CN105322039B - Ultralight flexible crystalline silicon solar cell modules and preparation method thereof - Google Patents
Ultralight flexible crystalline silicon solar cell modules and preparation method thereof Download PDFInfo
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- CN105322039B CN105322039B CN201510630772.8A CN201510630772A CN105322039B CN 105322039 B CN105322039 B CN 105322039B CN 201510630772 A CN201510630772 A CN 201510630772A CN 105322039 B CN105322039 B CN 105322039B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of ultralight flexible crystalline silicon solar cell modules and preparation method thereof, ultralight flexible crystalline silicon solar cell modules include cephacoria, solar cell, backing material, packaging plastic and caudacoria, are arranged and through vacuum hot pressing formation by the order of cephacoria, packaging plastic, solar cell, packaging plastic, backing material and rear mold.Preparation method is：According to the order lamination for being from top to bottom cephacoria, packaging plastic, solar cell, packaging plastic, backing material and rear mold, under the vacuum condition that temperature is 100 DEG C~150 DEG C, pressure is 15Kpa~30Kpa, solidify 30 min~60min, obtain ultralight flexible crystalline silicon solar cell modules.The ultralight flexible crystalline silicon solar cell modules of the present invention have the advantages that high generation efficiency, pliability, in light weight, and preparation method of the invention is integrally formed, and technique is simple.
Description
Technical field
The invention belongs to area of solar cell, more particularly to a kind of ultralight flexible crystalline silicon solar cell modules and its system
Preparation Method.
Background technology
With the development of solar photovoltaic industry, photovoltaic generation is increasingly popularized, under various curved surfaces and low load-bearing environment
Higher requirement is proposed to the weight and pliability of component using solar power generation.HAE dirigible, long endurance nobody
Machine is all to provide energy using solar power generation, but its weight to solar cell is very sensitive, in the market conventional solar cell
It is difficult to reach and requires.Existing crystalline silicon solar cell modules are that cell piece is protected using glass as encapsulating material mostly, weight
Measure heavier, it is impossible to bend, limit its application in some fields.Chinese utility model patent 201120318220.0 is public
A kind of ultra-thin solar cell module has been opened, the glass of conventional crystalline silicon component has simply been made into light-transmissive film, has solved crystalline substance
The flexible problem of body silicon component, but there is no certain toughness when component has flexible, the easy fragmentation of solar cell, cause component
Failure, and the component of this method is still heavier.Chinese utility model patent 201220268254.8 discloses a kind of flexibility
Crystal silicon solar battery component, glass is changed into outside light-transmissive film, also utilize watt gram E41 bonding agent adhesions in module backside
One carbon fiber reinforcing mat, backing material is added at the back side of solar module, and backing material and solar cell be not direct
Contact, in be spaced layer of material（Membrane material either back veneer material afterwards）, such mode can be directly with glue the sun
Battery component is bonded together with backing material, and process implementing gets up simple and convenient, but this method has following defect：1. this
Kind supporting construction will coat one layer of bonding agent and is bonded, complex process, and add solar module weight using glue
Amount；2. backing material protrusion brings many inconvenience in the solar module back side, the installation to solar module, limiting it makes
Use scope.The less efficient or cost of the film sun such as general CIGS, non-crystalline silicon is too high, can not also extensive industrialization.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided one kind has high generation efficiency, soft concurrently
Toughness, ultralight flexible crystalline silicon solar cell modules in light weight, also provide a kind of integrally formed ultralight flexible crystalline silicon too
The preparation method of positive battery component.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of ultralight flexible crystalline silicon solar cell modules, including cephacoria, solar cell and backing material, in addition to encapsulation
Glue and caudacoria, the cephacoria, solar cell, backing material, packaging plastic and caudacoria are by cephacoria, packaging plastic, solar cell, encapsulation
The order arrangement of glue, backing material and caudacoria simultaneously forms ultralight flexible crystalline silicon solar cell modules through vacuum hotpressing.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the backing material is carbon fiber or glass fibers
Tie up once the fiber rack of hot-forming composition, thickness≤0.08mm of the backing material.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the packaging plastic is PUR, the PUR
Surface density be 10 g/m2~50g/m2。
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the PUR is polyolefin.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the solar cell is multiple solar cell pieces
It is welded in series or in parallel, the solar cell piece is single crystal silicon solar cell or polycrystalline silicon solar cell.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the thickness of the solar cell piece be 50 μm~
150μm。
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the caudacoria is white PET film, the caudacoria
Thickness be 20 μm~30 μm.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the cephacoria is ETFE films or PET film, described
The thickness of cephacoria is 20 μm~40 μm.
