Perovskite battery assembly, photovoltaic assembly and electric equipment

Abstract

The utility model discloses a perovskite battery assembly, a photovoltaic assembly and electric equipment, and relates to the technical field of batteries. The perovskite battery assembly comprises a first substrate, a perovskite battery function layer and a second substrate. At least partial area of the perovskite cell function layer is provided with a target lineation, and the target lineation can enable the perovskite cell assembly to achieve a pattern effect. Therefore, the pattern effect can be achieved without attaching a pattern film to the outside of the perovskite battery assembly, the problems of wrinkles, bubbles, discoloration and aging of the externally attached pattern film are avoided, and the pattern effect of the perovskite battery assembly can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a perovskite battery assembly, a photovoltaic assembly and an electrical equipment. BACKGROUND

[0002] With the development of modern industry, global energy shortage and environmental pollution problems are increasingly prominent, and solar cells as an ideal renewable energy are attracting more and more attention.

[0003] In the related art, perovskite batteries have high photoelectric conversion efficiency, low cost, and environmentally friendly use of materials, and are gradually becoming a popular solar cell and a key development direction of photovoltaic cells. Among them, the perovskite battery assembly includes a first substrate, a perovskite battery functional layer, and a second substrate which are stacked in sequence. In order to improve the aesthetics of the perovskite battery assembly, a thin film with a picture pattern is usually attached to the outside of the perovskite battery assembly, so that the perovskite battery realizes a pattern effect.

[0004] However, the external attachment of the thin film is prone to wrinkles, bubbles, discoloration and aging of the thin film, thereby resulting in poor pattern effect of the perovskite battery assembly. Invention content

[0005] The present application provides a perovskite battery assembly, a photovoltaic assembly and an electrical equipment, which can solve the problem of poor pattern effect of the perovskite battery assembly in the related art. The technical solution is as follows:

[0006] On the one hand, a perovskite battery assembly is provided, which includes:

[0007] a first substrate;

[0008] a perovskite battery functional layer, the perovskite battery functional layer being located on one side of the first substrate, at least a part of the perovskite battery functional layer including a target scribe line, the target scribe line being used to distinguish a pattern area and a non-pattern area of the perovskite battery functional layer, the pattern area and the non-pattern area being used to make the perovskite battery assembly realize a pattern effect;

[0009] a second substrate, the second substrate being located on a side of the perovskite battery functional layer away from the first substrate.

[0010] Optionally, the target scribe line surrounds the pattern area, and the target scribe line is located between the pattern area and the non-pattern area.

[0011] The target scribe line is close to one side of the pattern region and includes the perovskite battery functional layer, and the area where the target scribe line is located and the side of the target scribe line close to the non-pattern region do not include the perovskite battery functional layer.

[0012] Optionally, the area where the target scribe line is located is the pattern region, and the area other than the area where the target scribe line is located in the perovskite battery functional layer is the non-pattern region.

[0013] The pattern region does not include the perovskite battery functional layer, and the non-pattern region includes the perovskite battery functional layer.

[0014] Optionally, the perovskite battery assembly includes a first region and a second region, and the perovskite battery functional layer includes a first perovskite battery functional layer part located in the first region and a second perovskite battery functional layer part located in the second region.

[0015] The target scribe line includes a first sub-scribe line located in the first region, and the first sub-scribe line is used to distinguish a first pattern region and a first non-pattern region of the first perovskite battery part.

[0016] The first pattern region and the first non-pattern region are used to enable the perovskite battery assembly to achieve a pattern effect of the first region.

[0017] Optionally, the target scribe line further includes a second sub-scribe line located in the second region, and the second sub-scribe line is used to distinguish a second pattern region and a second non-pattern region of the second perovskite battery functional layer part.

[0018] The second pattern region and the second non-pattern region are used to enable the perovskite battery assembly to achieve a pattern effect of the second region, and the scribing manner of the second sub-scribe line is different from the scribing manner of the first sub-scribe line.

[0019] Optionally, in the first region, the first sub-scribe line is located between the first pattern region and the first non-pattern region, the side of the first sub-scribe line close to the first pattern region includes the first perovskite battery functional layer part, and the area where the first sub-scribe line is located and the side of the first sub-scribe line close to the second non-pattern region do not include the first perovskite battery functional layer part.

[0020] In the second region, the area where the second sub-scribe line is located is the second pattern region, and the area other than the area where the second sub-scribe line is located in the second perovskite battery functional layer part is the second non-pattern region; the second pattern region does not include the second perovskite battery functional layer part, and the second non-pattern region includes the second perovskite battery functional layer part.

[0021] Optionally, the first region and the second region are arranged along a target direction; or one of the first region and the second region surrounds the other region.

[0022] Optionally, the perovskite battery functional layer comprises a first electrode layer, a perovskite light-absorbing layer and a second electrode layer which are stacked in sequence.

[0023] The target scribe line at least penetrates the second electrode layer and the perovskite light-absorbing layer.

[0024] Optionally, the target scribe line also penetrates the first electrode layer.

[0025] Optionally, the perovskite battery functional layer comprises a plurality of battery units which are electrically connected in sequence, the battery unit comprising a first electrode located at the first electrode layer, a light-absorbing pattern located at the perovskite light-absorbing layer, and a second electrode located at the second electrode layer.

[0026] In the two adjacent battery units, the first electrode of the first battery unit and the second electrode of the second battery unit have overlapping projections on the first substrate, the second battery unit has a connecting opening, and the second electrode of the second battery unit is connected to the first electrode of the first battery unit through the connecting opening.

[0027] Optionally, the perovskite battery assembly comprises a glue film, a wire and an encapsulation layer.

[0028] The glue film is located between the perovskite battery functional layer and the second substrate, the wire is located on the side of the perovskite battery functional layer, the projection of the wire on the first substrate and the projection of the perovskite battery functional layer on the first substrate are spaced apart, the encapsulation layer is located between the first substrate and the second substrate and surrounds the perovskite battery functional layer, the glue film and the wire.

[0029] In another aspect, a method for manufacturing a perovskite battery assembly is provided, the method comprising:

[0030] forming a perovskite battery functional film on the first substrate;

[0031] performing a patterning process on the perovskite battery functional film to obtain a perovskite battery functional layer, at least part of the perovskite battery functional layer comprising a target scribe line, the target scribe line being used to distinguish a pattern region and a non-pattern region of the perovskite battery functional layer, the pattern region and the non-pattern region being used to achieve a pattern effect of the perovskite battery assembly;

[0032] A second substrate is formed on a side of the perovskite battery functional layer away from the first substrate.

