Solar cell sheet and solar cell module

Abstract

The utility model relates to a solar cell piece and a solar cell module, the solar cell piece is provided with two opposite first side edges and two opposite second side edges, the distance between the two second side edges is 180-184mm, the distance between the two first side edges is 208-212mm, and the distance between the two first side edges is 208-212mm. The front face and the back face of the solar cell are provided with first grid line areas and second grid line areas or only the back face of the solar cell is provided with the first grid line areas and the second grid line areas, the first grid line areas and the second grid line areas are provided with grid lines respectively, and the first grid line areas and the second grid line areas are arranged at intervals in the first direction. A non-grid line area which extends along a second direction and is not provided with grid lines is arranged between the first grid line area and the second grid line area, the first direction is parallel to the first side edge, the second direction is parallel to the second side edge, and the solar cell piece can improve the module power of a solar cell module.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of solar energy, in particular, to a solar cell and a solar cell module. BACKGROUND

[0002] In the related art, the size of a solar cell module packaging flow line is generally 2500x1400mm. The packaging module using the currently applied solar cell cannot fully utilize the size of the module. For example, a module with a large size of 2465x1134mm is packaged by 78 solar cells with a size of 182x182mm, a module with a large size of 2384x1303mm is packaged by 210 solar cells with a size of 210x210mm, and in order to reduce manufacturing costs and improve overall power, the industry has developed a solar cell with a size of 182x210mm. The module packaged by this solar cell has a size of 2382x1134mm, and the number of solar cells in the module is 66. However, there is still space available for the production line equipment, and increasing the number of solar cells to improve the power of the module will result in a module size that exceeds the limit of the existing equipment. SUMMARY

[0003] The purpose of the present disclosure is to provide a solar cell and a solar cell module to improve the module power of the solar cell module.

[0004] According to one aspect of the present disclosure, a solar cell is provided, the solar cell having two opposite first sides and two opposite second sides, the distance between the two second sides being 180mm-184mm, the distance between the two first sides being 208mm-212mm, the front surface and the back surface of the solar cell both having a first grid line area and a second grid line area or only the back surface having the first grid line area and the second grid line area, the first grid line area and the second grid line area each having grid lines, the first grid line area and the second grid line area being arranged at intervals in a first direction, the first grid line area and the second grid line area having a non-grid line area extending in a second direction and not having grid lines therebetween, the first direction being parallel to the first side, and the second direction being parallel to the second side.

[0005] In some embodiments, the distance between the two second sides is 181mm-183mm, and the distance between the two first sides is 209mm-211mm.

[0006] In some embodiments, the distance between the two second sides is 181.5mm-182.5mm, and the distance between the two first sides is 209.5mm-210.5mm.

[0007] In some embodiments, the front side and the back side of the solar cell piece are both provided with a first grid line area and a second grid line area, and the first grid line area and the second grid line area both contain a finger electrode extending along the second direction.

[0008] In some embodiments, the first grid line area and the second grid line area further contain a busbar electrode extending along the first direction, and the busbar electrode is connected with the finger electrode.

[0009] In some embodiments, only the back side of the solar cell piece is provided with a first grid line area and a second grid line area, and the first grid line area and the second grid line area both contain a positive finger electrode and a negative finger electrode, and the positive finger electrode and the negative finger electrode extend along the second direction and are alternately arranged along the first direction.

[0010] In some embodiments, only the back side of the solar cell piece is provided with a first grid line area and a second grid line area, and the first grid line area and the second grid line area both contain a positive busbar electrode, a negative busbar electrode, a positive finger electrode and a negative finger electrode, and the positive busbar electrode and the negative busbar electrode extend along the first direction and are alternately arranged along the second direction, and the positive finger electrode and the negative finger electrode extend along the second direction and are alternately arranged along the first direction, and the negative finger electrode is connected with the negative busbar electrode and is separated from the adjacent positive busbar electrode, and the positive finger electrode is connected with the positive busbar electrode and is separated from the adjacent negative busbar electrode.

