Photovoltaic modules and photovoltaic systems

Abstract

This application relates to a photovoltaic module and a photovoltaic system. The photovoltaic module includes a cell layer, which includes a first busbar, a second busbar, and multiple cell strings. The first busbar connects to the first end of each cell string, and the second busbar connects to the second end of each cell string. Each cell string comprises multiple multi-celled cells connected in series, and the cell strings are connected in parallel via the first and second busbars. This application uses multiple cell strings connected in parallel and two busbars to collect current, eliminating the need for jumpers in the photovoltaic module, reducing unnecessary circuit losses, lowering the structural complexity of the photovoltaic module, and improving its efficiency.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a photovoltaic module and a photovoltaic system. Background Technology

[0002] In photovoltaic modules, solar cells convert solar radiation into usable electrical energy through the photovoltaic effect when exposed to sunlight. To generate the voltage required for operation, multiple solar cells are connected in series via busbars, allowing the electrical energy generated by each cell to be collected in the busbars and then discharged.

[0003] However, currently used photovoltaic modules typically have multiple jumpers. Some of these jumpers carry current when the photovoltaic module is working normally, resulting in a certain power loss. Moreover, the jumper installation increases the structural complexity of the photovoltaic module, which in turn limits its working efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a photovoltaic module and photovoltaic system that can improve work efficiency in response to the above-mentioned technical problems.

[0005] In a first aspect, this application provides a photovoltaic module, including a cell layer, the cell layer including a first busbar, a second busbar and a plurality of cell strings, the first busbar connecting a first end of each cell string and the second busbar connecting a second end of each cell string;

[0006] The battery string includes multiple multi-segment battery cells connected in series, and each battery string is connected in parallel through the first busbar and the second busbar.

[0007] In one embodiment, the photovoltaic module includes a jumper wire, a first end of which is connected to the first busbar, a second end of which is connected to the second busbar, and the jumper wire is connected in series with each of the cells.

[0008] In one embodiment, the photovoltaic module further includes a bypass diode disposed on the jumper.

[0009] In one embodiment, the photovoltaic module further includes a junction box, and the jumper includes a first jumper and a second jumper, wherein the first jumper is connected to the second jumper via a bypass diode disposed in the junction box.

[0010] In one embodiment, the photovoltaic module further includes a backsheet, which is stacked with the cell layer, and the junction box is disposed on the backsheet.

[0011] In one embodiment, the end of the first jumper near the junction box is bent towards the plane near the backplate to form a first lead; the end of the second jumper near the junction box is bent towards the plane near the backplate to form a second lead; both the first lead and the second lead are connected to the bypass diode inside the junction box.

[0012] In one embodiment, the photovoltaic module further includes an encapsulating film layer and a cover plate, the cover plate being disposed on the side of the cell layer away from the backsheet, the encapsulating film layer filling the space between the cover plate and the cell layer, and filling the space between the cell layer and the backsheet.

[0013] In one embodiment, the photovoltaic module further includes an isolation strip disposed between the jumper and the cell layer.

[0014] In one embodiment, the photovoltaic module further includes a first lead and a second lead, the first lead connecting one end of the first busbar to an adjacent photovoltaic module, and the second lead connecting one end of the second busbar away from the first lead and connecting to the second busbar.

[0015] In one embodiment, the photovoltaic module further includes a first lead and a second lead, the first lead being connected to a first end of the jumper and the second lead being connected to a second end of the jumper.

[0016] In one embodiment, the multi-segmented battery cell is a six-segmented battery cell.

[0017] Secondly, this application also provides a photovoltaic system, which includes a plurality of photovoltaic modules described in the above embodiments, wherein each photovoltaic module is connected in series.

