Stacked gate battery and photovoltaic module
By designing the current collection layer to be wide at both ends and narrow in the middle, and using copper interconnect technology, the problem of conductive wire desoldering in stacked grid cells under high temperature and high humidity environments was solved, achieving excellent performance stability and durability of the battery.
Patent Information
- Application Number
- CN202520142960.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Currently, when stacked grid cells are used in high temperature and high humidity environments, the axial ends of the conductive wires are prone to detachment, resulting in poor performance stability and durability.
By designing the current collection layer with a structure that is wide at both ends and narrow in the middle, the welding area between the current collection layer and the conductive wire is increased, thermal stress is reduced, welding tensile strength is increased, and copper interconnect technology is used to replace silver to improve welding strength.
In high temperature and high humidity environments, it enhances the performance stability and durability of the battery, prevents the conductive wires from detaching, and improves the reliability of photovoltaic modules.
Smart Images
Figure CN223885576U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of solar cells, in particular to a kind of interdigitated back contact (IBC) cell and photovoltaic module. BACKGROUND
[0002] As one of the important schemes of solar cell cost reduction and efficiency improvement, the main technical scheme of interdigitated back contact (IBC) cell is to use new pattern design, adopt the same current collection layer as current transmission direction to cancel the main and auxiliary grid lines or fine grid lines in traditional cell structure, thereby greatly reducing the printing area of silver paste and reducing the aspect ratio of silver paste, to achieve the purpose of reducing silver consumption. Among them, the conductive wire for connecting and transmitting current is stacked on the current collection layer, forming an interdigitated back contact (IBC) structure of stacked current collection layer and conductive wire.
[0003] The current interdigitated back contact (IBC) cell mainly adopts the welding mode to stack the conductive wire on the current collection layer, however, when the solar cell is served in high temperature and high humidity environment, the axial both ends of the conductive wire are easy to be detached, which leads to poor performance stability and durability of the solar cell. CONTENT OF THE INVENTION
[0004] Therefore, it is necessary to provide an interdigitated back contact (IBC) cell and photovoltaic module to solve the problem that the axial both ends of the conductive wire are easy to be detached when the solar cell is served in high temperature and high humidity environment.
[0005] An interdigitated back contact (IBC) cell, comprising:
[0006] a cell substrate; and
[0007] a plurality of current collection layers arranged on the surface of the cell substrate, the plurality of current collection layers are arranged at intervals along the width direction of the cell substrate, and each current collection layer has a shape of wide at both ends and narrow in the middle along the length direction of the cell substrate.
[0008] In one embodiment, the current collection layer comprises a first collection main body part and two first enhancement parts; the first collection main body part extends along the length direction of the cell substrate, and the first enhancement part is arranged at the corresponding end of the first collection main body part in the length direction of the cell substrate.
[0009] In one embodiment, the size of the first enhancement part in the width direction of the cell substrate is greater than the size of the first collection main body part in the width direction of the cell substrate.
[0010] In one embodiment, the surface of the first collection main body part away from the cell substrate is flush with the surface of the first enhancement part away from the cell substrate.
[0011] In one of the embodiments, the tandem cell further comprises a plurality of conductive wires, each of the conductive wires being stacked on a side of the corresponding current collecting layer opposite to the cell substrate; and a portion of the conductive wire is connected to the corresponding first reinforcing part after being flattened.
[0012] In one of the embodiments, the current collecting layer comprises a second collecting body part and at least three second reinforcing parts; the second collecting body part extends along the length direction of the cell substrate; all the second reinforcing parts are arranged at intervals from one end to the other end of the second collecting body part in the length direction of the cell substrate, and the surface area of the second reinforcing part opposite to the cell substrate gradually decreases from the end part to the middle part of the second collecting body part in the length direction of the cell substrate.
[0013] In one of the embodiments, the size of the second reinforcing part in the width direction of the cell substrate and the size of the second reinforcing part in the length direction of the cell substrate gradually decrease from the end part to the middle part of the second collecting body part in the length direction of the cell substrate.
