 5. described step also includes warm-up phase, described warm-up phase is specifically, control preheating temperature is
120 ~ 150 DEG C and keep be 1 ~ 2min preheating time.Described warm-up phase guarantees to be laminated the temperature section good transition of environment, prevents
Be likely to occur because be laminated environment temperature moment too high make described crosslinking film layer melting too fast intercepted on the contrary original air and
The situation that newly-generated air is discharged, so that bubble, becomes defective products.
The technological merit of the present invention is that described membrane photovoltaic component laminating technology adopts different from existing lamination environment,
The effectively qualification rate of improving product and production efficiency, passes through to optimize acquisition lamination process acquisition better reliability simultaneously, uses the longevity
Order longer, stability in the large and the excellent Thinfilm solar cell assembly of concordance.The invention enables described crosslinking film layer can
Under preferably laminating temperature, fully melting carries out crosslinking curing, and crosslinked material seldom remains without making described battery component
In subsequently long-term routine use, the situations such as xanthochromia, layering occur, thus outward appearance, sealing protection performance and service life all obtain greatly
Width improves, non-aging inefficacy；It is whole well to complete that rational lamination times ensure that described crosslinking film layer absorbs enough heats
Individual cross-linking and curing reaction, it is ensured that lamination will not become the bottleneck program in production process, improves prouctiveness, reduces and runs
Energy consumption；Will not as the prior art with the lamination pressure of aforementioned cooperation, relying on increases lamination pressure and sends out reducing assembly bubble
Raw rate, mitigates machine operation load, reduces the risk of assembly sliver further, improves assembly yields.
Specific embodiment
Below will the invention will be further described by specific embodiment:
Embodiment one: a kind of membrane photovoltaic component laminating technology, including following technological process,
1. prepare battery chip: plasma activated chemical vapour deposition is passed through on the transparent tco conducting film of glass substrate
(pecvd), physical vapour deposition (PVD) (pvd) reactive deposition p-type, i type, three layers of a-si amorphous thin Film layers of N-shaped and back electrode thin film
Layer, forms the agent structure that thin-film solar cells generate electricity；
2. draw and connect transmission structure: by ultrasonic welding technique, weld respectively in the back electrode of thin-film solar cells chip
Connect drainage strip, busbar, draw both positive and negative polarity respectively from the tco conducting film of thin-film solar cells and back electrode, form thin film too
The battery transmission structure of sun energy battery chip；
3. laying connects film layer: connects film layer in battery chip surface stack paving, connects film layer and include at least two-layer friendship
Connection film layer and the flexible extension film layer between crosslinked film layer.Crosslinked film layer includes at least one of which transparent crosslinking film layer and at least
One layer of white crosslinking film layer, transparent crosslinking film layer is laminated with random order with white crosslinking film layer.The thickness of white crosslinking film layer
For 0.2mm, the thickness of transparent crosslinking film layer is 0.4mm.It is eva or polyethylene that crosslinked film layer may be selected vinyl acetate thin-film material
Butyral thin-film material is pvb etc., and white crosslinking film layer is oppositely arranged the relatively thin reflection being because light using mainly generation
In film surface and shallower aspect, transparent crosslinking film layer is oppositely arranged and thicker is because two-layer crosslinking film layer additional flexibility tensile membrane
The gross thickness of layer is limited by Thinfilm solar cell assembly processing technology, therefore is used for coordinating white crosslinking film layer and flexible tensile membrane
Layer.The setting of two-layer crosslinking film layer can also save traditional light anti-while ensureing and strengthen battery component entirety conjugation
Penetrate setting technique, reduce cost input, improve work efficiency.And the setting of flexible extension film layer is and for crosslinked film layer
Preferably utilize.Flexible extension film layer may be selected the materials such as pet film, and it is as the good ductility of intermediate carrier itself in lamination
When so that crosslinked film layer can fully permeate flowing in crosslinking curing, form preferably binder courses, it is to avoid bubble formation.Soft
Property extension film layer itself through lamination treatment, lamination treatment environment is specially and controls laminating temperature to be 135 DEG C and when keeping lamination
Between be 4min, control the pumpdown time be 2.5min and keep be laminated vacuum be 80pa, controls lamination pressure be 0.2 air
Pressure.Flexible extension film layer after lamination treatment can reduce the deformation that itself and other film layers occur in common lamination so that
Thinfilm solar cell assembly entirety conjugation is strong, concordance is good.
