Perovskite cell assembly and solar cell

Abstract

The utility model discloses a perovskite cell assembly and a solar cell. The perovskite battery assembly comprises at least two perovskite batteries which are electrically connected. The perovskite battery assembly comprises a substrate, a bottom electrode layer, a perovskite functional layer, a top electrode layer and an isolation part, the bottom electrode layer is located on the surface of the substrate, and the bottom electrode layer is provided with a through first scribing groove; the perovskite functional layer is located on one side, far away from the substrate, of the bottom electrode layer, and the perovskite functional layer is provided with a second scribing groove; the top electrode layer is located on the side, away from the bottom electrode layer, of the perovskite functional layer, the top electrode layer is provided with a third scribed line groove, and the third scribed line groove penetrates through the top electrode layer and the perovskite functional layer; and the isolation part is filled in the third scribing groove. According to the technical scheme of the embodiment of the utility model, the risk of internal short circuit of the perovskite cell can be reduced, and the production yield of the perovskite cell assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cells, in particular to a perovskite cell assembly and a solar cell. Background Art

[0002] Perovskite materials have excellent photoelectric properties. They have the characteristics of high absorption coefficient, adjustable photoelectric properties and excellent bipolar transport capability. At the same time, they have the advantages of low material usage, low component prices and low investment costs, making perovskite photovoltaics more promising in application scenarios.

[0003] When producing large-area perovskite battery substrates, the process mainly includes three steps: thin film preparation, laser etching, and packaging. Among them, the laser etching process is used to divide the large-area substrate into separate modules, construct the circuit structure in the perovskite battery, and connect multiple perovskite batteries in series into components. The laser scribing process is used to form three laser lines P1, P2, and P3 in the perovskite battery. During the etching of the P3 laser scribing line, there will be edge collapse or craters in the P3 line groove, resulting in some conductive material remaining near the P3 line groove. This can easily lead to the residual conductive material being squeezed into the P3 line groove during the subsequent lamination and packaging process, contacting the bottom electrode in the groove, thereby posing a serious risk of short circuit. Utility Model Content

[0004] The utility model provides a perovskite battery assembly and a solar cell, which solves the problem that the conductive material remaining from laser etching is pressed into the groove and contacts the bottom electrode during the packaging process, reduces the risk of internal short circuit in the perovskite battery, and improves the production yield of the perovskite battery assembly.

[0005] According to one aspect of the present invention, a perovskite cell assembly is provided, wherein the perovskite cell assembly comprises at least two electrically connected perovskite cells;

[0006] The perovskite battery assembly comprises:

[0007] substrate;

[0008] A bottom electrode layer is located on the surface of the substrate, and the bottom electrode layer is provided with a first scribed groove running through it;

[0009] a perovskite functional layer, located on a side of the bottom electrode layer away from the substrate and filling the first scribed groove; the perovskite functional layer is provided with a second scribed groove, and the second scribed groove passes through the perovskite functional layer;

[0010] a top electrode layer, located on a side of the perovskite functional layer away from the bottom electrode layer, and filling the second scribed groove; the top electrode layer is provided with a third scribed groove, and the third scribed groove passes through the top electrode layer and the perovskite functional layer;

[0011] The isolation portion is filled in the third scored groove.

[0012] Optionally, the isolation portion has a preset height;

[0013] The preset height is greater than or equal to the thickness of the perovskite functional layer.

[0014] Optionally, the preset height of the isolation portion is equal to the sum of the thickness of the perovskite functional layer and the thickness of the top electrode layer.

[0015] Optionally, the isolation portion is made of an insulating material, and the bottom electrode layer is made of fluorine-doped tin oxide.

[0016] The insulating material is a transparent and hydrophobic material, and has physical wettability with the bottom electrode layer.

[0017] Optionally, the insulating material includes a viscous polymer or a polymer dispersion dispersed in a preset solvent;

[0018] Wherein, the preset solvent does not react with the perovskite functional layer.

[0019] Optionally, the preset solvent includes toluene or petroleum ether.

[0020] Optionally, the orthographic projection of the first scribed groove on the substrate, the orthographic projection of the second scribed groove on the substrate, and the orthographic projection of the third scribed groove on the substrate are arranged in sequence and spaced apart in a horizontal direction.

