CN111261785A - Perovskite solar cell module and packaging method thereof - Google Patents

Perovskite solar cell module and packaging method thereof Download PDF

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Publication number
CN111261785A
CN111261785A CN202010225787.7A CN202010225787A CN111261785A CN 111261785 A CN111261785 A CN 111261785A CN 202010225787 A CN202010225787 A CN 202010225787A CN 111261785 A CN111261785 A CN 111261785A
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solar cell
perovskite solar
cell module
packaging
layer
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Inventor
杨松旺
陈薪羽
寿春晖
陈宗琦
金胜利
黄绵吉
沈曲
郑渭建
赵金龙
孙树忠
陈春峰
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Shanghai Institute of Ceramics of CAS
Zhejiang Energy Group Research Institute Co Ltd
Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Shanghai Institute of Ceramics of CAS
Zhejiang Energy Group Research Institute Co Ltd
Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Priority to CN202010225787.7A priority Critical patent/CN111261785A/en
Publication of CN111261785A publication Critical patent/CN111261785A/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/80—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/80—Constructional details
    • H10K30/88—Passivation; Containers; Encapsulations
    • 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
    • Y02E10/549—Organic PV cells

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Abstract

The invention provides a perovskite solar cell module and a packaging method thereof, wherein the cell module comprises: a bottom substrate; a plurality of series-parallel connected perovskite solar cell modules arranged in a matrix on the bottom substrate; the periphery packaging adhesive is arranged around each perovskite solar cell module; and the transparent substrate covers the perovskite solar cell modules, and a transparent conducting layer in sealing connection with the peripheral packaging glue is formed on the lower surface of the transparent substrate, so that each perovskite solar cell module is sealed in a packaging space defined by the bottom substrate, the transparent substrate and the peripheral packaging glue. The positive and negative connecting terminals of each battery are arranged outside the packaging adhesive on four sides of each battery, so that series-parallel connection between adjacent batteries is realized, and independent packaging of each battery is realized, so that the packaging effect of a single battery can be enhanced, the overall packaging effect is good, and the single battery can be replaced independently when in failure.

Description

Perovskite solar cell module and packaging method thereof
Technical Field
The invention relates to the technical field of photovoltaics, in particular to a perovskite solar cell module and a packaging method thereof.
Background
Since the invention in 2009, perovskite solar cells are widely concerned by researchers and industries in the solar power generation technical field around the world based on the advantages of abundant element earth reserves, simple preparation process, high conversion efficiency and the like, so that the perovskite solar cells are expected to realize a core technology of cheap solar power generation, and fully reflect good commercial prospects and great potential market values of the perovskite solar cells. However, the stability and device size scaling of perovskite solar cells have been key challenges that limit their high efficiency commercial applications. At present, the preparation technology of the large-size perovskite battery has made substantial progress, however, in order to further prepare the large-size perovskite battery assembly, adjust the voltage and the output power thereof, and be capable of being connected to a photovoltaic inverter to realize the power generation output and being connected to a power grid, the perovskite battery units are required to be connected in series and in parallel and further packaged.
