Solar cell and solar cell module

Abstract

The utility model discloses a solar cell and a solar cell assembly, and relates to the technical field of solar cells, in order to solve the problem that the card point prints are scattered on the surface of the cell to be coated in the prior art, and it can be known that the card point has a poor supporting and limiting effect on the cell to be coated, which affects the coating quality of the cell to be coated. In the solar cell, along the first direction, the solar cell has two opposite first sides; along the second direction, the solar cell has two opposite second sides; the first direction is perpendicular to the second direction; the solar cell has a corner point, and the corner point is the point where the extension line of the first side and the extension line of the second side intersect. The surface of the solar cell has at least two card point prints, and at least two card point prints are respectively located on the adjacent first side and the second side. The ratio of the spacing between the card point print and the corner point closest to the card point print to the length of the side where the card point print is located is greater than or equal to 15% and less than or equal to 35%.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cells, in particular to a solar cell sheet and a solar cell assembly. Background Art

[0002] In the prior art, it is usually necessary to coat the surface of the cell to be coated by using a tube-type plasma enhanced chemical vapor deposition (PECVD). At this time, the cell to be coated needs to be placed in a graphite boat, and then the graphite boat carrying the cell to be coated is placed in the coating equipment for processing.

[0003] The existing graphite boat uses clamping points to fix the battery sheets. The graphite boat includes a plurality of graphite boat leaves arranged side by side, and all the clamping points are fixed on the graphite boat leaves.

[0004] In the prior art, the card points are printed on the surface of the battery cell to be coated and are scattered. It can be seen that the card points have a poor supporting and limiting effect on the battery cell to be coated, which affects the coating quality of the battery cell to be coated. Utility Model Content

[0005] The utility model aims to provide a solar cell and a solar cell assembly, which are used to improve the supporting and limiting effect of the card points on the solar cell to be coated, so as to ensure the coating quality of the solar cell to be coated.

[0006] In order to achieve the above-mentioned purpose, in the first aspect, the utility model provides a solar cell. Along a first direction, the solar cell has two opposite first sides. Along a second direction, the solar cell has two opposite second sides, and the first direction is perpendicular to the second direction. The solar cell has a corner point, which is a point where the first side and the second side intersect, or a point where the extension line of the first side and the extension line of the second side intersect. The surface of the solar cell has at least two card point marks, and at least two card point marks are respectively located on the adjacent first side and the second side. The ratio of the spacing between the card point mark and the corner point closest to the card point mark to the length of the side where the card point mark is located is greater than or equal to 15% and less than or equal to 35%.

[0007] Compared with the distribution of the card point prints in the prior art, the card point prints in the utility model are more evenly distributed. Therefore, compared with the distribution of the card points in the prior art, the card point distribution in the utility model is more evenly distributed. Based on this, compared with the prior art, the supporting and limiting effect of the card points on the solar cell to be coated is improved, thereby ensuring the coating quality of the solar cell to be coated. Furthermore, the card point prints are close to the corner points and away from the center of the solar cell. At this time, the influence of the card point prints on the surface aesthetics of the solar cell can be reduced to ensure the aesthetics of the solar cell.

[0008] In one implementation, the length of the first side is greater than that of the second side; the surface of the solar cell has three card point marks; wherein two card point marks are respectively located on the two first sides, and the remaining card point mark is located on any second side.

[0009] In the case of adopting the above technical solution, two card points are respectively located on the two first sides, compared with two card points are respectively located on the two second sides, which can improve the support and limiting effect of the card points on the solar cell to be coated. Furthermore, since any second side must be located between the two first sides, when the remaining card point is located on any second side, the use of three card points can further improve the support and limiting effect of the card points on the solar cell to be coated, so as to further ensure the coating quality of the solar cell to be coated. It can be understood that the card points on the graphite boat blades and the card point prints on the solar cell are in a corresponding relationship with each other, the above three card points respectively abut the three sides of the solar cell, and the three card points are all located near the corners of the solar cell, the force points of the solar cell can form a better triangular arrangement, and have a better support and limiting effect on the solar cell to be coated.