[0033] Optionally, the patterning process of the perovskite battery functional film comprises the following steps:

[0034] Step 1: forming a first electrode film and etching the first electrode film to obtain a plurality of first electrodes of electrode units, the first electrodes of electrode units being arranged at intervals;

[0035] Step 2: forming a perovskite light-absorbing film and etching the perovskite light-absorbing film to obtain a connection opening;

[0036] Step 3: forming a second electrode film, the second electrode film being connected through the connection opening and the first electrode exposed by the connection opening;

[0037] Step 4: etching the second electrode film and the perovskite light-absorbing film to obtain a plurality of light-absorbing patterns of electrode units and second electrodes, in adjacent two battery units, the orthographic projection of the first electrode of the first battery unit on the first substrate and the orthographic projection of the second electrode of the second battery unit on the first substrate overlap, the connection opening of the second battery unit exposes at least part of the first electrode of the first battery unit, and the second electrode of the second battery unit is connected through the connection opening and the first electrode of the first battery unit;

[0038] Step 5: processing the perovskite battery functional film using a target scribe line to obtain a patterned region and a non-patterned region;

[0039] Step 6: performing a semi-clearing process on the perovskite battery functional film, the semi-clearing process referring to removing the perovskite light-absorbing film and the second electrode film in a first edge region of the perovskite battery functional film;

[0040] Step 7: performing a clearing process on the perovskite battery functional film, the clearing process referring to removing the first electrode film in a second edge region of the perovskite battery functional film, the second edge region being a partial region of the first edge region away from the middle part of the perovskite battery functional film;

[0041] Optionally, the step sequence of the patterning process of the perovskite battery functional film is Step 1, Step 2, Step 3, Step 4, Step 5, Step 6 and Step 7 in order; or,

[0042] The step sequence of the patterning process of the perovskite battery functional film is Step 1, Step 2, Step 3, Step 4, Step 6, Step 5 and Step 7 in order; or,

[0043] The step sequence when the perovskite battery functional film is patterned is: step 1, step 2, step 3, step 4, step 6, step 7, and step 5.

[0044] In another aspect, a photovoltaic module is provided, comprising: a plurality of perovskite battery modules as described in the above aspect;

[0045] The plurality of perovskite battery modules are connected in series or connected in parallel.

[0046] In another aspect, a power consuming device is provided, comprising: a power consuming apparatus, and a perovskite battery module as described above;

[0047] The perovskite battery module is connected to the power consuming apparatus, and the perovskite battery module is used to supply power to the power consuming apparatus.

[0048] The technical scheme provided by the present application has at least the following beneficial effects:

[0049] The present application provides a perovskite battery module, a photovoltaic module, and a power consuming device. The perovskite battery module comprises a first substrate, a perovskite battery functional layer, and a second substrate. At least part of the perovskite battery functional layer is designed with a target scribe line, which can achieve a pattern effect for the perovskite battery module. Thus, it is not necessary to attach a pattern film to the outside of the perovskite battery module to achieve a pattern effect, thereby avoiding problems such as wrinkles, bubbles, discoloration, and aging of the externally attached pattern film, and ensuring the pattern effect of the perovskite battery module. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0051] Figure 1 is a cross-sectional schematic view of a perovskite battery module provided by an embodiment of the present application;

[0052] Figure 2 is a top view of a perovskite battery module provided by an embodiment of the present application;

[0053] Figure 3 is a cross-sectional schematic view of another perovskite battery module provided by an embodiment of the present application;

[0054] Figure 4 is an effect schematic view of a perovskite battery module provided by an embodiment of the present application;

[0055] Figure 5 is a cross-sectional schematic view of still another perovskite battery assembly provided by embodiments of the present application;

[0056] Figure 6 is a top view of another perovskite battery assembly provided by embodiments of the present application;

[0057] Figure 7 is an effect schematic view of another perovskite battery assembly provided by embodiments of the present application;

[0058] Figure 8 is a top view of still another perovskite battery assembly provided by embodiments of the present application;

[0059] Figure 9 is Figure 8 a cross-sectional schematic view along the CC' direction;

[0060] Figure 10 is Figure 8 a cross-sectional schematic view along the DD' direction;

[0061] Figure 11 is a top view of still another perovskite battery assembly provided by embodiments of the present application;

[0062] Figure 12 is Figure 11 a cross-sectional view along the EE' direction;

[0063] Figure 13 is Figure 11 a cross-sectional view along the FF' direction;

[0064] Figure 14 is an effect schematic view of still another perovskite battery assembly provided by embodiments of the present application;

[0065] Figure 15 is an effect schematic view of still another perovskite battery assembly provided by embodiments of the present application;

[0066] Figure 16 is a top view of still another perovskite battery assembly provided by embodiments of the present application;

[0067] Figure 17 is Figure 16 a cross-sectional view along the GG' direction;

[0068] Figure 18 is an effect schematic view of still another perovskite battery assembly provided by embodiments of the present application;

[0069] Figure 19 is a top view of still another perovskite battery assembly provided by embodiments of the present application;

[0070] Figure 20 is Figure 19 a sectional view along the direction of HH';

[0071] Figure 21 is a top view of still another perovskite battery assembly provided by an embodiment of the present application;

[0072] Figure 22 is Figure 20 a sectional view along the direction of II';

[0073] Figure 23 is a top view of still another perovskite battery assembly provided by an embodiment of the present application;

[0074] Figure 24 is a top view of still another perovskite battery assembly provided by an embodiment of the present application;

[0075] Figure 25 is Figure 24 a sectional view along the direction of JJ';

[0076] Figure 26 is a top view of still another perovskite battery assembly provided by an embodiment of the present application;

[0077] Figure 27 is a flow chart of a method for manufacturing a perovskite battery assembly provided by an embodiment of the present application;

[0078] Figure 28 is a schematic diagram of forming a first electrode thin film on a first substrate provided by an embodiment of the present application;

[0079] Figure 29 is a schematic diagram of etching the first electrode thin film to form a plurality of first electrodes provided by an embodiment of the present application;

[0080] Figure 30 is a schematic diagram of forming a hole transport thin film, a perovskite light absorption thin film and an electron transport thin film provided by an embodiment of the present application;

[0081] Figure 31 is a schematic diagram of etching the hole transport thin film, the perovskite light absorption thin film and the electron transport thin film to form a connecting opening provided by an embodiment of the present application;

[0082] Figure 32 is a schematic diagram of forming a second electrode thin film provided by an embodiment of the present application;

[0083] Figure 33 is a schematic diagram of forming a plurality of second electrodes provided by an embodiment of the present application;

[0084] Figure 34 is a schematic diagram of forming a target scribe line provided by an embodiment of the present application;

[0085] Figure 35 is a semi-clear edge schematic diagram provided by an embodiment of the present application;

[0086] Figure 36 is a clear edge schematic diagram provided by an embodiment of the present application;

[0087] Figure 37 is a schematic diagram of forming a first electrode thin film on a first substrate provided by an embodiment of the present application;

[0088] Figure 38 is a schematic diagram of etching the first electrode thin film to form a plurality of first electrodes provided by an embodiment of the present application;

[0089] Figure 39 is a schematic diagram of forming a hole transport thin film, a perovskite light absorption thin film and an electron transport thin film provided by an embodiment of the present application;

[0090] Figure 40 is a schematic diagram of etching the hole transport thin film, the perovskite light absorption thin film and the electron transport thin film to form a connection opening provided by an embodiment of the present application;

[0091] Figure 41 is a schematic diagram of forming a second electrode thin film provided by an embodiment of the present application;

[0092] Figure 42 is a schematic diagram of forming a plurality of second electrodes provided by an embodiment of the present application;

[0093] Figure 43 is a semi-clear edge schematic diagram provided by an embodiment of the present application;

[0094] Figure 44 is a schematic diagram of forming a target scribe line provided by an embodiment of the present application;

[0095] Figure 45 is a clear edge schematic diagram provided by an embodiment of the present application;

[0096] Figure 46 is a schematic diagram of forming a first electrode thin film on a first substrate provided by an embodiment of the present application;

[0097] Figure 47 is a schematic diagram of etching the first electrode thin film to form a plurality of first electrodes provided by an embodiment of the present application;

[0098] Figure 48 is a schematic diagram of forming a hole transport thin film, a perovskite light absorption thin film and an electron transport thin film provided by an embodiment of the present application;

[0099] Figure 49is a schematic diagram of etching a hole transport thin film, a perovskite light absorption thin film and an electron transport thin film to form a connection opening provided by an embodiment of the present application;