The packaging technology of the perovskite solar cell module is similar to that of the traditional photovoltaic module, namely the perovskite solar cell modules which are arranged in a matrix in series or in parallel are arranged in a sandwich structure between an upper cover plate and a lower cover plate (usually two pieces of glass or glass and a back film), a filling adhesive film (generally 6-10 layers and 3-6 mm in thickness) with the thickness being almost the same as that of a cell piece is filled around the cell piece between the upper base plate and the lower base plate, and the perovskite solar cell module is bonded with the upper cover plate and the lower cover plate in a laminating, heating and curing mode through a bonding layer filling material; in addition, because base plate glass size is greater than battery FTO glass size about the sandwich structure, consequently need additionally to fill the glued membrane all around and compensate thickness, in order to guarantee certain water-blocking effect, the width (the distance of base plate and battery piece edge about being promptly) of packing the glued membrane is the better more wide, and this width has 5~10cm usually. For example, patent document 1 provides a photovoltaic module based on perovskite solar cells and a method for encapsulating the same, in which a plurality of perovskite solar cell modules are connected to upper and lower cover plates via adhesive layers and filler layers, thereby encapsulating and protecting the perovskite solar cell modules. The structure is characterized in that a plurality of perovskite solar cell modules connected in series and parallel are integrally packaged, so that the requirement on the water blocking effect of a packaging material is very high, and the perovskite solar cell unit modules usually comprise transparent substrate base plates, and the cells have certain thickness, so that components of the packaging structure usually need thicker and wider filling layer materials to achieve the ideal water blocking effect and filling effect; in addition, the perovskite solar cell modules connected in series and parallel in the structure are packaged between the upper cover plate and the lower cover plate as a whole, and if one of the cells is damaged, the cell is difficult to replace, so that the power generation performance of the whole assembly is affected.
Prior art documents:
patent document 1: 201810703852.5.
disclosure of Invention
The invention aims to provide a perovskite solar cell module and a packaging method thereof. The single perovskite battery module in the perovskite solar battery component can be conveniently replaced, so that the problem that the power generation performance of the whole component is affected if the single perovskite battery module is damaged in the use process is solved, in addition, only one substrate is arranged at the bottom of the perovskite solar battery component, glue films do not need to be additionally filled around the perovskite solar battery component, and the thickness of the battery without the glass substrate is only micron-sized, so that only 1 filling layer (with the thickness of 0.4-0.6 mm) needs to be arranged between the battery piece and the substrate, the problem that a thicker and wider filling layer material is needed in the existing component structure is solved, and a better water blocking effect is achieved. In addition, the invention also provides a packaging method of the perovskite solar cell module, which can effectively reduce the attenuation of the photoelectric conversion performance of the perovskite cell in the packaging process.
The present invention provides a perovskite solar cell module comprising:
a bottom substrate;
a plurality of series-parallel connected perovskite solar cell modules arranged in a matrix on the bottom substrate;
the periphery packaging adhesive is arranged around each perovskite solar cell module; and
and the transparent substrate covers the perovskite solar cell modules, and a transparent conducting layer in sealing connection with the peripheral packaging glue is formed on the lower surface of the transparent substrate, so that each perovskite solar cell module is sealed in a packaging space defined by the bottom substrate, the transparent substrate and the peripheral packaging glue.
The positive and negative connecting terminals of each battery are arranged outside the four-side packaging adhesive of each battery, so that series-parallel connection between adjacent batteries is realized, and independent packaging of each battery is realized, so that the packaging effect of a single battery can be enhanced, the overall packaging effect is better than that of a sandwich structure formed by sealing all batteries between an upper substrate and a lower substrate, and the batteries can be independently replaced when in failure.
Further, the present invention also includes a filler layer disposed between the base substrate and the perovskite solar cell module. In the packaging process, the filling layer has the function of bonding the transparent substrate and the battery module together, so that the packaging effect is ensured, and the filling layer also has a certain protection function after the packaging is finished.
Furthermore, gaps of 2 mm-5 mm are formed between the filling layer and the peripheral packaging adhesive, and the height difference between the bottom of the filling layer and the bottom of the peripheral packaging adhesive is 0.1 mm-0.3 mm. Therefore, the filling layer can be prevented from overflowing from the packaging glue to influence the packaging effect.
Furthermore, the invention also comprises a conductive grid line distributed on the lower surface of the transparent conductive layer; two total electrodes arranged on the transparent conductive layer and connected with the conductive grid line; and a connection lead connected to a corresponding total electrode of each of the perovskite solar cell modules. Thereby, the perovskite solar cell modules are electrically connected, and the conductivity is improved.
Further, a plurality of the perovskite solar cell modules are connected in series and in parallel through the connection wire. Thereby forming an overall battery assembly.