[0010] In one implementation, the first side has a first perpendicular midline, and the spacing between the card point mark on the first first side and the first perpendicular midline is equal to the spacing between the card point mark on the second first side and the first perpendicular midline. Along the second direction, the card point marks on the first first side and the second first side are respectively located on both sides of the first perpendicular midline.

[0011] When the above technical solution is adopted, the card points located on the two first sides are evenly stressed, and the supporting and limiting effect of the card points on the solar cell to be coated can be improved to further ensure the coating quality of the solar cell to be coated. It can be understood that the card points on the graphite boat blades and the card point prints on the solar cell are in a corresponding relationship. Along the second direction, the card point prints located on the first first side and the second first side are respectively located on both sides of the first perpendicular midline. At this time, the two card points on the two first sides respectively abut the two first sides of the solar cell, and the two abutting positions are staggered in the second direction, which has a better supporting and limiting effect on the solar cell to be coated.

[0012] In one implementation, the distance between the card point mark on the first side and the center point of the solar cell is greater than or equal to 100 mm and less than or equal to 110 mm. The distance between the card point mark on the second side and the center point of the solar cell is greater than or equal to 102 mm and less than or equal to 111 mm.

[0013] When the above technical solution is adopted, the supporting and limiting effect of the card points on the solar cell to be coated and the influence of the card point printing on the surface aesthetics of the solar cell can be taken into account at the same time, so that the coating quality of the solar cell to be coated and the aesthetics of the solar cell can meet the requirements at the same time.

[0014] In one implementation, the distances between all the card point marks and the corner points closest to the card point marks are equal.

[0015] In one implementation, when the solar cell sheet is a whole solar cell sheet, the distance between the card point mark and the corner point closest to the card point mark is greater than or equal to 35 mm and less than or equal to 55 mm.

[0016] When the above technical solution is adopted, since the distance between the card point print and the corner point closest to the card point print is greater than or equal to 35mm, it can be ensured that the card point's support and limiting effect on the entire solar cell to be coated meets the requirements, so as to ensure the coating quality of the entire solar cell to be coated. Furthermore, since the distance between the card point print and the corner point closest to the card point print is less than or equal to 55mm, the effect of the card point print on the surface aesthetics of the entire solar cell can be reduced, so as to ensure the aesthetics of the entire solar cell.

[0017] In one implementation, when the solar cell is a sliced ​​solar cell, the distance between the card point mark and the corner point closest to the card point mark is greater than or equal to 15 mm and less than or equal to 25 mm.

[0018] When the above technical solution is adopted, since the distance between the card point print and the corner point closest to the card point print is greater than or equal to 15mm, it can be ensured that the card point's support and limiting effect on the to-be-coated sliced ​​solar cell sheet meets the requirements, thereby ensuring the coating quality of the to-be-coated sliced ​​solar cell sheet. Furthermore, since the distance between the card point print and the corner point closest to the card point print is less than or equal to 25mm, the effect of the card point print on the surface aesthetics of the sliced ​​solar cell sheet can be reduced, thereby ensuring the aesthetics of the sliced ​​solar cell sheet.

[0019] In one implementation, the length of the first side is greater than or equal to 192.0 mm and less than or equal to 210 mm. The length of the second side is greater than or equal to 182.0 mm and less than or equal to 182.2 mm.

[0020] When the above technical solution is adopted, the length of the first side and the length of the second side can be selected according to actual conditions to obtain solar cells of different specifications. In this case, the solar cells can be adapted to different application scenarios to expand the scope of application of the solar cells.

[0021] In one implementation, the solar cell has a light-receiving surface and a backlight surface opposite to each other; the card point printing is located on the light-receiving surface.

[0022] In a second aspect, the utility model further provides a solar cell assembly, comprising the solar cell sheet described in the above technical solution.