[0021] Optionally, the perovskite battery assembly further comprises: an adhesive film and an encapsulation layer;

[0022] The adhesive film is located on a side of the top electrode layer away from the perovskite functional layer, and the encapsulation layer is located on a side of the adhesive film away from the top electrode layer;

[0023] The orthographic projections of the adhesive film and the encapsulation layer on the substrate cover the orthographic projections of the top electrode layer and the isolation portion on the substrate.

[0024] Optionally, the perovskite functional layer includes a first charge transport layer, a perovskite absorption layer and a second charge transport layer stacked in sequence.

[0025] According to another aspect of the present invention, a solar cell is provided, comprising the perovskite cell assembly according to any embodiment of the first aspect.

[0026] The perovskite cell assembly provided by the embodiment of the present invention includes at least two electrically connected perovskite cells, each having the same structure. In each perovskite cell, a bottom electrode layer located on the surface of the substrate is provided with a first groove extending therethrough, a perovskite functional layer is provided on the side of the bottom electrode layer away from the substrate and fills the first groove, and a second groove extending therethrough is provided on the perovskite functional layer. A top electrode layer is provided on the side of the perovskite functional layer away from the bottom electrode layer and fills the second groove, a third groove extending therethrough is provided between the top electrode layer and the perovskite functional layer, and an isolation portion is provided that fills only the interior of the third groove. In this way, without increasing the overall thickness of the perovskite battery module and saving material costs, the third score groove formed by edge collapse or crater phenomenon during the etching process is supported by providing an isolation part, so that in the subsequent lamination and packaging process, the conductive material remaining near the third score groove will not be pressed into the third score groove, thereby protecting the perovskite functional layer from contacting and reacting with the top electrode layer material, affecting the performance of the perovskite battery module; and it can also prevent the top electrode layer material from being pressed into the third score groove and contacting the bottom electrode layer, reducing the risk of internal short circuit in the perovskite battery module and improving the production yield of the perovskite battery module.

[0027] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic cross-sectional view of a perovskite battery assembly according to an embodiment of the present invention;

[0030] Figure 2 1 is a schematic cross-sectional view of another perovskite battery assembly provided according to an embodiment of the present invention;

[0031] Figure 3 1 is a schematic cross-sectional view of another perovskite battery assembly provided according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic flow chart of a method for preparing a perovskite battery assembly according to an embodiment of the present invention;

[0033] Figure 5 It is a structural schematic diagram corresponding to each step in a method for preparing a perovskite battery component provided according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0034] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] The present invention provides a perovskite battery assembly. This large-area perovskite battery assembly includes at least two perovskite cells connected in series. Each perovskite cell has the same structure. In the present invention, a single perovskite cell is used as an example to illustrate the structure of the perovskite battery assembly. Figure 1 The cross-sectional structure diagram of a perovskite battery assembly provided by the embodiment of the present utility model is shown in FIG. Figure 1 As shown, the perovskite cell assembly includes: a substrate 10 , a bottom electrode layer 20 , a perovskite functional layer 30 , a top electrode layer 40 and an isolation portion 50 .

[0037] The bottom electrode layer 20 is located on the surface of the substrate 10, and the bottom electrode layer 20 is provided with a first groove 21 passing through the bottom electrode layer 20; the perovskite functional layer 30 is located on the side of the bottom electrode layer 20 away from the substrate 10, and is filled with the first groove 21; the perovskite functional layer 30 is provided with a second groove 31, and the second groove 31 passes through the perovskite functional layer 30; the top electrode layer 40 is located on the side of the perovskite functional layer 30 away from the bottom electrode layer 20, and is filled with the second groove 31; the top electrode layer 40 is provided with a third groove 41, and the third groove 41 passes through the top electrode layer 40 and the perovskite functional layer 30; the isolation portion 50 is filled inside the third groove 41.

