CN221201185U - Grid line electrode for photovoltaic cell, photovoltaic cell and photovoltaic module - Google Patents
Grid line electrode for photovoltaic cell, photovoltaic cell and photovoltaic module Download PDFInfo
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- CN221201185U CN221201185U CN202322279111.8U CN202322279111U CN221201185U CN 221201185 U CN221201185 U CN 221201185U CN 202322279111 U CN202322279111 U CN 202322279111U CN 221201185 U CN221201185 U CN 221201185U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 19
- 239000010703 silicon Substances 0.000 claims abstract description 19
- 239000004065 semiconductor Substances 0.000 claims description 9
- 239000002313 adhesive film Substances 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 27
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 silver-aluminum Chemical compound 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of photovoltaic cells, and discloses a grid line electrode for a photovoltaic cell, the photovoltaic cell and a photovoltaic module. The grid line electrode comprises a main grid line, a first thin grid line and a second thin grid line; the first thin grid line and the second thin grid line are adjacent and transversely arranged; the main grid lines are arranged in a longitudinal section manner; the first thin grid line is connected with and extends to the left side and the right side of the adjacent main grid line segment, so that the first thin grid line comprises a first connecting part and a first extending part; the second thin grid line is connected with and extends to the left side and the right side of the adjacent other main grid line segment, so that the second thin grid line comprises a second connecting part and a second extending part; the sectioning position of the main grid line is positioned between the first connecting part and the second connecting part; the distance between the first extending part and the second extending part is smaller than the distance between the first connecting part and the second connecting part, so that the distance between the first connecting part and the second connecting part is widened. The grid line electrode can increase the contact area of the first and second thin grid lines and the silicon wafer, reduce the shading area, improve the battery efficiency, increase the welding window and reduce the cost.
Description
Technical Field
The utility model relates to the technical field of photovoltaic cells, in particular to a grid line electrode for a photovoltaic cell, the photovoltaic cell and a photovoltaic module.
Background
Solar energy is used as a stable and efficient green energy source, and is one of important directions for solving the current energy source problem. Among them, the cell efficiency of TOPCON cells is rapidly improved, and thus, the TOPCON cells have become one of the mainstream photovoltaic cells in the market at present. Typically, the surface of the cell of the photovoltaic cell is printed with a plurality of thin grid lines for collecting the current of the cell, and the surface of the cell is also printed with a main grid line for collecting the current of each thin grid line. In practice, the main grid lines and the fine grid lines on the surface of the battery piece are mainly formed by printing silver paste or silver-aluminum paste, and particularly, the main grid lines need to consume a large amount of silver paste or silver-aluminum paste; however, silver is expensive, which tends to increase the raw material cost and the manufacturing cost of the battery sheet. Therefore, to further achieve the effect of reducing the cost of the photovoltaic cell (such as a TOPCON cell), the structural design of the main grid line and the thin grid line of the photovoltaic cell is also one of the important means.
In the prior art, referring to fig. 1, a main grid line structure of a photovoltaic cell mostly adopts a fishbone structure (the main grid line structure comprises a main grid line 1 longitudinally arranged and a plurality of main grid lines 1 transversely arranged and connected with the longitudinal main grid line 1), and the middle parts of the thin grid lines 2 are disconnected (or hollowed) to be lapped with the left side and the right side of the main grid line 1 transversely arranged.
However, there are a number of drawbacks to the existing gate line electrodes:
(1) In the existing grid line electrode, the middle part of the thin grid line 2 is hollowed, so that the contact area between the thin grid line 2 and the surface of a silicon wafer is smaller, the contact resistance is larger, and the improvement of the battery efficiency is not facilitated.
(2) In addition, the prior grid line electrode not only has a main grid line 1 which is longitudinally arranged, but also has a plurality of main grid lines 1 which are transversely arranged; in general, the width of the main grid line 1 is much larger than that of the thin grid line 2, so that the shading area of the main grid line 1 to the battery piece is much larger than that of the thin grid line 2. Therefore, in the conventional gate line electrode, the consumption of silver paste for the main gate line 1 is large, and the cost of raw materials is further increased.