[0023] Compared with the prior art, the beneficial effects of the solar cell sheet provided by the utility model are the same as the beneficial effects of the solar cell assembly described in the above technical solution, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the first distribution of the card point prints on the first solar cell in the embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the second distribution of the card point printing on the first solar cell in the embodiment of the utility model;

[0027] Figure 3 Schematic diagram of the distribution of the card point prints on the second solar cell in the embodiment of the utility model.

[0028] Reference numerals:

[0029] 1-first side, 10-side, 2-second side, 20-bottom, 3-corner point, 30-first corner point, 31-second corner point, 32-fourth corner point, 33-fifth corner point, 4-card point print. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In order to solve the above technical problems, see Figures 1 to 3 In a first aspect, an embodiment of the utility model provides a solar cell. Along a first direction A, the solar cell has two opposite first sides 1. Along a second direction B, the solar cell has two opposite second sides 2, and the first direction A is perpendicular to the second direction B. The solar cell has a corner point, and the corner point 3 is the point where the first side 1 and the second side 2 intersect, or the corner point 3 is the point where the extension line of the first side 1 and the extension line of the second side 2 intersect.

[0036] The shape of the solar cell can be made according to actual needs. For example, the top view of the solar cell can be a square, a rectangle or a polygon with four chamfered corners (see Figure 3 ) etc. Further, see Figure 1 and Figure 2 , when the top view of the solar cell is a square or rectangle, the corner points can be the vertices of the square or rectangle. Figure 3 When the top view of the solar cell is a polygon with four chamfers, the corner point may be the vertex of the triangle where the chamfer is located (ie, the point where the extension line of the first side 1 intersects the extension line of the second side 2).

[0037] Furthermore, the length of the first side is equal to the length of the second side, or the length of the first side is smaller than the length of the second side, or the length of the first side is larger than the length of the second side.

[0038] As a possible implementation, see Figures 1 to 3 , the length L1 of the first side 1 is greater than or equal to 192.0 mm and less than or equal to 210 mm. For example, the length L1 of the first side 1 can be 192.0 mm, 192.4 mm, 192.5 mm, 192.6 mm, 192.7 mm, 192.8 mm, 200.0 mm or 210 mm, etc. The length L2 of the second side 2 is greater than or equal to 182.0 mm and less than or equal to 182.2 mm. For example, the length L2 of the second side 2 can be 182.0 mm, 182.1 mm or 182.2 mm, etc.

[0039] When the above technical solution is adopted, the length of the first side and the length of the second side can be selected according to actual conditions to obtain solar cells of different specifications. In this case, the solar cells can be adapted to different application scenarios to expand the scope of application of the solar cells.

[0040] See also Figures 1 to 3 The surface of the solar cell has at least two card point marks 4, and the at least two card point marks 4 are respectively located at the adjacent first side 1 and the second side 2. The ratio of the spacing between the card point mark 4 and the corner point 3 closest to the card point mark 4 to the length of the side where the card point mark 4 is located is greater than or equal to 15% and less than or equal to 35%. For example, the ratio can be 15%, 17%, 20%, 23%, 25%, 30% or 35%, etc.

[0041] Compared with the distribution of the card point prints in the prior art, the card point prints in the embodiment of the utility model are more evenly distributed. Therefore, compared with the distribution of the card points in the prior art, the card point distribution in the embodiment of the utility model is more evenly distributed. Based on this, compared with the prior art, the supporting and limiting effect of the card points on the solar cell to be coated is improved, thereby ensuring the coating quality of the solar cell to be coated. Furthermore, the above-mentioned card point prints are close to the corner points and far away from the center of the solar cell. At this time, the influence of the card point prints on the surface aesthetics of the solar cell can be reduced to ensure the aesthetics of the solar cell.