[0011] In some embodiments, the first grid line area and the second grid line area are symmetrical about the non-grid line area.

[0012] According to a second aspect of the present disclosure, a solar cell piece is provided, the length of the solar cell piece is 208mm-212mm, and the width of the solar cell piece is 180mm-184mm, and the solar cell piece has a dicing area for dicing, and the dicing area extends along a direction parallel to the long side of the solar cell piece.

[0013] According to a third aspect of the present disclosure, a solar cell module is provided, which comprises the solar cell piece as described above, and the solar cell module comprises 26 rows x 6 columns of cell dicing pieces, and the cell dicing pieces are cut by the solar cell piece along the non-grid line area, and the long side of the cell dicing piece extends along the row direction of the solar cell module, and the short side of the cell dicing piece extends along the column direction of the solar cell module.

[0014] According to a fourth aspect of the present disclosure, a solar cell module is provided, the length of the solar cell module is 2410mm-2470mm, and the width of the solar cell module is 1298mm-1308mm.

[0015] In some embodiments, the solar cell module comprises cell fragments arranged in an array in the form of 6 columns x 26 rows, the length of the cell fragments is 208-212 mm, the width is 90-92 mm, the long side of the cell fragments extends along the row direction of the array, and the short side of the cell fragments extends along the column direction of the array.

[0016] In some embodiments, the length of the solar cell module is 2460-2470 mm, the width is 1301-1305 mm, and there is a fragment gap between the cell fragments of each solar cell string.

[0017] In some embodiments, the length of the solar cell module is 2445-2455 mm, the width is 1301-1305 mm, and there is a fragment gap between the cell fragments of each solar cell string.

[0018] In some embodiments, the length of the solar cell module is 2420-2430 mm, the width is 1301-1305 mm, and there is no fragment gap between the cell fragments in the solar cell string.

[0019] In some embodiments, the length of the solar cell module is 2395-2405 mm, the width is 1301-1305 mm, and the edge portions of adjacent cell fragments in the solar cell string overlap.

[0020] Through the above technical solution, the solar cell piece adopts a 210 mm x 182 mm level solar cell piece, 78 such solar cell pieces can be equally divided into two cell fragments along the non-grid line area, and the cell fragments are arranged in an array in the form of 26 rows x 6 columns, a solar cell module with a length of not more than 2500 mm and a width of not more than 1400 mm can be prepared, thereby increasing the total area of the effective power generation body of the solar cell module and improving the power of the solar cell module.

[0021] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0023] Figure 1 is a structural schematic diagram of a solar cell piece provided according to an embodiment of the present disclosure;

[0024] Figure 2 is a solar cell piece provided according to a second embodiment of the present disclosure, wherein the solar cell piece only comprises a finger electrode;

[0025] Figure 3 The solar cell provided according to the third embodiment of the present disclosure is shown to have a first grid line region and a second grid line region only on the back side;

[0026] Figure 4 This is a schematic diagram of the structure of a solar cell module provided according to an embodiment of the present disclosure.

[0027] Explanation of reference numerals in the attached figures

[0028] 1-Solar cell, 11-First grid area, 12-Second grid area, 13-Non-grid area, 14-Finger electrode, 141-Positive finger electrode, 142-Negative finger electrode, 15-Bucket electrode, 151-Positive busbar electrode, 152-Negative busbar electrode, 16-First side, 17-Second side, 18-Battery segment, 2-Solar cell module, L1-First direction, L2-Second direction. Detailed Implementation

[0029] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0030] In this disclosure, unless otherwise stated, the use of terms such as "first" and "second" is intended to distinguish different components and does not imply sequentiality or importance. "First direction" and "second direction" are respectively attached... Figure 1 The directions "L1" and "L2" are used. Furthermore, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same elements. It should be understood by those skilled in the art that the above definitions are for explanation and illustration only and should not be construed as limiting the present disclosure.

[0031] Figures 1 to 3 This is a schematic diagram of a solar cell according to some exemplary embodiments of the present disclosure.