(3) In the prior art, most of the slurry used for printing the main grid line 1 is non-contact main grid slurry; that is, the main gate line 1 formed by the non-contact main gate slurry does not form good ohmic contact with a semiconductor silicon wafer (silicon wafer for short); in the existing grid line electrode, a plurality of thin grid lines 2 are required to be added, so that the contact area between the thin grid lines 2 and a silicon wafer is increased to realize good ohmic contact; while the main gate line 1 and the thin gate line 2 of the gate line electrode are opaque. Therefore, the increase of the number of the 2 thin grid lines required by each cell slice increases the shading area of the surface of the cell slice, reduces the light contact area of the surface of the cell slice, and further has adverse effect on the photoelectric conversion efficiency of the photovoltaic cell.
(4) The existing grid line electrode also has the problem of small welding window of the welding strip, so that the grid breakage phenomenon is easy to occur in the welding process, and the welding yield is influenced.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a grid line electrode for a photovoltaic cell, the photovoltaic cell and a photovoltaic module.
Based on the above, the utility model discloses a grid line electrode for a photovoltaic cell, which comprises a main grid line, a first thin grid line and a second thin grid line; the first thin grid line and the second thin grid line are adjacent to each other and are transversely arranged; the main grid lines are arranged in a segmented mode along the longitudinal direction to form a plurality of sections of main grid line segments which are adjacent up and down;
The first thin grid line is connected with and extends to the left side and the right side of the adjacent main grid line segment, so that the first thin grid line comprises a first connecting part connected with the adjacent main grid line segment and a first extending part connected with the left end and the right end of the first connecting part; the second thin grid line is connected with and extends to the left side and the right side of the adjacent other main grid line segment, so that the second thin grid line comprises a second connecting part connected with the adjacent other main grid line segment and a second extending part connected with the left end and the right end of the second connecting part; the segmented position of the main grid line is positioned between the first connecting part and the second connecting part;
The distance between the first extending part and the second extending part is smaller than the distance between the first connecting part and the second connecting part, so that the distance between the first connecting part and the second connecting part is widened.
Preferably, the segment spacing between two adjacent main grid line segments is smaller than or equal to the widened spacing between the first connecting part and the second connecting part;
The segmentation distance between two adjacent main grid line segments is 20-30 um.
Preferably, the first extension part is integrally connected with the first connection part, and the second extension part is integrally connected with the second connection part;
The distance between the first connecting part and the second connecting part tends to be increased from the left side of the main grid line segment to the right side of the main grid line segment.
Further preferably, the spacing between the first connection portion and the second connection portion is greatest at the point where the main gate line segment is connected.
Preferably, the spacing between the first and second extensions is 16-23um, preferably 20um.
Preferably, the distance between the first connection portion and the second connection portion is greater than 20um and less than or equal to 40um.
Preferably, the length of each of the first connecting portion and the second connecting portion is 1-1.5mm.
Preferably, the width of the main grid line segment is 30-70 um, preferably 50um.
The utility model also discloses a photovoltaic cell, which comprises a semiconductor silicon wafer and a grid line electrode arranged on the semiconductor silicon wafer, and is characterized in that the grid line electrode comprises at least one grid line electrode for the photovoltaic cell.
