Perovskite solar cell and cell packaging system

Abstract

The utility model provides a kind of perovskite solar cell and cell packaging system.Perovskite solar cell includes front cover plate glass, first encapsulation adhesive film, perovskite battery module, second encapsulation adhesive film and rear cover plate glass.Perovskite battery module includes multiple perovskite battery pieces, and each perovskite battery piece is arranged and laid on the side of first encapsulation adhesive film away from front cover plate glass.By decoupling single-piece large-size perovskite battery piece into multiple modular small-size perovskite battery pieces, the area of substrate in single perovskite battery piece is less than or equal to 0.1m 2 , perovskite layer coating and functional layer deposition crystallization are completed on small-area substrate, and then uniformity of perovskite layer thickness and optimization of grain boundary defect density of functional layer are realized by using small-area film forming characteristics, so that the uniformity and consistency of each perovskite battery piece are increased, and the efficiency of perovskite solar cell is improved.

Description

Technical Field

[0001] This utility model relates to the field of solar cells, and in particular to a perovskite solar cell and a cell packaging system. Background Technology

[0002] Perovskite solar cells have advantages such as solution-processability, low cost, and high theoretical efficiency, making them a key development direction for next-generation solar cells. However, in practical applications, perovskite solar cells suffer from problems such as uneven coating thickness of the perovskite layer and inconsistent crystallinity of the functional layer, leading to a decrease in efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a perovskite solar cell and its encapsulation system to address the problems of uneven coating thickness of the perovskite layer and inconsistent crystallinity of the functional layer in existing perovskite solar cells, which lead to reduced efficiency.

[0004] The technical solution is as follows:

[0005] On the one hand, a perovskite solar cell is provided, comprising:

[0006] Front hood glass;

[0007] The first encapsulating film is laid on the front cover glass;

[0008] A perovskite solar cell module includes multiple perovskite solar cells, each of which is arranged and laid on the side of the first encapsulating film away from the front cover glass. Each perovskite solar cell includes a substrate, a perovskite layer coated on the substrate, and a functional layer deposited on the substrate. The area of ​​the substrate is less than or equal to 0.1 m². 2 ;

[0009] The second encapsulating film is laid on the perovskite battery module;

[0010] The rear cover glass is placed on the second encapsulating film.

[0011] The perovskite solar cells in the above embodiments decouple a monolithic large-size perovskite cell into multiple modular small-size perovskite cells, with the substrate area of ​​a single perovskite cell being less than or equal to 0.1 m². 2 The coating of the perovskite layer and the deposition and crystallization of the functional layer are both completed on a small area substrate. By utilizing the small area film formation characteristics, the uniformity of the perovskite layer thickness and the optimization of the grain boundary defect density of the functional layer are achieved, thereby increasing the uniformity and consistency of each perovskite cell and improving the efficiency of the perovskite solar cell.

[0012] The technical solution will be further explained below:

[0013] In one embodiment, the length and width of the perovskite solar cell are both in the range of 100 mm to 300 mm.

[0014] In one embodiment, the deviation between the photoelectric conversion efficiency of the perovskite solar cell and a set photoelectric conversion efficiency is less than or equal to a set value, wherein the set value ranges from 0.2% to 1%.

[0015] In one embodiment, the first encapsulating film is configured as a UV-converting EVA film or a UV-converting POE film, and the mass of the first encapsulating film is greater than or equal to 400 g / m³. 2 ;

[0016] And / or, the second encapsulating film is configured as a UV-blocking film.

[0017] In one embodiment, the length of the front cover glass is the same as the length of the rear cover glass, the width of the front cover glass is the same as the width of the rear cover glass, and the thickness of the front cover glass and the rear cover glass both range from 2 mm to 2.5 mm.

[0018] In one embodiment, the perovskite solar cell module further includes multiple conductive adhesive components, each of which is used to electrically connect two adjacent perovskite solar cells.

[0019] In one embodiment, the perovskite solar cell further includes an edge sealing tape extending circumferentially along the front cover glass, the edge sealing tape being located between the edge of the front cover glass and the edge of the rear cover glass, and used to seal the gap between the front cover glass and the rear cover glass.

[0020] In one embodiment, the width of the sealing tape ranges from 8mm to 12mm;

[0021] And / or, the water vapor permeability of the sealing tape is less than or equal to 0.1 g / (m²·day).