[0032] According to a specific embodiment of this disclosure, refer to Figures 1 to 4As shown, a solar cell 1 is provided. The solar cell 1 has two opposing first sides 16 and two opposing second sides 17. The distance between the two second sides 17 is 180mm-184mm, and the distance between the two first sides 16 is 208mm-212mm. The solar cell 1 has a first grid line region 11 and a second grid line region 12 on both the front and back sides, or only on the back side. The first grid line region 11 and the second grid line region 12 each have grid lines. The first grid line region 11 and the second grid line region 12 are arranged at intervals in a first direction L1. There is a non-grid line region 13 extending along a second direction L2 between the first grid line region 11 and the second grid line region 12 and without grid lines. The first direction L1 is parallel to the first side 16, and the second direction L2 is parallel to the second side 17.

[0033] The solar cell 1 of the exemplary embodiment of this disclosure has a size on the order of 210 × 182 mm. The size "order" described in this disclosure is not limited to the described point values. For example, the 210 × 182 mm order of the solar cell 1 here does not strictly limit the length and width of the solar cell 1 to point values ​​of 210 mm and 182 mm, but allows for variation around this reference.

[0034] By employing the above technical solution, and using 210mm×182mm-sized solar cell sheets 1 to arrange a solar cell module, 78 such solar cell sheets 1 can be divided into two battery segments 18 along the non-grid area. The battery segments 18 can be arranged in an array in a 26-row × 6-column manner, thereby producing a solar cell module 2 with a length not exceeding 2500mm and a width not exceeding 1400mm. This increases the total area of ​​the effective power generation body of the solar cell module 2 and improves the power of the solar cell module 2.

[0035] In other words, the solar cell 1 is divided into two equal battery segments 18 along the non-grid area 13, and then multiple battery segments 18 are electrically connected and encapsulated into a solar cell module using an encapsulant. In the exemplary embodiment of this disclosure, the solar cell 1 is rectangular, and the non-grid area 13 is substantially parallel to the long side of the rectangular solar cell 1. Therefore, the length of the battery segment 18 is approximately 210 mm, and the width is approximately 91 mm. Thus, the battery segments 18 can be arranged in a 26-row × 6-column array, allowing the fabrication of solar cell modules with a length not exceeding 2500 mm and a width not exceeding 1400 mm. Compared to existing designs, the total area of ​​the effective power generation body of the solar cell module 2, i.e., the solar cell 1, is increased, which is beneficial for improving the power of the solar cell module 2. For a solar cell 1 of the 182 mm × 210 mm level, the solar cell module 2 obtained by the segmentation method of the exemplary embodiment of this disclosure can maximize the power of the solar cell module 2 without exceeding the size limit of the production line (2500 × 1400 mm).

[0036] Furthermore, the distance between the two second sides 17 can be 181mm-183mm, and the distance between the two first sides 16 can be 209mm-211mm. For example, the distance between the two second sides 17 can be 181mm, 181.1mm, 181.2mm, 181.3mm, 181.4mm, 181.5mm, 181.6mm, 181.7mm, 181.8mm, 181.9mm, 182mm, 182.1mm, 182.2mm, 182.3mm, 182.4mm, 182.5mm, 182.6mm, 182.7mm, 182.8mm, 182.9mm, or 183mm, and the distance between the two first sides 16 can be 181mm, 181.1mm, 181.2mm, 181.3mm, 181.4mm, 181.5mm, 181.6mm, 181.7mm, 181.8mm, 182.9mm, or 183mm. The distance between the sides 16 can be 209mm, 209.1mm, 209.2mm, 209.3mm, 209.4mm, 209.5mm, 209.6mm, 209.7mm, 209.8mm, 209.9mm, 210mm, 210.1mm, 210.2mm, 210.3mm, 210.4mm, 210.5mm, 210.6mm, 210.7mm, 210.8mm, 210.9mm, or 211mm, and this disclosure does not impose any specific limitations on it.