The utility model also discloses a photovoltaic module, which comprises a photovoltaic front plate, a first packaging adhesive film, a photovoltaic cell, a second packaging adhesive film and a photovoltaic backboard which are sequentially laminated from top to bottom, wherein the photovoltaic cell is the photovoltaic cell.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
1. The grid line electrode for the photovoltaic cell increases the contact area between the first thin grid line and the second thin grid line and the surface of the silicon wafer because the first thin grid line and the second thin grid line are all left and right sides (the middle parts of the first thin grid line and the second thin grid line are not hollowed) of the whole through main grid line section; secondly, the distance between the first connecting part and the second connecting part is widened, so that the length of the whole grid line of the first thin grid line and the second thin grid line is increased, and the contact area between the thin grid line and the surface of the silicon wafer is increased; thirdly, as the main grid line is hollowed and segmented, the hollowed and segmented part is directly contacted with the surface of the silicon chip by the first thin grid line and the second thin grid line which are correspondingly connected, and the contact area of the block is also increased; and further, the contact capacity of the thin grid line and the battery piece is improved, the contact resistance is reduced, and the improvement of the battery efficiency is facilitated.
2. In the grid line electrode for the photovoltaic cell, a plurality of main grid lines which are transversely arranged are not arranged, and the main grid lines are arranged in a segmented mode, so that the consumption of silver paste can be reduced, and the raw material cost of the grid lines is reduced.
3. In the grid line electrode for the photovoltaic cell, the first thin grid line and the second thin grid line are connected and entirely penetrate through the left side and the right side (instead of lap joint) of the main grid line section, so that a plurality of main grid lines which are transversely arranged are not needed; therefore, the shading area of the grid line electrode for the photovoltaic cell to the cell piece is greatly reduced, and the improvement of the cell efficiency is facilitated.
4. According to the grid line electrode for the photovoltaic cell, a space for enough welding the upper and lower adjacent two sections of main grid line segments is reserved between the first connecting part and the second connecting part in the widening treatment, so that the welding window is large, the phenomenon that the grid line (such as the first grid line and/or the second grid line) is broken at the welding position caused by welding deviation of the welding strip can be effectively avoided, and the welding yield of the photovoltaic module can be improved.
Drawings
Fig. 1 is a schematic diagram of a conventional gate line electrode with a fishbone structure.
Fig. 2 is a schematic structural diagram of a gate line electrode for a photovoltaic cell according to the present embodiment.
Reference numerals illustrate: a main gate line 1; a main gate segment 11; a thin gate line 2; a first thin gate line 21; a first connection portion 211; a first extension 212; a second thin gate line 22; a second connection part 221; the second extension 222.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Examples
A gate line electrode for a photovoltaic cell of this embodiment, see fig. 2, includes a main gate line 1, a first thin gate line 21, and a second thin gate line 22. In each grid line electrode for the photovoltaic cell, the number of the main grid lines 1 is one; the number of the first thin grid lines 21 and the second thin grid lines 22 is multiple, so that the multiple first thin grid lines 21 and the multiple second thin grid lines 22 can fully collect the current on the battery piece; further, a plurality of first thin gate lines 21 and second thin gate lines 22 are connected to the main gate line 1 so that the main gate line 1 can collect current on each thin gate line.
Wherein, the first thin gate line 21 and the second thin gate line 22 are both disposed laterally, and the first thin gate line 21 and the second thin gate line 22 are adjacent to each other. The main grid lines 1 are arranged in a segmented manner along the longitudinal direction, so that a plurality of sections of main grid line segments 11 which are adjacent to each other are formed by the whole main grid line 1.
In the gate line electrode for a photovoltaic cell of this embodiment, two upper and lower adjacent main gate line segments 11 are respectively connected to one first thin gate line 21 and one second thin gate line 22 adjacent to each other. Taking two adjacent main grid line segments 11 as an example: the first thin grid line 21 is connected with a section of the main grid line segment 11 which is adjacent up and down, and the left and right ends of the first thin grid line 21 extend to the left and right sides of the section of the main grid line segment 11 which is adjacent up and down respectively; in this way, the first thin gate line 21 includes the first connection portion 211 connecting the upper and lower adjacent main gate line segments 11 and the first extension portions 212 connected to the left and right ends of the first connection portion 211 (i.e., the first thin gate line 21 includes one first connection portion 211 and two first extension portions 212, which are respectively located at the left and right ends of the first connection portion 211). The second thin gate line 22 is connected to another adjacent main gate line segment 11, and the left and right ends of the second thin gate line 22 extend to the left and right sides of the other adjacent main gate line segment 11; in this way, the second thin gate line 22 includes the second connection portion 221 connecting the other vertically adjacent main gate line segment 11 and the second extension portions 222 connected to the left and right ends of the second connection portion 221 (i.e., the second thin gate line 22 includes one second connection portion 221 and two second extension portions 222, which are respectively located at the left and right ends of the second connection portion 221). Further, the segment positions of the two vertically adjacent main gate line segments 11 are located between the first connection portion 211 and the second connection portion 221.