[0100] Figure 50 is a schematic diagram of forming a second electrode thin film provided by an embodiment of the present application;

[0101] Figure 51 is a schematic diagram of forming a plurality of second electrodes provided by an embodiment of the present application;

[0102] Figure 52 is a schematic diagram of semi-clearing an edge provided by an embodiment of the present application;

[0103] Figure 53 is a schematic diagram of clearing an edge provided by an embodiment of the present application;

[0104] Figure 54 is a schematic diagram of forming a target scribe line provided by an embodiment of the present application;

[0105] Figure 55 is a schematic diagram of forming a first electrode thin film on a first substrate provided by an embodiment of the present application;

[0106] Figure 56 is a schematic diagram of forming a hole transport thin film, a perovskite light absorption thin film, an electron transport thin film and a second electrode thin film provided by an embodiment of the present application;

[0107] Figure 57 is a schematic diagram of P3 scribe line or P4 semi-clearing an edge provided by an embodiment of the present application;

[0108] Figure 58 is a schematic diagram of clearing an edge provided by an embodiment of the present application. DETAILED DESCRIPTION

[0109] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0110] Figure 1 is a schematic diagram of a cross section of a perovskite battery assembly provided by an embodiment of the present application. Referring to Figure 1 , the perovskite battery assembly 100 includes a first substrate 101, a perovskite battery functional layer 102 and a second substrate 103. The perovskite battery functional layer 102 is located on one side of the first substrate 101, and the second substrate 103 is located on a side of the perovskite battery functional layer 102 away from the first substrate 101. That is, the perovskite battery functional layer 102 is located between the first substrate 101 and the second substrate 103. Optionally, the first substrate 101 and the second substrate 103 can be glass substrates.

[0111] Figure 2 is Figure 1 is a plan view of the perovskite battery assembly. Figure 1 is Figure 2 is a sectional view along the direction of AA'. Referring to Figure 1 and Figure 2 , at least a partial region of the perovskite battery functional layer 102 includes a target scribe line m. The target scribe line m is used to distinguish a pattern region 102a and a non-pattern region 102b of the perovskite battery functional layer 102. The pattern region 102a and the non-pattern region 102b are used to make the perovskite battery assembly 100 achieve a pattern effect.

[0112] In the embodiments of the present application, the perovskite battery functional layer 102 can form an electric current when light is irradiated, can achieve a battery function, and at least a partial region of the perovskite battery functional layer 102 is designed with a target scribe line m, which can achieve a pattern effect. Thus, it is not necessary to attach a pattern film outside the perovskite battery assembly 100 to achieve a pattern effect, thereby avoiding problems such as wrinkles, bubbles, discoloration and aging of the externally attached pattern film, and the pattern effect of the perovskite battery assembly 100 can be ensured.

[0113] In summary, the embodiments of the present application provide a perovskite battery assembly, which includes a first substrate, a perovskite battery functional layer and a second substrate. At least a partial region of the perovskite battery functional layer is designed with a target scribe line, which can make the perovskite battery assembly achieve a pattern effect. Thus, it is not necessary to attach a pattern film outside the perovskite battery assembly to achieve a pattern effect, thereby avoiding problems such as wrinkles, bubbles, discoloration and aging of the externally attached pattern film, and the pattern effect of the perovskite battery assembly can be ensured.

[0114] In the embodiments of the present application, referring to Figure 1 , the perovskite battery functional layer 102 includes a first electrode layer 1021, a perovskite light-absorbing layer 1022 and a second electrode layer 1023 which are sequentially stacked away from the first substrate 101. The target scribe line m at least penetrates the second electrode layer 1023 and the perovskite light-absorbing layer 1022. For example Figure 1 , the target scribe line m penetrates the second electrode layer 1023 and the perovskite light-absorbing layer 1022. Alternatively Figure 3 , the target scribe line m penetrates the second electrode layer 1023, the perovskite light-absorbing layer 1022 and the first electrode layer 1021.

[0115] Optionally, the perovskite battery functional layer 102 further includes a hole transport layer 1024 between the first electrode layer 1021 and the perovskite light-absorbing layer 1022, and an electron transport layer 1025 between the second electrode layer 1023 and the perovskite light-absorbing layer 1022. The first electrode layer 1021 can be an anode layer, and the second electrode layer 1023 can be a cathode layer.

[0116] When light irradiates the perovskite light-absorbing layer 1022, photons are absorbed and form electron-hole pairs. These electrons and holes rapidly separate inside the perovskite light-absorbing layer 1022, and the electrons are transported to the cathode layer through the electron transport layer 1025, and the holes are transported to the anode layer through the hole transport layer 1024. As the electrons and holes accumulate at the anode layer and the cathode layer, an electromotive force is generated. When the perovskite battery assembly 100 is connected to an external electrical device, a photoelectric current output is formed, so that the perovskite battery assembly 100 can power the electrical device.

[0117] Optionally, in the case where the perovskite battery functional layer 102 includes the hole transport layer 1024 and the electron transport layer 1025, the target scribe line m can also pass through the hole transport layer 1024 and the electron transport layer 1025. For example Figure 1 In this case, the target scribe line m passes through the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024.

[0118] As a first optional implementation, referring to Figure 1 and Figure 3 , the target scribe line m surrounds the pattern area 102a, and the target scribe line m is located between the pattern area 102a and the non-pattern area 102b. The side of the target scribe line m close to the pattern area 102a includes the perovskite battery functional layer 102, and the area where the target scribe line m is located and the side of the target scribe line m close to the non-pattern area 102b do not include the perovskite battery functional layer 102. In this case, the perovskite battery functional layer 102 only retains the part located in the pattern area 102a, and other areas can be removed by laser.

[0119] For example, referring to Figure 1 , the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 in the perovskite battery functional layer 102 are only provided in the pattern area 102a, and the first electrode layer 1021 in the perovskite battery functional layer 102 can be provided in the pattern area 102a, or in the area where the target scribe line m is located and the non-pattern area 102b. That is, only the first electrode layer 1021 is retained in the area where the target scribe line m is located and the non-pattern area 102b, and the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 above can be removed by laser scribing.

[0120] In the embodiment of the present application, the pattern area 102a can be used for power generation because the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 are reserved in the pattern area 102a. For the area where the target scribe line m is located and the non-pattern area 102b, although the first electrode layer 1021 is reserved, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 are removed, so the area where the target scribe line m is located and the non-pattern area 102b cannot be used for power generation. Referring to Figure 4 , the black area can be the pattern area 102a, and the white area includes the target scribe line m and the non-pattern area 102b. That is, Figure 4 , the black area can be used for power generation, and the white area cannot be used for power generation.

[0121] In addition, because the area where the target scribe line m is located and the non-pattern area 102b remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the structure of the pattern area 102a is obviously different, so the pattern effect of the perovskite battery assembly can be better.

[0122] As a second optional implementation, referring to Figure 5 and Figure 6 , the area where the target scribe line m is located is the pattern area 102a. The other areas of the perovskite battery functional layer 102 except the area where the target scribe line m is located are the non-pattern area 102b. Among them, the pattern area 102a does not include the perovskite battery functional layer 102, and the non-pattern area 102b includes the perovskite battery functional layer 102. In this case, the perovskite battery functional layer 102 retains part of the other areas except the area where the target scribe line m is located, and the part of the area where the target scribe line m is located can be removed by laser. Figure 5 is Figure 6 a cross-sectional view along the direction of BB'.

[0123] For example, referring to Figure 5 , in the area where the target scribe line m is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 in the perovskite battery functional layer 102 are removed, and only the first electrode layer 1021 is reserved. In the other areas except the area where the target scribe line m is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 in the perovskite battery functional layer 102 are reserved.