[0037] Furthermore, the distance between the two second sides 17 can be 181.5-182.5 mm, and the distance between the two first sides 16 can be 209.5 mm-210.5 mm. For example, the distance between the two second sides 17 can be 181.5 mm, 181.6 mm, 181.7 mm, 181.8 mm, 181.9 mm, 182 mm, 182.1 mm, 182.2 mm, 182.3 mm, 182.4 mm, or 182.5 mm, and the distance between the two first sides 16 can be 209.5 mm, 209.6 mm, 209.7 mm, 209.8 mm, 209.9 mm, 210 mm, 210.1 mm, 210.2 mm, 210.3 mm, 210.4 mm, or 210.5 mm. This disclosure does not impose specific limitations on these distances.

[0038] Furthermore, the distance between the two second sides 17 is 181.8-182.2 mm, and the distance between the two first sides 16 is 209.8-210.2 mm. For example, the length of the first side 16 can be 181.8 mm, 181.9 mm, 182 mm, 182.1 mm, or 182.2 mm, and the length of the second side 17 can be 209.8 mm, 209.9 mm, 210 mm, 210.1 mm, or 210.2 mm. This disclosure does not impose specific limitations on these dimensions.

[0039] Furthermore, the distance between the two second sides 17 is 181.9-182.1 mm, and the distance between the two first sides 16 is 209.9 mm-210.1 mm. For example, the length of the first side 16 can be 181.9 mm, 182 mm, or 182.1 mm, and the length of the second side 17 can be 209.9 mm, 210 mm, or 210.1 mm. This disclosure does not impose specific limitations on these aspects.

[0040] According to the embodiments provided in this disclosure, refer to Figure 1 and Figure 2 As shown, the solar cell 1 has a first grid line region 11 and a second grid line region 12 on both its front and back sides. Both the first grid line region 11 and the second grid line region 12 include finger electrodes 14 extending along a second direction L2. The finger electrodes 14 can collect photogenerated carriers from the solar cell 1. The first grid line region 11 and the second grid line region 12 are provided on both the front and back sides of the solar cell 1. The grid lines of the first grid line region 11 and the second grid line region 12 on the front side can be positive electrodes, and the grid lines of the first grid line region 11 and the second grid line region 12 on the back side can be negative electrodes. Alternatively, the grid lines of the first grid line region 11 and the second grid line region 12 on the front side can be negative electrodes, and the grid lines of the first grid line region 11 and the second grid line region 12 on the back side can be positive electrodes.

[0041] According to the embodiments provided in this disclosure, refer to Figure 1 As shown, the first grid region 11 and the second grid region 12 also include a bus electrode 15 extending along the first direction L1, which is connected to the finger electrode 14. The bus electrode 15 is used to collect the current gathered by the finger electrode 14, and the current can be conducted to the external circuit of the solar cell module 2 via the solder strip connected to the bus electrode 15. The bus electrode 15 extends along the first direction L1, and the direction of the solar cell string formed by dividing the solar cell 1 into cell segments 18 along the non-grid region 13 is along the first direction L1. The first side 16 of the cell segment 18 is along the direction of the solar cell string, and the second side 17 of the cell segment 18 is along a direction perpendicular to the solar cell string. Thus, six rows of solar cell strings can construct a solar cell module 2 with a width of approximately 1300 mm.

[0042] Figure 2 A surface of a solar cell 1 according to an exemplary embodiment of the present disclosure is illustrated. Compared to Figure 1 The example shown, Figure 2 The example shown omits bus electrode 15. One advantage of omitting bus electrode 15 is that it saves electrode material and reduces manufacturing costs, as the electrode material contains the precious metal silver.

[0043] Figure 3 The back side of a solar cell according to an exemplary embodiment of the present disclosure is illustrated.