Furthermore, the invention also comprises a through hole for the connecting lead to pass through is arranged on the bottom substrate. Thereby facilitating the connection of the connection lead out to a junction box or a load or the like.
Further, the perovskite solar cell module comprises a hole blocking layer, an electron transmission layer, a perovskite light absorption layer, a hole transmission layer and a counter electrode layer which are sequentially arranged from bottom to top.
The invention also provides a packaging method of the perovskite solar cell module, which comprises the following steps:
the method comprises the following steps: stacking the bottom substrate, the peripheral packaging adhesive and the perovskite solar cell module in sequence from bottom to top to obtain a stacked cell;
step two: heating a heating plate of a laminating machine, putting the stacked battery into the heating plate of the laminating machine, and vacuumizing, pressurizing and laminating the stacked battery through the heating plate of the laminating machine to obtain a packaged battery;
step three: the packaged battery is removed from the laminator heating plate and cooled.
Further, the perovskite solar cell module is made of materials decomposed at about 85 ℃, and the temperature of heating plates of a laminating machine is set to be 80-110 ℃; or the perovskite solar cell module is made of a material decomposed at about 150 ℃, and the temperature of the heating plate of the laminating machine is set to be 110-160 ℃. The invention adopts a lamination process for packaging, and sets different lamination temperature parameters aiming at perovskite materials with different thermal stabilities, thereby ensuring that the performance of the battery after lamination is not influenced.
Further setting the vacuumizing time of the heating plate of the laminating machine to be 3-6 min; the laminating time of the heating plate of the laminating machine is set to be 8 min-15 min, and the pressure is set to be 30 kPa-100 kPa. Under the parameter, the filling layer can completely fill the gap between the battery module and the bottom substrate, and is firmly combined with the substrate, so that the phenomena of air bubbles, delamination and the like can not occur, and an ideal packaging effect is realized.
Compared with the prior art, the invention has the following technical effects:
(1) according to the perovskite solar cell module, a single perovskite cell module is convenient to replace, so that the problem that the power generation performance of the whole module is affected if the single perovskite cell module is damaged in the using process is solved;
(2) the perovskite battery component solves the problem that a thicker and wider filling layer material is needed in the existing component structure, and further the structural packaging component has a better water-blocking effect.
Drawings
Fig. 1 is a cross-sectional view of a perovskite solar cell module in example 1;
FIG. 2 is an exploded view of the perovskite solar cell module, transparent substrate and transparent conductive layer of FIG. 1;
FIG. 3 is a top view of the perovskite solar cell module of example 1;
FIG. 4 is a partial top view of the perovskite solar cell module of example 1;
FIG. 5 is a cross-sectional view of a perovskite solar cell module in example 2;
FIG. 6 is an exploded view of the perovskite solar cell module, transparent substrate and transparent conductive layer of FIG. 5;
FIG. 7 is a top view of a perovskite solar cell module in example 2;
FIG. 8 is a partial top view of a perovskite solar cell module of example 2;
FIG. 9 shows the irradiance of 50W/m for the perovskite solar cell assembly before and after encapsulation in example 32J-V curves under LED light sources;
reference numerals:
1. a bottom substrate;
2. a filling layer;
3a, a transparent substrate;
3b, a transparent conductive layer;
3c, a hole blocking layer;
3d, an electron transport layer;
3e, a perovskite layer;
3f, a hole transport layer;
3g, a counter electrode layer;
4. packaging glue at the periphery;
5. a conductive bus line and a lead-out terminal;
6. connecting a lead;
7. and a through hole.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation. The dimensions in the figures are for ease of viewing only and are not to scale with actual dimensions.