Further, the distance between the first extension portion 212 and the second extension portion 222 is smaller than the distance between the first connection portion 211 and the second connection portion 221; so that the interval between the first connection portion 211 and the second connection portion 221 is widened.
Therefore, compared with the existing grid line electrode with the fishbone structure, in the grid line electrode for the photovoltaic cell of this embodiment, the middle parts of the first thin grid line 21 and the second thin grid line 22 are not disconnected (or hollowed), and the first thin grid line 21 and the second thin grid line 22 are not overlapped with the main grid line segment 11, and after the first thin grid line 21 and the second thin grid line 22 of this embodiment are connected with the main grid line segment 11, the first thin grid line 21 and the second thin grid line 22 are all entirely penetrated through the left side and the right side of the main grid line segment 11; in addition, in the grid line electrode for a photovoltaic cell of this embodiment, only the main grid line 1 is longitudinally arranged, and a plurality of main grid lines are not transversely arranged.
Thus, compared with the existing grid line electrode with the fishbone structure, the grid line electrode for the photovoltaic cell of the embodiment has the following advantages:
(1) In the gate line electrode for a photovoltaic cell of this embodiment, first, since the first thin gate line 21 and the second thin gate line 22 are all entirely penetrating through the left and right sides of the main gate line 11, the contact area between the first thin gate line 21 and the second thin gate line 22 and the surface of the silicon wafer is increased; second, since the interval between the first connection portion 211 and the second connection portion 221 between the first thin gate line 21 and the second thin gate line 22 is widened, the overall gate line length of the first thin gate line 21 and the second thin gate line 22 is increased, which also increases the contact area of the thin gate line with the surface of the silicon wafer; finally, as the main grid line 1 is hollowed and segmented, the hollowed and segmented part is directly contacted with the surface of the silicon chip by the first thin grid line 21 and the second thin grid line 22 which are correspondingly connected, and the contact area of the block is also increased; the contact capacity with the battery piece is improved, the contact resistance is reduced, and the improvement of the battery efficiency is facilitated (experiments prove that the battery efficiency of the battery piece adopting the grid line electrode for the photovoltaic battery of the embodiment is improved by at least 0.1 percent, and the gain is mainly obtained by short-circuit current ISC and filling factor FF).
(2) In general, the amount of silver paste consumed by the main gate line 1 is much larger than that of the thin gate line; in the grid line electrode for the photovoltaic cell of the embodiment, since a plurality of main grid lines transversely arranged are not arranged, the consumption of silver paste can be reduced, and the consumption of silver paste can be further reduced by the sectional arrangement of the main grid lines 1, so that the raw material cost of the grid line electrode for the photovoltaic cell of the embodiment is reduced.
(3) In general, the width of the main grid line 1 is much larger than that of the thin grid line, so that the shading area of the main grid line 1 to the battery piece is much larger than that of the thin grid line; in the gate line electrode for a photovoltaic cell of this embodiment, the first thin gate line 21 and the second thin gate line 22 are connected and entirely penetrate through the left and right sides (instead of overlapping) of the main gate line segment 11, so that a plurality of main gate lines arranged transversely are not required; after the interval between the first connection portion 211 and the second connection portion 221 is gradually widened, the maximum interval between the first connection portion 211 and the second connection portion 221 is only 40um (the width of the main grid line 1 is preferably 50 um); therefore, the shading area of the grid line electrode for the photovoltaic cell for the cell sheet is greatly reduced, and the improvement of the cell efficiency is facilitated.
