CN110797460A

CN110797460A - Perovskite solar cell module cut at one time and preparation method thereof

Info

Publication number: CN110797460A
Application number: CN201810864357.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Microquanta Semiconductor Corp Ltd
Current assignee: Hangzhou Microquanta Semiconductor Corp Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-02-14
Anticipated expiration: 2038-08-01
Also published as: CN110797460B

Abstract

The invention relates to a perovskite solar cell assembly cut at one time, which comprises a plurality of sub-cells connected in series in sequence, wherein each sub-cell comprises a substrate, a conducting layer, a front electric transmission layer, a perovskite layer, a rear electric transmission layer and a back electrode from bottom to top; and a plurality of leads are also arranged on the battery component to connect the back electrode of the previous sub-battery with the conductive segment of the next sub-battery. The invention also discloses a preparation method of the battery component. The battery component only needs to be cut once, so that the cutting cost and the error rate are reduced.

Description

Perovskite solar cell module cut at one time and preparation method thereof

Technical Field

The invention belongs to the technical field of perovskite solar cell manufacturing, and particularly designs a once-cut perovskite solar cell module and a preparation method thereof.

Background

With recent developments in the photovoltaic field, perovskite solar cells are a new type of cell with great potential to replace the dominating position of silicon-based solar cells.

However, laboratory-prepared perovskite cells are small in area and cannot be commercialized, and the preparation of large-area cells by the same method causes various problems and decreases efficiency. How to prepare high efficiency large area perovskite battery components has been a problem. The traditional component battery connection method needs to cut for many times, and the joint position of each cutting always has problems, such as inaccurate alignment, difficult control of cutting force and the like.

The conventional series module structure of the perovskite solar cell generally has a structure as shown in fig. 1, and the perovskite solar cell module sequentially comprises a substrate 1', a conductive layer 2', a front electrical transmission layer 3', a perovskite layer 4', a rear electrical transmission layer 5', a back electrode 6', P1', P2' and P3' from bottom to top, wherein the laser cutting positions are respectively arranged on the substrate, the conductive layer, the front electrical transmission layer, the perovskite layer and the back electrical transmission layer. Because the battery pack needs three cuts of P1', P2' and P3', and the cuts must be strictly parallel or intersect; the cutting gap is small, and impurities are easy to remain to reduce the performance of the battery.

The perovskite solar cell module adopts a laminated structure as shown in fig. 2, and the perovskite solar cell module sequentially comprises a substrate 1', a conducting layer 2', a lower cell 7', a front electrical transmission layer 3', a perovskite layer 4', a rear electrical transmission layer 5', a back electrode 6', P1', P2 'and P3' from bottom to top, wherein the laser cutting positions are the positions of the perovskite solar cell module. The same drawback occurs because the cell assembly requires three cuts of P1', P2', P3 '. Further, in the tandem solar cell technology, the lower cell (bottom cell) and the upper cell (top cell) may use different semiconductor materials, such as the lower cell uses copper indium gallium selenide (cigs) or cadmium telluride (cdte) material or perovskite material, and the upper cell uses perovskite material with absorption bandwidth matched to that of the lower cell. Thus, if the method of cutting three times is adopted, the upper battery and the lower battery are easy to be short-circuited. In order to avoid short circuit, the line width of cutting needs to be widened, the dead zone area is enlarged, and the perovskite material is greatly wasted.

Disclosure of Invention

The invention aims to provide a perovskite solar cell module cut at one time and a preparation method thereof, which avoid repeated cutting of the cell module and possible short circuit, effectively reduce dead zone area, improve the utilization rate of perovskite materials and reduce cost.

The invention is realized by providing a first once-cut perovskite solar cell module, which comprises a plurality of sub-cells connected in series end to end in sequence, wherein each sub-cell comprises a substrate, a conducting layer, a front electric transmission layer, a perovskite layer, a rear electric transmission layer and a back electrode from bottom to top in sequence, cutting lines are respectively arranged between every two adjacent sub-cells, the cutting lines sequentially cut off the back electrode, the rear electric transmission layer, the perovskite layer, the front electric transmission layer and the conducting layer from top to bottom, n sub-cells are provided with n-1 cutting lines which are arranged at intervals from the front end to the rear end of the cell module, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell from the second sub-cell close to the front end of the cell module to the rear end, the film scraping line is positioned on the front side of the sub-cell and is adjacent to the cutting line positioned on the side, the film scraping line cuts off the back electrode, the rear electric transmission layer, the perovskite layer and the front electric transmission layer from top to bottom in sequence, and the conductive layer is reserved, so that a conductive section which is equal to the width of the film scraping line is exposed on the conductive layer of the sub-battery; the battery pack is also provided with a plurality of conducting wires, and each conducting wire is used for electrically connecting the back electrode of the previous sub-battery with the conducting section of the next sub-battery.

The invention is realized by providing a second once-cut perovskite solar cell assembly, which comprises a plurality of sub-cells connected in series end to end in sequence, wherein each sub-cell comprises a substrate, a conducting layer, a lower cell, a front electric transmission layer, a perovskite layer, a rear electric transmission layer and a back electrode from bottom to top in sequence, cutting lines are respectively arranged between every two adjacent sub-cells, the cutting lines sequentially cut off the back electrode, the rear electric transmission layer, the perovskite layer, the front electric transmission layer, the lower cell and the conducting layer from top to bottom, n sub-cells are provided with n-1 cutting lines which are arranged at intervals from the front end to the rear end of the cell assembly, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell from the second sub-cell close to the front end of the cell assembly to the rear end, the film scraping line is positioned on the front side of the sub-cell and is adjacent to the cutting line positioned on the side, the film scraping line cuts off the back electrode, the rear electric transmission layer, the perovskite layer, the front electric transmission layer and the lower battery from top to bottom in sequence, and the conductive layer is reserved, so that a conductive section which is equal to the width of the film scraping line is exposed on the conductive layer of the sub-battery; the battery pack is also provided with a plurality of conducting wires, and each conducting wire is used for electrically connecting the back electrode of the previous sub-battery with the conducting section of the next sub-battery.