Above-mentioned ultralight flexible crystalline silicon solar cell modules, it is preferred that the cephacoria passes through sided corona treatment.
The inventive concept total as one, the present invention also provide a kind of above-mentioned ultralight flexible crystalline silicon solar cell modules
Preparation method, comprise the following steps：By cephacoria, solar cell, backing material, packaging plastic according to from top to bottom be cephacoria, envelope
The order lamination of glue, solar cell, packaging plastic, backing material and caudacoria is filled, first at a temperature of 80 DEG C~100 DEG C, keeps 1
Min~3min, then under the vacuum condition that temperature is 100 DEG C~150 DEG C, pressure is 15Kpa~30Kpa, solidification 30min~
60min, obtain ultralight flexible crystalline silicon solar cell modules.
Compared with prior art, the advantage of the invention is that：
1st, ultralight flexible crystalline silicon solar cell modules of the invention, by cephacoria, packaging plastic, solar panel, packaging plastic,
Simultaneously vacuum hotpressing is integrally formed for backing material and the arrangement of rear mold order, without the technique for sticking of complexity, that is, does not need adhesive glue,
Lightweight packages are also mitigated while technique is simplified.It is big to solve existing crystalline silicon solar cell modules weight, it is impossible to curved
Bent problem, while the characteristics of have high light weight, intensity, good toughness concurrently.
2nd, ultralight flexible crystalline silicon solar cell modules of the invention, the packaging plastic of back of crystal silicon solar cell are built-in with
Backing material, backing material set caudacoria again afterwards, solve the problems, such as that backing material influences component and installed and used, can both have
Effect protects solar cell not fractureed locally, avoids causing battery is hidden to split or fail, while component can also keep certain soft
Toughness and bending property.Backing material is placed on the cell piece back side, by packaging plastic one-shot forming, therefore need not be in addition using viscous
Connect material to bond together backing material and cell piece, so both reduced adhesives use, and decreased processing step,
Also reduce lightweight packages simultaneously.
3rd, there is following technical barrier in backing material built in the packaging plastic of back of solar cell：First, backing material and the sun
Battery is directly contacted, and the hidden risk split or crushed of solar cell may be caused in encapsulation process；Second, backing material may
And the risk that comes off insecure with encapsulation glue sticking.The present invention ultralight flexible crystalline silicon solar cell modules, backing material by
Carbon fibre composite either glass fibre primary is hot-forming to form fiber rack, the contact surface of this rack and packaging plastic
Product is big, and adhesive strength is firm.And experiment confirms that it is be bonded more firm after being encapsulated with polyolefin.Hot-forming fiber rack
The surface of material is smooth, and thickness is within 0.08mm, and supporting network frame material has certain pliability, so ensures encapsulating
During backing material to produce stress when being contacted with solar cell smaller, will not cause solar cell is hidden to split or crush.In addition,
Hot-forming fiber rack has a variety of superiority such as in light weight, high intensity, high-modulus, high temperature resistant, corrosion-resistant, antifatigue
Can, meet the support requirement needed for flexible solar cell.The fiber wire frame shape of shaping can pass through according to the bending of component requirement
Different moulds is made so as to design different shapes.Shape can be hexagon, matrix pattern etc..
4th, ultralight flexible crystalline silicon solar cell modules of the invention, packaging plastic is PUR, and the surface density of PUR exists
Between 10-50g/m2.The characteristics of being melted at high temperature using PUR, being solidified, can be avoided to cell piece in encapsulation process
Apply external force, prevent sliver.Flexible adhesive curing and pliability are heated simultaneously, can ensure crystalline silicon solar cell modules
Pliability.PUR further uses polyolefin, with EVA film（Ethylene-vinyl acetate copolymer）Compare, polyolefin is in resistance to environment
The anti-PID aspect of performances of ageing properties, component have larger improvement.