[0124] In the embodiment of the present application, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 are reserved in the areas other than the area where the target scribe line m is located, so the areas other than the area where the target scribe line m is located can be used for power generation. For the area where the target scribe line m is located, the first electrode layer 1021 is reserved, but the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 are removed, so the area where the target scribe line m is located cannot be used for power generation. Referring to Figure 7 , the black area can be the non-pattern area 102b, the white area can be the target scribe line m, and the white area can be the pattern area 102a. That is, Figure 7 , the black area can be used for power generation, and the white area cannot be used for power generation.

[0125] In addition, since the area where the target scribe line m is located is relatively small, and the areas other than the area where the target scribe line m is located are relatively large, the area of the perovskite battery assembly in this implementation mode that can be used for power generation is relatively large, and the power generation power and the photoelectric conversion efficiency can be improved.

[0126] In addition, since the area where the target scribe line m is located (the pattern area 102a) removes the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the difference between the structure of the non-pattern area 102b is relatively obvious, so the pattern effect of the perovskite battery assembly 100 can be realized.

[0127] As a third optional implementation mode, referring to Figures 8 to 13 , the perovskite battery assembly 100 includes a first area 100a and a second area 100b. The perovskite battery functional layer 102 includes a first perovskite battery functional layer part 102-1 located in the first area 100a and a second perovskite battery functional layer part 102-2 located in the second area 100b.

[0128] The target scribe line m includes a first sub-scribe line m1 located in the first area 100a, and the first sub-scribe line m1 is used to distinguish a first pattern area 102a1 and a first non-pattern area 102b1 of the first perovskite battery functional layer part 102-1. The first pattern area 102a1 and the first non-pattern area 102b1 are used to make the perovskite battery assembly 100 realize the pattern effect of the first area 100a.

[0129] Optionally, the realization of the pattern effect of the first area 100a can adopt any one of the following two schemes.

[0130] Scheme one: referring to Figure 8, the first sub-scribe line m1 surrounds the first pattern region 102a1, and the first sub-scribe line m1 is located between the first pattern region 102a1 and the first non-pattern region 102b1. The side of the first sub-scribe line m1 close to the first pattern region 102a1 includes the first perovskite battery functional layer part 102-1, and the region where the first sub-scribe line m1 is located and the side of the first sub-scribe line m1 close to the non-pattern region 102b1 do not include the first perovskite battery functional layer part 102-1. In this case, in the first region 100a, the first perovskite battery functional layer part 102-1 only retains the part located in the first pattern region 102a1, and other regions can be removed by laser.

[0131] For example, referring to Figure 9 , the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 in the first perovskite battery functional layer part 102-1 are only arranged in the first pattern region 102a1, and the first electrode layer 1021 in the first perovskite battery functional layer part 102-1 can be arranged in the first pattern region 102a1 or in the region where the first sub-scribe line m1 is located and the first non-pattern region 102b1. That is, in the region where the first sub-scribe line m1 is located and the first non-pattern region 102b1, only the first electrode layer 1021 is retained, and the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 above can be removed by laser scribing.

[0132] Because the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024, and the first electrode layer 1021 of the first pattern region 102a1 are retained, the first pattern region 102a1 can be used for power generation. For the region where the first sub-scribe line m1 is located and the first non-pattern region 102b1, although the first electrode layer 1021 is retained, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 are removed, so the region where the first sub-scribe line m1 is located and the first non-pattern region 102b1 cannot be used for power generation. For example Figure 14 The black region of the first region 100a in the above example can be the first pattern region 102a1, and the white region includes the first sub-scribe line m1 and the first non-pattern region 102b1. That is, Figure 14 The black region in the above example can be used for power generation, and the white region cannot be used for power generation.

[0133] And, since the area where the first sub-dashed line m1 is located and the first non-pattern area 102b1 remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the difference of the structure of the first pattern area 102a1 is obvious, so that the perovskite battery 100 piece can have a better pattern effect in the first area 100a.

[0134] Scheme two: refer to Figure 11 , the area where the first sub-dashed line m1 is located is the first pattern area 102a1. The area other than the area where the first sub-dashed line m1 is located in the perovskite battery functional layer 102 is the first non-pattern area 102b1. Among them, the first pattern area 102a1 does not include the first perovskite battery functional layer part 102-1, and the first non-pattern area 102b1 includes the first perovskite battery functional layer part 102-1. In this case, the first perovskite battery functional layer part 102-1 retains the part of the area other than the area where the first sub-dashed line m1 is located, and the part of the area where the first sub-dashed line m1 is located can be removed by laser.

[0135] For example, refer to Figure 12 , in the area where the first sub-dashed line m1 is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 in the first perovskite battery functional layer part 102-1 are removed, only the first electrode layer 1021 is retained. In the area other than the area where the first sub-dashed line m1 is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 in the first perovskite battery functional layer part 102-1 are retained.

[0136] In the embodiments of the present application, since the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 in the area other than the area where the first sub-dashed line m1 is located are retained, the other area can be used for power generation. For the area where the first sub-dashed line m1 is located, although the first electrode layer 1021 is retained, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 are removed, so the area where the first sub-dashed line m1 is located cannot be used for power generation. For example Figure 15 The black area of the first area 100a in the above-mentioned embodiment can be the first non-pattern area 102a1, and the white area can be the first sub-dashed line m1, which is the first pattern area 102a1. That is, Figure 15 The black area in the above-mentioned embodiment can be used for power generation, and the white area cannot be used for power generation.

[0137] In addition, since the area of the region where the first sub-scribe line m1 is located is relatively small, and the area of the other regions except the region where the first sub-scribe line m1 is located is relatively large, the area of the region capable of generating electricity in the first region 100a of the perovskite battery assembly of this implementation is relatively large, and the power generation power and the photoelectric conversion efficiency can be improved.

[0138] In addition, since the region where the first sub-scribe line m1 is located (the first pattern region 102a1) removes the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024, the structure of the first non-pattern region 102b1 is relatively obvious, and thus the pattern effect of the perovskite battery assembly 100 can be achieved.

[0139] In the embodiments of the present application, with reference to Figures 8 to 13 , the target scribe line m further includes a second sub-scribe line m2 located in the second region 100b. The second sub-scribe line m2 is used to distinguish the second pattern region 102a2 and the second non-pattern region 102b2 of the second perovskite battery functional layer part 102-2. The second pattern region 102a2 and the second non-pattern region 102b2 are used to make the perovskite electroluminescent assembly 100 achieve the pattern effect of the second region 100b. The scribe line mode of the second sub-scribe line m2 is different from the scribe line mode of the first sub-scribe line m1. The scribe line mode of the first sub-scribe line m1 can include the modes of the above-mentioned scheme one and scheme two. The scribe line mode of the second sub-scribe line m2 can include the modes of the following scheme three and scheme four.

[0140] Scheme three: with reference to Figure 8 and Figure 10 , the region where the second sub-scribe line m2 is located is the second pattern region 102a2. The other regions of the second perovskite battery functional layer part 102-2 except the region where the second sub-scribe line m2 is located are the second non-pattern region 102b2. Among them, the second pattern region 102a2 does not include the second perovskite battery functional layer part 102-2, and the second non-pattern region 102b2 includes the second perovskite battery functional layer part 102-2. In this case, the second perovskite battery functional layer part 102-2 retains part of the other regions except the region where the second sub-scribe line m2 is located, and the part of the region where the second sub-scribe line m2 is located can be removed by laser.