[0042] As a possible implementation, the surface of the solar cell has three card point marks. The three card point marks are respectively located on a first side and two second sides. Or, see Figure 1 , the three card points 4 are respectively located on a second side 2 and two first sides 1. At this time, the supporting and limiting effect of the card points on the solar cell to be coated can be further improved to further ensure the coating quality of the solar cell to be coated. It can be understood that the card points on the graphite boat blades and the card point prints on the solar cell are in a corresponding relationship with each other. The above three card points respectively abut the three sides of the solar cell, and the three card points are all located near the corners of the solar cell. The force points of the solar cell can form a better triangular arrangement, which has a better supporting and limiting effect on the solar cell to be coated.

[0043] As a possible implementation, see Figure 1 The length L1 of the first side 1 is greater than the length L2 of the second side 2, and the surface of the solar cell has three card point marks 4. Two card point marks 4 are respectively located on the two first sides 1, and the remaining card point mark 4 is located on any second side 2.

[0044] In the case of adopting the above technical solution, two card points 4 are respectively located on the two first sides 1, which can improve the support and limit effect of the card points on the solar cell to be coated compared to two card points 4 are respectively located on the two second sides 2. Furthermore, since any second side 2 must be located between the two first sides 1, when the remaining card point 4 is located on any second side 2, the use of three card points can further improve the support and limit effect of the card points on the solar cell to be coated, so as to further ensure the coating quality of the solar cell to be coated.

[0045] In an alternative approach, see Figure 1 , the first side 1 has a first perpendicular midline, and the spacing between the check mark 4 on the first first side 1 and the first perpendicular midline is equal to the spacing between the check mark 4 on the second first side 1 and the first perpendicular midline. Along the second direction, the check marks on the first first side and the second first side are respectively located on both sides of the first perpendicular midline. The direction of the first perpendicular midline is parallel to the first direction.

[0046] When the above technical solution is adopted, the card points located on the two first sides are evenly stressed, and the supporting and limiting effect of the card points on the solar cell to be coated can be improved to further ensure the coating quality of the solar cell to be coated. Combined with the previous description, it can be known that the card points on the graphite boat blades and the card point prints on the solar cell are in a corresponding relationship. Along the second direction, the card point prints located on the first first side and the second first side are respectively located on both sides of the first perpendicular midline. At this time, the two card points on the two first sides respectively abut the two first sides of the solar cell, and the two abutting positions are staggered in the second direction, which has a better supporting and limiting effect on the solar cell to be coated.

[0047] In an alternative approach, see Figure 1 , the distance L3 between the card point mark 4 on the first side 1 and the center point O of the solar cell is greater than or equal to 100 mm and less than or equal to 110 mm. For example, the distance L3 can be 100 mm, 101 mm, 102 mm, 103 mm, 104 mm, 105 mm, 106 mm, 107 mm, 108 mm, 109 mm or 110 mm. Preferably, the distance L3 between the card point mark 4 on the first side 1 and the center point of the solar cell is 104 mm.

[0048] See also Figure 1 , the distance L4 between the card point mark 4 on the second side 2 and the center point O of the solar cell is greater than or equal to 102 mm and less than or equal to 111 mm. For example, the distance L4 can be 102 mm, 103 mm, 104 mm, 105 mm, 106 mm, 107 mm, 108 mm, 109 mm, 110 mm or 111 mm. Preferably, the distance L4 between the card point mark 4 on the second side 2 and the center point of the solar cell is 106 mm.

[0049] When the above technical solution is adopted, the supporting and limiting effect of the card points on the solar cell to be coated and the influence of the card point printing on the surface aesthetics of the solar cell can be taken into account at the same time, so that the coating quality of the solar cell to be coated and the aesthetics of the solar cell can meet the requirements at the same time.

[0050] In an optional manner, the distance between the card point mark on the first side and the center point of the solar cell can be equal to or unequal to the distance between the card point mark on the second side and the center point of the solar cell, and the position of the card point is set according to actual needs.

[0051] As a possible implementation manner, the distances between all the checkpoint marks 4 and the corner points 3 closest to the checkpoint marks 4 are equal.