4. laying backboard encapsulation: set backboard on crosslinked film layer upper berth, backboard can be float glass, epoxy resin board, the tpt back of the body
The materials such as plate.
5. laminated cell assembly: the battery chip setting gradually by abovementioned steps, connection film layer and backboard are passed through
The battery component that lamination stages operation forms fine and close rigidity is overall；Lamination stages environment is specifically, be heated to setting laminating machine
163 DEG C of laminating temperature, can suitably be adjusted within this range according to different crosslinked film layer characteristics；Treat layer by lay
Thinfilm solar cell assembly faces down pressure according to chip light, the face-up mode of back-panel glass is put in laminating machine；And protect
Holding lamination times is 7min, controls the pumpdown time to be 4min and keep being laminated vacuum for 25pa, controls lamination pressure to be 0.5
Individual atmospheric pressure.In order to preferably exclude volatile matters, make assembly internal/external heating uniformly, the pressurization that heats up is unsuitable too fast.
6. complete battery component: rosette is installed and tests stepping, form solar module finished product.
Embodiment two: with the difference of embodiment one, the present embodiment is that 5. step also includes pre-pressing stage, pre-pressing stage ring
Border is specially and controls laminating temperature to be 145 DEG C, and the control pumpdown time is 4min and keeps being laminated vacuum is 30pa, key-course
Pressure pressure is 0.35 atmospheric pressure and keeps lamination times to be 3min.Pre-pressing stage is included for discharging battery component air entrapment
First stage and for guiding bonding battery component second stage.First stage environment is specifically, control laminating temperature is
140 DEG C, the control pumpdown time is 4min and keeps being laminated vacuum is 35pa, controls lamination pressure for 0.33 atmospheric pressure simultaneously
Holding lamination times are 1.5min；Second stage environment specifically, control laminating temperature be 140 DEG C, control the pumpdown time be
4min simultaneously keeps being laminated vacuum for 20pa, controls lamination pressure to be 0.38 atmospheric pressure and keep lamination times to be 1.5min.
Pre-pressing stage guarantees that each several part laminated position of battery component is in or is smoothly transitted into correct laminated position, and guides in advance
Crosslinked film layer fully flows, discharges volatizable air, to form well stable formal lamination stages.
Embodiment three: with the difference of embodiment one, the present embodiment is that 5. step also includes pre-pressing stage, pre-pressing stage ring
Border is specially and controls laminating temperature to be 130 DEG C, and the control pumpdown time is 5min and keeps being laminated vacuum is 50pa, key-course
Pressure pressure is 0.3 atmospheric pressure and keeps lamination times to be 2min.Pre-pressing stage is included for discharging battery component air entrapment
First stage and for guiding bonding battery component second stage.First stage environment is specifically, control laminating temperature is
130 DEG C, the control pumpdown time is 3min and keeps being laminated vacuum is 50pa, controls lamination pressure for 0.30 atmospheric pressure simultaneously
Holding lamination times are 1min；Second stage environment specifically, control laminating temperature be 150 DEG C, control the pumpdown time be
5min simultaneously keeps being laminated vacuum for 50pa, controls lamination pressure to be 0.40 atmospheric pressure and keep lamination times to be 2min.And
And pre-pressing stage is by the way of first stage and second stage alternate repetition.In short-term, pre-pressing stage repeatedly guarantees set of cells
The each several part laminated position of part is in or is smoothly transitted into correct laminated position, and guide crosslinked film layer fully to flow in advance,
Discharge volatizable air, to form well stable formal lamination stages.
Example IV: with the difference of embodiment one, the present embodiment is that 5. step also includes warm-up phase, warm-up phase has
Body is to control preheating temperature to be 150 DEG C and keep be 2min preheating time.Warm-up phase guarantees that the temperature section being laminated environment is good
Transition, the temperature moment because being laminated environment preventing from being likely to occur is too high to make that crosslinked film layer melting is too fast to have intercepted original sky on the contrary
Gas and the situation of newly-generated air discharge, so that bubble, become defective products.