(4) The pitch between the first connection portion 211 and the second connection portion 221 is widened compared to the pitch between the first extension portion 212 and the second extension portion 222 (i.e., the partial connection portion of the first thin gate line 21 and the second thin gate line 22 to the main gate line 11 is widened); in this way, a space (or window) for enough welding the two sections of the main grid line segments 11 adjacent to each other up and down is reserved between the first connecting portion 211 and the second connecting portion 221 in the widening process, so that the welding window is large, and therefore, in the process of welding the two sections of the main grid line segments 11 adjacent to each other up and down through the welding of the welding strip, the phenomenon that the grid line (such as the first grid line 21 and/or the second grid line 22) is broken at the welding position caused by welding deviation of the welding strip can be effectively avoided, and the welding yield of the photovoltaic module can be improved.
Specifically, the first extension portion 212 is integrally connected with the first connection portion 211, and the second extension portion 222 is integrally connected with the second connection portion 221; to simplify the process of fabricating the first thin gate line 21 and the second thin gate line 22, reduce the fabrication cost, and reduce the contact resistance between the first extension portion 212 and the first connection portion 211, and between the second extension portion 222 and the second connection portion 221.
Preferably, the distance between the first connection portion 211 and the second connection portion 221 increases and decreases from the left side of the main gate line segment 11 to the right side of the main gate line segment 11; also, the pitch between the first connection portion 211 and the second connection portion 221 is greatest at the point where the main gate line segment 11 is connected. In this way, at the welding position of the welding strip, the distance between the first connecting portion 211 and the second connecting portion 221 is the largest, so that a larger space (or window) can be reserved for welding two sections of the main grid line segments 11 which are adjacent up and down, the welding window is further increased, and the welding yield of the photovoltaic module is further improved.
In this embodiment, the distance between the first extension 212 and the second extension 222 is 16-23um, preferably 20um. And the interval between the first connection portion 211 and the second connection portion 221 is greater than 20um and less than or equal to 40um; preferably, the maximum distance between the first connection portion 211 and the second connection portion 221 is 40um to ensure a large welding window.
In this embodiment, the lengths of the first connection portion 211 and the second connection portion 221 are 1-1.5mm. Preferably, the first extension portion 212 and the first connection portion 211 are symmetrically disposed along the left and right sides of the main gate line segment 11, and the second extension portion 222 and the second connection portion 221 are symmetrically disposed along the left and right sides of the main gate line segment 11. And the width of the main grid line segment 11 is 30-70 um; the width of the main grid line segment 11 is preferably equal to 50um, so as to further reduce the consumption of silver paste and further reduce the shading area of the main grid line segment 11 to the surface of the battery piece.
Specifically, the segment pitch between two upper and lower adjacent main gate line segments 11 is smaller than or equal to the widened pitch between the first connection portion 211 and the second connection portion 221; so that the two adjacent main grid line segments 11 are welded by the subsequent welding strips, and the phenomenon of grid breakage of the thin grid line is further avoided. The segment pitch between two adjacent main grid line segments 11 is preferably 20-30 um, for example, 20um, 23um, 25um, 28um or 30um.
The photovoltaic cell comprises a semiconductor silicon wafer and a grid line electrode arranged on the semiconductor silicon wafer. The semiconductor silicon chip refers to the semiconductor silicon chip of the existing photovoltaic cell, so that the description is omitted. And the grid line electrode comprises at least one grid line electrode for a photovoltaic cell according to the embodiment.
