Perovskite battery assembly and electric equipment

Abstract

The utility model discloses a perovskite battery assembly and an electric device, the perovskite battery assembly comprises a plurality of perovskite battery assembly units, the cross section of each perovskite battery assembly unit is fan-shaped, each perovskite battery assembly unit comprises a first perovskite sub-battery and a second perovskite sub-battery, and the first perovskite sub-battery and the second perovskite sub-battery are electrically connected with each other. The cross section of the first perovskite sub-cell is fan-shaped, the cross section of the second perovskite sub-cell is fan-ring-shaped, and the second perovskite sub-cells are sequentially arranged on the outer side of the first perovskite sub-cell in the radial direction away from the circle center; in the same perovskite cell assembly unit, adjacent first perovskite sub-cells and second perovskite sub-cells are connected in series, and two adjacent second perovskite sub-cells are connected in series. According to the perovskite battery assembly, a novel sub-battery shape is realized, the requirements of different users can be met, and the use requirements of large current and low voltage and large voltage and low current can be met at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of perovskite battery components, and particularly relates to a perovskite battery component and an electrical equipment. Background Art

[0002] Perovskite solar cells (PSCs) have attracted much attention as a new type of thin-film solar cell with high photoelectric conversion efficiency and low manufacturing cost. Perovskite materials have excellent light absorption performance, and the preparation process is relatively simple and environmentally friendly. The required temperature is much lower than the silicon crystal growth temperature, greatly reducing its production energy consumption and cost.

[0003] At present, most perovskite battery components are designed in the shape of rectangular strips, which are mostly applicable to power stations. Their shapes are single, lacking diversity, and the application scenarios are limited and not flexible enough, which is not conducive to the practicality of later product development. Therefore, it is necessary to improve the existing perovskite battery components. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, the purpose of the utility model is to provide a perovskite battery component and an electrical equipment. The perovskite battery component of the utility model realizes a new shape of sub-battery, which can meet the needs of different users, and at the same time can meet the use requirements of large current and low voltage as well as large voltage and low current.

[0005] In one aspect of the utility model, a perovskite battery component is provided. According to the embodiments of the utility model, the cross-section of the perovskite battery component is circular, and the perovskite battery component includes:

[0006] A plurality of perovskite battery component units, the cross-section of each perovskite battery component unit is fan-shaped, each perovskite battery component unit respectively includes a first perovskite sub-battery and a second perovskite sub-battery, the cross-section of the first perovskite sub-battery is fan-shaped, the cross-sections of the second perovskite sub-batteries are all in the shape of a fan ring, and the second perovskite sub-batteries are arranged on the outer side of the first perovskite sub-battery in sequence along the radial direction away from the center of the circle; in the same perovskite battery component unit, the adjacent first perovskite sub-battery and the second perovskite sub-battery are connected in series, and the adjacent two second perovskite sub-batteries are connected in series.

[0007] The perovskite battery module according to the embodiment of the present utility model realizes a novel shape of the sub-battery, which can meet the needs of different users, and at the same time can meet the usage requirements of high current and low voltage as well as high voltage and low current. At the same time, the novel shape of the sub-battery of the present utility model can use laser to complete the series and parallel connection of the perovskite battery module, with simple operation, flexible and variable, strong compatibility, and can accurately control the widths of the isolation grooves and insulation grooves in the perovskite battery module, which is more conducive to reducing the dead area of the perovskite battery module and improving the power generation efficiency of the perovskite battery module. In addition, the novel shape of the sub-battery of the present utility model can use laser to complete the series and parallel connection of the perovskite battery module, which can make up for the market demand for high current and low voltage products, and the perovskite battery module is more suitable for building photovoltaics.

[0008] In addition, the perovskite battery module according to the above embodiment of the present utility model may further have the following additional technical features:

[0009] In some embodiments of the present utility model, the cross-sectional areas of all the first perovskite sub-batteries and all the second perovskite sub-batteries in multiple perovskite battery module units are equal.

