Perovskite cell packaging method, perovskite cell packaging structure and perovskite solar thin film cell assembly

Abstract

The invention relates to the technical field of solar cells, and particularly discloses a perovskite cell packaging method, a perovskite cell packaging structure and a perovskite solar thin film cell module. The invention discloses a perovskite cell packaging method. The method comprises the following steps: S1, carrying out first P4 laser scribing and edge cleaning on a perovskite cell core structure; s2, depositing a water vapor barrier layer on the perovskite cell core structure for first packaging, and after packaging is completed, performing laser scribing; s3, carrying out secondary laser scribing and edge cleaning; and step S4, covering the water vapor barrier layer with an adhesive film for second packaging, and after packaging is completed, covering back plate glass to obtain the perovskite battery assembly. The invention provides a packaging method of a perovskite cell, which can enable the perovskite cell to have a multi-layer packaging structure, effectively improves the sealing performance of the edge of the cell, and solves the problem that the stability of the cell is reduced due to the fact that an existing perovskite cell is easy to be invaded by water and oxygen due to poor sealing performance of the edge.

Description

Technical Field

[0001] The present application relates to the technical field of solar cells, and in particular to a perovskite cell packaging method, a packaging structure and a perovskite solar thin-film cell assembly. Background Art

[0002] The biggest technical challenge facing perovskite solar cells is the stability of the materials and their sensitivity to water and oxygen. Water and oxygen intrusion can cause corrosion to battery chips, battery core components, electrical connectors, etc., resulting in damage to battery functions and a significant reduction in component performance. In particular, EVA film will decompose and produce acetic acid when exposed to water vapor, lowering the pH value and increasing the surface corrosion rate of the battery and solder strips in the component.

[0003] At present, although the packaging method of double-glass modules has successfully blocked moisture between the front panel and the back panel, the gap between the back panel glass and the ultra-white glass has become the main channel for water and oxygen intrusion. Even if the back of the battery cell is affixed with a film and laminated, it is difficult to ensure the long-term stability of the battery module.

[0004] Therefore, it is imperative to develop a new solar thin-film cell encapsulation method to improve the long-term stability of perovskite solar cells. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a perovskite cell packaging method, a packaging structure and a perovskite solar thin-film cell assembly, which can effectively improve the sealing of the cell edge by adopting a multi-layer packaging process, and is used to solve the problem that the edges of existing perovskite cell assemblies are easily invaded by water and oxygen, resulting in reduced cell stability.

[0006] In order to achieve the above technical objectives, the present application provides a perovskite battery packaging method, including a perovskite battery core structure, and the packaging steps are as follows:

[0007] Step S1, performing the first laser scribing and edge cleaning on the core structure of the perovskite battery;

[0008] Step S2, depositing a water vapor barrier layer on the core structure of the perovskite cell for the first packaging, and after the packaging is completed, laser scribing is performed;

[0009] Step S3, performing a second laser scribing and edge cleaning;

[0010] Step S4, covering the moisture barrier layer with an adhesive film for secondary packaging, and after the packaging is completed, covering the back panel glass.

[0011] Furthermore, the moisture barrier layer includes one or more layers of a SiN layer, an OC film layer, and a SiO2 layer.

[0012] Furthermore, the water vapor barrier layer includes a SiN layer, an OC film layer, and a SiO2 layer.

[0013] Furthermore, the thickness of the SiN layer is 100-200 nm; the thickness of the OC film layer is 300-800 nm; and the thickness of the SiO2 layer is 20-50 nm.

[0014] Furthermore, the water vapor barrier layer is prepared by deposition using PECVD, and the temperature during the deposition process is less than 160°C.

[0015] Furthermore, in step S1, the distance of the first P4 laser scribing and edge cleaning is 5-20 mm.

[0016] Furthermore, the distance of the first P4 laser scribing and edge cleaning is greater than the distance of the second P4 laser scribing and edge cleaning to maintain the integrity of the moisture barrier layer.