The invention is realized by providing a third once-cut perovskite solar cell module, which comprises a plurality of sub-cells connected in series end to end in sequence, wherein each sub-cell comprises a substrate, a back electrode, a rear electric transmission layer, a perovskite layer, a front electric transmission layer and a conductive layer from bottom to top in sequence, cutting lines are respectively arranged between every two adjacent sub-cells, the cutting lines sequentially cut off the conductive layer, the front electric transmission layer, the perovskite layer, the rear electric transmission layer and the back electrode from top to bottom, n sub-cells are provided with n-1 cutting lines which are arranged at intervals from the front end to the rear end of the cell module, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell from the second sub-cell close to the front end of the cell module to the rear end, the film scraping line is positioned on the front side of the sub-cell and is adjacent to the cutting line positioned on the side, the film scraping line sequentially cuts off the conducting layer, the front electric transmission layer, the perovskite layer and the rear electric transmission layer from top to bottom, and the back electrode is reserved, so that a back electrode section which is equal to the width of the film scraping line is exposed on the back electrode of the sub-battery; the battery pack is also provided with a plurality of leads, and each lead is used for electrically connecting the conductive layer of the previous sub-battery with the back electrode section of the next sub-battery.

The invention is realized by providing a fourth once-cut perovskite solar cell assembly, which comprises a plurality of sub-cells connected in series end to end in sequence, wherein each sub-cell comprises a substrate, a back electrode, a lower cell, a rear electric transmission layer, a perovskite layer, a front electric transmission layer and a conductive layer from bottom to top in sequence, cutting lines are respectively arranged between every two adjacent sub-cells, the cutting lines sequentially cut off the conductive layer, the front electric transmission layer, the perovskite layer, the rear electric transmission layer, the lower cell and the back electrode from top to bottom, n sub-cells are provided with n-1 cutting lines which are arranged at intervals from the front end to the rear end of the cell assembly, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell from the second sub-cell close to the front end of the cell assembly to the rear end, the film scraping line is positioned on the front side of the sub-cell and is adjacent to the cutting line positioned on the side, the film scraping line sequentially cuts off the conducting layer, the front electrical transmission layer, the perovskite layer, the rear electrical transmission layer and the lower battery from top to bottom, and the back electrode is reserved, so that a back electrode section which is equal to the width of the film scraping line is exposed on the back electrode of the sub-battery; the battery pack is also provided with a plurality of leads, and each lead is used for electrically connecting the conductive layer of the previous sub-battery with the back electrode section of the next sub-battery.

The present invention is achieved by providing a first method for producing a single-cut perovskite solar cell module as described in the first paragraph, comprising the steps of:

the first step is as follows: cleaning the substrate;

the second step is that: coating TCO, ITO, FTO or AZO on a substrate to prepare a conductive layer, wherein the thickness of the conductive layer is 50-250 nm;

the third step: plating a front electric transmission layer on the conductive layer, wherein the thickness of the front electric transmission layer is 5-100 nm;

the fourth step: preparing a perovskite layer on the front electrical transmission layer, wherein the thickness of the perovskite layer is 50-550 nm;

the fifth step: preparing a rear electrical transmission layer on the perovskite layer, wherein the thickness of the rear electrical transmission layer is 5-100 nm;

and a sixth step: preparing a back electrode on the back electric transmission layer, wherein the thickness of the back electrode is 10-300 nm;

the seventh step: processing n-1 cutting lines which are parallel to each other on the semi-finished product manufactured in the sixth step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries, wherein the cutting width of each cutting line is 10 nm-1 mu m;

eighth step: processing a film scraping line by using a film scraping method, wherein the width of the film scraping line is 10 micrometers-5 cm;

the ninth step: and the back electrode of the front sub-battery is electrically connected with the conductive section of the rear sub-battery by a plurality of leads.

The present invention is achieved by providing a second method for producing a single-cut perovskite solar cell module as described in the second above, comprising the steps of:

the first step is as follows: cleaning the substrate;

the third step: preparing a lower battery on the conducting layer by adopting a lamination processing mode;

the fourth step: plating a front electric transmission layer on the lower battery, wherein the thickness of the front electric transmission layer is 5-100 nm;

the fifth step: preparing a perovskite layer on the front electrical transmission layer, wherein the thickness of the perovskite layer is 50-550 nm;

and a sixth step: preparing a rear electrical transmission layer on the perovskite layer, wherein the thickness of the rear electrical transmission layer is 5-100 nm;

the seventh step: preparing a back electrode on the back electric transmission layer, wherein the thickness of the back electrode is 10-300 nm;

eighth step: processing n-1 cutting lines which are parallel to each other on the semi-finished product prepared in the seventh step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries, wherein the cutting width of each cutting line is 10 nm-1 mu m;

the ninth step: processing a film scraping line by using a film scraping method, wherein the width of the film scraping line is 10 micrometers-5 cm;

the tenth step: and the back electrode of the front sub-battery is electrically connected with the conductive section of the rear sub-battery by a plurality of leads.

The present invention is achieved by providing a third method for manufacturing a single-cut perovskite solar cell module as described in the third above, comprising the steps of:

the first step is as follows: cleaning the substrate;

the second step is that: preparing a back electrode on a substrate, wherein the thickness of the back electrode is 10-300 nm;

the third step: plating a back electric transmission layer on the back electrode, wherein the thickness of the back electric transmission layer is 5-100 nm;

the fourth step: preparing a perovskite layer on the rear electric transmission layer, wherein the thickness of the perovskite layer is 50-550 nm;

the fifth step: preparing a front electrical transmission layer on the perovskite layer, wherein the thickness of the front electrical transmission layer is 5-100 nm;

and a sixth step: coating TCO, ITO, FTO or AZO on the front electric transmission layer 3 to prepare a conductive layer, wherein the thickness of the conductive layer is 50-250 nm;

the seventh step: processing n-1 cutting lines on the semi-finished product prepared in the sixth step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries, wherein the cutting width of each cutting line is 10 nm-1 mu m;

the ninth step: and the conducting layer of the front sub-battery is electrically connected with the back electrode section of the back sub-battery by a plurality of leads.

The present invention is achieved by providing a fourth method for manufacturing a single-cut perovskite solar cell module as described in the fourth above, comprising the steps of:

the first step is as follows: cleaning the substrate;

the third step: preparing a lower battery on the back electrode in a lamination processing mode;

the fourth step: plating a rear electric transmission layer on the lower battery, wherein the thickness of the rear electric transmission layer is 5-100 nm;

the fifth step: preparing a perovskite layer on the rear electric transmission layer, wherein the thickness of the perovskite layer is 50-550 nm;

and a sixth step: preparing a front electrical transmission layer on the perovskite layer, wherein the thickness of the front electrical transmission layer is 5-100 nm;

the seventh step: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-AZO) on the front electric transmission layer to prepare a conductive layer, wherein the thickness of the conductive layer is 50-250 nm;

the tenth step: and the conducting layer of the front sub-battery is electrically connected with the back electrode section of the back sub-battery by a plurality of leads.