[0038] Specifically, the bottom electrode layer 20 located on the surface of the substrate 10 is provided with a first scribed groove 21, and the first scribed groove 21 is provided through the bottom electrode layer 20, exposing part of the surface of the substrate 10, thereby dividing the entire bottom electrode layer 20 formed by the large-area perovskite battery component into independent electrodes, that is, forming a corresponding circuit pattern for the bottom electrode layer 20. A perovskite functional layer 30 is provided on the surface of the bottom electrode layer 20 away from the substrate 10, and the perovskite functional layer 30 fills the first scribed groove 21. Exemplarily, the perovskite functional layer 30 may include a hole blocking layer, an electron transport layer, a perovskite layer, and a hole transport layer arranged in a stacked manner. The perovskite functional layer 30 is an important film layer in the perovskite battery component, and its film layer quality affects the performance of the perovskite battery component. The perovskite functional layer 30 is provided with a second scribed groove 31, which extends through the perovskite functional layer 30 and exposes a portion of the bottom electrode layer 20. The second scribed groove 31 divides the large perovskite functional layer into multiple regions, thereby serving as the perovskite functional layer 30 of the perovskite cell assembly. A top electrode layer 40 is provided on the side of the perovskite functional layer 30 facing away from the bottom electrode layer 20, completely filling the second scribed groove 31. A third scribed groove 41 provided in the top electrode layer 40 extends through the top electrode layer 40 and the perovskite functional layer 30, exposing a portion of the bottom electrode layer 20. The area between the side of the first scribed groove 21 facing away from the second scribed groove 31 and the side of the third scribed groove 41 facing away from the second scribed groove 31 is called the dead zone, representing the area of ​​the perovskite cell assembly where power generation is not possible. The area outside the dead zone is the active area of ​​the perovskite cell assembly, representing the area used for power generation.

[0039] Due to the significant limitations of existing laser processing technologies, common phenomena such as edge chipping or craters occur when etching each laser-etched groove, resulting in some material remaining near the laser-etched groove, with the height of the residual material reaching 10μm. However, for the first and second scribed grooves 21, 31, the perovskite functional layer 30 will completely fill the first scribed groove 21, and the top electrode layer 40 will completely fill the second scribed groove 31, so that the first scribed groove 21 or second scribed groove 31 with edge chipping or cratering can be supported or isolated. When the next film layer covers the surface of the first or second scribed groove 21, 31, the residual material with edge chipping or cratering will not be pressed into the corresponding first or second scribed groove 21, 31. After etching the top electrode layer 40 and the perovskite functional layer 30 to form the third scribed groove 41, the encapsulation layer is directly applied to the surface of the top electrode layer 40. A gap exists between the encapsulation layer and the bottom electrode layer 20. This makes it easy for the encapsulation layer to press residual conductive material near the third scribed groove 41 into the third scribed groove 41 during the lamination and packaging process. This can cause the conductive material of the top electrode layer 40 to contact the bottom electrode layer 20 exposed in the third scribed groove 41, posing a risk of short circuit. In this embodiment of the present invention, an isolation portion 50 is provided to fill only the third scribed groove 41 to support the etched third scribed groove 41. In this way, in the subsequent lamination and packaging process, the residual conductive material near the third score groove 41 will not be pressed into the third score groove 41 and contact the perovskite functional layer 30 and the bottom electrode layer 20 without increasing the overall thickness of the perovskite battery component and saving material costs, thereby protecting the perovskite functional layer 30 from reacting with the material of the top electrode layer 40 and affecting its performance, and avoiding the risk of internal short circuit caused by contact between the conductive materials of the bottom electrode layer 20 and the top electrode layer 40, thereby improving the production yield of the perovskite battery component.

[0040] The perovskite cell assembly provided by the embodiment of the present invention includes at least two electrically connected perovskite cells, each having the same structure. In each perovskite cell, a bottom electrode layer located on the surface of the substrate is provided with a first groove extending therethrough, a perovskite functional layer is provided on the side of the bottom electrode layer away from the substrate and fills the first groove, and a second groove extending therethrough is provided on the perovskite functional layer. A top electrode layer is provided on the side of the perovskite functional layer away from the bottom electrode layer and fills the second groove, a third groove extending therethrough is provided between the top electrode layer and the perovskite functional layer, and an isolation portion is provided that fills only the interior of the third groove. In this way, without increasing the overall thickness of the perovskite battery module and saving material costs, the third score groove formed by edge collapse or crater phenomenon during the etching process is supported by providing an isolation part, so that in the subsequent lamination and packaging process, the conductive material remaining near the third score groove will not be pressed into the third score groove, thereby protecting the perovskite functional layer from contacting and reacting with the top electrode layer material, affecting the performance of the perovskite battery module; and it can also prevent the top electrode layer material from being pressed into the third score groove and contacting the bottom electrode layer, reducing the risk of internal short circuit in the perovskite battery module and improving the production yield of the perovskite battery module.