[0022] On the other hand, a battery encapsulation system is provided for obtaining the perovskite solar cell, wherein the front cover glass, the first encapsulating film, the perovskite battery module, the second encapsulating film, and the rear cover glass are stacked sequentially to form a battery assembly. The battery encapsulation system includes an edge sealing device and a laminator. The edge sealing device is used to perform edge sealing treatment on the battery assembly, and the laminator is used to perform vacuum treatment and lamination treatment on the battery assembly.

[0023] In one embodiment, the vacuuming time of the laminator when performing vacuuming on the battery assembly is 2 to 5 minutes; the lamination time of the laminator when performing lamination on the battery assembly is 10 to 20 minutes; and the lamination temperature of the laminator when performing lamination on the battery assembly is 120°C to 160°C. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a perovskite solar cell according to one embodiment.

[0027] Figure 2 This is a schematic diagram of the structure of a perovskite solar cell according to another embodiment.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Perovskite solar cell; 100. Front cover glass; 200. First encapsulation film; 300. Perovskite cell module; 310. Perovskite cell; 400. Second encapsulation film; 500. Back cover glass; 600. Edge sealing tape. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] To address the issue of efficiency degradation in perovskite solar cells during practical use, the inventors conducted research and analysis, discovering that existing perovskite solar cells utilize monolithic large-size perovskite cells (area ≥ 1m²). 2Although large-size perovskite solar cells are more suitable for practical applications, they also have more drawbacks. For example, uneven coating thickness of the perovskite layer and inconsistent crystallinity of the functional layers can affect performance and lead to decreased efficiency.

[0032] Based on this, the following embodiments of the perovskite solar cell 10 and cell packaging system of this application are proposed to solve the above-mentioned technical problems.

[0033] like Figure 1 and Figure 2 As shown, in one embodiment, a perovskite solar cell 10 is provided, including a front cover glass 100, a first encapsulating film 200, a perovskite cell module 300, a second encapsulating film 400, and a rear cover glass 500. The first encapsulating film 200 is deposited on the front cover glass 100. The perovskite cell module 300 includes multiple perovskite cells 310, each arranged and deposited on the side of the first encapsulating film 200 away from the front cover glass 100. Each perovskite cell 310 includes a substrate, a perovskite layer coated on the substrate, and a functional layer deposited on the substrate. The area of ​​the substrate is less than or equal to 0.1 m². 2 The length and width of each perovskite solar cell 310 range from 100 mm to 300 mm. A second encapsulating film 400 is laid on the perovskite solar cell module 300. A rear cover glass 500 is placed on the second encapsulating film 400.

[0034] The perovskite solar cell 10 in the above embodiments decouples a monolithic large-size perovskite solar cell into multiple modular small-size perovskite solar cells 310, wherein the substrate area of ​​a single perovskite solar cell 310 is less than or equal to 0.1m². 2 The coating of the perovskite layer and the deposition and crystallization of the functional layer are both completed on a small area substrate. By utilizing the small area film formation characteristics, the uniformity of the perovskite layer thickness and the optimization of the grain boundary defect density of the functional layer are achieved, thereby increasing the uniformity and consistency of each perovskite cell 310 and improving the efficiency of the perovskite solar cell 10.

[0035] It should be noted that the substrate refers to the bottom plate of the perovskite solar cell 310, which serves as the basic support. The area of ​​the substrate is less than or equal to 0.1 m². 2 This refers to a base whose front and / or back area is less than or equal to 0.1m². 2 .

[0036] Optionally, the length and width of the perovskite solar cell 310 range from 100 mm to 300 mm. This allows the perovskite solar cell 310 to be compatible with existing semiconductor and battery manufacturing equipment, facilitating packaging and integration and reducing the production cost of the perovskite solar cell 310.

[0037] Specifically, in this embodiment, the minimum size of the perovskite solar cell 310 is 100mm*100mm. The maximum size of the perovskite solar cell 310 is 300mm*300mm. Each perovskite solar cell 310 is arranged in a rectangular array between the first encapsulation film 200 and the second encapsulation film 400, and is clamped and fixed by the front cover glass 100 and the rear cover glass 500. The width of the gap between two adjacent perovskite solar cells 310 is approximately 0.1mm.