[0014] In one of the embodiments, the surface of the second collecting body part opposite to the cell substrate is flush with the surface of the second reinforcing part opposite to the cell substrate.
[0015] In one of the embodiments, the current collecting layer comprises a metal seed layer, a copper plating layer and a soldering layer stacked in sequence, and the cell substrate is arranged on a side of the metal seed layer opposite to the copper plating layer.
[0016] In one of the embodiments, a plurality of the current collecting layers are arranged on the back of the cell substrate, and comprise a plurality of positive current collecting layers and a plurality of negative current collecting layers; the positive current collecting layers and the negative current collecting layers are arranged alternately along the width direction of the cell substrate.
[0017] A photovoltaic module, comprising a plurality of the tandem cells according to any one of the above embodiments, and the plurality of the tandem cells are connected in at least one of series and parallel.
[0018] The tandem cell and the photovoltaic module described above, by arranging the current collecting layer into a structure of wide at both ends and narrow in the middle, the area of the end part of the current collecting layer in the length direction of the cell substrate is larger than the area of the middle part, i.e. the area of the end part of the current collecting layer is increased, which can increase the soldering area between the two ends of the current collecting layer and the conductive wire, reduce the thermal stress between the two ends of the current collecting layer and the conductive wire, increase the soldering tension between the two ends of the current collecting layer and the conductive wire, and further prevent the two ends of the conductive wire from being unsoldered, so that the solar cell can have excellent performance stability and durability even when serving in a high temperature and high humidity environment. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 Simulation result of thermal stress after welding between current collecting layer of traditional stacked gate battery and conductive wire.
[0020] Figure 2 Structure schematic diagram of stacked gate battery provided by an embodiment of the present application from the back when not stacked with conductive wire.
[0021] Figure 3 Figure 2 Sectional view of stacked gate battery provided by the present application at A-A.
[0022] Figure 4 Figure 2 Schematic diagram of stacked gate battery provided by the present application at B when stacked with conductive wire.
[0023] Figure 5 Structure schematic diagram of stacked gate battery provided by another embodiment of the present application from the back when not stacked with conductive wire.
[0024] Figure 6 Figure 5 Partial schematic diagram of stacked gate battery provided by the present application when stacked with conductive wire.
[0025] In the drawings, the following signs are explained as follows:
[0026] 10, stacked gate battery; 100, battery base; 200, current collecting layer; 200a, metal seed layer; M, first metal seed layer; N, second metal seed layer; 200b, copper plating layer 200b; 200c, welding layer; 210, first collecting main part; 220, first reinforcing part; 210', second collecting main part; 220', second reinforcing part; 300, conductive wire; 310, end part of conductive wire; 320, middle part of conductive wire. DETAILED DESCRIPTION
[0027] In order to make the above objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0028] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.
[0029] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0031] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0032] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are used for explanation only and are not intended to be limiting.
[0033] The main technical solution of the stacked grid cell as one of the important schemes for reducing the cost and increasing the efficiency of solar photovoltaic cells is to use a new pattern design, adopt a current collection layer with the same current transmission direction to eliminate the main and auxiliary grid lines or fine grid lines in the traditional cell structure, thereby greatly reducing the printing area of silver paste and at the same time reducing the aspect ratio of silver paste to achieve the purpose of reducing the silver consumption.
[0034] The current collection layer and the conductive wire are welded together in the welding process. In the welding process, thermal stress is generated between the current collection layer and the conductive wire. Among them, Figure 1 The simulation result of the thermal stress between the current collection layer and the conductive wire after welding is shown, and it can be seen from Figure 1 The distribution law of the thermal stress along the current collection layer is low in the middle and high at the two ends of the axis, that is, the thermal stress is high after the current collection layer and the conductive wire are welded at the two ends of the axis, so when the solar cell is served in a high temperature and high humidity environment, the two ends of the conductive wire are prone to be detached, which leads to poor performance stability and durability of the solar cell.