5th, ultralight flexible crystalline silicon solar cell modules of the invention, solar cell is multiple monocrystalline silicon or the polysilicon sun
Cell piece is welded in series or in parallel, the silicon chip warp used in single crystal silicon solar cell or polycrystalline silicon solar cell piece
Cross and be thinned, thickness is about at 50 μm~150 μm（Conventional crystal-silicon solar cell thickness is 200 μm or so）, after being thinned too
Positive electricity pond fragility substantially reduces, and pliability increase, can carry out a certain degree of bending, therefore be not easy to produce in encapsulation process
Life is hidden to be split.The quantity of solar cell can be arranged according to the needs of component in component, and the size of solar cell can also root
It is designed according to the needs of component.
6th, ultralight flexible crystalline silicon solar cell modules of the invention, be at the back side of solar module backing material it
Caudacoria is provided with afterwards, solves the problems, such as that backing material influences component and installed and used, furthermore it is also possible to prevent that external environment is internal
The injury of portion's cell piece.Caudacoria is using ultra-thin（20 μm~30 μm）White PET film, have it is in light weight the characteristics of, while white
Can be with reflective, by increasing capacitance it is possible to increase the light utilization efficiency of solar cell, improve generated energy.
7th, ultralight flexible crystalline silicon solar cell modules of the invention, cephacoria are ultra-thin by thickness（20 μm~40 μm）'s
ETFE films or PET film, it is in light weight, can arbitrarily it bend, while there is high light transmittance and high mechanical properties.And cephacoria is by electricity
Dizzy processing, can improve its adhesive capacity.
8th, the preparation method of ultralight flexible crystalline silicon solar cell modules of the invention, relatively lower temp is first taken to allow heat
Melten gel melts, and then high-temperature pressurizing solidifies again.It is possible to prevente effectively from PUR flows and causes solar cell is hidden to split problem.It is made
The surface density of standby ultralight flexible crystalline silicon solar cell modules is in 400g/m2Within, bending radius is less than 0.5m, component conversion
Efficiency reaches 16%.The component has stronger toughness, is not in the failure phenomenon such as fracture, solar cell is served effectively
Protection.And the ultralight flexible crystalline silicon solar cell modules ageing resistace that such a structure and technique are made is strong, 85 DEG C,
It is still intact under 85% humidity environment after aging in 1000 hours, there is not situations such as backing material comes off.In addition, the sun is electric
The welding in pond can use ultra-thin ultra-soft welding, and welding thickness is less than 0.1mm, can be greatly decreased to solar cell in welding process
Caused by stress, split so as to further reduce the hidden of solar cell.
Brief description of the drawings
Fig. 1 is the structural representation of the ultralight flexible crystalline silicon solar cell modules of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the backing material in the ultralight flexible crystalline silicon solar cell modules of the embodiment of the present invention 1
Figure.
Label declaration in figure：
1st, cephacoria；2nd, solar cell；3rd, packaging plastic；4th, backing material；5th, caudacoria.
Embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
Limit the scope of the invention.
Embodiment 1：
A kind of ultralight flexible crystalline silicon solar cell modules, as shown in figure 1, including cephacoria 1, solar cell 2, backing material
4, packaging plastic 3 and caudacoria 5, cephacoria 1, solar cell 2, backing material 4, packaging plastic 3 and caudacoria 5 press cephacoria 1, packaging plastic 3, the sun
Battery 2, packaging plastic 3, the order arrangement of backing material 4 and caudacoria 5 simultaneously form ultralight flexible crystalline silicon sun electricity through vacuum hotpressing
Pond component.
In the present embodiment, packaging plastic 3 is PUR, surface density 30g/m2。
In the present embodiment, PUR 3 is 60 μm of polyolefin.
In the present embodiment, caudacoria 5 is 25 μm of white PET film.
In the present embodiment, cephacoria 1 is 25 μm of ETFE films Jing Guo sided corona treatment.
In the present embodiment, backing material 4 for the carbon fiber once hot-forming composition of 200 μ m thicks matrix pattern carbon fiber
Rack, as shown in Figure 2.
In the present embodiment, solar cell 2 is 4 strings, often the single crystal silicon solar cell piece of string 10 welds in series
Form, the size of solar cell piece is 80 mm × 40mm, and thickness is 150 μm.