[0041] Optionally, based on the above embodiment, continue to refer to Figure 1 , the isolation portion 50 has a preset height; wherein the preset height is greater than or equal to the thickness of the perovskite functional layer 30 .

[0042] For example, in this embodiment, H represents the preset height of the isolation portion 50 filled in the third scribed groove 41, and D represents the thickness of the perovskite functional layer 30. For example, the preset height H of the isolation portion 50 filled in the third scribed groove 41 may include a first preset height H1. Figure 1 The figure shows a case where the first preset height H1 of the isolation portion 50 is equal to the thickness D of the perovskite functional layer 30. By providing the isolation portion 50 in the third scribed groove 41 to provide support, residual conductive material that may cause edge collapse or cratering will not be pressed into the third scribed groove 41 during the subsequent lamination and packaging process. This protects the perovskite functional layer 30 from contacting and reacting with the material of the top electrode layer 40, and prevents the material of the top electrode layer 40 from being pressed into the third scribed groove 41 and contacting the bottom electrode layer 20. This prevents internal short circuits in the perovskite battery module and improves the production yield of the perovskite battery module.

[0043] Optionally, Figure 2 This is a cross-sectional structural diagram of another perovskite battery assembly provided by the embodiment of the present invention. Figure 2 As shown, the predetermined height of the isolation portion 50 is equal to the sum of the thickness of the perovskite functional layer 30 and the thickness of the top electrode layer 40 .

[0044] For example, in this embodiment, H is still used to represent the preset height of the isolation portion 50 filled in the third scribed groove 41, D is used to represent the thickness of the perovskite functional layer 30, and d is used to represent the thickness of the top electrode layer 40. For example, the preset height H of the isolation portion 50 filled in the third scribed groove 41 can also include a second preset height H2. The second preset height H2 of the isolation portion 50 filled in the third scribed groove 41 is set to be the sum of the thickness D of the perovskite functional layer 30 and the thickness d of the top electrode layer 40. Then, the surface of the isolation portion 50 is flush with the surface of the side of the top electrode layer 40 away from the perovskite functional layer 30, and the isolation portion 50 plays a good supporting role for the third scribed groove 41. The isolation portion 50 is set in this way to fill the third scribed groove 41, protect the bottom electrode layer 20 and the perovskite functional layer 30, and at the same time play a role in flattening the surface of the perovskite battery component. In the subsequent lamination packaging process, the packaging material directly and evenly covers the surface of the top electrode layer 40 and the isolation portion 50, so that the material of the top electrode layer 40 remaining near the third scribed groove 41 will not be pressed into the third scribed groove 41 and contact the bottom electrode layer 20 to cause a short circuit, nor will it contact the perovskite functional layer 30, causing the perovskite functional layer 30 to react and affect the performance.

[0045] Optionally, based on the above embodiments, the material of the isolation portion 50 is an insulating material, and the material of the bottom electrode layer 20 includes fluorine-doped tin oxide; the insulating material is a transparent and hydrophobic material, and there is physical wettability between the insulating material and the bottom electrode layer 20.

[0046] For example, the perovskite functional layer 30 is an important film layer in the perovskite cell assembly that absorbs sunlight to generate electricity. The perovskite functional layer 30 includes a first charge transport layer, a perovskite absorption layer, and a second charge transport layer stacked in sequence. The material used for the bottom electrode layer 20 provided on the surface of the substrate 10 can be fluorine-doped tin oxide (F-doped Tin Oxide, FTO). To prevent internal short circuits in the perovskite cell assembly, the material used for the isolation portion 50 provided in the third scribed groove 41 is an insulating material. The insulating material can be selected from a material with good physical wettability with the bottom electrode layer 20, so that the formed isolation portion 50 can be in close contact with the bottom electrode layer 20, thereby ensuring the reliability of the isolation portion 50. Furthermore, the insulating material can be a transparent and hydrophobic material. This allows for internal encapsulation of the perovskite functional layer 30 and the top electrode layer 40 through the isolation portion 50 before the encapsulation layer is provided for external encapsulation. This prevents moisture from the external environment from penetrating the interior of the perovskite cell assembly, and prevents the perovskite functional layer 30 from decomposing due to contact with moisture, thereby ensuring the stability of the internal perovskite components and thus the lifespan of the perovskite cell assembly. Exemplarily, the insulating material comprises a viscous polymer or a polymer dispersion in a predetermined solvent; wherein the predetermined solvent does not react with the perovskite functional layer 30. Exemplarily, the predetermined solvent comprises toluene or petroleum ether, but this is not intended to be limiting. Thus, the isolation portion 50 formed of the insulating material, upon contact with the perovskite functional layer 30, does not cause the perovskite functional layer 30 to react, thereby ensuring the stability of the perovskite material within the perovskite cell assembly.