[0052] The solar cell may be a whole solar cell or a half solar cell. The following describes the two cases as examples. It should be understood that the following description is only for understanding and is not intended to be a specific limitation.

[0053] As a possible implementation, when the solar cell is a whole solar cell, the spacing between the card point mark and the corner point closest to the card point mark is greater than or equal to 35 mm and less than or equal to 55 mm. For example, the spacing may be 35 mm, 37 mm, 39 mm, 40 mm, 43 mm, 44 mm, 45 mm, 48 mm, 50 mm or 55 mm.

[0054] When the above technical solution is adopted, since the distance between the card point print and the corner point closest to the card point print is greater than or equal to 35mm, it can be ensured that the card point's support and limiting effect on the entire solar cell to be coated meets the requirements, so as to ensure the coating quality of the entire solar cell to be coated. Furthermore, since the distance between the card point print and the corner point closest to the card point print is less than or equal to 55mm, the effect of the card point print on the surface aesthetics of the entire solar cell can be reduced, so as to ensure the aesthetics of the entire solar cell.

[0055] As a possible implementation, when the solar cell is a split solar cell, the spacing between the card point mark and the corner point closest to the card point mark is greater than or equal to 15mm and less than or equal to 25mm. For example, the spacing can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm or 25mm. For example, Figure 1 For the entire solar cell, Figure 1 The dotted line in the figure represents a dividing line W, which is used to divide a whole solar cell into two divided solar cells.

[0056] When the above technical solution is adopted, since the distance between the card point print and the corner point closest to the card point print is greater than or equal to 15mm, it can be ensured that the card point's support and limiting effect on the to-be-coated sliced ​​solar cell sheet meets the requirements, thereby ensuring the coating quality of the to-be-coated sliced ​​solar cell sheet. Furthermore, since the distance between the card point print and the corner point closest to the card point print is less than or equal to 25mm, the effect of the card point print on the surface aesthetics of the sliced ​​solar cell sheet can be reduced, thereby ensuring the aesthetics of the sliced ​​solar cell sheet.

[0057] As a possible implementation, the solar cell has a light-receiving surface and a backlight surface opposite to each other, and the card point printing is located on the light-receiving surface. It should be understood that the light-receiving surface is the front side, and the backlight surface is the back side.

[0058] Exemplarily, the card point print may be a card point print located on a passivation anti-reflection film on the light-receiving surface. Specifically, the card point print may be a card point print located on a silicon nitride film layer on the light-receiving surface.

[0059] The following describes the distribution of the entire solar cell and the card point marks on the surface of the entire solar cell in two possible situations. It should be noted that the following description is only for understanding and is not intended to be a specific limitation.

[0060] Example 1: See Figure 1 , the length L1 of the first side 1 of the whole solar cell is 192.0 mm, and the length L2 of the second side 2 is 182.0 mm. The spacing (referred to as the first spacing L5 for the convenience of description) between the card point mark 4 on the first first side 1 and the corner point closest to the card point mark 4 (referred to as the first corner point 30 for the convenience of description) is 44 mm, the spacing (referred to as the second spacing L6 for the convenience of description) between the card point mark 4 on the second first side 1 and the corner point closest to the card point mark 4 (referred to as the second corner point 31 for the convenience of description) is 44 mm, and the spacing (referred to as the third spacing L7 for the convenience of description) between the card point mark 4 on the second side 2 and the corner point closest to the card point mark 4 (referred to as the third corner point for the convenience of description) is 44 mm. Among them, the second corner point 31 and the third corner point are the same point, and the first corner point 30 and the second corner point 31 are located on the same diagonal line of the whole solar cell.

[0061] Example 2: See Figure 2 In the actual coating process, if the second side 2 faces the bottom of the graphite boat, there must be a clamping point fixed on the second side 2 (referred to as the bottom side 20 for the convenience of description) close to the bottom of the graphite boat. Combined with the above description, the surface of the solar cell has at least two clamping point marks 4, and at least two clamping point marks 4 are respectively located on the adjacent first side 1 and second side 2. Therefore, there must be a clamping point on any first side 1 (referred to as the side side 10 for the convenience of description) adjacent to the second side 2 with a clamping point.

