Novel packaging structure of perovskite solar cell module

Abstract

The utility model belongs to the technical field of perovskite cells, and relates to a novel packaging structure of a solar cell module, in particular to a novel packaging structure of a perovskite solar cell module. According to the utility model, when the sintered glass is used for packaging, the packaging glue and the drying agent are combined for packaging at the same time, so that the water vapor blocking capability is enhanced, the bonding area of the glass cover plate and the substrate is increased, the residual stress in the packaging structure is reduced, and the packaging structure is prevented from being bent or broken. The packaging structure provided by the utility model not only promotes the sealing performance of the perovskite solar cell module, but also can provide high mechanical strength due to the small gap of the packaging structure, and can be suitable for packaging n-i-p type and p-i-n type perovskite solar cell modules at the same time; in addition, the structure has the advantages of being simple, easy to manufacture, high in operability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of perovskite batteries, relates to a packaging structure of a solar cell module, and specifically relates to a novel packaging structure of a perovskite solar cell module. Background Art

[0002] Among the third-generation solar cell technologies, perovskite solar cells have attracted widespread attention due to their low cost and high efficiency. On the road to the industrialization of perovskite solar cells, the stability of perovskite solar cell devices has always been an issue that cannot be ignored.

[0003] When perovskite solar cells are used, the materials used to make them decompose to varying degrees, especially in high humidity, high temperature, and oxygen-rich environments. Therefore, how to improve the stability of perovskite solar cell devices has become an urgent problem to be solved.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a new packaging structure for a perovskite solar cell assembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel packaging structure of a perovskite solar cell module comprises a substrate and a glass cover plate arranged opposite to the substrate, wherein the perovskite solar cell module is arranged between the substrate and the glass cover plate;

[0008] The perovskite solar cell module is provided with a desiccant filling area, a packaging glue filling area and fritted glass in the circumference and from the inside to the outside. The packaging glue filling area is filled with packaging glue for bonding the substrate and the glass cover plate, and cooperates with the fritted glass to achieve sealed packaging of the desiccant filling area and the perovskite solar cell module.

[0009] Specifically, the distance between the desiccant filling area and the packaging glue filling area is 50-1000 μm.

[0010] Specifically, the distance between the desiccant filling area and the perovskite solar cell assembly is 0 to 1000 μm.

[0011] Specifically, the projection of the fritted glass in the vertical direction is the same as the projection of the substrate in the vertical direction and the projection of the glass cover in the vertical direction.

[0012] Specifically, the desiccant filling area is filled with a liquid desiccant, and the liquid desiccant includes a solid desiccant and a solvent; the solid desiccant includes one or more of zeolite, molecular sieve, silica gel, calcium chloride, calcium oxide, calcium carbonate and activated carbon; the solvent includes silicone oil; and the viscosity of the liquid desiccant is less than 1000 mPa·s.

[0013] Specifically, the distance between the packaging glue filling area and the fritted glass is 50 to 1000 μm.

[0014] Specifically, the fritted glass has a thickness of 10 to 300 μm and a width of 50 to 1000 μm.

[0015] Specifically, the frit glass is formed by melting glass paste, and the frit glass can be melted by irradiation of infrared laser.

[0016] Specifically, the fritted glass is connected to the substrate by screen printing or dispensing.

[0017] Specifically, the substrate may include flexible and non-flexible substrates; preferably, the substrate may be a layer of glass or a relatively thick polymer material such as PMMA (polymethyl methacrylate) or PC (polycarbonate); alternatively, the substrate may be a flexible polymer film, such as a film of PET (polyethylene terephthalate), PEN (polyethylene naphthalate), PC (polycarbonate), polyimide, PEEK (polyetheretherketone), etc.

[0018] Specifically, the perovskite solar cell assembly includes a transparent conductive layer, a first carrier transport layer, a perovskite absorption layer, a second carrier transport layer and a top electrode stacked in sequence from bottom to top, and the bottom surface of the transparent conductive layer is connected to the top surface of the substrate.

[0019] Specifically, the transparent conductive layer is an ITO conductive layer or a FTO conductive layer.

[0020] Specifically, the material of the first carrier transport layer or the second carrier transport layer is not particularly limited, and may be a material or a combination thereof known to those skilled in the art, for example, may be selected from one of nickel oxide, Spiro-OMeTAD, tin dioxide and PCBM.

[0021] Specifically, the material of the top electrode is not particularly limited, and may be a material known to those skilled in the art or a combination thereof, for example, may be selected from Au or Ag.

[0022] Compared with the prior art, the technical solution provided by the utility model includes the following beneficial effects: when the utility model adopts sintered glass for packaging, the packaging glue and desiccant are combined for packaging at the same time, which not only enhances the ability to block water vapor, but also increases the bonding area of ​​the glass cover plate and the substrate, reduces the residual stress inside the packaging structure, and avoids the bending or breaking of the packaging structure. The packaging structure of the utility model not only promotes the sealing of the perovskite solar cell module; at the same time, due to the small gap in the packaging structure, it can provide higher mechanical strength and can be applied to the packaging of nip-type and pin-type perovskite solar cell modules. In addition, the packaging structure also has the characteristics of simple structure, easy production, and strong operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0026] Figure 2 It is a cross-sectional schematic diagram of the perovskite solar cell module of the present utility model.

[0027] Among them: 1 is a substrate; 2 is sintered glass; 3 is a packaging glue filling area; 4 is a desiccant filling area; 5 is a perovskite solar cell module; 5-1 is a transparent conductive layer; 5-2 is a first carrier transport layer; 5-3 is a perovskite absorption layer; 5-4 is a second carrier transport layer; 5-5 is a top electrode; 6 is a glass cover. DETAILED DESCRIPTION

[0028] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Instead, they are only examples consistent with some aspects of the present utility model as detailed in the attached claims.