[0141] For example, with reference to Figure 10In the area where the second sub-scribe line m2 is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 in the second perovskite battery functional layer part 102-2 are removed, and only the first electrode layer 1021 is reserved. In the areas other than the area where the second sub-scribe line m2 is located, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 in the second perovskite battery functional layer part 102-2 are reserved.

[0142] In the embodiment of the present application, since the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021 in the areas other than the area where the second sub-scribe line m2 is located are reserved, the areas can be used for power generation. For the area where the second sub-scribe line m2 is located, although the first electrode layer 1021 is reserved, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024 are removed, so the area where the second sub-scribe line m2 is located cannot be used for power generation. For example Figure 14 The black area in the second area 100b in the embodiment can be the second non-pattern area 102a2, the white area can be the second sub-scribe line m2, and the second pattern area 102a2. That is, Figure 15 The black area in the embodiment can be used for power generation, and the white area cannot be used for power generation.

[0143] In addition, since the area where the second sub-scribe line m2 is located is relatively small, and the areas other than the area where the second sub-scribe line m2 is located are relatively large, the area of the area in the second area 100b of the perovskite battery assembly in the implementation mode that can be used for power generation is relatively large, and the power generation power and the photoelectric conversion efficiency can be improved.

[0144] In addition, since the area where the second sub-scribe line m2 is located (the second pattern area 102a2) removes the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the difference between the structure of the second non-pattern area 102b2 is relatively obvious, so the pattern effect of the perovskite battery assembly 100 can be realized.

[0145] Scheme four: refer to Figure 11 and Figure 13, the second sub-scribe line m2 surrounds the second pattern region 102a2, and the second sub-scribe line m2 is located between the second pattern region 102a2 and the second non-pattern region 102b2. The second sub-scribe line m2 includes the second perovskite battery functional layer part 102-2 near one side of the second pattern region 102a2, and the region where the second sub-scribe line m2 is located and the side of the second sub-scribe line m2 near the non-pattern region 102b2 do not include the second perovskite battery functional layer part 102-2. In this case, in the first region 100a, the second perovskite battery functional layer part 102-2 only retains the part located in the second pattern region 102a2, and other regions can be removed by laser.

[0146] For example, referring to Figure 13 , the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 in the second perovskite battery functional layer part 102-2 are only provided in the first pattern region 102a1, and the first electrode layer 1021 in the second perovskite battery functional layer part 102-2 can be provided in the second pattern region 102a2 or in the region where the second sub-scribe line m2 is located and the second non-pattern region 102b2. That is, in the region where the second sub-scribe line m2 is located and the second non-pattern region 102b2, only the first electrode layer 1021 is retained, and the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 above can be removed by laser scribing.

[0147] Because the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024, and the first electrode layer 1021 in the second pattern region 102a2 are retained, the second pattern region 102a2 can be used for power generation. For the region where the second sub-scribe line m2 is located and the second non-pattern region 102b2, although the first electrode layer 1021 is retained, the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, and the hole transport layer 1024 are removed, so the region where the second sub-scribe line m2 is located and the second non-pattern region 102b2 cannot be used for power generation. For example Figure 15 , the black region of the second region 100b in the second area 100b can be the second pattern region 102a2, and the white region includes the second sub-scribe line m2 and the second non-pattern region 102b2. That is, Figure 15 , the black region can be used for power generation, and the white region cannot be used for power generation.

[0148] And, since the area where the second sub-scribe line m2 is located and the second non-pattern area 102b2 remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the difference of the structure of the second pattern area 102a2 is obvious compared with the structure of the second pattern area 102a2, so that the perovskite battery assembly 100 can have a better pattern effect in the second area 100b.

[0149] In the embodiments of the present application, since the scribing mode of the second sub-scribe line m2 is different from the scribing mode of the first sub-scribe line m1, in the case that the scribing mode of the first sub-scribe line m1 is the scribing mode of the above-mentioned scheme one, the scribing mode of the second sub-scribe line m2 can be the scribing mode of the above-mentioned scheme three; in the case that the scribing mode of the first sub-scribe line m1 is the scribing mode of the above-mentioned scheme two, the scribing mode of the second sub-scribe line m2 can be the scribing mode of the above-mentioned scheme four.

[0150] In the embodiments of the present application, referring to Figure 16 , the second area 100b of the perovskite battery assembly 100 can also not include the second sub-scribe line m2. That is, the second area 100b of the perovskite battery assembly 100 can not display a pattern, and the pattern display can be realized through the first area 100a of the perovskite battery assembly 100. That is, the perovskite battery assembly 100 can realize the pattern display of a local area. In this case, referring to Figure 17 , since the second area 100b is not provided with the second sub-scribe line m2, the second perovskite battery functional layer part 102-2 is included in the second area 100b, so that the second area 100b can be used for power generation, and the power generation power and the photoelectric conversion efficiency of the perovskite battery assembly 100 are improved. For example Figure 18 , the black areas of the second area 100b can all be used for power generation.

[0151] In the embodiments of the present application, referring to Figure 8 , Figure 11 , Figure 14 , Figure 15 , Figure 16 and Figure 18 , the first area 100a and the second area 100b can be arranged along a target direction X. The target direction X can be a horizontal direction or a vertical direction, and the embodiments of the present application do not limit the target direction X. Alternatively, one of the first area 100a and the second area 100b can surround the other area.

[0152] Further, the perovskite battery assembly 100 can be divided into more areas in addition to being divided into the first area 100a and the second area 100b, and the embodiments of the present application do not specifically limit the number of areas of the perovskite battery assembly 100.

[0153] In this embodiment, the perovskite solar cell functional layer 102 can be a monolithic film layer. A monolithic film layer can be understood as the perovskite solar cell functional layer 102, apart from the target scribing line m, not having any other scribing lines designed to divide the perovskite solar cell functional layer 102 into multiple cell units 102dy, but rather treating the perovskite solar cell functional layer 102 as a single, monolithic cell.

[0154] Or, refer to Figures 19 to 26 The perovskite solar cell functional layer 102 includes a plurality of sequentially electrically connected cell cells 102dy. Each cell 102dy includes a first electrode 10211 located in the first electrode layer 1021, a light-absorbing pattern 10221 located in the perovskite light-absorbing layer 1022, and a second electrode 10231 located in the second electrode layer 1023. Further, each cell 102dy also includes a hole transport pattern 10241 located in the hole transport layer 1024 and an electron transport pattern 10251 located in the electron transport layer 1025. For example, the plurality of cell cells 102dy are connected in series.

[0155] Optional, combined Figures 19 to 26 The first electrode 10211 of any two adjacent battery cells 102dy in the plurality of battery cells 102dy is separated by a P1 trench, and the light absorption pattern 10221 and the second electrode 10231 of any two adjacent battery cells 102dy in the plurality of battery cells 102dy are separated by a P3 trench.

[0156] Furthermore, in any two adjacent battery cells 102dy among the plurality of battery cells 102dy, the orthographic projection of the first electrode 10211 of the first battery cell on the first substrate 101 and the orthographic projection of the second electrode 10231 of the second battery cell on the first substrate 101 overlap. The light-absorbing pattern 10221 of the second battery cell has a connection opening (P2 trench), and the second electrode 10231 of the second battery cell is connected to the first electrode 10211 of the first battery cell through the connection opening.

[0157] Optional, see reference Figure 19 , Figure 21 , Figure 23 , Figure 24 as well as Figure 26 The orthographic projections of trench P1, trench P2, and trench P3 on the first substrate 101 do not overlap.