[0038] Optionally, the deviation between the photoelectric conversion efficiency of the perovskite solar cell 310 and the set photoelectric conversion efficiency is less than or equal to the set value. The set value ranges from 0.2% to 1%. In this way, the photoelectric conversion efficiency of each perovskite solar cell 310 is close to the set photoelectric conversion efficiency, so as to ensure that the perovskite solar cell module 300 can fully and uniformly utilize light energy and convert light energy into electrical energy, thereby improving the efficiency and yield of the perovskite solar cell 10.

[0039] It should be noted that the set photoelectric conversion efficiency value and the set value can be flexibly adjusted according to the actual situation. Specifically, in this embodiment, the set photoelectric conversion efficiency can be set as the average of the photoelectric conversion efficiencies of all remaining perovskite solar cells 310 except for the perovskite solar cell 310 to be compared and judged. The set value can be set to 0.5%. In other embodiments, the set photoelectric conversion efficiency can also be a preset fixed value. The set value can also be set to 0.3%, 0.4%, 0.6%, 0.7%, 0.8%, or 0.9%, etc.

[0040] Specifically, in this embodiment, during the manufacturing of the perovskite solar cell 310, the perovskite solar cell 310 is first processed in an area less than 0.1m². 2The perovskite layer is coated and the functional layer is deposited on the substrate. Small equipment is used in parallel for processes that affect uniformity, such as coating and deposition, allowing multiple small machines to process multiple perovskite solar cells 310 simultaneously. Larger equipment can be used for other processes that do not affect uniformity, ensuring consistency and increasing production capacity. Furthermore, an online inspection station is set up after the laser edge cleaning station for the perovskite solar cells 310, employing electroluminescence (EL) imaging and micro-area IV testing to screen perovskite solar cells 310 with photoelectric conversion efficiency deviations exceeding set values ​​or significant defects, achieving full inspection of all perovskite solar cells 310.

[0041] In one embodiment, the first encapsulating film 200 is configured as a UV-converting EVA film or a UV-converting POE film. The mass of the first encapsulating film 200 is greater than or equal to 400 g / m³. 2 (grams per square meter). Thus, the first encapsulating film 200 can buffer the perovskite solar cell 310 while effectively reducing the impact of ultraviolet light on the performance of the perovskite solar cell module 300, thereby improving the reliability and lifespan of the perovskite solar cell 10.

[0042] It should be noted that UV-converting EVA (ethylene-vinyl acetate copolymer) film refers to a functional film whose performance is improved by cross-linking or modifying EVA through ultraviolet radiation.

[0043] It should be noted that UV-converting POE (polyolefin elastomer) film refers to a functional film that achieves cross-linking or performance optimization through a chemical reaction triggered by ultraviolet radiation.

[0044] In one embodiment, the second encapsulating film 400 is configured as a UV-blocking film. Thus, the second encapsulating film 400 can also block ultraviolet light, effectively reducing the impact of ultraviolet light on the performance of the perovskite solar cell module 300, and improving the reliability and lifespan of the perovskite solar cell 10.

[0045] It should be noted that UV-blocking film refers to a functional film that can selectively block ultraviolet light while allowing visible or infrared light to pass through.

[0046] In other embodiments, the second encapsulating film 400 may also be configured as a high-transparency film.

[0047] It should be noted that high-transmittance adhesive film refers to functional adhesive film with extremely high light transmittance (usually >90%), low haze (<1%), excellent weather resistance and adhesion.

[0048] The shape and size of the front cover glass 100, the shape and size of the first encapsulating film 200, the shape and size of the second encapsulating film 400, and the shape and size of the rear cover glass 500 can all be flexibly adjusted according to actual usage needs.

[0049] In one embodiment, the length of the front cover glass 100 is the same as the length of the rear cover glass 500. The width of the front cover glass 100 is the same as the width of the rear cover glass 500. The thickness of both the front cover glass 100 and the rear cover glass 500 ranges from 2 mm to 2.5 mm.

[0050] In this specific embodiment, both the front cover glass 100 and the rear cover glass 500 are made of ultra-clear tempered glass. The thickness of both the front cover glass 100 and the rear cover glass 500 can be flexibly selected and adjusted according to different usage scenarios.

[0051] The length of the first encapsulating film 200 can be greater than, equal to, or less than the length of the front cover glass 100. Similarly, the length of the second encapsulating film 400 can be greater than, equal to, or less than the length of the rear cover glass 500. Likewise, the width of the first encapsulating film 200 can be greater than, equal to, or less than the width of the front cover glass 100. The width of the second encapsulating film 400 can also be greater than, equal to, or less than the width of the rear cover glass 500.