A kind of preparation method of above-mentioned ultralight flexible crystalline silicon solar cell modules, comprises the following steps：By cephacoria 1,
Solar cell 2, backing material 4, packaging plastic 3 and caudacoria 5 according to from top to bottom be cephacoria 1, packaging plastic 3, solar cell 2, encapsulation
The order lamination of glue 3, backing material 4 and caudacoria 5, first at 90 DEG C, pressure is not added with, keeps 1min, be then 138 in temperature
DEG C, pressure be 20Kpa vacuum condition under, solidify 40min, ultralight flexible crystalline silicon solar cell modules are obtained, such as Fig. 1 institutes
Show.
Ultralight flexible crystalline silicon solar cell modules surface density manufactured in the present embodiment is in 400g/m2Within, bending radius
Less than 0.5m, component conversion efficiency reaches 16%.The component has stronger toughness, is not in the failure phenomenon such as fracture, to too
Positive electricity pond, which serves, to be effectively protected.And the ultralight flexible crystalline silicon solar cell modules that such a structure and technique are made are anti-aging
Performance is strong, still intact under 85 DEG C, 85% humidity environment after aging in 1000 hours, backing material does not occur and the feelings such as comes off
Condition.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of ultralight flexible crystalline silicon solar cell modules, including cephacoria, solar cell and backing material, it is characterised in that
Also include packaging plastic and caudacoria, the cephacoria, solar cell, backing material, packaging plastic and caudacoria are by cephacoria, packaging plastic, the sun
Battery, packaging plastic, backing material and caudacoria order arrangement and form ultralight flexible crystal-silicon solar cell group through vacuum hotpressing
Part；
The backing material is the fiber rack of carbon fiber or the hot-forming composition of glass fibre primary, the thickness of the backing material
Degree≤0.08mm；
The caudacoria is white PET film, and the thickness of the caudacoria is 20 μm~30 μm；
The solar cell is that multiple solar cell pieces are welded in series or in parallel, and the solar cell piece is single
Crystal silicon solar battery or polycrystalline silicon solar cell；
The thickness of the solar cell piece is 50 μm~150 μm；
The ultralight flexible crystalline silicon solar cell modules surface density is in 400g/m2Within, bending radius is less than 0.5m.
2. ultralight flexible crystalline silicon solar cell modules according to claim 1, it is characterised in that the packaging plastic is heat
Melten gel, the surface density of the PUR is 10 g/m2~50g/m2。
3. ultralight flexible crystalline silicon solar cell modules according to claim 2, it is characterised in that the PUR is poly-
Alkene.
4. the ultralight flexible crystalline silicon solar cell modules according to any one of claims 1 to 3, it is characterised in that described
Cephacoria is ETFE films or PET film, and the thickness of the cephacoria is 20 μm~40 μm.
5. ultralight flexible crystalline silicon solar cell modules according to claim 4, it is characterised in that the cephacoria is by electricity
Dizzy processing.
6. a kind of preparation method of ultralight flexible crystalline silicon solar cell modules as described in any one of Claims 1 to 5, it is special
Sign is, comprises the following steps：By cephacoria, solar cell, backing material, packaging plastic according to from top to bottom be cephacoria, packaging plastic,
Solar cell, packaging plastic, the order lamination of backing material and caudacoria, first at a temperature of 80 DEG C~100 DEG C, keep 1 min~
3min, then under the vacuum condition that temperature is 100 DEG C~150 DEG C, pressure is 15Kpa~30Kpa, solidification 30min~
60min, obtain ultralight flexible crystalline silicon solar cell modules.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109638108A (en) * | 2018-12-05 | 2019-04-16 | 上海空间电源研究所 | Stratosphere flight device is directed to the assembly encapsulation method of warpage flexible solar cell piece |
| WO2019224458A1 (en) * | 2018-05-22 | 2019-11-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Lightweight and flexible photovoltaic module comprising a front layer consisting of a polymer and a rear layer consisting of a composite material |
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| CN106299002B (en) * | 2016-09-14 | 2017-07-14 | 中国电子科技集团公司第四十八研究所 | Flexible solar cell component and its preparation method and application |
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