[0017] Furthermore, the core structure of the perovskite battery comprises an ultra-white glass 1, a TCO layer 2, a hole transport layer 3, a perovskite layer 4, an electron transport layer 5, and a metal back electrode layer 6 which are arranged in sequence, and the packaging steps are as follows: Step S1, performing the first P4 laser scribing and edge cleaning on the core structure of the perovskite battery, from the metal back electrode layer 6 to the TCO layer 2 until the ultra-white glass 1 is exposed; Step S2, depositing a water vapor barrier layer 7 on the core structure of the perovskite battery for the first packaging, and after the packaging is completed, performing the second P4 laser scribing and edge cleaning; Step S3, covering the water vapor barrier layer 7 with a glue film 8 for the second packaging, and after the packaging is completed, covering the back panel glass 9 to obtain a perovskite battery assembly.

[0018] Secondly, the present application also provides a packaging structure, which is prepared by the above-mentioned perovskite battery packaging method.

[0019] Furthermore, the invention comprises an ultra-white glass 1, a TCO layer 2, a hole transport layer 3, a perovskite layer 4, an electron transport layer 5, a metal back electrode layer 6, a water vapor barrier layer 7, a film 8, and an ultra-white glass 1, wherein the TCO layer 2 is covered on the ultra-white glass 1, and the TCO layer 2 has a first groove, which separates the TCO layer 2 into a plurality of sub-conductive layers; the hole transport layer 3 is covered on the TCO layer 2 and completely fills the first groove between the TCO layers 2; the perovskite layer 4 and the electron transport layer 5 are covered on the hole transport layer 1 in sequence; The hole transport layer 3 is formed on the perovskite layer 4, and the electron transport layer 5 is divided into independent core blocks by a second groove; the metal back electrode layer 6 covers the electron transport layer 5 and completely fills the second groove between the core blocks; the water vapor barrier layer 7 covers the metal back electrode layer 6 and the edge parts of each layer, and the hole transport layer 3, the perovskite layer 4, the electron transport layer 5 and the metal back electrode layer 6 are divided into sub-cells connected in series by a third groove; the adhesive film 8 covers the water vapor barrier layer 7 and completely fills the third groove.

[0020] In summary, the present application provides a perovskite battery packaging method, which is as follows: step S1, the core structure of the perovskite battery is subjected to the first P4 laser scribing and edge cleaning; step S2, a water vapor barrier layer 7 is deposited on the core structure of the perovskite battery for the first packaging, and after the packaging is completed, laser scribing is performed; step S3, a second laser scribing and edge cleaning is performed; step S4, a film 8 is covered on the water vapor barrier layer 7 for the second packaging, and after the packaging is completed, the back plate glass 9 is covered to obtain a perovskite battery assembly. The perovskite battery packaging method provided by the present solution has a simple process and is convenient for industrial implementation; at the same time, the packaging structure prepared by the above process can effectively seal the edge of the perovskite battery, isolate the perovskite battery from the contact with moisture and oxygen in the air, effectively improve the sealing of the edge of the perovskite battery assembly, and effectively protect the core structure of the perovskite battery from water and oxygen. Compared with the prior art, the packaging structure prepared by the packaging process of the present application solution has stronger sealing, can effectively prevent water and oxygen invasion, and improve battery stability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application 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, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of a perovskite battery packaging method provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the change in photoelectric conversion efficiency of the perovskite battery assembly provided in the embodiments and comparative examples of the present application;

[0024] Figure numerals: 1. Ultra-white glass; 2. TCO layer; 3. Hole transport layer; 4. Perovskite layer; 5. Electron transport layer; 6. Metal back electrode layer; 7. Water vapor barrier layer; 8. Adhesive film; 9. Back panel glass. DETAILED DESCRIPTION

[0025] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0026] The sources of all raw materials in the present invention are not particularly limited and can be purchased from the market or prepared according to conventional methods known to those skilled in the art.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] See also Figure 1 The embodiment of the present invention provides a perovskite battery packaging method, and the specific steps are as follows:

[0030] Step S1, depositing a TCO layer 2 on the ultra-white glass 1, and using a P1 laser to etch the TCO layer 2 until the ultra-white glass 1 is exposed, so that a plurality of independent conductive blocks are formed on the ultra-white glass 1, and a first scribed groove is provided between the plurality of independent conductive blocks;

[0031] Step S2, depositing a hole transport layer 3, a perovskite layer 4, and an electron transport layer 5 on the TCO layer 2 and the first scribed grooves in sequence, performing P2 laser scribing, scribing from the electron transport layer 5 to the hole transport layer 3 until the TCO layer 2 is exposed, so that a plurality of mutually independent core blocks are formed on the TCO layer 2, and a second scribed groove is provided between the plurality of mutually independent core blocks;

[0032] Step S3, depositing a metal back electrode layer 6 on the electron transport layer 5 and the second scribed groove to form a perovskite core component.