[0010] In some embodiments of the present utility model, multiple perovskite battery module units are connected in parallel; the perovskite battery module further includes: a first parallel electrode and a second parallel electrode, the first parallel electrode is arranged at the center position of the perovskite battery module, and the second parallel electrode is arranged at the circumferential position away from the center of the perovskite battery module unit.

[0011] In some embodiments of the present utility model, the first perovskite sub-battery and multiple second perovskite sub-batteries each include: a base layer, a bottom electrode layer, a first charge transport layer, a perovskite absorption layer, a second charge transport layer, and a top electrode layer that are sequentially stacked; the top electrode layer of the first perovskite sub-battery includes a first extension portion, the first extension portion sequentially penetrates the second charge transport layer, the perovskite absorption layer, the first charge transport layer, and contacts the bottom electrode layer in the adjacent second perovskite sub-battery, so that the first perovskite sub-battery is connected in series with the adjacent second perovskite sub-battery; the top electrode layer of the second perovskite sub-battery includes a second extension portion, the second extension portion sequentially penetrates the second charge transport layer, the perovskite absorption layer, the first charge transport layer, and contacts the bottom electrode layer in the adjacent second perovskite sub-battery outside, so that two adjacent second perovskite sub-batteries are connected in series; the first parallel electrode is connected to the bottom electrode layer at the center position of the first perovskite sub-battery, and the second parallel electrode is connected to the top electrode layer at the position away from the center of the second perovskite sub-battery.

[0012] In some embodiments of the present utility model, both the first perovskite sub-cell and the second perovskite sub-cell include: a base layer, a bottom electrode layer, a first charge transport layer, a perovskite absorption layer, a second charge transport layer, and a top electrode layer that are sequentially stacked; the top electrode layer of the second perovskite sub-cell includes a second extension portion, and the second extension portion sequentially penetrates through the second charge transport layer, the perovskite absorption layer, and the first charge transport layer, and contacts the bottom electrode layer of the adjacent inner first perovskite sub-cell or the second perovskite sub-cell to be connected in series with the adjacent inner first perovskite sub-cell or the second perovskite sub-cell; the first parallel electrode is connected to the top electrode layer at the center position of the first perovskite sub-cell, and the second parallel electrode is connected to the bottom electrode layer at a position away from the center of the second perovskite sub-cell.

[0013] In some embodiments of the present utility model, a part of the first charge transport layer of the first perovskite sub-cell penetrates through the bottom electrode layer to the base layer, and a part of the first charge transport layer of the second perovskite sub-cell penetrates through the bottom electrode layer to the base layer; and / or, isolation grooves are provided between the adjacent first perovskite sub-cell and the second perovskite sub-cell, and between two adjacent second perovskite sub-cells, and the isolation grooves penetrate from the top electrode layer to the bottom electrode layer.

[0014] In some embodiments of the present utility model, an insulating groove is provided between two adjacent perovskite battery component units, and the insulating groove penetrates from the top electrode layer to the base layer; the first charge transport layer is a hole transport layer, and the second charge transport layer is an electron transport layer, or the first charge transport layer is an electron transport layer, and the second charge transport layer is a hole transport layer; and / or, the base layer is a flexible base layer; and / or, the shape of the second parallel electrode is annular.

[0015] In some embodiments of the present utility model, the shape and size of each perovskite battery component unit are the same.

[0016] In some embodiments of the present utility model, the number of perovskite battery component units is an even number.

[0017] In the second aspect of the present utility model, the present utility model provides an electrical device. According to the embodiments of the present utility model, the electrical device has the perovskite battery assembly as described above. Thus, the electrical device has all the advantages of the perovskite battery assembly, which will not be described in detail herein.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0020] Figure 1 is a top view of the perovskite battery assembly according to an embodiment of the present utility model;

[0021] Figure 2 is a cross-sectional schematic view of a perovskite battery assembly unit according to some embodiments of the present utility model;

[0022] Figure 3 is a cross-sectional schematic view of a perovskite battery assembly unit according to still some other embodiments of the present utility model.