[0158] Figure 20 yes Figure 19 Cross-sectional view along the HH' direction. Figure 22 yes Figure 21 Cross-sectional view along direction II'. Figure 23The cross-sectional view of the first region 100a can refer to Figure 20 , Figure 23 The cross-sectional view of the second region 100b can refer to Figure 22 . Figure 25 The cross-sectional view of the first region 100a can refer to Figure 24 The cross-sectional view of the first region 100a can refer to Figure 26 The first perovskite battery functional layer part 102-1 of the first region 100a can be an integral film layer, and the cross-sectional view thereof can refer to Figure 1 or Figure 3 , Figure 26 The second perovskite battery functional layer part 102-2 of the second region 100b can include a plurality of battery units 102dy electrically connected in sequence, and the cross-sectional view thereof can refer to Figure 22 .

[0159] Since the perovskite battery functional layer 102 includes a plurality of battery units 102dy electrically connected in sequence, the problem of aging of the perovskite battery assembly 100 as a whole due to short circuit at a certain position of the perovskite battery assembly 100 is avoided, and the stability and durability of the perovskite battery assembly 100 can be improved.

[0160] Referring to Figures 1 to 26 It can be seen that the perovskite battery assembly 100 can further include: a glue film 104. Wherein, the glue film 104 is located between the perovskite battery functional layer 102 and the second substrate 103, and is used to protect the perovskite battery functional layer 102.

[0161] Optionally, the glue film 104 can be a POE glue film 104. The POE glue film 104 is a polyolefin elastomer material, which has high elasticity, high strength, and high elongation, and other excellent mechanical properties and good low-temperature performance. The POE glue film 104 also has excellent water resistance and PID (Potential Induced Degradation) resistance, which makes it widely used in the field of solar cells.

[0162] The POE glue film 104 is located between the second substrate 103 and the perovskite battery functional layer 102, and mainly functions to protect the perovskite battery functional layer 102, so that the perovskite battery assembly is not affected by the external environment during operation, prolonging the service life of the perovskite battery assembly, and at the same time, sunlight can pass through the glue film 104 to reach the perovskite battery functional layer 102 to the greatest extent, improving the power generation efficiency of the perovskite battery assembly 100.

[0163] Referring to Figures 1 to 26 , the perovskite battery assembly 100 further includes: a wire 105. The wire 105 is located on the side of the perovskite battery functional layer 102, and the orthogonal projection of the wire 105 on the first substrate 101 and the orthogonal projection of the perovskite battery functional layer 102 on the first substrate 101 are arranged at intervals.

[0164] Optionally, the perovskite battery assembly 100 includes two wires 105, one of which is connected to the anode, and the other is connected to the cathode.

[0165] With reference to Figures 1 to 26 The perovskite battery assembly 100 further includes an encapsulation layer 106. The encapsulation layer 106 is located between the first substrate 101 and the second substrate 103, and surrounds the perovskite battery functional layer 102, the adhesive film 104 and the wires 105. Optionally, the encapsulation layer 106 can be PIB (polyisobutylene), which is a new type of encapsulation material mainly used to improve the waterproof performance of the perovskite battery assembly.

[0166] For example, the encapsulation layer 106 (PIB) plays a crucial role in the encapsulation of the perovskite battery assembly 100. Since the perovskite battery assembly 100 is very sensitive to water vapor, the intrusion of water vapor will cause the battery to degrade, affecting the performance and life of the battery. PIB has low water vapor transmission rate, high adhesion and electrical insulation, which can effectively block the intrusion of water vapor and protect the stability and performance of the battery.

[0167] In the embodiments of the present application, laser scribing is used to carve a painting pattern on the perovskite battery functional film to achieve the pattern effect. Moreover, the laser scribing has high laser precision, and the painting lines of the carved painting pattern can reach nanometer level in width and precision, making the painting quality of the perovskite battery assembly exquisite. Moreover, any painting outline can be converted into a laser scribing drawing to realize laser scribing production, that is, painting customization can be realized, and the flexibility is good.

[0168] Moreover, the perovskite battery assembly 100 itself belongs to a perovskite battery and has a photovoltaic power generation effect. The perovskite battery functional layer 102 with the painting effect in the perovskite battery assembly 100 is located between the first substrate 101 and the second substrate 103, which can protect the perovskite battery functional layer 102, and the perovskite battery assembly has a long service life.

[0169] In the case where the perovskite battery functional layer 102 of the perovskite battery assembly 100 includes a plurality of battery cells 102dy electrically connected in sequence, the sequence of laser scribing can be P1 scribing, P2 scribing, P3 scribing, P4 half-clearing and P4 clearing.

[0170] P1 scribe line, P2 scribe line and P3 scribe line are three parallel laser scribe lines. P1 scribe line is used to obtain the first electrode 10211 of the plurality of battery units 102dy. P2 scribe line is used to obtain the connecting opening. P3 scribe line is used to obtain the light absorption pattern 10221 of the plurality of battery units 102dy, and the second electrode 10231. That is, P1 scribe line, P2 scribe line and P3 scribe line can divide the whole perovskite battery functional film into a plurality of battery units 102dy connected in series, so as to achieve the effects of blocking current conduction, increasing voltage and series connection of the battery.

[0171] The purpose of P4 half-edge cleaning is to preliminarily clean the edge of the perovskite battery functional film, remove the film layer of about 10 mm (millimeter) width close to the edge of the first substrate 101 (or the second substrate 103), form an insulating area, and prepare for subsequent P4 edge cleaning.

[0172] The purpose of P4 edge cleaning is to thoroughly clean the edge of the perovskite battery functional film, remove the remaining film layer, ensure that the edge is clean, and prepare for subsequent packaging.

[0173] In the embodiment of the present application, P1 scribe line is to remove the part between adjacent first electrodes 10211 in the first electrode layer 1021. P2 scribe line is to remove the electron transport layer 1025, the perovskite light absorption layer 1022 and the hole transport layer 1024, and expose the underlying first electrode 10211. P3 scribe line and P4 half-edge cleaning can both be to remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light absorption layer 1022 and the hole transport layer 1024, and not to remove the first electrode layer 1021. P4 edge cleaning is to remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light absorption layer 1022, the hole transport layer 1024 and the first electrode layer 1021.

[0174] Optionally, the scribing process of the target scribe line m can be realized based on the inherent process of the perovskite battery, avoiding the increase of the process and the cost due to the design of the target scribe line m. For example, the target scribe line m at least penetrates the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, that is, the target scribe line m and the P3 scribe line and the P4 semi-clear edge removed film layer are the same. Thus, the target scribe line m can be formed by using the P3 scribe line or the P4 semi-clear edge. In addition, in addition to penetrating the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022 and the hole transport layer 1024, the target scribe line m also penetrates the first electrode layer 1021. Then, the target scribe line m can be removed by using the P4 clear edge after using the P3 scribe line or the P4 semi-clear edge to remove the first electrode layer 1021, or the target scribe line m can be directly removed by using the P4 clear edge to remove the second electrode layer 1023, the electron transport layer 1025, the perovskite light-absorbing layer 1022, the hole transport layer 1024 and the first electrode layer 1021.

[0175] In summary, the embodiment of the present application provides a perovskite battery assembly. The perovskite battery assembly includes a first substrate, a perovskite battery functional layer and a second substrate. At least part of the perovskite battery functional layer is designed with a target scribe line. The target scribe line can realize the pattern effect of the perovskite battery assembly. Thus, the pattern effect can be realized without attaching a pattern film to the outside of the perovskite battery assembly, thereby avoiding the problems of wrinkles, bubbles, discoloration and aging of the externally attached pattern film, and ensuring the pattern effect of the perovskite battery assembly.