As shown in fig. 1 to 8, the perovskite solar cell module includes a base substrate 1; a plurality of series-parallel connected perovskite solar cell modules arranged in a matrix on the bottom substrate 1; a filling layer 2 filled between the base substrate 1 and the perovskite solar cell module; the periphery packaging adhesive 4 is arranged on the upper surface of the bottom substrate 1 and is arranged in a circle along the edges of each perovskite solar cell module and the filling layer 2; the transparent conducting layers 3b correspond to the perovskite solar cell modules one by one, cover the corresponding perovskite solar cell modules and the peripheral packaging glue 4 and are in sealing connection with the upper surfaces of the peripheral packaging glue 4; a transparent substrate 3a formed on the transparent conductive layer 3 b; the total electrodes 5 connected to the two sides of the lower surface of the transparent conductive layer 3b are arranged outside the packaging space, namely, arranged on one side of the peripheral packaging glue 4 far away from the perovskite solar cell module, because the widths of the transparent substrate 3a and the transparent conductive layer 3b are larger than the widths of the corresponding peripheral packaging glue 4, and the plurality of total electrodes 5 are connected by the connecting wires 6 so as to enable the plurality of perovskite solar cell modules to be connected in series and parallel.
The single perovskite solar cell module of this structure independently encapsulates, compare with the scheme of current encapsulating a plurality of perovskite solar cell modules in the lump, on the one hand, because filling layer 2 need not to fill the clearance that covers between the perovskite solar cell module, can reduce filling layer 2's use amount, on the other hand, can also improve the effect of blocking water, when one of them perovskite solar cell module leaks and breaks down, only need to change this perovskite solar cell module that breaks down, and encapsulate again can, and need not to change and encapsulate again whole perovskite solar cell module. In addition, according to the actual requirement of a rear-end access system, series-parallel connection can be realized through connecting wires between the perovskite solar cell modules arranged in the matrix, and the required voltage and output power can be obtained.
Wherein, the filling layer 2 is arranged in the packaging space and fills the gap between the bottom substrate and the perovskite solar cell module, thereby providing support for the perovskite solar cell module. In the packaging process, the filling layer has the function of bonding the transparent substrate and the battery module together, so that the packaging effect is ensured, and the filling layer also has a certain protection function after the packaging is finished. The material of the filling layer 2 is polyethylene octene co-elastomer, ethylene-vinyl acetate copolymer, polyvinyl butyral and/or organic silicon resin; the thickness of the packaging adhesive 4 around is larger than that of the filling layer 2, a gap of 2-5 mm is formed between the filling layer 2 and the packaging adhesive 4 around, and the height difference between the bottom of the filling layer 2 and the bottom of the packaging adhesive 4 around is 0.1-0.3 mm, so that the filling layer can be prevented from overflowing from the packaging adhesive to influence the packaging effect. The width of the packaging adhesive is 3-10 mm, and the packaging adhesive is made of butyl rubber, silica gel, thermoplastic polymer material, ultraviolet curing adhesive or AB component adhesive.
The lower surface of the transparent conducting layer 3b is distributed with conducting grid lines and total electrodes 5 connected with the conducting grid lines, a pair of the total electrodes 5 are distributed on two sides of the corresponding perovskite solar cell modules, and the total electrodes 5 are connected by connecting wires 6 among the plurality of perovskite solar cell modules, so that series-parallel connection of the perovskite solar cell modules is realized. In this embodiment, total electrode 5 is located the outside in encapsulation space, prevents that the setting of total electrode from influencing the leakproofness of encapsulation glue 4 all around, promotes the effect of blocking water. The main electrode 5 comprises a main grid line distributed on two sides of the transparent conducting layer 3b and an extraction terminal connected to the middle of the main grid line, the main grid line is connected with the conducting grid line and used for collecting electrons on the conducting grid line, and the extraction terminal is used for being connected with the connecting wire 6. The conductive grid line and the total grid line are made of metal respectively, and the material comprises at least one of gold, silver, copper or aluminum. The width of the conductive grid line is 0.01-0.5 mm, the thickness of the conductive grid line is 0.1-30 mu m, the conductive grid line is at least 10 mu m away from the edge of the perovskite solar cell module, and the conductive grid line is 1-2 mm away from the outer edge of the peripheral packaging adhesive 4. The total grid line width is 0.02-1 mm, and the thickness is 0.1-30 μm. The width of the leading-out terminal is 2-6 mm, the length is 5-10 mm, and the thickness is 0.1-30 μm. The leading-out terminal is adjacently connected with the total grid line and is 5-12 mm away from the edge of the perovskite solar cell module.