[0023] Reference numerals:

[0024] 100 - perovskite battery assembly unit, 110 - first perovskite sub - battery, 120 - second perovskite sub - battery, 101 - base layer, 102 - bottom electrode layer, 103 - first charge transport layer, 104 - perovskite absorption layer, 105 - second charge transport layer, 106 - top electrode layer, 200 - insulating groove, 300 - isolation groove, 400 - second parallel electrode, 500 - first parallel electrode. Detailed Description of the Embodiments

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. 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 the present utility model and simplifying the description, rather than indicating or implying that the referred elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0027] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0030] In one aspect of the present utility model, a perovskite battery assembly is provided. According to an embodiment of the present utility model, with reference to the attached Figure 1, the cross-section of the perovskite battery module is circular. The perovskite battery module includes: a plurality of perovskite battery module units 100. The cross-section of each perovskite battery module unit 100 is fan-shaped. Each perovskite battery module unit 100 respectively includes a first perovskite sub-battery 110 and a second perovskite sub-battery 120. The cross-section of the first perovskite sub-battery 110 is fan-shaped, and the cross-section of the second perovskite sub-battery 120 is in the shape of a fan-shaped ring. The first perovskite sub-battery 110 is arranged at a position close to the center of the circle, and the second perovskite sub-battery 120 is arranged on the outside of the first perovskite sub-battery 110 in sequence along the radial direction away from the center of the circle. In the same perovskite battery module unit, the adjacent first perovskite sub-battery 110 and the second perovskite sub-battery 120 are connected in series, and the adjacent two second perovskite sub-batteries 120 are connected in series. Thus, the perovskite battery module provided by the present invention includes a plurality of perovskite battery module units 100 with fan-shaped cross-sections. Each perovskite battery module unit 100 respectively includes a first perovskite sub-battery 110 with a fan-shaped cross-section and a plurality of second perovskite sub-batteries 120 with fan-shaped ring cross-sections. The perovskite sub-batteries included in each perovskite battery module unit 100 are connected in series. By adjusting the number of module units, the area of the sub-batteries, and the connection relationship between the module units in the circular perovskite battery module, the current and voltage output by the circular module can be changed. That is, the perovskite battery module of the present invention realizes a new design of the perovskite battery module, which can meet the needs of different users, and at the same time can meet the use requirements of high current and low voltage as well as high voltage and low current. At the same time, the new perovskite battery module of the present invention can use laser to complete the series and parallel connection of the perovskite battery module. The operation is simple, flexible and changeable, with strong compatibility, and can accurately control the width of the isolation groove and the insulation groove in the perovskite battery module, which is more conducive to reducing the dead area of the perovskite battery module and improving the power generation efficiency of the perovskite battery module. In addition, the new perovskite battery module of the present invention can use laser to complete the series and parallel connection of the perovskite battery module, which can make up for the market demand for high current and low voltage products, and the perovskite battery module is more suitable for building photovoltaics.

[0031] According to some other specific embodiments of the present invention, the cross-sectional areas of the first perovskite sub-batteries 110 and the second perovskite sub-batteries 120 in the plurality of perovskite battery module units 100 are equal, thereby ensuring that the perovskite battery module outputs the maximum current and improving the power generation efficiency of the perovskite battery module.

[0032] According to some other specific embodiments of the present invention, the shapes and sizes of each perovskite battery module unit are the same. Thus, circular scribing can be performed, which is convenient for scribing and can reduce the scribing time.

[0033] According to some further specific embodiments of the present utility model, the number of the perovskite battery component units is an even number. Thus, the two opposite insulating lines form the diameter of a circle, which is convenient for scribing and reduces the scribing time.