[0035] In view of this, the current collection layer of the stacked grid cell is improved in the present application, and the welding area between the current collection layer and the conductive wire at the two ends of the axis is increased to reduce the thermal stress between the current collection layer and the conductive wire at the two ends of the axis, thereby preventing the two ends of the conductive wire from being detached, so that the solar cell can have excellent performance stability and durability even when it is served in a high temperature and high humidity environment.
[0036] As Figures 2-3 An embodiment of the present application provides a stacked grid cell 10, which is the smallest unit of a photovoltaic module, and its main function is to convert solar energy into electrical energy, which can be a TOPCon (Tunnel Oxide Passivated Contact) cell, an HJT (Heterojunction with Intrinsic Thin-film) cell or a BC (Back Contact) cell.
[0037] As shown in Figure 3 The interdigitated battery 10 includes a battery substrate 100, a plurality of current collecting layers 200, and a plurality of conductive wires 300. The surface of the battery substrate 100 has two electrode regions, namely a positive electrode region and a negative electrode region. The positive electrode region and the electrode region can be arranged on the front surface and the back surface of the battery substrate 100, respectively, or both on the back surface of the battery substrate 100.
[0038] The plurality of current collecting layers 200 are arranged on the surface of the battery substrate 100 and spaced apart along the width direction of the battery substrate 100. The current collecting layers 200 are arranged on the electrode regions of the battery substrate 100 and are used to collect current. The current collecting layers 200 can be divided into positive current collecting layers and negative current collecting layers. The positive current collecting layers are arranged on the positive electrode region of the battery substrate 100, and the negative current collecting layers are arranged on the negative electrode region of the battery substrate 100. It should be noted that the "width direction" in the entire text is based on the direction of the "X" axis in Figure 2 Figure 3 and Figure 5 , and the "length direction" is based on the direction of the "Y" axis in Figure 2 Figure 3 and Figure 5 .
[0039] In an embodiment, the plurality of current collecting layers 200 are arranged on the back surface of the battery substrate 100 and include a plurality of positive current collecting layers and a plurality of negative current collecting layers. The positive current collecting layers and the negative current collecting layers are alternately arranged along the width direction of the battery substrate 100. In this way, the interconnection of all the batteries on the photovoltaic module is performed on the back surface, and the front surface of the battery is completely free of any obstruction, thereby improving the conversion efficiency of the front surface of the battery.
[0040] The number of positive current collecting layers and negative current collecting layers and the distance between adjacent positive current collecting layers 200 and negative current collecting layers 200 are not specifically limited and can be set according to the size of the battery. For example, the total number of positive current collecting layers and negative current collecting layers on the interdigitated battery 10 is 118-144, and the distance between adjacent positive current collecting layers and negative current collecting layers is 1.5-2 mm.
[0041] The conductive wires 300 are arranged on the side of the corresponding current collecting layers 200 opposite to the battery substrate 100 by welding, for leading out the collected current and realizing the series / parallel connection of the batteries. The cross-sectional structure of the conductive wires 300 is not specifically limited and can be flat rectangular, triangular, circular, semicircular, trapezoidal, etc. The number of the conductive wires 300 is the same as that of the current collecting layers 200.
[0042] For example, as shown in Figure 2 As shown, each current collection layer 200 is wider at both ends and narrower in the middle along the length of the cell substrate 100. This design ensures that the end area of the current collection layer 200 along the length of the cell substrate 100 is larger than the middle area, thus indirectly increasing the end area of the current collection layer 200. This increases the welding area between the ends of the current collection layer 200 and the conductive wire 300, reduces the thermal stress between the ends of the current collection layer 200 and the conductive wire 300, and increases the welding pull force between the ends of the current collection layer 200 and the conductive wire 300. This prevents the ends of the conductive wire 300 from detaching, enabling the solar cell to maintain excellent performance stability and durability even when operating in high temperature and high humidity environments.