The perovskite solar cell modules arranged in the matrix are connected with leading-out terminals of the adjacent perovskite solar cell modules through connecting wires 6, so that the series-parallel connection of the adjacent perovskite solar cell modules is realized. Specifically, the positive and negative electrodes of a single battery module are respectively led out by being connected with the lead-out terminal 5 through the connecting lead 6, and are connected in series or in parallel with the positive and negative electrodes of the adjacent perovskite solar battery modules. And, the bottom base plate 1 is equipped with the through-hole 7, the through-hole 7 is located outside of the encapsulated space, thus need not to seal the through-hole separately, the connecting wire 6 draws the total positive and negative poles of the assembly after connecting in series and in parallel, the connecting wire 6 is worn out and forms the link of this perovskite solar module from the through-hole 7 back that is left on the bottom base plate, in order to connect to terminal box or load, etc.. The connecting wire 6 is a metal wire, a conductive tape or a metal foil, and has a width of 0.5-10 mm. The bottom substrate 1 is made of ultra-white glass, toughened glass, a metal substrate or a fluorine-containing flexible substrate.
As shown in fig. 1 or fig. 5, the perovskite solar cell module includes a plurality of unit cells connected in series and parallel, each unit cell including a hole blocking layer 3c, an electron transport layer 3d located above the hole blocking layer 3c, a perovskite light absorbing layer 3e located above the electron transport layer 3d, a hole transport layer 3f located above the perovskite light absorbing layer 3e, and a counter electrode layer 3g located above the hole transport layer 3f, wherein the counter electrode layer 3g also covers one side of the unit cell. When series connection is required between the unit cells, the series connection may be implemented by providing an etch line on the transparent conductive layer 3b to separate adjacent unit cells, and providing the unit cells in such a manner that the counter electrode layer 3g at the side of the unit cells crosses the etch line. For the parallel unit cells, the anode and cathode layers of the adjacent unit cells are separated by etching lines, so that the parallel connection of a plurality of unit cells is realized. The perovskite light absorbing layer material may be MAPbI3、FAPbI3、MAxFA(1-x)PbI3(0≤x≤1)、CsPbI3、CsPbIxBr3-x(0≤x≤3)、CsPbBr3、Csx(MAyFA1-y)(1-x)PbIZBr3-Z(0≤x≤1，0≤y≤1，0≤z≤3)、(PEA)2(MA)n-1PbnX3n+1(X = I/Br, n.gtoreq.1).
Specifically, when manufacturing a perovskite solar cell module, as shown in fig. 1 to 8, a plurality of perovskite solar cell modules are laid on a bottom substrate 1 of the module in a matrix arrangement manner, a filling layer 2 is filled between the perovskite solar cell modules and the bottom substrate 1, a transparent substrate 3a with a transparent conductive layer 3b is covered on the perovskite solar cell modules, and the periphery of the perovskite solar cell modules is sealed by a peripheral sealing adhesive 4.
The packaging method of the perovskite solar cell module comprises the following specific steps:
the method comprises the following steps: sequentially stacking a bottom substrate 1, a filling layer 2, peripheral packaging glue 4, and perovskite solar cell modules and transparent substrates (the perovskite solar cell modules and the transparent substrates are integrated) which are arranged in a matrix from bottom to top; the periphery packaging adhesive is positioned at the periphery of the single perovskite solar cell module and the filling layer 2; the perovskite solar cell modules are connected in series and parallel through connecting wires;
step two: heating a hot plate of a laminating machine, putting the stacked perovskite solar cell module into the hot plate of the laminating machine, wherein the whole laminating process is divided into three stages, namely a vacuumizing stage, a pressurizing stage and a laminating stage;
step three: after the three stages of lamination are completed, the encapsulated perovskite solar cell module is removed and cooled.