Compared with the prior art, the perovskite solar cell module cut at one time and the preparation method thereof have the following characteristics:

1. the segmented sub-batteries can be effectively connected in series end to end, so that the cutting times are effectively reduced, and the method is suitable for preparing large-area perovskite battery components;

2. the process is simple and easy to control, the cost is low, and the perovskite battery cannot be damaged;

3. the whole battery assembly only needs to be cut once in the process, so that the cutting cost and the error rate are greatly reduced;

4. the method is more simply applied to the laminated solar cell technology, avoids multiple cutting of a cell module and short circuit possibly caused, solves the problem of series connection of the existing laminated cell technology, and is suitable for being used in a solar cell with a complex structure.

Drawings

FIG. 1 is a schematic cross-sectional view of a laser-machined cut line of a prior art single-layer perovskite solar cell assembly;

FIG. 2 is a schematic cross-sectional view of a laser-machined cut line of a prior art laminated perovskite solar cell assembly;

FIG. 3 is a schematic cross-sectional view of a cut-line process of a first preferred embodiment of a single-layer perovskite solar cell module of the present invention;

FIG. 4 is a schematic cross-sectional view of a cut line process of a first preferred embodiment of a laminated perovskite solar cell assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of a cut-line process of a second preferred embodiment of a single-layer perovskite solar cell module of the present invention;

FIG. 6 is a schematic cross-sectional view of a cut line process of a second preferred embodiment of a laminated perovskite solar cell assembly of the present invention;

FIG. 7 is a top view of FIG. 3;

fig. 8 is a schematic diagram of four structural configurations of the conductive wire of fig. 7.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

referring to fig. 3 and fig. 7, a first preferred embodiment of a single-cut perovskite solar cell module of the present invention belongs to a first single-layer perovskite solar cell module. The battery pack comprises a plurality of sub-batteries A which are sequentially connected in series end to end. Each sub-battery A sequentially comprises a substrate 1, a conducting layer 2, a front electric transmission layer 3, a perovskite layer 4, a rear electric transmission layer 5 and a back electrode 6 from bottom to top.

Cutting lines P1 are disposed between two adjacent sub-batteries a, respectively, and are equidistant from each other and parallel to each other. The cutting line P1 cuts off the back electrode 6, the rear electrical transmission layer 5, the perovskite layer 4, the front electrical transmission layer 3 and the conductive layer 2 from top to bottom in sequence. The n sub-cells a are provided with n-1 cutting lines P1 arranged at intervals from the front end to the rear end of the cell assembly, wherein the scraping lines P2 are respectively provided in sequence from the second sub-cell a near the front end of the cell assembly to the side of the nth sub-cell a at the rear end. The wiping line P2 is located on the front side of the sub-battery a and adjacent to the cutting line P1 located on the side. The film scraping line P2 cuts off the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4 and the front electric transmission layer 3 from top to bottom in sequence, and the conductive layer 2 is reserved, so that a conductive section 9 with the width equal to that of the film scraping line P2 is exposed on the conductive layer 2 of the sub-battery A.

The battery assembly is also provided with a plurality of leads 8, and each lead 8 is arranged at intervals and is used for electrically connecting the back electrode 6 of the previous sub-battery A with the conductive segment 9 of the next sub-battery A.

Example 2:

referring to fig. 4, the invention also discloses a second once-cut perovskite solar cell module, belonging to the first stacked perovskite solar cell module. The battery pack comprises a plurality of sub-batteries A which are sequentially connected in series end to end. Each sub-battery A sequentially comprises a substrate 1, a conducting layer 2, a lower battery 7, a front electric transmission layer 3, a perovskite layer 4, a rear electric transmission layer 5 and a back electrode 6 from bottom to top.

Cutting lines P1 are disposed between two adjacent sub-batteries a, respectively, and are equidistant from each other and parallel to each other. The cutting line P1 cuts off the back electrode 6, the rear electrical transmission layer 5, the perovskite layer 4, the front electrical transmission layer 3, the lower battery 7 and the conductive layer 2 from top to bottom in sequence. The n sub-cells a are provided with n-1 cutting lines P1 arranged at intervals from the front end to the rear end of the cell assembly, wherein the scraping lines P2 are respectively provided in sequence from the second sub-cell a near the front end of the cell assembly to the side of the nth sub-cell a at the rear end. The wiping line P2 is located on the front side of the sub-battery a and adjacent to the cutting line P1 located on the side. The film scraping line P2 cuts off the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3 and the lower battery 7 from top to bottom in sequence, and the conducting layer 2 is reserved, so that the conducting section 9 with the width equal to that of the film scraping line P2 is exposed on the conducting layer 2 of the sub-battery A.

Example 3:

referring to fig. 5, the invention also discloses a third once-cut perovskite solar cell module, belonging to the second single-layer perovskite solar cell module. The battery pack comprises a plurality of sub-batteries A which are sequentially connected in series end to end. Each sub-battery A sequentially comprises a substrate 1, a back electrode 6, a rear electric transmission layer 5, a perovskite layer 4, a front electric transmission layer 3 and a conducting layer 2 from bottom to top.

Cutting lines P1 are disposed between two adjacent sub-batteries a, respectively, and are equidistant from each other and parallel to each other. The cutting line P1 cuts off the conductive layer 2, the front electrical transmission layer 3, the perovskite layer 4, the rear electrical transmission layer 5 and the back electrode 6 from top to bottom in sequence. The n sub-cells a are provided with n-1 cutting lines P1 arranged at intervals from the front end to the rear end of the cell assembly, wherein the scraping lines P2 are respectively provided in sequence from the second sub-cell a near the front end of the cell assembly to the side of the nth sub-cell a at the rear end. The wiping line P2 is located on the front side of the sub-battery a and adjacent to the cutting line P1 located on the side. The film scraping line P2 cuts off the conductive layer 2, the front electrical transmission layer 3, the perovskite layer 4 and the rear electrical transmission layer 5 from top to bottom in sequence, and the back electrode 6 is reserved, so that a back electrode section 10 which is equal to the width of the film scraping line P2 is exposed on the back electrode 6 of the sub-battery A.

The battery pack is further provided with a plurality of leads 8, and each lead 8 is arranged at intervals and is used for electrically connecting the conductive layer 2 of the previous sub-battery A with the back electrode section 10 of the next sub-battery A.