[0018] The aforementioned photovoltaic module and photovoltaic system include a cell layer, which comprises a first busbar, a second busbar, and multiple cell strings. The first busbar connects to the first end of each cell string, and the second busbar connects to the second end of each cell string. Each cell string comprises multiple multi-celled cells connected in series, and the cell strings are connected in parallel via the first and second busbars. This application uses multiple cell strings connected in parallel and two busbars to summarize the current, eliminating the need for jumpers in the photovoltaic module, reducing unnecessary circuit losses, lowering the structural complexity of the photovoltaic module, and improving the efficiency of the photovoltaic module. Attached Figure Description

[0019] Figure 1 This is a circuit diagram of a photovoltaic module in one embodiment;

[0020] Figure 2This is a schematic diagram of the structure of a photovoltaic system in one embodiment;

[0021] Figure 3 This is a schematic diagram of the photovoltaic system in another embodiment;

[0022] Figure 4 This is a circuit diagram of a photovoltaic module in another embodiment;

[0023] Figure 5 This is a circuit diagram of a photovoltaic module in yet another embodiment;

[0024] Figure 6 This is a schematic diagram of the photovoltaic system in yet another embodiment;

[0025] Figure 7 This is a schematic diagram of the photovoltaic system in another embodiment;

[0026] Figure 8 This is a schematic diagram of the photovoltaic module layout in one embodiment;

[0027] Figure 9 This is a schematic diagram of the hierarchical structure of a photovoltaic module in one embodiment.

[0028] Explanation of reference numerals in the attached drawings: Photovoltaic module 100, battery string 120, jumper 130, first jumper 132, second jumper 134, first bus bar 140, second bus bar 160, first lead 182, second lead 184, bypass diode D1, backplane 190, junction box 192. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0031] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0032] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] Please see Figure 1 , Figure 2 as well as Figure 3 In one embodiment, this application provides a photovoltaic module 100, including a cell layer, the cell layer including a first bus bar 140, a second bus bar 160 and a plurality of cell strings 120, the first bus bar 140 connecting to the first end of each cell string 120, and the second bus bar 160 connecting to the second end of each cell string 120.

[0035] like Figure 1 As shown, the battery string 120 includes multiple multi-segment battery cells connected in series, and each battery string 120 is connected in parallel through a first busbar 140 and a second busbar 160. Each multi-segment battery cell can be one cell in each battery string 120. Multiple multi-segment battery cells are connected in series sequentially according to the current direction to form a battery string 120.

[0036] The first end of the battery string 120 is connected to the first busbar 140, realizing the connection of the first ends of multiple battery strings 120; the second end of the battery string 120 is connected to the second busbar 160, realizing the connection of the second ends of multiple battery strings 120, thereby realizing the parallel connection of multiple battery strings 120. Figure 1 As shown, the first end of the battery string 120 is the negative terminal of the battery string 120, and the second end of the battery string 120 is the positive terminal of the battery string 120. The first busbar 140 connects to the negative terminals of each battery string 120, serving as the negative terminal output of the photovoltaic module 100. The second busbar 160 connects to the positive terminals of each battery string 120, serving as the positive terminal output of the photovoltaic module 100. It is understood that the number of multi-segmented solar cells in the battery string 120 is not limited and can be set according to the power requirements of the photovoltaic module 100.

[0037] In one embodiment, the multi-segmented solar cell is a six-segmented solar cell, which refers to a solar cell that has been uniformly divided into six independent small solar cells using laser cutting or other cutting processes. Each small solar cell is one-sixth the size of the original solar cell. Types of multi-segmented solar cells include, but are not limited to, Passivated Emitter Reear Cell (PERC), Tunnel Oxide Passivated Contact (TOPCon), Heterojunction with Intrinsic Thin-film (HJT), Interdigitated Back Contact (IBC), Perovskite Solar Cells, Multi-Block Solar Cells (MBB), and Gridless Solar Cells (OBB).

[0038] like Figure 2 and Figure 3 As shown, this application also provides a photovoltaic system including multiple photovoltaic modules 100, which are connected in series. The connection of the photovoltaic modules 100 is as follows: Figure 2 or Figure 3 As shown, in a photovoltaic system, the positive terminal of one photovoltaic module 100 is connected to the negative terminal of another photovoltaic module 100.

[0039] When the arrangement of the photovoltaic modules 100 is different, the connection endpoints should be adjusted accordingly, such as... Figure 2 Two photovoltaic modules with the same polarity at their endpoints are placed on the same side, or as follows: Figure 3 Two photovoltaic modules 100 with different polarities are placed on the same side.

[0040] The connection between the photovoltaic modules 100 is via lead wires. These lead wires can be located within the junction boxes of the photovoltaic modules 100 (the location and number of junction boxes are described later and are not limited here). The junction boxes contain cables, and the photovoltaic modules 100 are connected via these cables. When the structure of the photovoltaic modules 100 is as follows... Figure 1 As shown, the first busbar 140 of one photovoltaic module 100 is plugged into the second busbar 160 of another photovoltaic module 100.