[0044] The solar cell 1 has a first grid line region 11 and a second grid line region 12 only on the back side. Both the first grid line region 11 and the second grid line region 12 include a positive finger electrode 141 and a negative finger electrode 142. The positive finger electrode 141 and the negative finger electrode 142 extend in the second direction and are alternately arranged in the first direction to eliminate the shading of the front electrode on the light, thereby increasing the light receiving area of ​​the solar cell 1 and improving the photoelectric conversion efficiency.

[0045] According to the embodiments provided in this disclosure, refer to Figure 3 As shown, the solar cell 1 can be a back-contact cell, that is, only the back side has a first grid line region 11 and a second grid line region 12. Each grid line region includes a positive bus electrode 151, a negative bus electrode 152, a positive finger electrode 141 and a negative finger electrode 142. The positive bus electrode 151 and the negative bus electrode 152 extend along a first direction L1 and are alternately arranged in a second direction L2. The negative finger electrode 142 is connected to the negative bus electrode 152 and separated from the adjacent positive bus electrode 151. The positive finger electrode 141 is connected to the positive bus electrode 151 and separated from the adjacent negative bus electrode 152.

[0046] In other examples, the solar cell 1 can be a back-contact cell without the bus electrode 15, for example, without... Figure 3 The positive bus electrode 151 and the negative bus electrode 152 are in the middle.

[0047] According to the embodiments provided in this disclosure, refer to Figures 1 to 3 As shown, the non-grid region 13 is located at the midpoint of the first side 16 of the solar cell 1. Therefore, the first grid region 11 and the second grid region 12 are symmetrical about the non-grid region 13. By cutting the solar cell 1 along the non-grid region 13, the solar cell 1 can be divided into two equal-sized cell segments 18.

[0048] According to one aspect of this disclosure, a solar cell 1 is provided, the solar cell 1 having a length of 208-212 mm and a width of 180-184 mm. The solar cell 1 has a slicing region for slicing, the slicing region extending along a direction parallel to the long side of the solar cell 1. Since the extending direction of the slicing region is consistent with the extending direction of the long side of the solar cell 1, a solar cell module 2 with a width of approximately 1300 mm can be constructed using the cell slices 18. Furthermore, in the length direction of the solar cell module 2, as many cell slices 18 as possible can be arranged without exceeding the length of the production line, thereby increasing the area of ​​the power-generating region of the solar cell module 2 and improving its power output without modifying the existing production line dimensions.

[0049] Further, the length of solar cell 1 can be 209mm-211mm, and the width can be 181mm-183mm. Further, the length of solar cell 1 can be 209.5mm-210.5mm, and the width can be 181.5mm-182.5mm. Further, the length of solar cell 1 can be 209.7mm-210.3mm, and the width can be 181.7mm-182.3mm. Further, the length of solar cell 1 can be 209.8mm-210.2mm, and the width can be 181.8mm-182.2mm. Further, the length of solar cell 1 can be 209.9mm-210.1mm, and the width can be 209.9mm-210.1mm.

[0050] The solar cell 1 can be divided into two equal-sized segments 18 along one segmentation area. Alternatively, there can be two or more segmentation areas along which the solar cell 1 can be cut into multiple battery strips. These battery strips can be used to fabricate a stacked solar cell module 2. The edges of the battery strips in the stacked solar cell module 2 are overlapped.

[0051] According to one aspect of this disclosure, a solar cell module 2 is provided, which is encapsulated by dividing a 210×182mm-sized solar cell 1 into two equal parts to form 18 cell segments 1. It should be noted that the 210×182mm-sized solar cell 1 here does not strictly limit the length and width of the solar cell 1 to 210mm and 182mm, but can fluctuate around this reference.

[0052] For example, the solar cell module 2 includes cell segments 18 arranged in an array of 26 rows × 6 columns. Cell segments 18 are divided into two equal parts by the solar cell 1 along the non-grid area 13. The long side of the cell segment 18 extends along the row direction of the array, and the short side of the cell segment 18 extends along the column direction of the array.