[0033] Step S4, performing the first P4 laser scribing and edge cleaning on the core structure of the perovskite battery;

[0034] Step S5, depositing a water vapor barrier layer 7 on the core structure of the perovskite battery for the first packaging. After the packaging is completed, P3 laser scribing is performed to form a series connection between the batteries and provide a third scribing groove;

[0035] Step S6, performing a second P4 laser scribing and edge cleaning;

[0036] Step S7, covering the water vapor barrier layer 7 and the third scored groove with a glue film 8 for secondary packaging, and after the packaging is completed, covering the back plate glass 9 to obtain a perovskite battery assembly.

[0037] It should be noted that, in step S1, the core structure of the perovskite battery is subjected to the first P4 laser scribing and edge cleaning, which is mainly used to clean the edge of the core structure of the perovskite battery to prevent edge leakage; in step S2, the packaged water vapor barrier layer 7 is subjected to the second P4 laser scribing and edge cleaning, which is used to remove excess irregular parts of the edge of the water vapor barrier layer 7 to ensure that the insulating film can fit tightly on the edge of the battery to form a good insulating layer.

[0038] Specifically, in some embodiments, the TCO layer 2 is formed by depositing ITO or FTO by PVD; the hole transport layer 3 is formed by depositing NiO x Or PTAA or P3HT is deposited by PVD; the perovskite layer 4 is selected from CH3 NH3 PbBr3, CH3 NH3PbI3, CH3 NH3 PbI2 Cl, CH3 NH3 Pb(I 1~x Br x )3, wherein 0≤x≤1, and the manufacturing method is slit coating; the electron transport layer 5 is deposited by SnO2 or ZnO or TiO2 or fullerene and its derivatives by RPD or EVA; the back metal back electrode layer 6 is deposited by ITO or Al or Cu by PVD; and the power of P1, P2, and P3 laser scribing is 0.3~1.5W, and the pulse width is 100~300ns.

[0039] More specifically, in some embodiments, the ultra-white glass 1 is tempered glass with a thickness of 3 mm; the thickness of the TCO layer 2 is 400~600 nm, the thickness of the hole transport layer 3 is 20~50 nm, the thickness of the perovskite layer 4 is 500~700 nm, the thickness of the electron transport layer 5 is 20~60 nm, the thickness of the metal back electrode layer 6 is 30~50 nm, and the thickness of the water vapor barrier layer 7 is 500~1000 nm; the adhesive film 8 is one of POE or EVA, and has a thickness of 0.3~0.6 mm.

[0040] Specifically, in some embodiments, the power of P4 laser scribing is 500-1000W, and the pulse width is 50-200ns.

[0041] In some embodiments, the moisture barrier layer 7 includes one or more layers of a SiN layer, an OC film layer, and a SiO 2 layer.

[0042] In some embodiments, the moisture barrier layer 7 includes a SiN layer, an OC film layer, and a SiO2 layer.

[0043] Preferably, the thickness of the SiN layer is 100-200 nm; the thickness of the OC film layer is 300-800 nm; and the thickness of the SiO2 layer is 20-50 nm.

[0044] It should be noted that the SiN material has a dense structure and can form an effective physical barrier to prevent the penetration of water and oxygen molecules; the OC film layer has good adhesion and can be tightly combined with the SiN material and the SiO2 layer to form a uniform and continuous film layer to avoid gaps or peeling, thereby ensuring that water and oxygen cannot penetrate into the battery through the joint of the water vapor barrier layer 7, ensuring the effect of isolating water and oxygen; SiO2 is a good electrical insulating material that can provide good electrical insulation protection while isolating water and oxygen, preventing problems such as leakage or short circuit caused by water and oxygen intrusion. In addition, the SiN layer, OC film layer, and SiO2 layer all have stable chemical properties, are not easily corroded or destroyed by chemical reactions with water and oxygen, and can maintain stable barrier properties for a long time, ensuring that water and oxygen can be effectively isolated under various environmental conditions. In addition, by reasonably setting the thickness of the SiN layer, OC film layer, and SiO2 layer, the amount of material used can be reduced and costs can be saved while ensuring that the packaging structure has good barrier properties.