[0043] like Figure 2 As shown, in some embodiments of this application, the current collection layer 200 may include a first collection main body 210 and two first reinforcing parts 220 disposed on the first collection main body 210. The first collection main body 210 extends along the length direction of the battery substrate 100, and the first reinforcing parts 220 are disposed at corresponding ends of the first collection main body 210 in the length direction of the battery substrate 100. The dimension W1 of the first reinforcing part 220 in the width direction of the battery substrate 100 is greater than the dimension W2 of the first collection main body 210 in the width direction of the battery substrate 100. Designing the current collection layer 200 as a dumbbell shape not only increases the welding area between the end of the current collection layer 200 and the conductive wire 300, but also simplifies the structure of the current collection layer 200, facilitating battery production and processing.
[0044] To further increase the welding area between the first reinforcing portion 220 and the conductive wire 300, in one embodiment, a portion of the conductive wire 300 is flattened and connected to the corresponding first reinforcing portion 220. For example... Figure 3 As shown, the conductive wire 300 includes two ends 310 along the length direction of the battery substrate 100 and a middle portion 320 disposed between the two ends 310. Flattening the two ends 310 of the conductive wire 300 can increase the size of the ends 310 of the conductive wire 300 in the length and width directions of the battery substrate 100, thereby increasing the welding area between the first reinforcing portion 220 and the conductive wire 300, thereby increasing the welding tensile force between the end of the current collecting layer 200 and the conductive wire 300.
[0045] The cross-sectional structure of the conductive wire 300 can be set to a triangular, circular, semi-circular, trapezoidal, or other shapes, without specific limitations. For example, such as... Figure 3As shown, the cross-sectional structure of the conductive wire 300 is set to be a triangle with a length of 0.2 mm and a height of 0.2 mm. After being flattened, the end portion 310 of the conductive wire 300 connected to the first reinforcing portion 220 can have a size of 0.3 mm to 0.4 mm in the length direction of the battery substrate 100 and a size of 0.6 mm to 0.8 mm in the width direction of the battery substrate 100.
[0046] To avoid short circuit of the two adjacent current collecting layers 200 due to contact, the size of the first reinforcing portion 220 is limited based on the size W2 of the first collecting body portion 210 in the width direction of the current collecting layer 200 and the distance between the two adjacent first collecting body portions 210. Specifically, the size W2 of the first collecting body portion 210 in the width direction of the current collecting layer 200 is usually set to be 0.03 mm to 0.04 mm, the distance between the two adjacent first collecting body portions 210 is usually set to be 1.5 mm to 2 mm, the size W1 of the first reinforcing portion 220 in the width direction of the battery substrate 100 is 0.3 mm to 0.5 mm (for example, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc.), and the size in the length direction of the battery substrate 100 is 0.8 mm to 1.0 mm (for example, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, 1.0 mm, etc.).
[0047] In an embodiment, the surface of the first collecting body portion 210 facing away from the battery substrate 100 is flush with the surface of the first reinforcing portion 220 facing away from the battery substrate 100. In this way, there is no height difference between the first collecting body portion 210 and the first reinforcing portion 220, and the thermal stress concentration phenomenon at the junction between the first collecting body portion 210 and the first reinforcing portion 220 after welding of the conductive wire 300 can be avoided. It should be noted that the "height direction" in the entire text is based on the direction of the "Z axis" in the drawings. Figure 3
[0048] In an embodiment, as shown in Figure 4 the first collecting body portion 210 and the first reinforcing portion 220 each include a metal seed layer 200a, a copper plating layer 200b, and a welding layer 200c arranged in sequence, and the battery substrate 100 is arranged on the side of the metal seed layer 200a facing away from the copper plating layer 200b. The copper interconnection technology is used to replace silver in the traditional current collecting layer with copper, which can reduce the use of silver and reduce the cost of the battery. Of course, in some other embodiments, only the first collecting body portion 210 or the first reinforcing portion 220 is arranged in the above structure.