Example 4:

referring to fig. 6, the invention also discloses a fourth once-cut perovskite solar cell module, belonging to the second stacked perovskite solar cell module. The battery pack comprises a plurality of sub-batteries A which are sequentially connected in series end to end. Each sub-battery A sequentially comprises a substrate 1, a back electrode 6, a lower battery 7, a rear electric transmission layer 5, a perovskite layer 4, a front electric transmission layer 3 and a conducting layer 2 from bottom to top.

Cutting lines P1 are disposed between two adjacent sub-batteries a, respectively, and are equidistant from each other and parallel to each other. The cutting line P1 cuts off the conductive layer 2, the front electrical transmission layer 3, the perovskite layer 4, the rear electrical transmission layer 5, the lower battery 7 and the back electrode 6 from top to bottom in sequence. The n sub-cells a are provided with n-1 cutting lines P1 arranged at intervals from the front end to the rear end of the cell assembly, wherein the scraping lines P2 are respectively provided in sequence from the second sub-cell a near the front end of the cell assembly to the side of the nth sub-cell a at the rear end. The wiping line P2 is located on the front side of the sub-battery a and adjacent to the cutting line P1 located on the side. The film scraping line P2 cuts off the conductive layer 2, the front electrical transmission layer 3, the perovskite layer 4, the rear electrical transmission layer 5 and the lower battery 7 from top to bottom in sequence, and the back electrode 6 is reserved, so that a section of the back electrode section 10 which is equal to the width of the film scraping line P2 is exposed on the back electrode 6 of the sub-battery A.

In the above embodiment, the width of the cutting line P1 is 10 nm-1 μm; the number of said cutting lines P1 is determined according to the need for several cells in series, n cells in series requiring n-1 equidistant cutting lines. The width of the film scraping line P2 is 10 mu m-5 cm.

The substrate 1 is made of any one of glass, toughened glass, quartz, carbon, silicon and organic flexible materials.

The conductive layer 2 is made of any one of TCO (transparent conductive oxide), ITO (indium-doped tin oxide), FTO (fluorine-doped tin oxide), and AZO (aluminum-doped zinc oxide).

The front electrical transmission layer 3 is made of Transparent Conductive Oxide (TCO), indium-doped tin oxide (ITO), fluorine-doped tin oxide (FTO), aluminum-doped zinc oxide (AZO), gold, silver, aluminum, or copper.

The perovskite layer 4 is made of any one of methylamine lead iodide, formamidine lead iodide and cesium lead iodide.

The material of the rear electrical transmission layer 5 is any one of Transparent Conductive Oxide (TCO), indium-doped tin oxide (ITO), fluorine-doped tin oxide (FTO), aluminum-doped zinc oxide (AZO), gold, silver, aluminum, and copper.

The back electrode 6 is made of any one of metal, carbon and TCO.

The lower battery 7 is any one of a copper indium gallium selenide battery, a cadmium telluride battery, a gallium arsenide battery, a thin film silicon battery, an organic battery and a dye sensitized battery.

The lead 8 is made of copper or silver. The following four connection modes can be adopted: a) any of a single linear shape, b) a chevron shape, c) an inverted U shape, or d) a monolithic shape, as shown in FIG. 8. In the a) single wire type, the wire 8 is a thin wire. In the b) herringbone, the conducting wire 8 is a herringbone bent thin conducting wire. In c) the inverted U shape, the wire 8 is a thin wire bent in an inverted U shape. In the monolithic type d), the lead 8 is a sheet-like conductor.

The cutting line P1 can be processed by laser cutting or by physical cutting with a blade.

Example 5:

the invention also discloses a first preparation method of the perovskite solar cell module cut at one time as in the previous embodiment 1, which comprises the following steps:

the first step is as follows: cleaning the substrate 1;

the second step is that: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-AZO) on a substrate 1 to prepare a conductive layer 2, wherein the thickness of the conductive layer 2 is 50-250 nm; the preparation method comprises evaporation or magnetron sputtering or CVD (chemical vapor deposition) or ALD (single atomic layer deposition);

the third step: plating a front electric transmission layer 3 on the conducting layer 2, wherein the thickness of the front electric transmission layer 3 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the fourth step: preparing a perovskite layer 4 on the front electrical transmission layer 3, wherein the thickness of the perovskite layer 4 is 50-550 nm; the preparation method comprises a one-step method or a two-step method;

the fifth step: preparing a rear electrical transmission layer 5 on the perovskite layer 4, wherein the thickness of the rear electrical transmission layer 5 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

and a sixth step: preparing a back electrode 6 on the back electric transmission layer 5, wherein the thickness of the back electrode 6 is 10-300 nm; the preparation method comprises evaporation plating or magnetron sputtering;

the seventh step: processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product manufactured in the sixth step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries A, wherein the cutting lines P1 sequentially cut off the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3 and the conductive layer 2 from top to bottom, the cutting width of the cutting lines P1 is 10 nm-1 mu m, the number of laser cutting lines is determined according to the requirement of a plurality of series batteries, and n-1 equidistant cutting lines are required for the n series batteries;

eighth step: processing a film scraping line P2 by using a film scraping method, cutting the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4 and the front electric transmission layer 3 by using the film scraping line P2 from top to bottom, reserving the conductive layer 2, wherein the width of the scraping line of the film scraping line P2 is 10 micrometers-5 cm, the number of the scraping lines is determined according to the number of required series-connected batteries, and n-1 equidistant scraping lines are required for n series-connected batteries;

the ninth step: and a plurality of leads 8 which are arranged at intervals are used for electrically connecting the back electrode 6 of the previous sub-cell A with the conductive section 9 of the next sub-cell A, and the leads 8 are made of copper or silver.