[0047] In the case where an isolation layer 51 is provided on the entire surface of the top electrode layer 40, by adopting a hydrophobic insulating material to form the isolation layer 51, internal packaging can be achieved through the isolation layer 51 before external packaging, thereby further improving the packaging effect of the perovskite battery assembly, making it easier for the perovskite functional layer 30 to isolate external water vapor, thereby ensuring the stability of the internal perovskite material.

[0048] Optionally, based on the above embodiments, continue to refer to Figure 2 The orthographic projection of the first scribed groove 21 on the substrate 10 , the orthographic projection of the second scribed groove 31 on the substrate 10 , and the orthographic projection of the third scribed groove 41 on the substrate 10 are arranged in sequence in a horizontal direction.

[0049] For example, the first scribed groove 21, the second scribed groove 31 and the third scribed groove 41 formed by laser etching are arranged at intervals in the horizontal direction in the dead zone of the perovskite cell assembly, and the interval between two adjacent laser scribed grooves does not need to be set too large, so as to minimize the area ratio of the dead zone in the perovskite cell assembly and increase the area ratio of the effective zone, thereby improving the effective power generation efficiency of the perovskite cell assembly.

[0050] Optionally, Figure 3 This is a cross-sectional structural diagram of another perovskite battery assembly provided by the embodiment of the present invention. Figure 3 As shown, the perovskite battery assembly further includes: an adhesive film 60 and an encapsulation layer 70.

[0051] The adhesive film 60 is located on the side of the top electrode layer 40 away from the perovskite functional layer 30, and the encapsulation layer 70 is located on the side of the adhesive film 60 away from the top electrode layer 40; the orthographic projections of the adhesive film 60 and the encapsulation layer 70 on the substrate 10 cover the orthographic projections of the top electrode layer 40 and the isolation portion 50 on the substrate 10.

[0052] For example, the adhesive film 60 can be made of a polyolefin elastomer, or POE film. The adhesive film 60 evenly covers the entire surface of the top electrode layer 40 and the separator 50. An encapsulation layer 70 is disposed on the surface of the adhesive film 60. The encapsulation layer 70 is tightly bonded to the entire surface of the top electrode layer 40 through the adhesive film 60, ensuring a good encapsulation effect for the perovskite cell assembly and preventing external moisture from penetrating the assembly, thereby extending the life of the perovskite cell assembly.

[0053] The embodiment of the present utility model also provides a method for preparing a perovskite battery assembly. Figure 4 This is a schematic flow chart of a method for preparing a perovskite battery assembly provided by an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure corresponding to each step in the preparation method of a perovskite battery component provided by an embodiment of the present invention. Figure 4 and Figure 5 The preparation method of the perovskite battery component specifically includes the following steps:

[0054] S110 , providing a substrate 10 .

[0055] S120 , forming a bottom electrode layer 20 on the surface of the substrate 10 , and laser etching the bottom electrode layer 20 to form a first scribed groove 21 ; the first scribed groove 21 is set to penetrate the bottom electrode layer 20 .

[0056] S130 , forming a perovskite functional layer 30 on a side of the bottom electrode layer 20 away from the substrate 10 and filling the first scribed groove 21 , laser etching the perovskite functional layer 30 to form a second scribed groove 31 ; the second scribed groove 31 is set to penetrate the perovskite functional layer 30 .