[0053] The solar cell module 2 disclosed herein uses 210mm × 182mm-sized solar cells. The solar cell 1 can be transversely cut into two 210mm × 91mm-sized cell segments 18 along a direction parallel to the long side of the solar cell 1. When manufacturing the solar cell module 2, the long side of the 210mm segment is used as the row direction of the cell array.

[0054] According to one aspect of this disclosure, a solar cell module 2 is provided, having a length of 2410mm-2470mm and a width of 1298mm-1308mm. Given a solar cell 1 of approximately 210mm × 182mm, the solar cell module 2 of this embodiment can increase the area of ​​the power-generating region, thereby increasing the power output of the solar cell module 2.

[0055] According to the embodiments provided in this disclosure, refer to Figure 4 As shown, the solar cell module 2 includes battery cells 18 arranged in a 26-row × 6-column array. The length of each battery cell 18 is 208mm-212mm, and the width is 90mm-92mm. The long side of each battery cell 18 extends along the row direction of the array, meaning it is parallel to the short side of the solar cell module 2. The short side of each battery cell 18 also extends along the column direction of the array, meaning it is parallel to the long side of the solar cell module 2. For a given 210mm × 182mm solar cell 1, when the long side of the battery cells 18, obtained by cutting along a direction parallel to the long side of the solar cell 1, extends along the row direction of the battery array, meaning it is parallel to the short side of the solar cell module 2, a solar cell module 2 with a size of 2465mm × 1303mm can be constructed. This increases the power of the solar cell module 2, and this size does not exceed the space limitations of existing mainstream production lines, eliminating the need for production line modifications or expansions. The aforementioned solar cell 1 is suitable for encapsulating the solar cell module 2 of this embodiment.

[0056] Each solar cell string has cell gaps 18 between its cells, and solar cell strings have string gaps between adjacent solar cell strings. 26 rows × 6 columns of cell cells 18 can be packaged into a solar cell module 2 of approximately 2465 × 1303 mm. Appropriate tolerances are allowed in the length and width of the solar cell module 2. In an exemplary embodiment of this disclosure, the length of the solar cell module 2 can be 2460 mm-2470 mm, and the width can be 1298 mm-1308 mm. Further, the length of the solar cell module 2 can be 2460 mm-2470 mm, and the width can be 1301 mm-1305 mm. Further still, the length of the solar cell module 2 can be 2463 mm-2467 mm, and the width can be 1301 mm-1305 mm.

[0057] Considering packaging dimensions, in order to load the solar cell module 2 vertically into the container, the length of the solar cell module 2 can be shortened by reducing the gap between the cells. For example, the length of the solar cell module 2 can be configured to be 2445mm-2455mm, and the width to be 1301mm-1305mm. Further, the length of the solar cell module 2 can be 2448mm-2452mm, and the width can be 1301mm-1305mm; this disclosure does not impose specific limitations on these dimensions.

[0058] In exemplary embodiments of this disclosure, it is permissible to have no gaps between the cell segments 18 of a solar cell string to construct a high-power-density solar cell module 2. For example, the length of the solar cell module 2 can be 2420mm-2430mm, and the width can be 1301mm-1305mm. It is also permissible to have negative gaps between the cells in the solar cell string, meaning that adjacent cell segments 18 in the solar cell string overlap. For example, the length of the solar cell module 2 can be 2410mm-2415mm, and the width can be 1301mm-1305mm.

[0059] In an exemplary embodiment of this disclosure, without exceeding the size limitations of the production line, a solar cell module 2 obtained by arranging the battery segments 18 obtained by cutting 210mm×182mm-level solar cells 1 along the long side in a 26-row×6-column manner can accommodate more solar cells 1. The total area of ​​the power-generating body is larger than that of existing large-format modules packaged with 182mm×182mm-level, 210mm×210mm-level, and 210mm×182mm-level solar cells 1, thereby increasing the power of the solar cell module 2.