[0045] In some embodiments, the water vapor barrier layer 7 is deposited by PECVD, and the temperature during the deposition process is less than 160°C.

[0046] It should be noted that a lower deposition temperature can prevent deformation, degradation or performance changes of the substrate material due to high temperature during the preparation process; compared with traditional high-temperature deposition methods, it can also significantly reduce production costs.

[0047] In some embodiments, in step S1, the distance of the first laser scribing and edge cleaning is 5-20 mm.

[0048] It should be noted that if the edge cleaning distance is too large, the battery near the edge may be excessively removed, resulting in an increase in the dead zone area of ​​the battery and a reduction in the battery conversion efficiency; if the edge cleaning distance is too small, the safety and stability of the battery cannot be ensured. The edge cleaning distance provided in this application helps to reduce the dead zone area of ​​the battery while improving the safety and stability of the battery.

[0049] In some embodiments, the distance of the first laser scribing and edge cleaning is greater than the distance of the second laser scribing and edge cleaning to maintain the integrity of the moisture barrier layer 7 .

[0050] It should be noted that the first laser scribing is used to clean the edge of the battery to prevent leakage at the edge; the second laser scribing is to remove the excess irregular parts of the edge of the water vapor barrier layer 7 to ensure that the insulating glue can fit tightly on the edge of the battery to form a good insulating layer. Therefore, the distance of the second laser scribing needs to be smaller than the distance of the first laser scribing to prevent the edge of the core structure of the perovskite battery from being exposed due to the second laser scribing distance being too wide, thereby destroying the first layer of packaging structure.

[0051] Secondly, the present application also provides a packaging structure of a perovskite battery, which is prepared by a perovskite battery packaging method.

[0052] In some embodiments, the packaging structure includes an ultra-white glass 1, a TCO layer 2, a hole transport layer 3, a perovskite layer 4, an electron transport layer 5, a metal back electrode layer 6, a water vapor barrier layer 7, a film 8, and a back plate glass 9, which are arranged in sequence; wherein the TCO layer 2 is covered on the ultra-white glass 1, and the TCO layer 2 has a first groove, which separates the TCO layer 2 into a plurality of sub-conductive layers; the hole transport layer 3 is covered on the TCO layer 2 and completely fills the first groove between the TCO layers 2; the perovskite layer 4 and the electron transport layer 5 are covered in sequence. On the hole transport layer 3, there is a second groove that divides the hole transport layer 3, the perovskite layer 4, and the electron transport layer 5 into independent core blocks; the metal back electrode layer 6 covers the electron transport layer 5 and completely fills the second groove between the core blocks; the water vapor barrier layer 7 covers the metal back electrode layer 6 and the edge parts of each layer, and there is a third groove that divides the hole transport layer 3, the perovskite layer 4, the electron transport layer 5 and the metal back electrode layer 6 into sub-cells connected in series; the adhesive film 8 covers the water vapor barrier layer 7 and completely fills the third groove.

[0053] The applicant further provides the following reference specific embodiments to describe the present invention. It should be noted that these embodiments are merely illustrative and do not limit the present invention in any way.

[0054] Example 1

[0055] This embodiment provides a perovskite battery packaging method, and the specific steps are as follows:

[0056] Step S1, depositing ITO on the ultra-white glass 1 by PVD to form a TCO layer 2, and etching the TCO layer 2 by P1 laser scribing until the ultra-white glass 1 is exposed, so that a plurality of independent conductive blocks are formed on the ultra-white glass 1, and a first scribed groove is formed between the plurality of independent conductive blocks;

[0057] Step S2, sequentially depositing a hole transport layer 3, a perovskite layer 4, and an electron transport layer 5 on the TCO layer 2 and the first scribed groove, performing P2 laser scribing, scribing from the electron transport layer 5 to the hole transport layer 3 until the TCO layer 2 is exposed, so that a plurality of mutually independent core blocks are formed on the TCO layer 2, and a second scribed groove is provided between the plurality of mutually independent core blocks; wherein the hole transport layer 3 is made of NiO x The perovskite layer 4 is formed by slit coating of CH3 NH3 PbBr3; the electron transport layer 5 is formed by SnO2 deposited by RPD;