Example 6:

the invention also discloses a second preparation method of the once-cut perovskite solar cell module as described in the previous embodiment 2, comprising the following steps:

the first step is as follows: cleaning the substrate 1;

the second step is that: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-AZO) on a substrate 1 to prepare a conductive layer 2, wherein the thickness of the conductive layer 2 is 50-250 nm; the preparation method comprises evaporation plating, magnetron sputtering, CVD or ALD;

the third step: preparing a lower battery 7 on the conducting layer 2 in a lamination processing mode, wherein the lower battery 7 is any one of a copper indium gallium selenide battery, a cadmium telluride battery, a gallium arsenide battery, a thin film silicon battery, an organic battery and a dye sensitized battery;

the fourth step: plating a front electric transmission layer 3 on the lower battery 7, wherein the thickness of the front electric transmission layer 3 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the fifth step: preparing a perovskite layer 4 on the front electrical transmission layer 3, wherein the thickness of the perovskite layer 4 is 50-550 nm; the preparation method comprises a one-step method or a two-step method;

and a sixth step: preparing a rear electrical transmission layer 5 on the perovskite layer 4, wherein the thickness of the rear electrical transmission layer 5 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the seventh step: preparing a back electrode 6 on the back electric transmission layer 5, wherein the thickness of the back electrode 6 is 10-300 nm; the preparation method comprises evaporation plating or magnetron sputtering;

eighth step: processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product prepared in the seventh step by using a laser cutting mode or a blade cutting mode, preparing n sub-batteries A, sequentially cutting off the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3, the lower battery 7 and the conducting layer 2 by using the cutting lines P1 from top to bottom, wherein the cutting width of the cutting lines P1 is 10 nm-1 mu m, the number of the laser cutting lines is determined according to the requirement of a plurality of series batteries, and the n series batteries need n-1 equidistant cutting lines;

the ninth step: processing a film scraping line P2 by using a film scraping method, cutting the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3 and the lower battery 7 by using the film scraping line P2 from top to bottom, reserving the conductive layer 2, wherein the width of the scraping line of the film scraping line P2 is 10 micrometers-5 cm, the number of the scraping lines is determined according to the requirement of a plurality of series batteries, and n-1 equidistant scraping lines are required for n series batteries;

the tenth step: and a plurality of leads 8 which are arranged at intervals are used for electrically connecting the back electrode 6 of the previous sub-cell A with the conductive section 9 of the next sub-cell A, and the leads 8 are made of copper or silver.

Example 7:

the invention also discloses a third preparation method of the perovskite solar cell module cut at one time, which comprises the following steps:

the first step is as follows: cleaning the substrate 1;

the second step is that: preparing a back electrode 6 on the substrate 1, wherein the thickness of the back electrode 6 is 10-300 nm; the preparation method comprises evaporation plating or magnetron sputtering;

the third step: plating a back electric transmission layer 5 on the back electrode 6, wherein the thickness of the back electric transmission layer 5 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the fourth step: preparing a perovskite layer 4 on the back electric transmission layer 5, wherein the thickness of the perovskite layer 4 is 50-550 nm; the preparation method comprises a one-step method or a two-step method;

the fifth step: preparing a front electrical transmission layer 3 on the perovskite layer 4, wherein the thickness of the front electrical transmission layer 3 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

and a sixth step: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-doped tin oxide) on the front electric transmission layer 3 to prepare a conductive layer 2, wherein the thickness of the conductive layer 2 is 50-250 nm; the preparation method comprises evaporation plating, magnetron sputtering, CVD or ALD;

the seventh step: processing n-1 cutting lines P1 on the semi-finished product manufactured in the sixth step by using a laser cutting mode or a blade cutting mode, preparing n sub-batteries A, sequentially cutting the conducting layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5 and the back electrode 6 by using the cutting lines P1 from top to bottom, wherein the cutting width of the cutting lines P1 is 10 nm-1 mu m, the number of the cutting lines is determined according to the requirement of a plurality of series batteries, and the n series batteries need n-1 equidistant cutting lines;

eighth step: processing a film scraping line P2 by using a film scraping method, wherein the film scraping line P2 cuts the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4 and the rear electric transmission layer 5 from top to bottom, the back electrode 6 is reserved, the width of the scraping line of the film scraping line P2 is 10 micrometers-5 cm, the number of the scraping lines is determined according to the number of required series-connected batteries, and n-1 equidistant scraping lines are required for n series-connected batteries;

the ninth step: and the conducting layer 2 of the previous sub-battery A is electrically connected with the back electrode section 10 of the next sub-battery A by a plurality of conducting wires 8, and the conducting wires 8 are made of copper or silver.

Example 8:

the invention also discloses a fourth preparation method of the perovskite solar cell module cut at one time as described in the previous embodiment 4, which comprises the following steps:

the first step is as follows: cleaning the substrate 1;

the third step: preparing a lower battery 7 on the back electrode 6 in a lamination processing mode, wherein the lower battery 7 is any one of a copper indium gallium selenide battery, a cadmium telluride battery, a gallium arsenide battery, a thin film silicon battery, an organic battery and a dye sensitized battery;

the fourth step: plating a rear electric transmission layer 5 on the lower battery 7, wherein the thickness of the rear electric transmission layer 5 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the fifth step: preparing a perovskite layer 4 on the back electric transmission layer 5, wherein the thickness of the perovskite layer 4 is 50-550 nm; the preparation method comprises a one-step method or a two-step method;

and a sixth step: preparing a front electrical transmission layer 3 on the perovskite layer 4, wherein the thickness of the front electrical transmission layer 3 is 5-100 nm; the preparation method comprises evaporation plating, magnetron sputtering, solution method, CVD or ALD;

the seventh step: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-doped tin oxide) on the front electric transmission layer 3 to prepare a conductive layer 2, wherein the thickness of the conductive layer 2 is 50-250 nm; the preparation method comprises evaporation plating, magnetron sputtering, CVD or ALD;

eighth step: processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product prepared in the seventh step by using a laser cutting mode or a blade cutting mode, preparing n sub-batteries A, sequentially cutting the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5, the lower battery 7 and the back electrode 6 by using the cutting lines P1 from top to bottom, wherein the cutting width of the cutting lines P1 is 10 nm-1 mu m, the number of the laser cutting lines is determined according to the requirement of a plurality of series batteries, and the n series batteries need n-1 equidistant cutting lines;

the ninth step: processing a film scraping line P2 by using a film scraping method, wherein the film scraping line P2 cuts the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5 and the lower battery 7 from top to bottom, the back electrode 6 is reserved, the width of the scraping line of the film scraping line P2 is 10 micrometers-5 cm, the number of the scraping lines is determined according to the number of series batteries, and n-1 equidistant scraping lines are needed by n series batteries;

the tenth step: and a plurality of leads 8 which are arranged at intervals are used for electrically connecting the conductive layer 2 of the previous sub-cell A with the back electrode section 10 of the next sub-cell A, and the leads 8 are made of copper or silver.

The method for manufacturing a single-cut perovskite solar cell module according to the present invention will be further described with reference to the following specific examples.

Example 9:

the fifth preparation method of the perovskite solar cell module cut at one time comprises the following steps:

the first step is as follows: the glass substrate 1 is cleaned.

The second step is that: TCO is plated on the glass substrate 1 in an evaporation mode to prepare a conducting layer 2, and the thickness of the conducting layer 2 is 50-250 nm; .