A photovoltaic module of this embodiment includes: the photovoltaic front plate, the first packaging adhesive film, the photovoltaic cell, the second packaging adhesive film and the photovoltaic backboard are sequentially arranged in a laminated mode from top to bottom. The photovoltaic front plate, the first packaging adhesive film, the second packaging adhesive film and the photovoltaic backboard refer to the existing photovoltaic assembly structure, so that the description is omitted. The photovoltaic cell is one of the photovoltaic cells described in this embodiment.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.
The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (10)
1. The grid line electrode for the photovoltaic cell is characterized by comprising a main grid line, a first thin grid line and a second thin grid line; the first thin grid line and the second thin grid line are adjacent to each other and are transversely arranged; the main grid lines are arranged in a segmented mode along the longitudinal direction to form a plurality of sections of main grid line segments which are adjacent up and down;
The first thin grid line is connected with and extends to the left side and the right side of the adjacent main grid line segment, so that the first thin grid line comprises a first connecting part connected with the adjacent main grid line segment and a first extending part connected with the left end and the right end of the first connecting part; the second thin grid line is connected with and extends to the left side and the right side of the adjacent other main grid line segment, so that the second thin grid line comprises a second connecting part connected with the adjacent other main grid line segment and a second extending part connected with the left end and the right end of the second connecting part; the segmented position of the main grid line is positioned between the first connecting part and the second connecting part;
The distance between the first extending part and the second extending part is smaller than the distance between the first connecting part and the second connecting part, so that the distance between the first connecting part and the second connecting part is widened.
2. The grid line electrode for a photovoltaic cell according to claim 1, wherein a segment pitch between two upper and lower adjacent main grid line segments is smaller than or equal to a widened pitch between the first connection portion and the second connection portion;
The segmentation distance between two adjacent main grid line segments is 20-30 um.
3. The grid electrode for a photovoltaic cell according to claim 1, wherein the first extension portion is integrally connected to the first connection portion, and the second extension portion is integrally connected to the second connection portion;
The distance between the first connecting part and the second connecting part tends to be increased from the left side of the main grid line segment to the right side of the main grid line segment.
4. A grid line electrode for a photovoltaic cell according to claim 3, wherein the distance between the first connection portion and the second connection portion is greatest at the point where the main grid line segment is connected.
5. The grid line electrode for a photovoltaic cell according to claim 1, wherein a distance between the first extension portion and the second extension portion is 16-23um.
6. The grid line electrode for a photovoltaic cell according to claim 1, wherein a distance between the first connection portion and the second connection portion is greater than 20um and less than or equal to 40um.
7. The grid line electrode for a photovoltaic cell according to claim 1, wherein the first and second connection portions each have a length of 1 to 1.5mm.
8. The grid line electrode for a photovoltaic cell according to claim 1, wherein the width of the main grid line section is 30 to 70um.
9. A photovoltaic cell comprising a semiconductor silicon wafer and a gate line electrode provided on the semiconductor silicon wafer, characterized in that the gate line electrode comprises at least one gate line electrode for a photovoltaic cell according to any one of claims 1 to 8.
10. A photovoltaic module comprising a photovoltaic front panel, a first packaging adhesive film, a photovoltaic cell, a second packaging adhesive film and a photovoltaic back panel which are sequentially laminated from top to bottom, wherein the photovoltaic cell is the photovoltaic cell of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279111.8U CN221201185U (en) | 2023-08-23 | 2023-08-23 | Grid line electrode for photovoltaic cell, photovoltaic cell and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279111.8U CN221201185U (en) | 2023-08-23 | 2023-08-23 | Grid line electrode for photovoltaic cell, photovoltaic cell and photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN221201185U true CN221201185U (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322279111.8U Active CN221201185U (en) | 2023-08-23 | 2023-08-23 | Grid line electrode for photovoltaic cell, photovoltaic cell and photovoltaic module |
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| CN (1) | CN221201185U (en) |
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- 2023-08-23 CN CN202322279111.8U patent/CN221201185U/en active Active
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