[0058] Step S3, depositing ITO on the electron transport layer 5 and the second scribed groove by PVD to form a metal back electrode layer 6, thereby obtaining a core structure of a perovskite battery;

[0059] Step S4, P4 laser scribing and edge cleaning of the core structure of the perovskite battery, from the metal back electrode layer 6 to the ultra-white glass 1, with a cleaning distance of 10 mm;

[0060] Step S5, depositing a water vapor barrier layer 7 on the metal back electrode layer 6 and the edge of the core structure of the perovskite battery for the first packaging. After the packaging is completed, P3 laser scribing is performed from the water vapor barrier layer 7 to the hole transport layer 3, so that the batteries are connected in series and a third scribing groove is formed;

[0061] Step S6, perform P4 laser scribing and edge cleaning, from the water vapor barrier layer 7 to the ultra-clear glass 1, and the edge cleaning distance is 9.5 mm;

[0062] Step S7, depositing an adhesive film 8 on the moisture barrier layer 7 and the third scored groove for second packaging. After the packaging is completed, the back plate glass 9 is covered and then laminated.

[0063] In the above steps, the power of P1, P2, and P3 laser scribing is 0.3 W, and the pulse width is 100 ns; the power of P4 laser scribing is 500 W, and the pulse width is 50 ns.

[0064] Water oxygen performance test:

[0065] The perovskite battery module produced by the above packaging method is placed in a hot and humid environment test box, the temperature of the hot and humid environment test box is set to 25~30℃, the humidity is set to 80%RH, and the photoelectric conversion efficiency of the perovskite battery module is tracked and tested regularly.

[0066] Comparative Example 1

[0067] This embodiment provides a perovskite battery packaging method, which is different from the embodiment 1 in that only one packaging is performed, and the specific packaging is as follows:

[0068] Step S1, depositing a TCO layer 2 on the ultra-white glass 1, and using a P1 laser to etch the TCO layer 2 until the ultra-white glass 1 is exposed, so that a plurality of independent conductive blocks are formed on the ultra-white glass 1, and a first scribed groove is provided between the plurality of independent conductive blocks;

[0069] Step S2, depositing a hole transport layer 3, a perovskite layer 4, and an electron transport layer 5 on the TCO layer 2 and the first scribed grooves in sequence, performing P2 laser scribing, scribing from the electron transport layer 5 to the hole transport layer 3 until the TCO layer 2 is exposed, so that a plurality of mutually independent core blocks are formed on the TCO layer 2, and a second scribed groove is provided between the plurality of mutually independent core blocks;

[0070] Step S3, depositing a metal back electrode layer 6 on the electron transport layer 5 and the second scribed groove to form a perovskite core component;

[0071] Step S4, P4 laser scribing and edge cleaning of the core structure of the perovskite battery, from the metal back electrode layer 6 to the ultra-white glass 1, with a cleaning distance of 10 mm;

[0072] Step S5, performing P3 laser scribing from the metal back electrode layer 6 to the hole transport layer 3, so that the batteries are connected in series and a third scribing groove is formed;

[0073] Step S6, depositing an adhesive film 8 on the metal back electrode layer 6 and the third scribed groove for the first packaging. After the packaging is completed, the back plate glass 9 is covered and then laminated.

[0074] The test results of the above embodiments are shown in Table 1.

[0075] Table 1

[0076]

[0077] According to Table 1 and Figure 2 It can be seen from the experimental data that Example 1 uses the two-layer packaging method provided by the present application to encapsulate the core components of the perovskite battery, and obtains a perovskite battery component with double-layer packaging, which is placed in a hot and humid environment test box with a temperature of 25~30°C and a humidity of 80%RH. After 2500h, the light conversion efficiency can still be maintained at more than 95%. Comparative Example 1 only uses a film to encapsulate the core components of the perovskite battery in one layer, and places the obtained perovskite battery component in a hot and humid environment test box. After 600h, the conversion efficiency has decayed by more than 20%. It can be seen that the double-layer packaging process provided by the present application has the ability to efficiently encapsulate the core components of the perovskite battery, and can effectively block the intrusion of water and oxygen in the air, thereby improving the stability and effectiveness of the battery. In addition, the packaging method provided by the present application has the characteristics of simple process and is easy to implement in industrial production.