[0057] S140, forming a top electrode layer 40 on a side of the perovskite functional layer 30 away from the bottom electrode layer 20 and filling the second scribed groove 31, laser etching the top electrode layer 40 and the perovskite functional layer 30 to form a third scribed groove 41; the third scribed groove 41 is set to penetrate the top electrode layer 40 and the perovskite functional layer 30.

[0058] S150 , forming an isolation portion 50 inside the third scored groove 41 by spraying.

[0059] The method for preparing a perovskite cell assembly provided by an embodiment of the present invention comprises the following steps: after laser etching forms a third groove penetrating the top electrode layer and the perovskite functional layer, spraying the interior of the third groove to form an isolation portion, so that the isolation portion fills the third groove. In this way, during subsequent lamination and packaging, the adhesive film covering the surface of the top electrode layer is unlikely to press the top electrode layer material remaining near the third groove into the third groove, thereby effectively preventing the top electrode layer material from falling into the third groove and contacting the bottom electrode layer, preventing internal short circuits in the perovskite cell assembly, and facilitating improved production yields of the perovskite cell assembly.

[0060] The present invention also provides a solar cell in an embodiment. The solar cell includes the perovskite cell assembly provided by any of the above embodiments, and has the same beneficial effects as the above perovskite cell assembly. Specifically, after laser etching forms a third scribed groove, an isolation portion is provided within the third scribed groove to fill the third scribed groove. This prevents the adhesive film from pressing residual top electrode layer material near the third scribed groove into the third scribed groove during the subsequent lamination and packaging process. This effectively prevents residual top electrode layer material from falling into the third scribed groove and contacting the bottom electrode layer, causing a short circuit. This is beneficial for improving the production yield of the perovskite cell assembly.

[0061] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. A perovskite battery component, characterized in that: The perovskite cell assembly includes at least two electrically connected perovskite cells; The perovskite battery assembly comprises: substrate; A bottom electrode layer is located on the surface of the substrate, and the bottom electrode layer is provided with a first scribed groove running through it; a perovskite functional layer, located on a side of the bottom electrode layer away from the substrate and filling the first scribed groove; the perovskite functional layer is provided with a second scribed groove, and the second scribed groove passes through the perovskite functional layer; a top electrode layer, located on a side of the perovskite functional layer away from the bottom electrode layer, and filling the second scribed groove; the top electrode layer is provided with a third scribed groove, and the third scribed groove passes through the top electrode layer and the perovskite functional layer; The isolation portion is filled in the third scored groove.

2. The perovskite battery assembly according to claim 1, characterized in that: The isolation portion has a preset height; The preset height is greater than or equal to the thickness of the perovskite functional layer.

3. The perovskite battery assembly according to claim 2, characterized in that: The preset height of the isolation portion is equal to the sum of the thickness of the perovskite functional layer and the thickness of the top electrode layer.

4. The perovskite battery assembly according to claim 1, characterized in that: The material of the isolation portion is an insulating material, and the material of the bottom electrode layer includes fluorine-doped tin oxide; The insulating material is a transparent and hydrophobic material, and has physical wettability with the bottom electrode layer.

5. The perovskite battery assembly according to claim 4, characterized in that: The insulating material includes a viscous polymer or a polymer dispersion dispersed in a preset solvent; Wherein, the preset solvent does not react with the perovskite functional layer.

6. The perovskite battery assembly according to claim 5, characterized in that: The preset solvent includes toluene or petroleum ether.

7. The perovskite battery assembly according to claim 1, characterized in that: The orthographic projection of the first scribed groove on the substrate, the orthographic projection of the second scribed groove on the substrate, and the orthographic projection of the third scribed groove on the substrate are sequentially spaced apart in a horizontal direction.

8. The perovskite battery assembly according to claim 1, characterized in that: Also includes: Adhesive film and encapsulation layer; The adhesive film is located on a side of the top electrode layer away from the perovskite functional layer, and the encapsulation layer is located on a side of the adhesive film away from the top electrode layer; The orthographic projections of the adhesive film and the encapsulation layer on the substrate cover the orthographic projections of the top electrode layer and the isolation portion on the substrate.

9. The perovskite battery assembly according to claim 1, characterized in that: The perovskite functional layer includes a first charge transport layer, a perovskite absorption layer and a second charge transport layer which are stacked in sequence.

10. A solar cell, characterized in that: Comprising the perovskite battery component according to any one of claims 1 to 9.

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