[0034] According to some specific embodiments of the present utility model, a plurality of perovskite battery component units 100 are connected in parallel. The perovskite battery component further includes: a first parallel electrode 500 and a second parallel electrode 400. The first parallel electrode 500 is disposed at the center position of the perovskite battery component, and the second parallel electrode 400 is disposed at the circumferential position of the perovskite battery component unit away from the center.

[0035] According to some further specific embodiments of the present utility model, with reference to the attached Figure 2 Figure, the first perovskite sub - battery 110 and the second perovskite sub - battery 120 both include: a base layer 101, a bottom electrode layer 102, a first charge transport layer 103, a perovskite absorption layer 104, a second charge transport layer 105, and a top electrode layer 106 that are sequentially stacked. The top electrode layer 106 of the first perovskite sub - battery 110 includes a first extension portion. The first extension portion sequentially penetrates through the second charge transport layer 105, the perovskite absorption layer 104, and the first charge transport layer 103, and contacts the bottom electrode layer 102 in the adjacent second perovskite sub - battery 120, so that the first perovskite sub - battery 110 is connected in series with the adjacent second perovskite sub - battery 120. The top electrode layer 106 of the second perovskite sub - battery 120 includes a second extension portion. The second extension portion sequentially penetrates through the second charge transport layer 105, the perovskite absorption layer 104, and the first charge transport layer 103, and contacts the bottom electrode layer 102 of the adjacent second perovskite sub - battery 120 on the outer side, so that the two adjacent second perovskite sub - batteries 120 are connected in series. Thus, internal series connection between adjacent sub - batteries in a single perovskite battery component unit 100 can be realized, and series connection between adjacent sub - batteries can be achieved without forming external connection lines externally, thereby simplifying the manufacturing of the perovskite battery component and reducing the cost of the perovskite battery component. The first parallel electrode 500 is connected to the bottom electrode layer 102 at the center position of the first perovskite sub - battery 110. A hole can be drilled at the center of the base layer 101. The first parallel electrode 500 at the center is connected to the bottom electrode layer and led out from the hole in the base layer 101. In the preparation method, a hole can be drilled in the base layer 101, and the first parallel electrode 500 at the center is pre - embedded, and then each film layer of the perovskite battery is prepared. The second parallel electrode 400 is connected to the top electrode layer 106 of the second perovskite sub - battery 120 that is farthest from the center.

[0036] According to some further specific embodiments of the present utility model, with reference to the attached Figure 3, both the first perovskite sub-cell 110 and the second perovskite sub-cell 120 include: a base layer 101, a bottom electrode layer 102, a first charge transport layer 103, a perovskite absorption layer 104, a second charge transport layer 105, and a top electrode layer 106 that are sequentially stacked. The top electrode layer 106 of the first perovskite sub-cell 110 does not include a first extension portion. The top electrode layer 106 of the second perovskite sub-cell 120 adjacent to the first perovskite sub-cell 110 includes a second extension portion. The second extension portion sequentially penetrates through the second charge transport layer 105, the perovskite absorption layer 104, and the first charge transport layer 103, and contacts the bottom electrode layer 102 in the adjacent first perovskite sub-cell 110, so as to achieve series connection between the first perovskite sub-cell 110 and the adjacent second perovskite sub-cell 120. The top electrode layers 106 of the other second perovskite sub-cells 120 also include second extension portions. The second extension portions sequentially penetrate through the second charge transport layer 105, the perovskite absorption layer 104, and the first charge transport layer 103, and contact the bottom electrode layer 102 of the adjacent second perovskite sub-cell 120 on the inner side, so as to achieve series connection between the adjacent two second perovskite sub-cells 120. Thus, internal series connection between adjacent sub-cells in a single perovskite battery module unit 100 can be realized, and series connection between adjacent sub-cells can be achieved without forming external connection lines externally, thereby simplifying the manufacturing of the perovskite battery module and reducing the cost of the perovskite battery module. The first parallel electrode 500 is connected to the top electrode layer 106 at the center position of the first perovskite sub-cell 110, for example, by using a conductive tape for bonding. The second parallel electrode 400 is connected to the bottom electrode layer 102 of the second perovskite sub-cell 120 away from the center position. There are various ways to lead out the first parallel electrode 500, and the present application does not make specific limitations. For example, holes can be drilled at the position corresponding to the center of the backplane glass and the component, and the first parallel electrode 500 at the center can directly pass through the holes; insulating materials can also be covered on the lead-out electrode, and the lead-out electrode can be extended along the surface of the battery module to the edge of the battery module.