[0078] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A perovskite battery packaging method, comprising a perovskite battery core structure, characterized in that: The following steps are involved: Step S1, performing the first laser scribing and edge cleaning on the core structure of the perovskite battery; Step S2, depositing a water vapor barrier layer on the core structure of the perovskite cell for the first packaging, and after the packaging is completed, laser scribing is performed; Step S3, performing a second laser scribing and edge cleaning; Step S4, covering the moisture barrier layer with an adhesive film for secondary packaging, and after the packaging is completed, covering the back panel glass.

2. The perovskite battery packaging method according to claim 1, characterized in that: The water vapor barrier layer includes one or more layers of a SiN layer, an OC film layer, and a SiO2 layer.

3. The perovskite battery packaging method according to claim 1, characterized in that: The water vapor barrier layer includes a SiN layer, an OC film layer, and a SiO2 layer.

4. The perovskite battery packaging method according to claim 3, characterized in that: The thickness of the SiN layer is 100-200 nm; the thickness of the OC film layer is 300-800 nm; and the thickness of the SiO2 layer is 20-50 nm.

5. The perovskite battery packaging method according to claim 1, characterized in that: The water vapor barrier layer is prepared by PECVD deposition, and the temperature during the deposition process is less than 160°C.

6. The perovskite battery packaging method according to claim 1, characterized in that: In step S1, the distance of the first P4 laser scribing and edge cleaning is 5-20 mm.

7. The perovskite battery packaging method according to claim 1, characterized in that: The distance of the first P4 laser scribing and edge cleaning is greater than the distance of the second P4 laser scribing and edge cleaning to maintain the integrity of the water vapor barrier layer.

8. The perovskite battery packaging method according to claim 1, characterized in that: The core structure of the perovskite battery comprises ultra-white glass (1), a TCO layer (2), a hole transport layer (3), a perovskite layer (4), an electron transport layer (5), and a metal back electrode layer (6) which are arranged in sequence, and the steps are as follows: Step S1, performing a first P4 laser scribing and edge cleaning on the core structure of the perovskite cell, from the metal back electrode layer (6) to the TCO layer (2) until the ultra-white glass (1) is exposed; Step S2, depositing a water vapor barrier layer (7) on the core structure of the perovskite battery for the first packaging, and after the packaging is completed, performing a second P4 laser scribing and edge cleaning; Step S3, covering the water vapor barrier layer (7) with an adhesive film (8) for secondary packaging, and after the packaging is completed, covering the back panel glass (9) to obtain a perovskite battery assembly.

9. A packaging structure of a perovskite battery, characterized in that: The perovskite battery packaging method according to any one of claims 1 to 8 is produced, comprising ultra-white glass (1), a TCO layer (2), a hole transport layer (3), a perovskite layer (4), an electron transport layer (5), a metal back electrode layer (6), a water vapor barrier layer (7), an adhesive film (8), and a back plate glass (9) arranged in sequence; in, The TCO layer (2) covers the ultra-white glass (1), and the TCO layer (2) has a first groove for dividing the TCO layer (2) into a plurality of sub-conductive layers; The hole transport layer (3) covers the TCO layer (2) and completely fills the first groove between the TCO layers (2); The perovskite layer (4) and the electron transport layer (5) are sequentially covered on the hole transport layer (3), and a second groove is provided to divide the hole transport layer (3), the perovskite layer (4), and the electron transport layer (5) into mutually independent core blocks; The metal back electrode layer (6) covers the electron transport layer (5) and completely fills the second scribed grooves between the core blocks; The water vapor barrier layer (7) covers the metal back electrode layer (6) and the edge portions of each layer, and a third groove is provided to divide the hole transport layer (3), the perovskite layer (4), the electron transport layer (5) and the metal back electrode layer (6) into sub-cells connected in series; The adhesive film (8) covers the water vapor barrier layer (7) and completely fills the third scored groove.

10. A perovskite solar thin film battery assembly, characterized in that: A packaging structure comprising the perovskite battery as described in claim 9.

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