The third step: coating FTO on the conductive layer 2 by adopting an evaporation method to prepare a front electric transmission layer 3, wherein the thickness of the front electric transmission layer 3 is 5-100 nm;

the fourth step: and preparing a perovskite layer 4 containing methylamine lead iodide on the front electrical transmission layer 3 by adopting a one-step method, wherein the thickness of the perovskite layer 4 is 50-550 nm.

The fifth step: and (3) coating AZO on the perovskite layer 4 in an evaporation mode, and preparing the rear electric transmission layer 5, wherein the thickness of the rear electric transmission layer 5 is 5-100 nm.

And a sixth step: and plating metal on the back electric transmission layer 5 by adopting an evaporation plating mode to prepare a metal back electrode 6, wherein the thickness of the metal back electrode 6 is 10-300 nm.

The seventh step: and (3) processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product prepared in the sixth step in a laser cutting mode to prepare n sub-batteries A, wherein the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3 and the conductive layer 2 are sequentially cut off from top to bottom by the cutting lines P1, and the cutting width of the cutting lines P1 is 10 nm-1 mu m.

Eighth step: and (3) processing a film scraping line P2 by using a film scraping method, wherein the film scraping line P2 cuts the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4 and the front electric transmission layer 3 from top to bottom, the conductive layer 2 is reserved, the scraping line width of the film scraping line P2 is 10 mu m-5 cm, and the number of the film scraping lines P2 is equal to that of the cutting lines P1.

The ninth step: the back electrode 6 of the previous sub-cell a is electrically connected with the conductive segment 9 of the next sub-cell a by a plurality of copper wires 8 which are arranged at intervals.

Example 10:

the sixth preparation method of the perovskite solar cell module cut once comprises the following steps:

the first step is as follows: the tempered glass substrate 1 is cleaned.

The second step is that: and (2) coating ITO on the toughened glass substrate 1 in an evaporation mode to prepare the conducting layer 2, wherein the thickness of the conducting layer 2 is 50-250 nm.

The third step: and preparing a lower battery 7 on the conducting layer 2 in a laminating mode, wherein the lower battery 7 is a copper indium gallium selenide battery.

The fourth step: and coating FTO on the lower battery 7 by adopting an evaporation method to prepare the front electric transmission layer 3, wherein the thickness of the front electric transmission layer 3 is 5-100 nm.

The fifth step: the perovskite layer 4 containing formamidine lead iodide is prepared on the front electrical transmission layer 3 by adopting a two-step method, and the thickness of the perovskite layer 4 is 50-550 nm.

And a sixth step: and (3) coating ITO on the perovskite layer 4 in a CVD mode, and preparing a rear electric transmission layer 5, wherein the thickness of the rear electric transmission layer 5 is 5-100 nm.

The seventh step: and plating metal on the back electric transmission layer 5 by adopting an evaporation plating mode to prepare a metal back electrode 6, wherein the thickness of the metal back electrode 6 is 10-300 nm.

Eighth step: and processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product prepared in the seventh step in a laser cutting mode to prepare n sub-batteries A, wherein the back electrode 6, the rear electric transmission layer 5, the perovskite layer 4, the front electric transmission layer 3, the lower battery 7 and the conductive layer 2 are sequentially cut off from top to bottom by the cutting lines P1, and the cutting width of the cutting lines P1 is 10 nm-1 mu m.

The ninth step: and (3) processing a film scraping line P2 by using a film scraping method, wherein the film scraping line P2 cuts the back electrode 6, the rear electric property transmission layer 5, the perovskite layer 4, the front electric property transmission layer 3 and the lower battery 7 from top to bottom, the conductive layer 2 is reserved, and the width of the film scraping line P2 is 10 micrometers-5 cm.

The tenth step: the back electrode 6 of the previous sub-cell a is electrically connected with the conductive segment 9 of the next sub-cell a by a plurality of copper wires 8 which are arranged at intervals.

Example 11:

the seventh preparation method of the perovskite solar cell module cut once comprises the following steps:

the first step is as follows: the organic flexible substrate 1 is cleaned.

The second step is that: FTO is plated on the organic flexible substrate 1 in a magnetron sputtering mode to prepare a back electrode 6, and the thickness of the back electrode 6 is 10-300 nm.

The third step: and (3) coating ITO on the back electrode 6 by adopting a solution method, and preparing the rear electric transmission layer 5, wherein the thickness of the rear electric transmission layer 5 is 5-100 nm.

The fourth step: and preparing the perovskite layer 4 containing the cesium, lead and iodine on the back electric transmission layer 5 by adopting a one-step method, wherein the thickness of the perovskite layer 4 is 50-550 nm.

The fifth step: and (3) plating AZO on the perovskite layer 4 in an ALD mode to prepare the front electric transmission layer 3, wherein the thickness of the front electric transmission layer 3 is 5-100 nm.

And a sixth step: TCO is plated on the front electric transmission layer 3 in a magnetron sputtering mode, and the conducting layer 2 is prepared, wherein the thickness of the conducting layer 2 is 50-250 nm.

The seventh step: and (3) processing n-1 cutting lines P1 on the semi-finished product prepared in the sixth step in a blade cutting mode to prepare n sub-batteries A, wherein the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5 and the back electrode 6 are sequentially cut off from top to bottom by the cutting lines P1, and the cutting width of the cutting lines P1 is 10 nm-1 mu m.

Eighth step: and (3) processing a film scraping line P2 by using a film scraping method, wherein the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4 and the rear electric transmission layer 5 are cut off from top to bottom by the film scraping line P2, the back electrode 6 is reserved, and the width of the film scraping line P2 is 10 mu m-5 cm.

The ninth step: the conductive layer 2 of the previous sub-cell a is conductively connected to the back electrode segment 10 of the next sub-cell a by silver wires 8.

Example 12:

the eighth preparation method of the perovskite solar cell module cut once comprises the following steps:

the first step is as follows: the quartz substrate 1 is cleaned.

The second step is that: FTO is plated on the quartz substrate 1 in an evaporation mode to prepare the back electrode 6, and the thickness of the back electrode 6 is 10-300 nm.

The third step: and preparing a lower battery 7 on the back electrode 6 in a laminating mode, wherein the lower battery 7 is a thin film silicon battery.

The fourth step: and (3) coating ITO on the lower battery 7 by adopting ALD (atomic layer deposition), and preparing the rear electric transmission layer 5, wherein the thickness of the rear electric transmission layer 5 is 5-100 nm.