[0041] Please see Figure 4 In one embodiment, the photovoltaic module 100 further includes a first lead 182 and a second lead 184. The first lead 182 connects one end of the first busbar 140 and the adjacent photovoltaic module 100, and the second lead 184 connects to one end of the second busbar 160 away from the first lead 182 and is connected to the second busbar 160.

[0042] The leads include a first lead 182 and a second lead 184. The first lead 182 is connected to one end of the first busbar 140, and the second lead 184 is connected to the other end of the second busbar 160, such that the first lead 182 and the second lead 184 are distributed diagonally based on the photovoltaic module 100. Applications: Figure 2 or Figure 3 At that time, Figure 2 and Figure 3 In the diagram, the line segment in the upper left corner represents the first lead-out line 182. The line segment connecting the two photovoltaic modules 100 is formed by connecting the second lead-out line 184 of the left photovoltaic module 100 and the first lead-out line 182 of the right photovoltaic module 100. (For...) Figure 2 The line segment in the lower right corner represents the second lead-out line 184; (Regarding...) Figure 3 The line segment in the upper right corner represents the second lead 184. By drawing the first lead 182 and the second lead 184 diagonally, multiple photovoltaic modules 100 are connected in series, reducing the length of the leads when connecting each photovoltaic module 100 and completing the current collection of the cell layers of the photovoltaic module 100.

[0043] The aforementioned photovoltaic module 100 includes a cell layer, which comprises a first busbar 140, a second busbar 160, and multiple cell strings 120. The first busbar 140 connects to the first end of each cell string 120, and the second busbar 160 connects to the second end of each cell string 120. Each cell string 120 comprises multiple multi-celled cells connected in series, and each cell string 120 is connected in parallel via the first busbar 140 and the second busbar 160. This application uses multiple cell strings 120 connected in parallel and two busbars to summarize the current, eliminating the need for jumpers 130 in the photovoltaic module 100. This reduces unnecessary circuit losses, lowers the structural complexity of the photovoltaic module 100, and improves its efficiency. Furthermore, eliminating the jumper reduces the material consumption in the manufacture of the photovoltaic module 100, lowers material costs, and improves the economic benefits of the photovoltaic module 100.

[0044] In one embodiment, such as Figure 5 As shown, the photovoltaic module 100 includes a jumper 130, the first end of which is connected to the first busbar 140, the second end of which is connected to the second busbar 160, and the jumper 130 is connected in parallel with each cell string 120.

[0045] The photovoltaic module 100 also includes a jumper wire 130, which is disposed on the cell layer and connected in parallel with each cell string 120, and connected to the first busbar 140 and the second busbar 160. Further, in one embodiment, as... Figure 5As shown, the photovoltaic module 100 also includes a bypass diode D1, which is located at jumper 130.

[0046] A jumper 130 is connected in parallel between the battery strings 120, and a bypass diode D1 is installed on the jumper 130. When multiple battery cells in the battery string 120 experience open circuits or are shaded, causing malfunctions in the battery string 120, current is diverted through the jumper 130, reducing the impact on the operation of the photovoltaic module 100 and improving its operational reliability. Simultaneously, the jumper 130 does not carry current during normal operation of the battery string 120, resulting in no power loss and further improving the operating efficiency of the photovoltaic module 100.

[0047] Jumper wire 130 can use wide, thin metal strips with a thickness not exceeding 0.3mm, such as 3×0.2mm, 3×0.25mm, 4×0.2mm, 4×0.25mm, 5×0.2mm, 5×0.15mm, 6×0.2mm, 6×0.15mm, etc. Due to the increased width during the stacking process, this type of metal strip has a certain strength in the lateral direction and is not easy to bend, which solves the offset problem that exists in the actual manufacturing process, reduces the difficulty of the manufacturing process, and the thinner size also avoids the problem of squeezing and generating air bubbles on multi-cell battery cells during the lamination process.

[0048] As described in the aforementioned embodiment, the connection between each photovoltaic module 100 is achieved via lead wires. These lead wires connect to the first busbar 140 or second busbar 160 of another photovoltaic module 100 via a junction box. Please refer to... Figure 5 In one embodiment, the photovoltaic module 100 further includes a first lead 182 and a second lead 184, the first lead 182 being connected to a first end of the jumper 130, and the second lead 184 being connected to a second end of the jumper 130.