Wherein the temperature range of a hot plate of a laminating machine is set to be 50-180 ℃, particularly, different laminating temperatures are selected for different perovskite material systems, and materials with poor thermal stability, specifically MAPbI, decomposed at about 85 DEG C3、FAPbI3、MAxFA(1-x)PbI3The laminating temperature is preferably 80-110 ℃; for materials with good thermal stability which decompose at around 150 ℃, in particular CsPbI3、CsPbIxBr3-x、CsPbBr3、Csx(MAyFA1-y)(1-x)PbIZBr3-Z、(PEA)2(MA)n-1PbnI3n+1The laminating temperature of materials such as (X = I, Br) is preferably 110-160 ℃; the vacuumizing time range is 2-10 min, the pressurizing time range is 5-15 s, and the laminating time range is 5-30 min.
Further, vacuumizing for 3-6 min, and laminating for 8-15 min; the laminating pressure is 30 to 100 kPa.
Example 1
As shown in fig. 1 to 3, the present embodiment relates to a parallel perovskite solar cell module. The specific implementation steps comprise:
perovskite solar cell modules arranged in 2 rows and 4 columns are laid above tempered glass (bottom substrate 1). A transparent substrate 3a having a transparent conductive layer 3b formed on the lower surface thereof is provided on the perovskite solar cell module. A single perovskite solar cell module comprises, from top to bottom: a hole blocking layer 3c, an electron transport layer 3d, a perovskite light absorption layer 3e, a hole transport layer 3f, and a counter electrode layer 3 g; wherein, the transparent conducting layer 3b is provided with a total electrode 5 which is used as a positive and negative leading-out terminal of a single perovskite battery module. A filling layer 2 is laid between each single perovskite solar cell module and the bottom substrate 1, and a peripheral packaging adhesive 4 is laid around each single perovskite solar cell module. The total electrode 5 is arranged outside the peripheral packaging adhesive 4. When each perovskite solar cell module is placed, the directions of the positive electrode and the negative electrode are respectively the left side as the negative electrode and the right side as the positive electrode.
Connecting and leading out the anode and the cathode of the laid perovskite solar electric module by using a conductive copper adhesive tape (connecting wire 6), and connecting perovskite solar cell arrays in parallel according to the mode of figure 3; after parallel connection, the anode and the cathode are respectively gathered at one end of the toughened glass, and the anode lead and the cathode lead respectively penetrate out of the through holes 7 reserved on the toughened glass to the back of the toughened glass.
Putting the perovskite solar cell component into a laminating machine, setting the temperature range of a hot plate of the laminating machine to be 50-180 ℃, particularly, selecting different laminating temperatures for different perovskite material systems, and selecting different laminating temperatures for MAPbI3、FAPbI3、MAxFA(1-x)PbI3The laminating temperature of the material with poor thermal stability is preferably 80-110 ℃; for CsPbI3、CsPbIxBr3-x、CsPbBr3、Csx(MAyFA1-y)(1-x)PbIZBr3-Z、(PEA)2(MA)n-1PbnI3n+1(X = I, Br) and the like, and the lamination temperature is preferably set110-160 ℃; the vacuumizing time range is 2-10 min, the pressurizing time range is 5-15 s, and the laminating time range is 5-30 min. Preferably, the vacuumizing time is 3-6 min, and the laminating time is 8-15 min; the laminating pressure is 30 to 100 kPa.
Example 2
As shown in fig. 5 to 8, the present embodiment relates to a tandem perovskite solar cell module. The specific implementation steps comprise:
when the perovskite solar cell modules in the first row are placed, the anode and cathode directions are both the left side as a cathode and the right side as an anode; when the perovskite solar cell module in the second row is placed, the directions of the anode and the cathode are both the left side as the anode and the right side as the cathode.