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1

[0031] This embodiment provides a novel packaging structure of a perovskite solar cell module, comprising a substrate 1, a glass cover plate 6 arranged opposite to the substrate 1, and a perovskite solar cell module 5 arranged between the substrate 1 and the glass cover plate 6;

[0032] The perovskite solar cell module 5 is provided with a desiccant filling area 4, a sealing glue filling area 3 and a fritted glass 2 in the circumferential direction and from the inside to the outside. The sealing glue filling area 3 is filled with a sealing glue for bonding the substrate 1 and the glass cover 6, and cooperates with the fritted glass 2 to achieve a sealed package of the desiccant filling area 4 and the perovskite solar cell module 5, see Figure 1 shown.

[0033] Specifically, the distance between the desiccant filling area 4 and the packaging glue filling area 3 is 50-1000 μm.

[0034] Specifically, the spacing between the desiccant filling area 4 and the perovskite solar cell assembly 5 is 0 to 1000 μm; it should be noted that the spacing between the desiccant filling area 4 and the perovskite solar cell assembly 5 can be adaptively prepared according to actual packaging requirements, and the optional spacings are 0, 60 μm, 100 μm, 200 μm, 500 μm, 750 μm, 1000 μm, etc., which are not listed one by one.

[0035] Specifically, the projection of the fritted glass 2 in the vertical direction is the same as the projection of the substrate 1 in the vertical direction and the projection of the glass cover plate 6 in the vertical direction.

[0036] Specifically, the desiccant filling area 4 is filled with liquid desiccant.

[0037] Specifically, the spacing between the packaging glue filling area 3 and the fritted glass 2 is 50 to 1000 μm. It should be noted that the spacing between the packaging glue filling area 3 and the fritted glass 2 can be adaptively prepared according to actual packaging requirements, and the optional spacing is 50 μm, 80 μm, 200 μm, 600 μm, 850 μm, 900 μm, 1000 μm, etc., which are not listed one by one.

[0038] Specifically, the thickness of the fused glass 2 is 10 to 300 μm, and the width is 50 to 1000 μm; it should be noted that the thickness of the fused glass can be adaptively prepared according to actual packaging requirements, and the optional thickness is 10 μm, 60 μm, 80 μm, 110 μm, 160 μm, 250 μm, 300 μm, etc., which are not listed one by one; the width of the fused glass can be adaptively prepared according to actual packaging requirements, and the optional width is 50 μm, 80 μm, 200 μm, 600 μm, 850 μm, 900 μm, 1000 μm, etc., which are not listed one by one.

[0039] Specifically, the fritted glass 2 is connected to the substrate 1 by screen printing or dispensing.

[0040] Specifically, the perovskite solar cell assembly 5 includes a transparent conductive layer 5-1, a first carrier transport layer 5-2, a perovskite absorption layer 5-3, a second carrier transport layer 5-4 and a top electrode 5-5 stacked in sequence from bottom to top, and the bottom surface of the transparent conductive layer 5-1 is connected to the top surface of the substrate 1.

[0041] Specifically, the transparent conductive layer 5 - 1 is an ITO conductive layer or a FTO conductive layer.

[0042] Specifically, the material of the first carrier transport layer 5 - 2 or the second carrier transport layer 5 - 4 is one of nickel oxide, Spiro-OMeTAD, tin dioxide and PCBM.

[0043] Specifically, the top electrode 5 - 5 is made of Au or Ag.

[0044] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0045] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A novel packaging structure of a perovskite solar cell module, characterized in that: It comprises a substrate (1) and a glass cover plate (6) arranged opposite to the substrate (1), wherein a perovskite solar cell assembly (5) is arranged between the substrate (1) and the glass cover plate (6); The perovskite solar cell module (5) is provided with a desiccant filling area (4), a sealing glue filling area (3) and a fritted glass (2) in the circumference and from the inside to the outside. The sealing glue filling area (3) is filled with a sealing glue for bonding the substrate (1) and the glass cover (6), and cooperates with the fritted glass (2) to achieve a sealed package of the desiccant filling area (4) and the perovskite solar cell module (5).

2. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The distance between the desiccant filling area (4) and the packaging glue filling area (3) is 50 to 1000 μm.

3. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The distance between the desiccant filling area (4) and the perovskite solar cell assembly (5) is 0 to 1000 μm.

4. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The projection of the fritted glass (2) in the vertical direction is the same as the projection of the substrate (1) in the vertical direction and the projection of the glass cover plate (6) in the vertical direction.

5. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The desiccant filling area (4) is filled with liquid desiccant.

6. The novel packaging structure of the perovskite solar cell module according to claim 5, characterized in that: The liquid desiccant comprises a solid desiccant and a solvent.

7. The novel packaging structure of the perovskite solar cell module according to claim 6, characterized in that: The solid desiccant includes one of zeolite, molecular sieve, silica gel, calcium chloride, calcium oxide, calcium carbonate and activated carbon; and the solvent includes silicone oil.

8. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The distance between the packaging glue filling area (3) and the fritted glass (2) is 50 to 1000 μm.

9. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The thickness of the fused glass (2) is 10 to 300 μm, and the width is 50 to 1000 μm.

10. The novel packaging structure of the perovskite solar cell module according to claim 1, characterized in that: The fritted glass (2) is connected to the substrate (1) by screen printing or dispensing.

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