[0060] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0062] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A solar cell, characterized in that, The solar cell has two opposing first sides and two opposing second sides. The distance between the two second sides is 180mm-184mm, and the distance between the two first sides is 208mm-212mm. The front and back sides of the solar cell have, or only the back side has, a first grid line area and a second grid line area. The first grid line area and the second grid line area each have grid lines. The first grid line area and the second grid line area are spaced apart in a first direction. There is a non-grid line area extending along a second direction between the first grid line area and the second grid line area without grid lines. The first direction is parallel to the first side, and the second direction is parallel to the second side.

2. The solar cell according to claim 1, characterized in that, The distance between the two second sides is 181mm-183mm, and the distance between the two first sides is 209mm-211mm.

3. The solar cell according to claim 2, characterized in that, The distance between the two second sides is 181.5mm-182.5mm, and the distance between the two first sides is 209.5mm-210.5mm.

4. The solar cell according to claim 1, characterized in that, The solar cell has a first grid line region and a second grid line region on both its front and back sides, and both the first grid line region and the second grid line region include finger electrodes extending along the second direction.

5. The solar cell according to claim 4, characterized in that, The first gate line region and the second gate line region further include a bus electrode extending along the first direction, the bus electrode being connected to the finger electrode.

6. The solar cell according to claim 1, characterized in that, The solar cell has only the first grid line region and the second grid line region on its back side. Both the first grid line region and the second grid line region include positive finger electrodes and negative finger electrodes. The positive finger electrodes and negative finger electrodes extend in the second direction and are alternately arranged in the first direction.

7. The solar cell according to claim 1, characterized in that, The solar cell has only the first grid line region and the second grid line region on its back side. Both the first grid line region and the second grid line region include a positive bus electrode, a negative bus electrode, a positive finger electrode, and a negative finger electrode. The positive bus electrode and the negative bus electrode extend along the first direction and are alternately arranged in the second direction. The positive finger electrode and the negative finger electrode extend along the second direction and are alternately arranged in the first direction. The negative finger electrode is connected to the negative bus electrode and separated from the adjacent positive bus electrode. The positive finger electrode is connected to the positive bus electrode and separated from the adjacent negative bus electrode.

8. The solar cell according to claim 1, characterized in that, The first gate line region and the second gate line region are symmetrical about the non-gate line region.

9. A solar cell, characterized in that, The solar cell has a length of 208mm-212mm and a width of 180mm-184mm. The solar cell has a segmentation area for segmentation, which extends along a direction parallel to the long side of the solar cell.

10. A solar cell module, characterized in that, The battery cells are arranged in an array of 26 rows × 6 columns. Each battery cell is formed by dividing the solar cell of any one of claims 1-9 into two equal parts along the non-grid area. The long side of each battery cell extends along the row direction of the array, and the short side of each battery cell extends along the column direction of the array.

11. A solar cell module, characterized in that, The solar cell module has a length of 2410mm-2470mm and a width of 1298mm-1308mm.

12. The solar cell module according to claim 11, characterized in that, The solar cell module includes battery cells arranged in an array of 26 rows × 6 columns. The length of each battery cell is 208mm-212mm and the width is 90mm-92mm. The long side of each battery cell extends along the row direction of the array, and the short side of each battery cell extends along the column direction of the array.

13. The solar cell module according to claim 12, characterized in that, The solar cell module has a length of 2460mm-2470mm and a width of 1301-1305mm, with gaps between the cell segments of each solar cell string.

14. The solar cell module according to any one of claims 11-13, characterized in that, The solar cell module has a length of 2463-2467mm and a width of 1301-1305mm.

15. The solar cell module according to claim 12, characterized in that, The solar cell module has a length of 2445mm-2455mm and a width of 1301mm-1305mm, with gaps between the cell segments of each solar cell string.

16. The solar cell module according to claim 12, characterized in that, The solar cell module has a length of 2420mm-2430mm and a width of 1301mm-1305mm.

17. The solar cell module according to claim 12, characterized in that, The solar cell module has a length of 2410mm-2415mm and a width of 1301mm-1305mm, with the cell segments in the solar cell string overlapping each other.

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