[0049] Please refer to Figure 6 and Figure 7 The lead wires include a first lead wire 182 and a second lead wire 184. The first lead wire 182 is connected to the first end of the jumper wire 130, and the second lead wire 184 is connected to the second end of the jumper wire 130, such that the first lead wire 182 and the second lead wire 184 are symmetrically distributed based on the photovoltaic module 100. Applications include... Figure 6 or Figure 7 At that time, the photovoltaic module 100 in the photovoltaic system is set up and connected as follows: Figure 6 and Figure 7In the diagram, the line segment in the lower left corner represents the first lead-out line 182. The line segment connecting the two photovoltaic modules 100 is formed by connecting the second lead-out line 184 of the left photovoltaic module 100 and the first lead-out line 182 of the right photovoltaic module 100. (For...) Figure 6 The line segment in the upper right corner represents the second lead-out line 184; (Regarding...) Figure 7 The line segment in the lower right corner represents the second lead 184. By drawing the first lead 182 and the second lead 184 based on the jumper 130 position, power loss is reduced, multiple photovoltaic modules 100 are connected in series, and the current of the cell layers of the photovoltaic module 100 is collected.

[0050] Please see Figure 8 In one embodiment, the photovoltaic module 100 further includes a junction box 192, and the jumper 130 includes a first jumper 132 and a second jumper 134. The first jumper 132 is connected to the second jumper 134 through a bypass diode D1 disposed in the junction box 192.

[0051] For example, the first jumper 132 connects the first busbar 140 and the bypass diode D1 in the junction box 192, and the second jumper 134 connects the second busbar 160 and the bypass diode D1 in the junction box 192. This is equivalent to the jumper 130 being disconnected in the junction box 192. The bypass diode D1 is detachably disposed in the junction box 192. When the bypass diode D1 is disposed in the junction box 192, the first jumper 132 and the second jumper 134 are electrically connected through the bypass diode D1.

[0052] The junction box 192 can be disposed on the cell layer of the photovoltaic module 100, or on other layers of the photovoltaic module 100. In one embodiment, the photovoltaic module 100 also includes a backsheet 190, which is stacked with the cell layer, and the junction box 192 is disposed on the backsheet 190. Please refer to [link to relevant documentation]. Figure 9 The upper dashed frame represents the battery cell layer, and the lower dashed frame represents the backplate 190. The junction box 192 is disposed on the backplate 190 and is connected to the first jumper 132 and the second jumper 134 in the battery cell layer. A bypass diode D1 is disposed in the junction box 192 to complete the electrical connection between the first jumper 132 and the second jumper 134.

[0053] See Figure 9 In one embodiment, the end of the first jumper 132 near the junction box 192 is bent toward the plane of the back plate 190 to form a first lead-out end; the end of the second jumper 134 near the junction box 192 is bent toward the plane of the back plate 190 to form a second lead-out end; both the first lead-out end and the second lead-out end are connected to the bypass diode D1 inside the junction box 192.

[0054] The busbar, jumper 130, and lead wires are all conductive metal strips. The first lead wire is connected to the end of the first jumper 132 near the junction box 192, allowing current to be drawn out from the first jumper 132. The second lead wire is connected to the end of the second jumper 134 near the junction box 192, allowing current to be drawn out from the second jumper 134. Both the first and second lead wires are bent towards the plane closest to the backplate 190. Figure 9 As shown, the bending angles of the first lead and the second lead are both 90 degrees.

[0055] A bypass diode D1 is installed inside the junction box 192. The first lead and the second lead are connected to the two ends of the diode, respectively, and electrically connect the first jumper 132 and the second jumper 134. When the battery string 120 fails, the bypass diode D1 can allow the current to bypass the faulty battery string 120, thus protecting the circuit.

[0056] Furthermore, a fixing component can be provided at the bend position of the first lead-out end to fix the position of the first jumper 132 and the bend angle. Correspondingly, a fixing component can also be provided at the bend position of the second lead-out end to fix the position of the second jumper 134 and the bend angle. The fixing component can be overlapped at the bend position to form a triangular support with the bend position, or it can be laid at the bend position to fix the first jumper 132 and the second jumper 134 by its own bending strength or interlocking structure.