Embodiment five: with the difference of embodiment one, the present embodiment is that 5. step also includes warm-up phase, warm-up phase has
Body is to control preheating temperature to be 140 DEG C and keep be 1.5min preheating time, warm-up phase guarantees that the temperature section being laminated environment is good
Good transition, the temperature moment because being laminated environment preventing from being likely to occur is too high make crosslinked film layer melting too fast intercepted on the contrary original
Air and the situation of newly-generated air discharge, so that bubble, become defective products.Afterwards, pre-pressing stage, precompressed rank are also included
Section environment is specially and controls laminating temperature to be 140 DEG C, and the control pumpdown time is 3.5min and keeps being laminated vacuum is 50pa,
Lamination pressure is controlled to be 0.35 atmospheric pressure and keep lamination times to be 2.5min.Pre-pressing stage is included for discharging battery component
The first stage of air entrapment and the second stage for guiding bonding battery component.First stage environment is specifically, key-course
Pressure temperature is 138 DEG C, controls the pumpdown time to be 3.8min and keep being laminated vacuum 50pa, controls lamination pressure to be 0.35
Atmospheric pressure simultaneously keeps lamination times to be 2min；Second stage environment, specifically, controlling laminating temperature to be 145 DEG C, controls evacuation
Time is 5min and keeps being laminated vacuum is 50pa, controls lamination pressure to be 0.39 atmospheric pressure and keep the lamination times to be
1.9min.Pre-pressing stage guarantees that each several part laminated position of battery component is in or is smoothly transitted into correct laminated position, and
Crosslinked film layer is guided fully to flow, discharge volatizable air, to form well stable formal lamination stages in advance.
Embodiment six: with the difference of embodiment one, the present embodiment is that 5. step also includes warm-up phase, warm-up phase has
Body is to control preheating temperature to be 120 ~ 150 DEG C and keep be 1 ~ 2min preheating time, warm-up phase guarantees to be laminated the temperature of environment
Section good transition, the temperature moment because being laminated environment preventing from being likely to occur is too high to make that crosslinked film layer melting is too fast to be intercepted on the contrary
Original air and the situation of newly-generated air discharge, so that bubble, become defective products.Afterwards, also include pre-pressing stage, in advance
Pressure stage environment is specially and controls laminating temperature to be 130 ~ 150 DEG C, controls the pumpdown time to be 3 ~ 5min and keep being laminated vacuum
Spend for 0 ~ 50pa, control lamination pressure to be 0.3 ~ 0.4 atmospheric pressure and keep lamination times to be 2 ~ 4min.Pre-pressing stage includes using
Second stage in the first stage discharging battery component air entrapment with for guiding bonding battery component.First stage environment
Specifically, control laminating temperature be 130 ~ 150 DEG C, control the pumpdown time be 3 ~ 5min and keep be laminated vacuum be 0 ~
50pa, controls lamination pressure to be 0.30 ~ 0.35 atmospheric pressure and keep lamination times to be 1 ~ 2min；Second stage environment is concrete
For controlling laminating temperature to be 130 ~ 150 DEG C, controlling the pumpdown time to be 3 ~ 5min and keep lamination vacuum to be 0 ~ 50pa, control
Preparative layer pressure pressure is 0.35 ~ 0.40 atmospheric pressure and keeps lamination times to be 1 ~ 2min.And pre-pressing stage adopts the first stage
Mode with second stage alternate repetition.In short-term, pre-pressing stage repeatedly guarantees that each several part laminated position of battery component is in
Or it is smoothly transitted into correct laminated position, and guide crosslinked film layer fully to flow, discharge volatizable air in advance, good to be formed
Stable formal lamination stages.