[0052] Specifically, in this embodiment, the front cover glass 100, the first encapsulating film 200, the second encapsulating film 400, and the rear cover glass 500 are all rectangular structures. The length of the first encapsulating film 200 is less than the length of the front cover glass 100, and the difference in length between the two is 6 mm. The width of the first encapsulating film 200 is less than the width of the front cover glass 100, and the difference in width between the two is 6 mm. The length of the second encapsulating film 400 is less than the length of the rear cover glass 500, and the difference in length between the two is 6 mm. The width of the second encapsulating film 400 is less than the width of the rear cover glass 500, and the difference in width between the two is 6 mm.

[0053] In one embodiment, the perovskite solar cell module 300 further includes multiple conductive adhesive components. Each conductive adhesive component is used to electrically connect two adjacent perovskite solar cells 310. Thus, the conductive adhesive components are used to meet the series and parallel connection requirements of the various perovskite solar cells 310, facilitating the replacement of defective perovskite solar cells 310.

[0054] The conductive adhesive component can be either conductive adhesive or conductive tape.

[0055] Optionally, the perovskite solar cell module 300 also includes lead-out electrodes with multiple leads. The perovskite solar cells 310 are arranged in a rectangular array and spaced apart. Each perovskite solar cell 310 has positive and negative electrodes. Each lead-out terminal is located between two adjacent perovskite solar cells 310 and is spaced 2mm to 5mm from each corresponding positive and negative electrode. Each lead-out terminal is electrically connected to its corresponding positive and negative electrode via a conductive adhesive component.

[0056] like Figure 2 As shown, in one embodiment, the perovskite solar cell 10 further includes an edge-sealing tape 600 extending circumferentially along the front cover glass 100. The edge-sealing tape 600 is located between the edge of the front cover glass 100 and the edge of the rear cover glass 500, and is used to seal the gap between the front cover glass 100 and the rear cover glass 500. Thus, the front cover glass 100, the rear cover glass 500, and the edge-sealing tape 600 together form a sealed space for protecting the perovskite solar cell 310, effectively preventing moisture and oxygen from entering the sealed space and interfering with the perovskite solar cell 310, ensuring the stable performance of the perovskite solar cell module 300, and improving the electrical performance and lifespan of the perovskite solar cell 10.

[0057] In this specific embodiment, the sealing tape 600 is set as an aluminum foil tape with a butyl rubber system. The sealing tape 600 is ring-shaped and located between the front cover glass 100 and the rear cover glass 500. Each perovskite solar cell 310 is spaced apart on the inner side of the sealing tape 600.

[0058] The width and moisture permeability of the edge sealing tape 600 can be flexibly adjusted according to actual usage needs. Specifically, in this embodiment, the width of the edge sealing tape 600 ranges from 8mm to 12mm. The moisture permeability of the edge sealing tape 600 is less than or equal to 0.1g / (m²·day).

[0059] In one embodiment, a battery encapsulation system is also provided for obtaining the perovskite solar cell 10 in any of the above embodiments. A front cover glass 100, a first encapsulating film 200, a perovskite cell module 300, a second encapsulating film 400, and a rear cover glass 500 are sequentially stacked to form a battery assembly. The battery encapsulation system includes an edge-sealing device and a laminator. The edge-sealing device is used to seal the edges of the battery assembly. The laminator is used to perform vacuuming and lamination processes on the battery assembly. Thus, the sealing device applies sealing tape 600 between the edge of the front cover glass 100 and the edge of the rear cover glass 500. After the sealing tape 600, the front cover glass 100, and the rear cover glass 500 form a sealed space, the laminator performs a vacuum treatment on the sealed space, and then performs a lamination treatment on the battery module after the vacuum treatment. This ensures that each perovskite cell 310 is in a vacuum environment, preventing the perovskite cell 310 from reacting with water and oxygen in the air. This ensures that the perovskite cell 310 can be continuously and stably tooled, improving the reliability and encapsulation yield of the perovskite solar cell 10.

[0060] Optionally, the battery encapsulation system also includes an adhesive application and framing device for applying adhesive and framing the edges of the battery assembly after lamination and cooling.

[0061] The edge sealing device can be any existing structure capable of attaching the edge sealing tape 600 to the edge between the front cover glass 100 and the rear cover glass 500. The laminator can be any existing structure for laminating the perovskite solar cell 10. The adhesive application and framing device can be any existing structure for applying adhesive and framing the edges of the perovskite solar cell 10. The vacuuming time for the sealed space and the lamination time and temperature for the cell assembly can be flexibly adjusted according to actual usage requirements.