[0176] Figure 27 is a flowchart of a preparation method of a perovskite battery assembly provided by the embodiment of the present application. Referring to Figure 27 , the method comprises:

[0177] Step S101, forming a perovskite battery functional film on a first substrate.

[0178] The first substrate 101 can be a glass substrate. The perovskite battery functional film can be used to form an electric current when light is irradiated, and can realize the battery function.

[0179] Step S102, patterning the perovskite battery functional film to obtain a perovskite battery functional layer.

[0180] In the embodiment of the present application, at least part of the perovskite battery functional layer 102 includes a target scribe line m, which is used to distinguish the patterned area 102a and the non-patterned area 102b of the perovskite battery functional layer 102. The patterned area 102a and the non-patterned area 102b are used to make the perovskite battery component achieve a pattern effect. In this way, there is no need to attach a pattern film outside the perovskite battery component to achieve the pattern effect, thereby avoiding the problems of wrinkles, bubbles, discoloration and aging of the externally attached pattern film, and ensuring the pattern effect of the perovskite battery component.

[0181] Optionally, in the case where the perovskite battery functional layer 102 includes a plurality of battery units 102dy connected in sequence, the patterning process of the perovskite battery functional film includes the following steps:

[0182] Step 1: Form a first electrode film, and perform etching treatment (P1 scribe line) on the first electrode film to obtain a plurality of electrode units of the first electrode 10211. The plurality of electrode units of the first electrode 10211 are arranged at intervals.

[0183] Step 2: Form a hole transport film, a perovskite light absorption film and an electron transport film, and perform etching treatment (P2 scribe line) on the hole transport film, the perovskite light absorption film and the electron transport film to obtain a plurality of connection openings, each of which is used to expose a part of one of the first electrodes 10211.

[0184] Step 3: Form a second electrode film. The second electrode film is connected to the first electrode 10211 exposed by the connection openings.

[0185] Step 4: Perform etching treatment (P3 scribe line) on the second electrode film and the perovskite light absorption film to obtain a plurality of light absorption patterns 10221 and second electrodes 10231 of the electrode units. In the two adjacent battery units 102dy, the orthographic projection of the first electrode 10211 of the first battery unit on the first substrate 101 and the orthographic projection of the second electrode 10231 of the second battery unit on the first substrate 101 overlap. The connection opening of the light absorption pattern 10221 of the second battery unit exposes at least part of the first electrode 10211 of the first battery unit, and the second electrode 10231 of the second battery unit is connected to the first electrode 10211 of the first battery unit through the connection opening.

[0186] Step 5: Use the target scribe line m to process the perovskite battery functional film (P3 scribe line or P4 half-clearing edge) to obtain the patterned area 102a and the non-patterned area 102b.

[0187] Step 6: Semi-clearing edge processing (P4 semi-clearing edge) is performed on the perovskite battery functional film. The semi-clearing edge processing refers to removing the perovskite light-absorbing film and the second electrode film in the first edge region of the perovskite battery functional film. In addition, the hole transport film and the electron transport film in the first edge region of the perovskite battery functional film can also be removed.

[0188] Step 7: Clearing edge processing (P4 clearing edge) is performed on the perovskite battery functional film. The clearing edge processing refers to removing the first electrode film in the second edge region of the perovskite battery functional film. The second edge region is a partial region in the first edge region that is far away from the middle part of the perovskite battery functional film.

[0189] In the embodiments of the present application, referring to Figures 28 to 36 , the step sequence for patterning the perovskite battery functional film is: Step 1, Step 2, Step 3, Step 4, Step 5, Step 6, and Step 7. That is, the step sequence for patterning the perovskite battery functional film is: P1 scribing → P2 scribing → P3 scribing → P3 scribing or P4 semi-clearing edge engraving the artwork pattern → P4 semi-clearing edge → P4 clearing edge.

[0190] Alternatively, referring to Figures 37 to 45 , the step sequence for patterning the perovskite battery functional film is: Step 1, Step 2, Step 3, Step 4, Step 6, Step 5, and Step 7. That is, the step sequence for patterning the perovskite battery functional film is: P1 scribing → P2 scribing → P3 scribing → P4 semi-clearing edge → P3 scribing or P4 semi-clearing edge engraving the artwork pattern → P4 clearing edge.

[0191] Alternatively, referring to Figures 46 to 54 , the step sequence for patterning the perovskite battery functional film is: Step 1, Step 2, Step 3, Step 4, Step 6, Step 7, and Step 5. That is, the step sequence for patterning the perovskite battery functional film is: P1 scribing → P2 scribing → P3 scribing → P4 semi-clearing edge → P4 clearing edge → P3 scribing or P4 semi-clearing edge engraving the artwork pattern.

[0192] Alternatively, referring to Figures 55 to 58 , in the case where the perovskite battery functional layer 102 is an integral film layer, patterning the perovskite light-absorbing film can include: forming a first electrode film, forming a perovskite light-absorbing film, forming a second electrode film, performing etching processing (P3 scribing or P4 semi-clearing edge) on the second electrode film, the perovskite light-absorbing film, and the first electrode film, and then performing P4 clearing edge after engraving the artwork pattern to obtain the perovskite battery functional layer 102. The perovskite battery functional layer 102 includes the target scribe m.

[0193] For example,Figure 5 In the embodiment, the second electrode film, the perovskite light-absorbing film and the first electrode film in the region where the target scribe line m is located are removed, and the second electrode film, the perovskite light-absorbing film and the first electrode film in the regions other than the region where the target scribe line m is located are not removed.

[0194] That is, the region where the target scribe line m is located is the pattern region 102a. The regions other than the region where the target scribe line m is located in the perovskite battery functional layer 102 are the non-pattern regions 102b. In this case, the perovskite battery functional layer 102 retains the parts in the regions other than the region where the target scribe line m is located, and the part in the region where the target scribe line m is located can be removed by laser (P3 scribe or P4 half-clearing).

[0195] For example, the target scribe line m is located in the non-pattern region 102b. Figure 1 In the embodiment, the second electrode film, the perovskite light-absorbing film and the first electrode film in the region where the target scribe line m is located and the non-pattern region 102b are removed, and the second electrode film, the perovskite light-absorbing film and the first electrode film in the region (the pattern region 102a) surrounded by the target scribe line m are not removed.

[0196] That is, the target scribe line m surrounds the pattern region 102a, and the target scribe line m is located between the pattern region 102a and the non-pattern region 102b. The side of the target scribe line m close to the pattern region 102a includes the perovskite battery functional layer 102, and the region where the target scribe line m is located and the side of the target scribe line m close to the non-pattern region 102b do not include the perovskite battery functional layer 102. In this case, the perovskite battery functional layer 102 only retains the part in the pattern region 102a, and the other regions can be removed by laser (P3 scribe or P4 half-clearing).

[0197] In step S103, a second substrate is formed on the side of the perovskite battery functional layer away from the first substrate.

[0198] In the embodiment, before the second substrate is formed, the adhesive film 104, the Korean tape 105 and the encapsulation layer 106 can be formed first. Then, the second substrate is formed to obtain the perovskite battery assembly 100.

[0199] In summary, the embodiment of the present application provides a preparation method of a perovskite battery assembly. The perovskite battery assembly prepared by the method comprises a first substrate, a perovskite battery functional layer, and a second substrate. At least part of the perovskite battery functional layer is designed with a target scribe line. The target scribe line can be used to achieve a pattern effect of the perovskite battery assembly. Thus, the pattern film attached to the outside of the perovskite battery assembly is not needed to achieve the pattern effect, thereby avoiding the problems of wrinkles, bubbles, discoloration, and aging of the pattern film attached to the outside, and ensuring the pattern effect of the perovskite battery assembly.