[0049] The metal seed layer 200a is arranged to facilitate the attachment of the copper plating layer 200b to the polysilicon layer of the battery substrate 100, so as to avoid the copper plating layer 200b from falling off. Optionally, as shown inFigure 4 As shown, the metal seed layer 200a includes a first metal seed layer M and a second metal seed layer N with different materials. The first metal seed layer M is disposed on the surface of the battery substrate 100, and the second metal seed layer N is disposed between the first metal seed layer M and the copper plating layer 200b. The first metal seed layer M can be made of a base metal material, such as Al, which can form effective contact with the polycrystalline silicon layer of the battery substrate 100 after high-temperature treatment; while the second metal seed layer N can be made of a base metal material with low resistance, such as Cu. The first metal seed layer M and the second metal seed layer N are formed by PVD (Physical Vapor Deposition), which creates van der Waals forces between the first and second seed layers. Then, an etching process is used to obtain a metallized pattern structure. The copper plating layer 200b can be deposited on the second metal seed layer N using an electroplating process. Since the copper plating layer 200b and the second seed layer are made of the same metal material, a metallic bond is formed between them.
[0050] The welding layer 200c can be welded to the conductive wire 300. The welding layer 200c can be made of a metal material with a low melting point, such as tin, which can be welded at a high temperature of 200℃~300℃, which is beneficial for the welding of the conductive wire 300.
[0051] like Figure 5 and Figure 6 As shown, in another embodiment of this application, the current collection layer 200 includes a second collection main body 210' and at least three second reinforcement parts 220'. The second collection main body 210' extends along the width direction of the battery substrate 100. All the second reinforcement parts 220' are spaced apart from one end of the second collection main body 210' to the other end in the length direction of the battery substrate 100. The surface area of the second reinforcement parts 220' facing away from the battery substrate 100 decreases sequentially from the end to the middle of the second collection main body 210' in the width direction of the battery substrate 100. The current collecting layer 200 of this structure is similar to a centipede. The second reinforcing part 220' extends from one end of the second collecting main body 210' to the other end along the length direction of the battery substrate 100. This increases the welding area between the current collecting layer 200 and the conductive wire 300, and improves the welding tensile strength between the current collecting layer 200 and the conductive wire 300. In addition, the surface area of the second reinforcing part 220' decreases from the end to the middle 330 of the second collecting main body 210' in the width direction of the battery substrate 100. This makes the area of the second reinforcing part 220' the largest at the end of the second collecting main body 210', which increases the welding area between the end of the current collecting layer 200 and the conductive wire 300 and reduces the thermal stress between the end of the current collecting layer 200 and the conductive wire 300.
[0052] The structure of the second collecting main body part 210' and the second reinforcing part 220' can be the same as that of a conventional current collecting layer (for example, provided as Ag grid lines) or the same as the structure of the first collecting main body part 210 or the first reinforcing part 220 described above, that is, the silver in the conventional current collecting layer 200 is replaced with copper by using copper interconnection technology.