Claims (9)
1. a kind of membrane photovoltaic component laminating technology it is characterised in that: include following technological process,
1. prepare battery chip: deposit and be laminated in electrically conducting transparent substrate and make battery chip；
2. draw and connect transmission structure: welding lead formation battery transmission structure on described battery chip；
3. laying connects film layer: lays junctional membrane layer on described battery chip；
4. laying backboard encapsulation: set backboard on described connection film layer upper berth；
5. laminated cell assembly: by the battery chip setting gradually by abovementioned steps, connect film layer and backboard by lamination
It is overall that stage procedure forms battery component；
6. complete battery component: rosette is installed and tests stepping, form solar module finished product；
Described step 5. in lamination stages environment specifically, controlling laminating temperature to be 160 ~ 165 DEG C and keep lamination times to be 6
~ 8min, controls the pumpdown time to be 3 ~ 5min and keep being laminated vacuum for 0 ~ 50pa, controls lamination pressure to be 0.4 ~ 0.6
Atmospheric pressure；Described step 3. in described connection film layer include at least two-layer crosslinking film layer and located at described crosslinking film layer between
Flexible extension film layer.
2. a kind of membrane photovoltaic component laminating technology according to claim 1 it is characterised in that: described crosslinking film layer include
At least one of which transparent crosslinking film layer and at least one of which white crosslinking film layer, described transparent crosslinking film layer and described white crosslinking film layer
With random order stacking.
3. a kind of membrane photovoltaic component laminating technology according to claim 2 it is characterised in that: described white crosslinking film layer
Thickness be 0.1 ~ 0.3mm, described transparent crosslinking film layer thickness be 0.3 ~ 0.5mm.
4. a kind of membrane photovoltaic component laminating technology according to claim 1 or 2 or 3 it is characterised in that: described flexibility is prolonged
Exhibition film layer through lamination treatment, described lamination treatment environment be specially control laminating temperature be 130 ~ 140 DEG C and keep lamination when
Between be 3 ~ 5min, control the pumpdown time be 2 ~ 3min and keep be laminated vacuum be 0 ~ 100pa, control lamination pressure be 0.1 ~
0.3 atmospheric pressure.
5. a kind of membrane photovoltaic component laminating technology according to claim 4 it is characterised in that: 5. described step also includes
Pre-pressing stage, described pre-pressing stage environment is specially and controls laminating temperature to be 130 ~ 150 DEG C, and the control pumpdown time is 3 ~ 5min
And to keep being laminated vacuum be 0 ~ 50pa, controls lamination pressure is 0.3 ~ 0.4 atmospheric pressure, and keep lamination times be 2 ~
4min.
6. a kind of membrane photovoltaic component laminating technology according to claim 5 it is characterised in that: 5. described step also includes
Pre-pressing stage, described pre-pressing stage includes the first stage for discharging described battery component air entrapment and binds for guiding
The second stage of described battery component.
7. a kind of membrane photovoltaic component laminating technology according to claim 6 it is characterised in that: described first stage environment
Specifically, control laminating temperature be 130 ~ 150 DEG C, control the pumpdown time be 3 ~ 5min and keep be laminated vacuum be 0 ~
50pa, control lamination pressure is 0.3 ~ 0.35 atmospheric pressure, and keeps lamination times to be 1 ~ 2min；Described second stage environment tool
Body is to control laminating temperature to be 130 ~ 150 DEG C, controls the pumpdown time to be 3 ~ 5min and keep lamination vacuum to be 0 ~ 50pa,
Control lamination pressure is 0.35 ~ 0.45 atmospheric pressure, and keeps lamination times to be 1 ~ 2min.
8. a kind of membrane photovoltaic component laminating technology according to claim 7 it is characterised in that: described pre-pressing stage adopts
Described first stage and the mode of described second stage alternate repetition.
9. a kind of membrane photovoltaic component laminating technology according to claim 4 it is characterised in that: 5. described step also includes
Warm-up phase, described warm-up phase is specifically, control preheating temperature to be 120 ~ 150 DEG C and keep be 1 ~ 2min preheating time.
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| CN106271014B (en) * | 2016-08-31 | 2018-10-16 | 西安泰力松新材料股份有限公司 | A kind of series-mounting and dereliction grid cell concatenation machine of dereliction grid solar cell |
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