Connecting and leading out the anode and the cathode of the laid perovskite solar electric module by using a conductive copper adhesive tape (connecting wire 6), and connecting the perovskite solar cell arrays in series according to the mode of figure 7; after the series connection, the anode and the cathode are respectively gathered at one end of the toughened glass, and the anode and cathode leads respectively penetrate out of the through holes 7 reserved on the toughened glass to the back of the toughened glass.
The rest steps are the same as those in embodiment 1, and are not described herein.
Example 3
MAPbI3Packaging of perovskite solar cell Module, wherein the perovskite solar cell Module comprises a plurality of unit cells, each unit cell comprising an FTO layer (transparent conductive layer 3 b), a hole blocking layer 3c, an electron transport layer 3d, a MAPbI3A perovskite light-absorbing layer (perovskite light-absorbing layer 3 e), a hole transport layer 3f, a carbon counter electrode layer (counter electrode layer 3 g), wherein MAPbI3The perovskite layer is arranged between the electron transport layer and the carbon counter electrode layer; the FTO layers of the adjacent unit cells are separated by etching lines, and the counter electrode layer crosses the etching lines and is connected with the FTO layers of the adjacent unit cells, so that the series connection of 8 unit cells is realized.
The perovskite solar cell modules arranged in 2 rows and 2 columns are laid above tempered glass (bottom substrate 1). A single perovskite solar cell module comprises 8 unit cells which are connected in series, and the positive electrode and the negative electrode are led out through a total electrode 5. A filling layer 2 is laid between each single perovskite solar cell module and the bottom substrate 1, and a peripheral packaging adhesive 4 is laid around each single perovskite solar cell module. The total electrode 5 is arranged outside the peripheral packaging adhesive 4. When each perovskite solar cell module is placed, the directions of the anode and the cathode are respectively the left side as the cathode and the right side as the anode.
Connecting and leading out the anode and the cathode of the laid perovskite solar electric module by using a conductive copper adhesive tape (connecting wire 6), and connecting perovskite solar cell arrays in parallel according to the mode of figure 3; after parallel connection, the anode and the cathode are respectively gathered at one end of the toughened glass, and the anode lead and the cathode lead respectively penetrate out of the through holes 7 reserved on the toughened glass to the back of the toughened glass.
The well-connected and unpackaged perovskite battery assembly is tested for its J-V curve and photoelectric conversion parameters under an LED light source, wherein the irradiance of the LED light source is 20000 lux.
Putting the well placed perovskite solar cell component into a laminating machine, setting the temperature of the laminating machine to be 95 ℃, vacuumizing for 5min, pressurizing for 10s, laminating for 10min, and the laminating pressure to be 100kPa, taking out the component after the lamination is finished, and testing the J-V curve and the photoelectric conversion parameter of the component under an LED light source after cooling, wherein the light intensity of the LED light source is 50W/m2。
TABLE 1 perovskite solar cell modules at 50W/m before and after lamination encapsulation2Photoelectric conversion parameters measured under an LED light source. Fig. 9 is a graph plotted from this parameter. It can be seen that the efficiency and the total output power of the perovskite solar cell module are slightly improved before and after lamination packaging.
TABLE 1 perovskite solar cell module before and after lamination packaging under LED light source (50W/m)2) Photoelectric conversion parameter of
Figure DEST_PATH_IMAGE001
Wherein Voc is an open-circuit voltage, Jsc is a short-circuit current, FF is a fill factor, Eff is a photoelectric conversion efficiency, and Pmax is a maximum power.
The perovskite battery component prepared by adopting the single-substrate structure packaging and the set lamination parameters in the embodiments 1-3 has the advantages that the performance of the packaged component is not influenced but also improved, and the battery with the structure is light and convenient and has good anti-moisture-oxygen effect.