The fifth step: and preparing the perovskite layer 4 containing formamidine lead iodide on the back electric transmission layer 5 by adopting a two-step method, wherein the thickness of the perovskite layer 4 is 50-550 nm.

And a sixth step: and (3) coating ITO on the perovskite layer 4 in a CVD mode to prepare the front electric transmission layer 3, wherein the thickness of the front electric transmission layer 3 is 5-100 nm.

The seventh step: and (3) coating ITO on the front electric transmission layer 3 by adopting CVD to prepare a conductive layer 2, wherein the thickness of the conductive layer 2 is 50-250 nm.

Eighth step: and (3) processing n-1 cutting lines P1 which are equidistant and parallel to each other on the semi-finished product prepared in the seventh step in a blade cutting mode to prepare n sub-batteries A, wherein the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5, the lower battery 7 and the back electrode 6 are sequentially cut off by the cutting lines P1 from top to bottom, and the cutting width of the cutting lines P1 is 10 nm-1 mu m.

The ninth step: and (3) processing a film scraping line P2 by using a film scraping method, wherein the conductive layer 2, the front electric transmission layer 3, the perovskite layer 4, the rear electric transmission layer 5 and the lower battery 7 are cut off from top to bottom by the film scraping line P2, the back electrode 6 is reserved, and the width of the film scraping line P2 is 10 mu m-5 cm.

The tenth step: the conductive layer 2 of the previous sub-cell a is electrically connected with the back electrode segment 10 of the next sub-cell a by a plurality of silver wires 8 which are arranged at intervals.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The perovskite solar cell module cut once comprises a plurality of sub-cells (A) which are sequentially connected end to end in series, and is characterized in that each sub-cell (A) sequentially comprises a substrate (1), a conducting layer (2), a front electric transmission layer (3), a perovskite layer (4), a rear electric transmission layer (5) and a back electrode (6) from bottom to top, cutting lines (P1) are respectively arranged between every two adjacent sub-cells (A), the cutting lines (P1) sequentially cut off the back electrode (6), the rear electric transmission layer (5), the perovskite layer (4), the front electric transmission layer (3) and the conducting layer (2) from top to bottom, n sub-cells (A) are provided with n-1 cutting lines (P1) which are arranged at intervals from the front end to the rear end of the cell module, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell (A) which starts from the second sub-cell (A) close to the front end of the cell module The film scraping line (P2) is positioned on the front side of the sub-battery (A) and is adjacent to the cutting line (P1) positioned on the front side, the back electrode (6), the rear electric transmission layer (5), the perovskite layer (4) and the front electric transmission layer (3) are sequentially cut off from top to bottom by the film scraping line (P2), and the conductive layer (2) is reserved, so that a conductive section (9) with the width equal to that of the film scraping line (P2) is exposed on the conductive layer (2) of the sub-battery (A); the battery pack is also provided with a plurality of conducting wires (8), and each conducting wire (8) is used for respectively and electrically connecting the back electrode (6) of the previous sub-battery (A) with the conducting segment (9) of the next sub-battery (A).

2. The perovskite solar cell module cut once comprises a plurality of sub-cells (A) which are sequentially connected end to end, and is characterized in that each sub-cell (A) sequentially comprises a substrate (1), a conducting layer (2), a lower cell (7), a front electric transmission layer (3), a perovskite layer (4), a rear electric transmission layer (5) and a back electrode (6) from bottom to top, cutting lines (P1) are respectively arranged between every two adjacent sub-cells (A), the cutting lines (P1) sequentially cut off the back electrode (6), the rear electric transmission layer (5), the perovskite layer (4), the front electric transmission layer (3), the lower cell (7) and the conducting layer (2) from top to bottom, n-1 cutting lines (P1) are arranged at intervals from the front end to the rear end of the cell module, wherein the nth sub-cell (A) arranged from the second sub-cell (A) close to the front end of the cell module starts to the nth sub-cell (A) The conductive layer (2) is reserved, so that a conductive section (9) which is equal to the width of the film scraping line (P2) is exposed on the conductive layer (2) of the sub-battery (A); the battery pack is also provided with a plurality of conducting wires (8), and each conducting wire (8) is used for respectively and electrically connecting the back electrode (6) of the previous sub-battery (A) with the conducting segment (9) of the next sub-battery (A).

3. The perovskite solar cell module cut once comprises a plurality of sub-cells (A) which are sequentially connected end to end, and is characterized in that each sub-cell (A) sequentially comprises a substrate (1), a back electrode (6), a back electric transmission layer (5), a perovskite layer (4), a front electric transmission layer (3) and a conductive layer (2) from bottom to top, cutting lines (P1) are respectively arranged between every two adjacent sub-cells (A), the cutting lines (P1) sequentially cut off the conductive layer (2), the front electric transmission layer (3), the perovskite layer (4), the back electric transmission layer (5) and the back electrode (6) from top to bottom, n sub-cells (A) are provided with n-1 cutting lines (P1) which are arranged at intervals from the front end to the back end of the cell module, wherein a film scraping line is sequentially arranged on one side of the nth sub-cell (A) which starts from the second sub-cell (A) close to the front end of the cell module The film scraping line (P2) is positioned on the front side of the sub-battery (A) and is adjacent to the cutting line (P1) positioned on the front side, the conductive layer (2), the front electric transmission layer (3), the perovskite layer (4) and the rear electric transmission layer (5) are sequentially cut off from top to bottom by the film scraping line (P2), and the back electrode (6) is reserved, so that a back electrode section (10) which is equal to the width of the film scraping line (P2) is exposed on the back electrode (6) of the sub-battery (A); the battery pack is further provided with a plurality of conducting wires (8), and each conducting wire (8) is used for electrically connecting the conducting layer (2) of the previous sub-battery (A) with the back electrode section (10) of the next sub-battery (A).

4. The perovskite solar cell module cut once comprises a plurality of sub-cells (A) which are sequentially connected end to end, and is characterized in that each sub-cell (A) sequentially comprises a substrate (1), a back electrode (6), a lower cell (7), a rear electric transmission layer (5), a perovskite layer (4), a front electric transmission layer (3) and a conducting layer (2) from bottom to top, cutting lines (P1) are respectively arranged between every two adjacent sub-cells (A), the cutting lines (P1) sequentially cut off the conducting layer (2), the front electric transmission layer (3), the perovskite layer (4), the rear electric transmission layer (5), the lower cell (7) and the back electrode (6) from top to bottom, n-1 cutting lines (P1) are arranged at intervals from the front end to the rear end of the cell module, wherein the nth sub-cell (A) at the rear end starts from the second sub-cell (A) close to the front end of the cell module) The film scraping line (P2) is arranged on one side of the sub-battery (A) in sequence and is adjacent to the cutting line (P1) on the side, the conductive layer (2), the front electric property transmission layer (3), the perovskite layer (4), the rear electric property transmission layer (5) and the lower battery (7) are cut off from the top to the bottom of the film scraping line (P2) in sequence, and the back electrode (6) is reserved, so that a back electrode section (10) which is equal to the width of the film scraping line (P2) is exposed on the back electrode (6) of the sub-battery (A); the battery pack is further provided with a plurality of conducting wires (8), and each conducting wire (8) is used for electrically connecting the conducting layer (2) of the previous sub-battery (A) with the back electrode section (10) of the next sub-battery (A).