[0057] The first lead is located on the side of the first jumper 132 away from the first busbar 140, so that the position of the first lead can be adjusted along the extension direction of the first jumper 132 towards the back panel 190, so that the first lead can contact the junction box 192, thereby improving the contact stability between the first jumper 132 and the junction box 192.

[0058] Similarly, the second lead is positioned on the side of the second jumper 134 away from the second busbar 160, allowing the position of the second lead to be adjusted along the extension direction of the second jumper 134 towards the backplane 190, so that the second lead can contact the junction box 192. This improves the contact stability between the second jumper 134 and the junction box 192, thus enhancing the overall safety of the photovoltaic module 100.

[0059] In one embodiment, the photovoltaic module 100 further includes an encapsulating film layer and a cover plate. The cover plate is disposed on the side of the cell layer away from the backsheet 190. The encapsulating film layer fills the space between the cover plate and the cell layer, and also fills the space between the cell layer and the backsheet 190. See also Figure 9 The upper dashed frame represents the battery cell layer, the middle dashed frame represents the adhesive film layer, and the lower dashed frame represents the backplate 190. The junction box 192 is disposed on the backplate 190.

[0060] The cover plate is made of glass and is located on the side of the cell layer away from the backsheet 190, allowing light to pass through and enabling the cell layer to generate photovoltaic power. An adhesive film layer is filled between the cell layer and the cover plate, and also between the cell layer and the backsheet 190, which adhesively secures the cover plate and cell layer, as well as the cell layer and backsheet 190, facilitating the encapsulation of the photovoltaic module.

[0061] The material of the film is not limited and can be EVA (ethylene-vinyl acetate copolymer), POE (polyolefin elastomer), PVB (polyvinyl butyral), and various composite films. For example, EPE film is a composite film with a three-layer structure of "EVA-POE-EVA".

[0062] The material of the backsheet 190 is not limited; it can be various polymer materials. It can be a TPT backsheet with a PET (polyethylene terephthalate) base film in the middle and PVF (polyvinylidene fluoride) film coated on both sides. Alternatively, it can be a TPE backsheet with a PET base film in the middle and non-fluorinated materials such as PE (polyethylene) or EVA coated on both sides. It can also be a KPK / KPE backsheet with a PET base film in the middle and PVDF (polyvinylidene fluoride) or a blend of PVDF and other materials coated on both sides. The backsheet 190 can also use a transparent PET with a transparent fluorine film structure to achieve a transparent backsheet for bifacial power generation in photovoltaic modules.

[0063] In one embodiment, the photovoltaic module further includes an isolation strip disposed between the jumper 130 and the cell layer.

[0064] Jumper wire 130 is installed on the separator strip, which provides insulation between the jumper wire and the multi-cell solar cells. This reduces the width of the photovoltaic module, thereby reducing the amount of auxiliary materials such as the backsheet 190 and encapsulating film, and lowering material costs. Jumper wire 130 and the separator strip can be positioned using fixing tape or pre-welding. The edge of the separator strip should be at least 2mm away from the edge of the jumper wire 130 to prevent the jumper wire 130 from shifting and exposing itself during positioning, thus preventing direct contact with the solar cells.

[0065] The separator strip can be a single-layer insulating material or a multi-layer material. In one embodiment, the separator strip is a multi-layer structure, with an insulating material in the middle layer and materials with certain adhesive properties on the top and bottom layers. The separator strip is bonded to the jumper 130 and the multi-cell battery cells via the adhesive materials of the top and bottom layers. For example, this adhesive material can be a pressure-sensitive material or a heat-sensitive material. The thickness of the top and bottom layers is not less than 0.1 mm to ensure a certain level of adhesion. The overall thickness of the separator strip is between 0.32 and 0.5 mm to avoid crushing the multi-cell battery cells due to excessive thickness.

[0066] To better understand the above solution, a detailed explanation will be provided below with reference to a specific embodiment.

[0067] A photovoltaic system includes multiple photovoltaic modules connected in series. The connection configuration can be found in [reference needed]. Figure 2 , Figure 3 , Figure 6 as well as Figure 7 A photovoltaic module includes a cell layer, a backsheet, a cover plate, and an encapsulant layer. The cover plate, cell layer, and backsheet are stacked sequentially. An encapsulant layer is filled between the cell layer and the cover plate, and also between the cell layer and the backsheet, which can bond and fix the cover plate and cell layer, as well as the cell layer and backsheet.