[0062] See also Figure 2 , the length L1 of the first side 1 of the whole solar cell is 192.0 mm, and the length L2 of the second side 2 is 182.0 mm. The spacing (for the convenience of description, referred to as the fourth spacing L8) between the card point mark 4 on the side 10 and the corner point closest to the card point mark 4 (for the convenience of description, referred to as the fourth corner point 32) is 44 mm, and the spacing (for the convenience of description, referred to as the fifth spacing L9) between the card point mark 4 on the bottom edge 20 and the corner point closest to the card point mark 4 (for the convenience of description, referred to as the fifth corner point 33) is 44 mm, and the fourth corner point 32 and the fifth corner point 33 are located on the same diagonal line of the whole solar cell.

[0063] In a second aspect, an embodiment of the utility model further provides a solar cell assembly, comprising the solar cell sheet described in the above technical solution.

[0064] The beneficial effects of the solar cell sheet provided by the embodiment of the utility model are the same as the beneficial effects of the solar cell assembly described in the above technical solution, and will not be described in detail here.

[0065] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0066] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A solar cell, characterized in that: Along a first direction, the solar cell has two opposite first sides; along a second direction, the solar cell has two opposite second sides; the first direction is perpendicular to the second direction; The solar cell has a corner point, and the corner point is a point where the first side and the second side intersect, or the corner point is a point where an extension line of the first side and an extension line of the second side intersect; The surface of the solar cell sheet has at least two card point marks, and the at least two card point marks are respectively located on the adjacent first side and the second side; The ratio of the distance between the card point mark and the corner point closest to the card point mark to the length of the side where the card point mark is located is greater than or equal to 15% and less than or equal to 35%.

2. The solar cell according to claim 1, characterized in that: The length of the first side is greater than the length of the second side; the surface of the solar cell has three card point marks; Among them, two of the checkpoint marks are located on two of the first sides respectively, and the remaining one of the checkpoint marks is located on any of the second sides.

3. The solar cell according to claim 2, characterized in that: The first side has a first perpendicular bisector, and the spacing between the card point mark on the first side and the first perpendicular bisector is equal to the spacing between the card point mark on the second side and the first perpendicular bisector; along the second direction, the card point marks on the first side and the second side are respectively located on both sides of the first perpendicular bisector.

4. The solar cell according to claim 2, characterized in that: The distance between the card point mark on the first side and the center point of the solar cell is greater than or equal to 100 mm and less than or equal to 110 mm; The distance between the card point mark located on the second side and the center point of the solar cell is greater than or equal to 102 mm and less than or equal to 111 mm.

5. The solar cell according to claim 1, characterized in that: The distances between all the card point marks and the corner points closest to the card point marks are equal.

6. The solar cell according to claim 1, characterized in that: When the solar cell sheet is a whole solar cell sheet, the distance between the card point mark and the corner point closest to the card point mark is greater than or equal to 35 mm and less than or equal to 55 mm.

7. The solar cell according to claim 1, characterized in that: When the solar cell sheet is a sliced ​​solar cell sheet, the distance between the card point mark and the corner point closest to the card point mark is greater than or equal to 15 mm and less than or equal to 25 mm.

8. The solar cell according to any one of claims 1 to 7, characterized in that: The length of the first side is greater than or equal to 192.0 mm and less than or equal to 210 mm; The length of the second side is greater than or equal to 182.0 mm and less than or equal to 182.2 mm.

9. The solar cell according to any one of claims 1 to 7, characterized in that: The solar cell sheet has a light-receiving surface and a backlight surface opposite to each other; the card point print is located on the light-receiving surface.

10. A solar cell module, characterized in that: The invention comprises a solar cell according to any one of claims 1 to 9.

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