[0062] Optionally, the vacuuming time for the laminator during the vacuuming process of the battery module is 2 to 5 minutes. The lamination time for the laminator during the lamination process of the battery module is 10 to 20 minutes. The lamination temperature for the lamination process of the battery module is 120°C to 160°C.

[0063] Specifically, in this embodiment, when encapsulating the perovskite solar cell 10, firstly, after laying a first encapsulating film 200 on the upper surface of the front cover glass 100, the finished perovskite solar cells 310 are arranged and laid on the first encapsulating film 200. Conductive adhesive components are used to achieve modular series and parallel connection, which is then led out by busbars. Next, a second encapsulating film 400 and a rear cover glass 500 are laid accordingly, and edge sealing tape 600 is used to seal the edges of the front cover glass 100 and the rear cover glass 500 to form a sealed space to protect each perovskite solar cell 310. Then, a laminator is used to first evacuate the sealed space for 2 to 5 minutes, followed by lamination for 10 to 20 minutes at a lamination temperature of 120°C to 160°C. Finally, after the laminated components have been fully cooled, they are subjected to edge gluing and framing. Meanwhile, the busbars are connected and led out through junction boxes. After being fully cured, the perovskite solar cell 10 is obtained.

[0064] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0065] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0067] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0069] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A perovskite solar cell, characterized in that, include: Front hood glass; The first encapsulating film is laid on the front cover glass; A perovskite solar cell module includes multiple perovskite solar cells, each of which is arranged and laid on the side of the first encapsulating film away from the front cover glass. Each perovskite solar cell includes a substrate, a perovskite layer coated on the substrate, and a functional layer deposited on the substrate. The area of ​​the substrate is less than or equal to 0.1 m². 2 ; The second encapsulating film is laid on the perovskite battery module; The rear cover glass is placed on the second encapsulating film.

2. The perovskite solar cell according to claim 1, characterized in that, The length and width of the perovskite solar cell are both in the range of 100mm to 300mm.

3. The perovskite solar cell according to claim 2, characterized in that, The deviation between the photoelectric conversion efficiency of the perovskite solar cell and the set photoelectric conversion efficiency is less than or equal to the set value, which ranges from 0.2% to 1%.

4. The perovskite solar cell according to claim 1, characterized in that, The first encapsulating film is configured as either a UV-converting EVA film or a UV-converting POE film, and the mass of the first encapsulating film is greater than or equal to 400 g / m³. 2 ; And / or, the second encapsulating film is configured as a UV-blocking film.

5. The perovskite solar cell according to claim 1, characterized in that, The length of the front cover glass is the same as the length of the rear cover glass, the width of the front cover glass is the same as the width of the rear cover glass, and the thickness of the front cover glass is in the range of 2mm to 2.5mm.

6. The perovskite solar cell according to claim 1, characterized in that, The perovskite solar cell module also includes multiple conductive adhesive components, each of which is used to electrically connect two adjacent perovskite solar cells.

7. The perovskite solar cell according to any one of claims 1 to 6, characterized in that, The perovskite solar cell also includes an edge sealing tape extending circumferentially along the front cover glass, the edge sealing tape being located between the edge of the front cover glass and the edge of the rear cover glass, and used to seal the gap between the front cover glass and the rear cover glass.

8. The perovskite solar cell according to claim 7, characterized in that, The width of the sealing tape ranges from 8mm to 12mm; And / or, the water vapor permeability of the sealing tape is less than or equal to 0.1 g / (m²·day).

9. A battery packaging system, characterized in that, To obtain a perovskite solar cell as described in any one of claims 1 to 8, the front cover glass, the first encapsulating film, the perovskite cell module, the second encapsulating film, and the rear cover glass are stacked sequentially to form a cell assembly. The cell encapsulation system includes an edge sealing device and a laminator. The edge sealing device is used to perform edge sealing on the cell assembly, and the laminator is used to perform vacuuming and lamination on the cell assembly.

10. The battery packaging system according to claim 9, characterized in that, The vacuuming time for the laminator to perform vacuuming on the battery assembly is 2 to 5 minutes; the lamination time for the laminator to perform lamination on the battery assembly is 10 to 20 minutes; and the lamination temperature for the lamination on the battery assembly is 120°C to 160°C.

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