[0068] The solar cell layer includes a first busbar, a second busbar, jumpers, and multiple cell strings. Each cell string consists of multiple six-cell solar cells connected in series, and the cell strings are connected in parallel via the first and second busbars. Bypass diodes are installed on the jumpers, and isolation strips are provided between the jumpers and other structures in the solar cell layer. The jumpers include a first jumper and a second jumper. The photovoltaic module also includes a junction box located on the backsheet, which houses the bypass diodes. The specific circuit structure is as follows... Figure 5 As shown, the pattern diagram is as follows: Figure 8 As shown above, this has already been recorded and will not be repeated here.

[0069] In this embodiment, the solar cell is cut into one-sixths, and a novel six-segment circuit for a photovoltaic module is designed. This reduces the series current in the photovoltaic module to one-sixth of the current of the entire cell, and the circuit loss of the solder wire portion is reduced to approximately one-thirty-sixth of that of the entire cell, one-ninth of that of a half-cell, and 4 / 9 of that of a four-segment module, effectively reducing electrical losses from the solder wire portion by 1-3W. Furthermore, the six-segment circuit does not contain jumpers during normal operation, meaning the jumpers are short-circuited, thus avoiding 2-3W of electrical losses from the jumpers during operation. Overall, this effectively reduces the circuit loss of the photovoltaic module by 12-18W while maintaining the same output current and voltage. In addition, compared to a four-segment circuit, this six-segment circuit saves one jumper and two diodes, significantly reducing the module cost.

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

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

Claims

1. A photovoltaic module, characterized in that, It includes a battery cell layer, the battery cell layer including a first busbar, a second busbar and a plurality of battery strings, the first busbar connecting to a first end of each battery string and the second busbar connecting to a second end of each battery string; The battery string includes multiple multi-segment battery cells connected in series, and each battery string is connected in parallel through the first busbar and the second busbar.

2. The photovoltaic module according to claim 1, characterized in that, The photovoltaic module includes a jumper wire, the first end of which is connected to the first busbar, the second end of which is connected to the second busbar, and the jumper wire is connected in series and parallel with each of the cells.

3. The photovoltaic module according to claim 2, characterized in that, The photovoltaic module also includes a bypass diode, which is disposed on the jumper.

4. The photovoltaic module according to claim 3, characterized in that, The photovoltaic module also includes a junction box, and the jumper includes a first jumper and a second jumper. The first jumper is connected to the second jumper through a bypass diode disposed in the junction box.

5. The photovoltaic module according to claim 4, characterized in that, The photovoltaic module also includes a backsheet, which is stacked with the cell layer, and the junction box is disposed on the backsheet.

6. The photovoltaic module according to claim 5, characterized in that, The end of the first jumper wire near the junction box is bent towards the plane near the back plate to form a first lead-out end; the end of the second jumper wire near the junction box is bent towards the plane near the back plate to form a second lead-out end; both the first lead-out end and the second lead-out end are connected to the bypass diode inside the junction box.

7. The photovoltaic module according to claim 5, characterized in that, The photovoltaic module further includes an encapsulant layer and a cover plate. The cover plate is disposed on the side of the cell layer away from the backsheet. The encapsulant layer fills the space between the cover plate and the cell layer, and also fills the space between the cell layer and the backsheet.

8. The photovoltaic module according to claim 2, characterized in that, The photovoltaic module also includes an isolation strip, which is disposed between the jumper and the cell layer.

9. The photovoltaic module according to any one of claims 1-8, characterized in that, The photovoltaic module further includes a first lead and a second lead. The first lead connects one end of the first busbar to an adjacent photovoltaic module, and the second lead connects to one end of the second busbar away from the first lead and is connected to the second busbar.

10. The photovoltaic module according to any one of claims 2-8, characterized in that, The photovoltaic module further includes a first lead and a second lead, wherein the first lead is connected to a first end of the jumper and the second lead is connected to a second end of the jumper.

11. The photovoltaic module according to any one of claims 1-8, characterized in that, The multi-segmented battery cell is a six-segmented battery cell.

12. A photovoltaic system, characterized in that, The photovoltaic system includes a plurality of photovoltaic modules as described in any one of claims 1-11, wherein the photovoltaic modules are connected in series.

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