[0200] The embodiment of the present application also provides a photovoltaic assembly comprising one or more perovskite battery assemblies provided by the above-described embodiments. In the case where the photovoltaic assembly comprises a plurality of perovskite battery assemblies, the plurality of perovskite battery assemblies can be connected in series or connected in parallel.

[0201] Optionally, the number of perovskite battery assemblies included in the photovoltaic assembly can be determined according to different application scenarios. The photovoltaic assembly can convert solar energy into electrical energy, or store the electrical energy in a storage battery, or drive a load to work.

[0202] Since the photovoltaic assembly can have substantially the same technical effects as the perovskite battery assembly described in the foregoing embodiments, for the purpose of brevity, the technical effects of the photovoltaic assembly are not described again here.

[0203] The embodiment of the present application also provides a power-consuming device. The power-consuming device can comprise a power-consuming apparatus and one or more perovskite battery assemblies provided by the above-described embodiments. The perovskite battery assembly is connected to the power-consuming apparatus to supply power to the power-consuming apparatus.

[0204] Optionally, the power-consuming device can be a common device comprising a perovskite battery assembly. For example, devices in the fields of communication, transportation, industry and agriculture, and lighting, etc. The power-consuming device can be, for example, a satellite, a communication device, a traffic signal lamp, a lighthouse, a wireless telephone booth, a monitoring device in the field of oil drilling, a power supply system, a camping lamp, an electric vehicle, an electronic device charger, and a building curtain wall, etc.

[0205] The power-consuming device can comprise one or more perovskite battery assemblies. In the case where the power-consuming device comprises a plurality of perovskite battery assemblies, the plurality of perovskite battery assemblies can be connected in series or connected in parallel.

[0206] Optionally, the one or more perovskite battery assemblies included in the power-consuming device can constitute a photovoltaic assembly.

[0207] Since the electric device can have substantially the same technical effects as the perovskite battery assembly described in the foregoing embodiments, for the purpose of brevity, the technical effects of the electric device are not described again here.

[0208] The terms used in the embodiments of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the common meanings of the same to those having ordinary skills in the art to which the present application belongs.

[0209] The terms used in the embodiments of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the common meanings of the same to those having ordinary skills in the art to which the present application belongs. The terms "first", "second", "third" and the like used in the patent application specification and claims of the present application do not represent any order, number or importance, but are only used to distinguish different components. Similarly, "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. "Include" or "contain" and the like mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0210] The above is only an optional embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A perovskite solar cell module, characterized in that, The perovskite solar cell module includes: First substrate; A perovskite solar cell functional layer is located on one side of the first substrate. At least a portion of the perovskite solar cell functional layer includes target scribing lines, which are used to distinguish between patterned and non-patterned areas of the perovskite solar cell functional layer. The patterned and non-patterned areas are used to enable the perovskite solar cell assembly to achieve a patterned effect. The second substrate is located on the side of the perovskite solar cell functional layer away from the first substrate.

2. The perovskite solar cell module according to claim 1, characterized in that, The target line surrounds the patterned area, and the target line is located between the patterned area and the non-patterned area; The side of the target line closest to the patterned area includes the perovskite solar cell functional layer, while the area where the target line is located and the side of the target line closest to the non-patterned area do not include the perovskite solar cell functional layer.

3. The perovskite solar cell module according to claim 1, characterized in that, The area where the target line is located is the patterned area, and the other areas in the perovskite solar cell functional layer other than the area where the target line is located are the non-patterned areas. The patterned area does not include the perovskite solar cell functional layer, while the unpatterned area includes the perovskite solar cell functional layer.

4. The perovskite solar cell module according to claim 1, characterized in that, The perovskite solar cell module includes a first region and a second region, and the perovskite solar cell functional layer includes a first perovskite solar cell functional layer portion located in the first region and a second perovskite solar cell functional layer portion located in the second region. The target scribing line includes a first sub-scribing line located in the first region, and the first sub-scribing line is used to distinguish the first patterned region and the first unpatterned region of the first perovskite solar cell portion. The first patterned area and the first unpatterned area are used to enable the perovskite solar cell assembly to achieve the patterned effect of the first area.

5. The perovskite solar cell module according to claim 4, characterized in that, The target scribe line also includes a second sub-scribe line located in the second region, the second sub-scribe line being used to distinguish the second patterned region and the second unpatterned region of the second perovskite solar cell functional layer portion; The second patterned area and the second non-patterned area are used to enable the perovskite solar cell module to achieve the patterned effect of the second area; the drawing method of the second sub-line is different from that of the first sub-line.

6. The perovskite solar cell module according to claim 5, characterized in that, In the first region, the first sub-line is located between the first patterned region and the first unpatterned region. The side of the first sub-line closer to the first patterned region includes the first perovskite cell functional layer portion. The region where the first sub-line is located and the side of the first sub-line closer to the second unpatterned region do not include the first perovskite cell functional layer portion. In the second region, the area where the second sub-line is located is the second patterned region, and the other areas in the second perovskite cell functional layer portion other than the area where the second sub-line is located are the second non-patterned regions; the second patterned region does not include the second perovskite cell functional layer portion, and the second non-patterned region includes the second perovskite cell functional layer portion.

7. The perovskite solar cell module according to claim 4, characterized in that, The first region and the second region are arranged along the target direction; or, one of the first region and the second region surrounds the other region.

8. The perovskite solar cell module according to any one of claims 1 to 7, characterized in that, The perovskite solar cell functional layer includes a first electrode layer, a perovskite light-absorbing layer and a second electrode layer stacked in sequence. The target line penetrates at least through the second electrode layer and the perovskite light-absorbing layer.

9. The perovskite solar cell module according to claim 8, characterized in that, The target line also penetrates the first electrode layer.

10. The perovskite solar cell module according to claim 8, characterized in that, The perovskite solar cell functional layer includes a plurality of solar cells that are electrically connected in sequence. Each solar cell includes a first electrode located in the first electrode layer, a light-absorbing pattern located in the perovskite light-absorbing layer, and a second electrode located in the second electrode layer. In two adjacent battery cells, the orthographic projection of the first electrode of the first battery cell onto the first substrate and the orthographic projection of the second electrode of the second battery cell onto the first substrate overlap. The light-absorbing pattern of the second battery cell has a connection opening, and the second electrode of the second battery cell is connected to the first electrode of the first battery cell through the connection opening.

11. The perovskite solar cell module according to any one of claims 1 to 7, characterized in that, The perovskite solar cell module includes: a film, wires, and an encapsulation layer; The encapsulant film is located between the perovskite solar cell functional layer and the second substrate. The conductive wire is located on the side of the perovskite solar cell functional layer, and the orthographic projection of the conductive wire on the first substrate and the orthographic projection of the perovskite solar cell functional layer on the first substrate are spaced apart. The encapsulation layer is located between the first substrate and the second substrate and surrounds the perovskite solar cell functional layer, the encapsulant film, and the conductive wire.

12. A photovoltaic module, characterized in that, The photovoltaic module includes: a plurality of perovskite cell modules as described in any one of claims 1 to 11; Multiple perovskite solar cell modules are connected in series or in parallel.

13. An electrical appliance, characterized in that, The electrical equipment includes: an electrical device, and a perovskite solar cell module as described in any one of claims 1 to 11; The perovskite battery module is connected to the electrical device, and the perovskite battery module is used to supply power to the electrical device.

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