[0037] According to some further specific embodiments of the present invention, referring to the attached Figure 2 , a part of the first charge transport layer 103 of the first perovskite sub-cell 110 penetrates through the bottom electrode layer 102 to the base layer 101, so as to separate the bottom electrode layer 102 of the first perovskite sub-cell 110 from the bottom electrode layer 102 of the adjacent second perovskite sub-cell 120. A part of the first charge transport layer 103 of the second perovskite sub-cell 120 penetrates through the bottom electrode layer 102 to the base layer 101, so as to separate the bottom electrode layers 102 of the adjacent two second perovskite sub-cells 120, so as to form different sub-cells.

[0038] According to some further specific embodiments of the present invention, referring to the attached Figure 2, an isolation groove 300 is provided between the adjacent first perovskite sub-cell 110 and the second perovskite sub-cell 120, and between two adjacent second perovskite sub-cells 120. The isolation groove 300 penetrates from the top electrode layer 106 to the bottom electrode layer 102, so as to separate the top electrode layer 106, the second charge transport layer 105, the perovskite absorption layer 104 (PVSK), and the first charge transport layer 103 of the first perovskite sub-cell 110 and the adjacent second perovskite sub-cell 120. At the same time, the top electrode layer 106, the second charge transport layer 105, the perovskite absorption layer 104, and the first charge transport layer 103 of two adjacent second perovskite sub-cells 120 are separated to form different sub-cells.

[0039] According to some further specific embodiments of the present invention, referring to the attached Figure 1 , an insulating groove 200 is provided between two adjacent perovskite battery module units 100. The insulating groove 200 penetrates from the top electrode layer 106 to the base layer 101, so as to separate two adjacent perovskite battery module units 100 to form different perovskite battery module units 100.

[0040] In the embodiments of the present invention, the specific types of the above-mentioned first perovskite sub-cell 110 and the second perovskite sub-cell 120 are not particularly limited. It can be a PIN structure battery or an NIP structure battery. When the above-mentioned first perovskite sub-cell 110 and the second perovskite sub-cell 120 are PIN structure batteries, the above-mentioned first charge transport layer 103 is a hole transport layer (HTL), and the above-mentioned second charge transport layer 105 is an electron transport layer (ETL). When the above-mentioned first perovskite sub-cell 110 and the second perovskite sub-cell 120 are NIP structure batteries, the above-mentioned first charge transport layer 103 is an electron transport layer (ETL), and the second charge transport layer 105 is a hole transport layer (HTL).

[0041] According to some further specific embodiments of the present invention, the cross-sectional areas of the first perovskite sub-cell 110 and multiple second perovskite sub-cells 120 in the same perovskite battery module unit 100 are equal, thereby ensuring that the perovskite battery module unit 100 outputs the maximum current and improving the power generation efficiency of the perovskite battery module. When the areas of all sub-cells in the same perovskite battery module unit 100 are equal, the light-receiving areas of all sub-cells are equal, so that the output currents of all sub-cells are equal, thereby ensuring that the perovskite battery module unit 100 outputs the maximum current. It can be understood that when the output currents of different sub-cells are different, the minimum output current among all sub-cells is the output current of the perovskite battery module unit 100.