[0053] For the current collecting layer 200 with the structure, the conductive wire 300 matched therewith can be provided as a flat conductive wire with a size of 0.2 mm in the width direction of the battery substrate 100, as shown in FIG. 6, or a triangular conductive wire with a length of 0.2 mm and a height of 0.2 mm, without specific limitation. Figure 6
[0054] Optionally, as shown in FIG. 7, the size L1 of the second reinforcing part 220' in the length direction of the battery substrate 100 and the size W3 of the second reinforcing part 220' in the width direction of the battery substrate 100 gradually decrease from the end to the middle 330 of the second collecting main body part 210' in the width direction of the battery substrate 100. In this way, the size L1 of the second reinforcing part 220' at both ends of the second collecting main body part 210' in the length direction of the battery substrate 100 and the size W3 of the second reinforcing part 220' in the width direction of the battery substrate 100 are the largest, and the welding area of the current collecting layer 200 at both ends and the conductive wire 300 can be further increased. Figure 6 The size of the second reinforcing part 220' can be set according to the size of the second collecting main body part 210', without specific limitation. For example, the size of the second collecting main body part 210' in the width direction of the battery substrate 100 is 0.03 mm to 0.04 mm, the distance between adjacent two second collecting main body parts 210' is 1.5 mm to 2 mm, the size W3 of the second reinforcing part 220' in the width direction of the battery substrate 100 at both ends of the second collecting main body part 210' is 0.4 mm, and the size W3 of the second reinforcing part 220' in the length direction of the battery substrate 100 at the middle 330 of the second collecting main body part 210' is 0.06 mm.
[0055] The number of the second reinforcing parts 220' can be set according to the size of the battery substrate 100, without specific limitation. For example, as shown in FIG. 8, 11 second reinforcing parts 220' are provided on each second collecting main body part 210'.
[0056] Figure 5 In an embodiment, as shown in FIG. 9, the second reinforcing part 220' is provided on the second collecting main body part 210' in the form of a grid.
[0057] In an embodiment, as shown in FIG. 10, the second reinforcing part 220' is provided on the second collecting main body part 210' in the form of a grid. Figure 6 As shown, the surface of the second collecting main body part 210' facing away from the battery base 100 is flush with the surface of the second reinforcing part 220' facing away from the battery base 100. In this way, no height difference is formed between the second collecting main body part 210' and the second reinforcing part 220', so that the junction between the second collecting main body part 210' and the second reinforcing part 220' can avoid thermal stress concentration after being welded with the conductive wire 300.
[0058] In another aspect, an embodiment of the present application provides a photovoltaic module, which comprises a plurality of the interdigitated cells 10 according to any one of the above embodiments, and the plurality of the interdigitated cells 10 are connected in at least one of series and parallel.
[0059] In another aspect, an embodiment of the present application provides a photovoltaic module, which comprises a plurality of the interdigitated cells 10 according to any one of the above embodiments, and the plurality of the interdigitated cells 10 are connected in at least one of series and parallel.
[0060] In another aspect, an embodiment of the present application provides a photovoltaic module, which comprises a plurality of the interdigitated cells 10 according to any one of the above embodiments, and the plurality of the interdigitated cells 10 are connected in at least one of series and parallel.
[0061] In another aspect, an embodiment of the present application provides a photovoltaic module, which comprises a plurality of the interdigitated cells 10 according to any one of the above embodiments, and the plurality of the interdigitated cells 10 are connected in at least one of series and parallel.
[0062] Optionally, the front panel and the back panel are glass.
[0063] Optionally, the first adhesive layer and the second adhesive layer are made of EVA (Ethylene Vinyl Acetate Copolymer) or POE (Polyolefin Elastomer).
[0064] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the application embraces all such possible combinations.
[0065] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A stacked gate cell, characterized by, The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module.
2. The stacked gate cell of claim 1, wherein, The application relates to a photovoltaic module. The application relates to a photovoltaic module.
3. The stacked gate cell of claim 2, wherein, The application relates to a photovoltaic module.
4. The stacked gate cell of claim 2, wherein, The application relates to a photovoltaic module.
5. The stacked grid cell of claim 1, wherein, The application relates to a photovoltaic module. The application relates to a photovoltaic module.
6. The stacked gate cell of claim 5, wherein, The application relates to a photovoltaic module.
7. The stacked gate cell of claim 5, wherein, The application relates to a photovoltaic module.
8. The tandem cell according to any one of claims 1 to 7, characterized in that The application relates to a photovoltaic module.
9. The tandem cell according to any one of claims 1 to 7, characterized in that The application relates to a photovoltaic module.
10. A photovoltaic module, characterized by, The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic module. The application relates to a photovoltaic