5. The single-cut perovskite solar cell module as claimed in claim 1 or 2 or 3 or 4, wherein the width of the cutting line (P1) is 10nm to 1 μm; the number of said cutting lines (P1) is determined according to the need of several series cells, n series cells require n-1 equidistant cutting lines.

6. The single-cut perovskite solar cell module as claimed in claim 1 or 2 or 3 or 4, wherein the substrate (1) is made of any one of glass, tempered glass, quartz, carbon, silicon and organic flexible materials, the conductive layer (2) is made of any one of TCO, ITO, FTO and AZO, the back electrode (6) is made of any one of metal, carbon and TCO, and the conducting wire (8) is made of copper or silver.

7. A method for preparing a once-cut perovskite solar cell module as claimed in claim 1, characterized by comprising the steps of:

the first step is as follows: cleaning the substrate (1);

the second step is that: TCO or ITO or FTO or AZO is plated on the substrate (1) to prepare the conducting layer (2), and the thickness of the conducting layer (2) is 50-250 nm;

the third step: plating a front electric transmission layer (3) on the conductive layer (2), wherein the thickness of the front electric transmission layer (3) is 5-100 nm;

the fourth step: preparing a perovskite layer (4) on the front electrical transmission layer (3), wherein the thickness of the perovskite layer (4) is 50-550 nm;

the fifth step: preparing a rear electrical transmission layer (5) on the perovskite layer (4), wherein the thickness of the rear electrical transmission layer (5) is 5-100 nm;

and a sixth step: preparing a back electrode (6) on the back electric transmission layer (5), wherein the thickness of the back electrode (6) is 10-300 nm;

the seventh step: processing n-1 cutting lines (P1) on the semi-finished product prepared in the sixth step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries (A), wherein the cutting width of the cutting lines (P1) is 10 nm-1 mu m;

eighth step: processing a film scraping line (P2) by using a film scraping method, wherein the width of the film scraping line (P2) is 10 mu m-5 cm;

the ninth step: the back electrode (6) of the previous sub-battery (A) is electrically connected with the conductive segment (9) of the next sub-battery (A) by a plurality of leads (8).

8. The method of making a single-cut perovskite solar cell module as claimed in claim 2, comprising the steps of:

the first step is as follows: cleaning the substrate (1);

the third step: preparing a lower battery (7) on the conductive layer (2) by adopting a lamination processing mode;

the fourth step: plating a front electric transmission layer (3) on the lower battery (7), wherein the thickness of the front electric transmission layer (3) is 5-100 nm;

the fifth step: preparing a perovskite layer (4) on the front electrical transmission layer (3), wherein the thickness of the perovskite layer (4) is 50-550 nm;

and a sixth step: preparing a rear electrical transmission layer (5) on the perovskite layer (4), wherein the thickness of the rear electrical transmission layer (5) is 5-100 nm;

the seventh step: preparing a back electrode (6) on the back electric transmission layer (5), wherein the thickness of the back electrode (6) is 10-300 nm;

eighth step: processing n-1 cutting lines (P1) on the semi-finished product prepared in the seventh step in a laser cutting mode or a blade cutting mode to prepare n sub-batteries (A), wherein the cutting width of the cutting lines (P1) is 10 nm-1 mu m;

the ninth step: processing a film scraping line (P2) by using a film scraping method, wherein the width of the film scraping line (P2) is 10 mu m-5 cm;

the tenth step: the back electrode (6) of the previous sub-battery (A) is electrically connected with the conductive segment (9) of the next sub-battery (A) by a plurality of leads (8).

9. The method of making a single-cut perovskite solar cell module as claimed in claim 3, comprising the steps of:

the first step is as follows: cleaning the substrate (1);

the second step is that: preparing a back electrode (6) on the substrate (1), wherein the thickness of the back electrode (6) is 10-300 nm;

the third step: plating a back electric transmission layer (5) on the back electrode (6), wherein the thickness of the back electric transmission layer (5) is 5-100 nm;

the fourth step: preparing a perovskite layer (4) on the rear electrical property transmission layer (5), wherein the thickness of the perovskite layer (4) is 50-550 nm;

the fifth step: preparing a front electrical transmission layer (3) on the perovskite layer (4), wherein the thickness of the front electrical transmission layer (3) is 5-100 nm;

and a sixth step: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-doped tin oxide) on the front electric transmission layer (3) to prepare a conductive layer (2), wherein the thickness of the conductive layer (2) is 50-250 nm;

the ninth step: the conducting layer (2) of the previous sub-battery (A) is electrically connected with the back electrode section (10) of the next sub-battery (A) by a plurality of leads (8).

10. The method of making a single-cut perovskite solar cell module as claimed in claim 4, comprising the steps of:

the first step is as follows: cleaning the substrate (1);

the third step: preparing a lower battery (7) on the back electrode (6) by adopting a lamination processing mode;

the fourth step: plating a rear electric transmission layer (5) on the lower battery (7), wherein the thickness of the rear electric transmission layer (5) is 5-100 nm;

the fifth step: preparing a perovskite layer (4) on the rear electrical property transmission layer (5), wherein the thickness of the perovskite layer (4) is 50-550 nm;

and a sixth step: preparing a front electrical transmission layer (3) on the perovskite layer (4), wherein the thickness of the front electrical transmission layer (3) is 5-100 nm;

the seventh step: coating TCO (transparent conductive oxide), ITO (indium tin oxide), FTO (fluorine-doped tin oxide) or AZO (AZO-doped tin oxide) on the front electric transmission layer (3) to prepare a conductive layer (2), wherein the thickness of the conductive layer (2) is 50-250 nm;

the tenth step: the conducting layer (2) of the previous sub-battery (A) is electrically connected with the back electrode section (10) of the next sub-battery (A) by a plurality of leads (8).