[0042] Set the area of a single sub-cell to a fixed value A, then the areas of each sub-cell satisfy the following formula:

[0043] A = πr1 2 = πr2 2 - π(r1 + r d ) 2 = … = πr n 2 - π(r n-1 + r d ) 2

[0044] Reference appendix Figure 2 , r d is the dead zone width. Assume that the dead zone width of each sub - cell is r d . r1 is the radius of the circle where the first perovskite sub - cell 110 is located, r2 is the radius of the circle where the second perovskite sub - cell 120 adjacent to the first perovskite sub - cell 110 is located, and so on.

[0045] According to some other specific embodiments of the present utility model, the above - mentioned base layer 101 is a flexible base layer 101, thereby enabling the cut - ability of the perovskite battery module.

[0046] The preparation method of the above - mentioned perovskite battery module is as follows:

[0047] (1) On a circular FTO or ITO glass substrate with a bottom electrode layer, use a laser to etch out a P1 groove, and the P1 groove penetrates the bottom electrode layer.

[0048] (2) After cleaning the glass substrate etched with the P1 groove, sequentially prepare a first charge transport layer, a perovskite absorption layer, and a second charge transport layer on its bottom electrode layer, wherein the first charge transport layer extends and fills the P1 groove.

[0049] (3) On the basis of completing step (2), use a laser to etch out a set P2 groove on one side of the P1 groove, and the P2 groove sequentially penetrates the second charge transport layer, the perovskite absorption layer, and the first charge transport layer.

[0050] (4) On the basis of completing step (3), deposit a top electrode layer, wherein the top electrode layer extends and fills the P2 groove.

[0051] (5) On the basis of completing step (4), use a laser to etch out a set isolation groove on the side of the P2 groove far from the P1 groove to obtain sub - cells in different circular ring shapes.

[0052] (6) On the basis of completing step (5), use a laser to etch out an insulating groove in the radial direction of the module, and the insulating groove sequentially penetrates the top electrode layer, the second charge transport layer, the perovskite absorption layer, and the first charge transport layer to obtain multiple perovskite battery module units, and at the same time obtain sub - cells in different fan - shaped ring shapes.

[0053] (7) On the basis of completing step (6), use conductive tape to connect the perovskite battery components in parallel on the outermost side of the sector-shaped perovskite battery component unit.

[0054] For the above steps, laser can be directly applied to the film surface for etching, or laser can be transmitted through the transparent conductive substrate to act on the film surface for etching. For the above steps, glass can be used as the base layer, and rigid or flexible materials such as plastic, stainless steel mesh or Ni mesh can also be used as the base layer.

[0055] In the second aspect of the present invention, the present invention proposes an electrical device. According to the embodiments of the present invention, the electrical device has the perovskite battery component as described above. Thus, the electrical device has all the advantages of the perovskite battery component, which will not be elaborated here.

[0056] Specifically, the electrical device may include lighting elements, display elements, mobile devices, etc., and specifically may include street lamps, signal indicators, insecticidal lamps, electric fans, electric toys, power tools, battery cars, electric vehicles, ships, spacecrafts, etc. Among them, the electric toys may include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys and electric plane toys, etc.; the spacecrafts may include airplanes, rockets, space shuttles and spaceships, etc.; the photovoltaic power generation system may include large-scale ground photovoltaic power generation systems, distributed photovoltaic power generation and building-integrated photovoltaic power generation systems, etc.

[0057] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A perovskite solar cell module, characterized in that, The cross-section of the perovskite solar cell module is circular, and the perovskite solar cell module includes: A plurality of perovskite solar cell module units, the cross-section of each perovskite solar cell module unit is fan-shaped, each perovskite solar cell module unit respectively includes a first perovskite sub-cell and a second perovskite sub-cell, the cross-section of the first perovskite sub-cell is fan-shaped, the cross-section of the second perovskite sub-cell is in the shape of a fan ring, and the second perovskite sub-cells are arranged in sequence along the radial direction away from the center of the circle on the outside of the first perovskite sub-cell; in the same perovskite solar cell module unit, the adjacent first perovskite sub-cell and the second perovskite sub-cell are connected in series, and the adjacent two second perovskite sub-cells are connected in series.