Claims (10)

1. A perovskite solar cell assembly, comprising:
a bottom substrate;
a plurality of series-parallel perovskite solar cell modules arranged in a matrix on the bottom substrate
The periphery packaging adhesive is arranged around each perovskite solar cell module; and
and the transparent substrate covers the perovskite solar cell modules, and a transparent conducting layer in sealing connection with the peripheral packaging glue is formed on the lower surface of the transparent substrate, so that each perovskite solar cell module is sealed in a packaging space defined by the bottom substrate, the transparent substrate and the peripheral packaging glue.
2. The perovskite solar cell assembly of claim 1, further comprising a filler layer disposed between the base substrate and the perovskite solar cell module.
3. The perovskite solar cell module as claimed in claim 2, wherein a gap of 2 mm-5 mm is formed between the filling layer and the peripheral packaging adhesive, and the height difference between the bottom of the filling layer and the bottom of the peripheral packaging adhesive is 0.1 mm-0.3 mm.
4. The perovskite solar cell assembly as claimed in claim 1, further comprising conductive grid lines distributed on the lower surface of the transparent conductive layer; two total electrodes arranged on the transparent conductive layer and connected with the conductive grid line; and a connection lead connected to a corresponding total electrode of each of the perovskite solar cell modules.
5. The perovskite solar cell assembly as claimed in claim 4, wherein a plurality of the perovskite solar cell modules are connected in series and in parallel by the connection lead.
6. The perovskite solar cell assembly as claimed in claim 4, further comprising a through hole provided on the base substrate for the connection lead to pass through.
7. The perovskite solar cell assembly of claim 1, wherein the perovskite solar cell module comprises a hole blocking layer, an electron transport layer, a perovskite light absorbing layer, a hole transport layer and a counter electrode layer arranged in this order from bottom to top.
8. A method of encapsulating a perovskite solar cell module, comprising:
the method comprises the following steps: stacking the bottom substrate, the perovskite solar cell module, the peripheral packaging adhesive and the transparent substrate in sequence from bottom to top to obtain a stacked cell;
step two: heating a heating plate of a laminating machine, putting the stacked battery into the heating plate of the laminating machine, and vacuumizing, pressurizing and laminating the stacked battery through the heating plate of the laminating machine to obtain a packaged battery;
step three: the packaged battery is removed from the laminator heating plate and cooled.
9. The method of encapsulating a perovskite solar cell module as claimed in claim 8,
the perovskite solar cell module is made of materials decomposed at about 85 ℃, and the temperature of heating plates of the laminating machine is set to be 80-110 ℃;
or the perovskite solar cell module is made of a material decomposed at about 150 ℃, and the temperature of the heating plate of the laminating machine is set to be 110-160 ℃.
10. The method for encapsulating a perovskite solar cell module according to claim 8 or 9, wherein a vacuum time of the laminator heating plate is set to 3 to 6 min; the laminating time of the heating plate of the laminating machine is set to be 8 min-15 min, and the pressure is set to be 30 kPa-100 kPa.
CN202010225787.7A 2020-03-26 2020-03-26 Perovskite solar cell module and packaging method thereof Pending CN111261785A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112670417A (en) * 2020-12-22 2021-04-16 常州亚玛顿股份有限公司 Packaging structure and packaging method of series perovskite battery assembly
WO2021251048A1 (en) * 2020-06-11 2021-12-16 パナソニックＩｐマネジメント株式会社 Solar cell module
CN115513384A (en) * 2022-09-28 2022-12-23 深圳黑晶光电技术有限公司 Perovskite/crystalline silicon laminated solar cell packaging method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021251048A1 (en) * 2020-06-11 2021-12-16 パナソニックＩｐマネジメント株式会社 Solar cell module
CN112670417A (en) * 2020-12-22 2021-04-16 常州亚玛顿股份有限公司 Packaging structure and packaging method of series perovskite battery assembly
CN115513384A (en) * 2022-09-28 2022-12-23 深圳黑晶光电技术有限公司 Perovskite/crystalline silicon laminated solar cell packaging method

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