2. The perovskite battery component according to claim 1, wherein The areas of the cross-sections of all the first perovskite sub-cells and all the second perovskite sub-cells in the plurality of perovskite solar cell module units are equal.

3. The perovskite battery component according to claim 1, wherein The plurality of perovskite solar cell module units are connected in parallel; The perovskite solar cell module further includes: a first parallel electrode and a second parallel electrode, the first parallel electrode is arranged at the center position of the perovskite solar cell module, and the second parallel electrode is arranged at the circumferential position away from the center of the circle of the perovskite solar cell module unit.

4. The perovskite battery component according to claim 3, characterized in that, Both the first perovskite sub-cell and the second perovskite sub-cell include: a base layer, a bottom electrode layer, a first charge transport layer, a perovskite absorption layer, a second charge transport layer, and a top electrode layer that are sequentially stacked; The top electrode layer of the first perovskite sub-cell includes a first extension portion, and the first extension portion sequentially penetrates through the second charge transport layer, the perovskite absorption layer, and the first charge transport layer, and contacts the bottom electrode layer in the adjacent second perovskite sub-cell, so that the first perovskite sub-cell and the adjacent second perovskite sub-cell are connected in series; The top electrode layer of the second perovskite sub-cell includes a second extension portion, and the second extension portion sequentially penetrates through the second charge transport layer, the perovskite absorption layer, and the first charge transport layer, and contacts the bottom electrode layer in the adjacent outer second perovskite sub-cell, so that the adjacent two second perovskite sub-cells are connected in series; The first parallel electrode is connected to the bottom electrode layer at the center position of the first perovskite sub-cell, and the second parallel electrode is connected to the top electrode layer at the position away from the center of the circle of the second perovskite sub-cell.

5. The perovskite battery assembly according to claim 3, wherein Both the first perovskite sub-cell and the second perovskite sub-cell include: a base layer, a bottom electrode layer, a first charge transport layer, a perovskite absorption layer, a second charge transport layer, and a top electrode layer that are sequentially stacked; The top electrode layer of the second perovskite sub-cell includes a second extension portion, and the second extension portion sequentially penetrates through the second charge transport layer, the perovskite absorption layer, and the first charge transport layer, and contacts the bottom electrode layer in the adjacent inner first perovskite sub-cell or the second perovskite sub-cell, so as to be connected in series with the adjacent inner first perovskite sub-cell or the second perovskite sub-cell; The first parallel electrode is connected to the top electrode layer at the center position of the first perovskite sub-cell, and the second parallel electrode is connected to the bottom electrode layer at a position away from the center of the second perovskite sub-cell.

6. The perovskite battery component according to claim 4 or 5, characterized in that, Part of the first charge transport layer of the first perovskite sub-cell penetrates through the bottom electrode layer to the base layer, and part of the first charge transport layer of the second perovskite sub-cell penetrates through the bottom electrode layer to the base layer; And / or, isolation grooves are provided between the adjacent first perovskite sub-cell and the second perovskite sub-cell, and between two adjacent second perovskite sub-cells, and the isolation grooves penetrate from the top electrode layer to the bottom electrode layer.

7. The perovskite battery assembly according to claim 4 or 5, characterized in that, Insulation grooves are provided between two adjacent perovskite battery component units, and the insulation grooves penetrate from the top electrode layer to the base layer; The first charge transport layer is a hole transport layer, and the second charge transport layer is an electron transport layer; or, the first charge transport layer is an electron transport layer, and the second charge transport layer is a hole transport layer; And / or, the base layer is a flexible base layer; And / or, the shape of the second parallel electrode is annular.

8. The perovskite battery component according to claim 1, characterized in that, The shape and size of each perovskite battery component unit are the same.

9. The perovskite battery component according to claim 8, wherein The number of the perovskite battery component units is an even number.

10. An electrical device, characterized in that, A perovskite battery component according to any one of claims 1 to 9.

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