CN217973475U - Anode assembly is electroplated to battery piece, battery piece plating bath and electroplating equipment - Google Patents
Anode assembly is electroplated to battery piece, battery piece plating bath and electroplating equipment Download PDFInfo
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- CN217973475U CN217973475U CN202222159372.1U CN202222159372U CN217973475U CN 217973475 U CN217973475 U CN 217973475U CN 202222159372 U CN202222159372 U CN 202222159372U CN 217973475 U CN217973475 U CN 217973475U
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Abstract
The embodiment of the utility model provides a battery piece electroplating anode assembly, a battery piece electroplating bath and electroplating equipment, wherein the battery piece electroplating anode assembly comprises an anode container, and the anode container is used for containing anode metal required by battery piece electroplating; the anode container comprises four side walls and a bottom plate, wherein the four side walls are opposite to each other in pairs, are connected one by one, enclose and are all connected with the bottom plate to form a space for containing anode metal; at least one set of two opposite side walls are obliquely arranged, and the distance between the two obliquely arranged side walls is gradually increased along the direction far away from the bottom plate. The anode container with the structure is beneficial to reducing the edge effect when the battery piece is plated at the beginning, avoids the phenomena of thicker grid lines or burrs and the like at the edge of the battery piece, and is beneficial to improving the uniformity and the electroplating quality of the grid lines.
Description
Technical Field
The utility model relates to a solar wafer electroplates the field, especially relates to a positive pole subassembly, battery piece plating bath and electroplating device are electroplated to battery piece.
Background
When an electrode of a solar cell is prepared, a screen printing process is generally adopted in the traditional process, and an electroplating technology is increasingly and widely researched as a novel electrode preparation method. The electroplated electrode has higher height-width ratio and better conductivity compared with the screen printing electrode, so that the internal resistance of the cell is reduced, and the loss of shading and the like is reduced, thereby further improving the photoelectric conversion efficiency of the solar cell. Electroplating is used as a promising electrode preparation method, and can greatly reduce the cost in the production process of the solar cell.
In the existing battery piece electroplating process, when electroplating is carried out, the battery piece gradually enters an electroplating cavity to generate electrochemical reaction with anode metal to form grid lines, and because each part of the battery piece generates electrochemical reaction with the anode metal in sequence to generate an electroplating edge effect, the grid lines are not uniform enough, and the electroplating quality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anode assembly, battery piece plating bath and electroplating device are electroplated to battery piece to solve grid line not enough even among the current battery piece electroplating process, electroplate the not good problem of quality.
In order to solve the above problem, the utility model discloses a realize like this:
in an embodiment of the present invention, a battery piece electroplating anode assembly is provided, which includes an anode container for containing anode metal required for battery piece electroplating;
the anode container comprises four side walls and a bottom plate, wherein the four side walls are opposite to each other in pairs, are connected one by one, enclose and are all connected with the bottom plate to form a space for containing the anode metal;
at least one set of two opposite side walls are obliquely arranged, and the distance between the two obliquely arranged side walls is gradually increased along the direction far away from the bottom plate.
Optionally, four of the side walls are all obliquely arranged to form a quadrangular frustum shape.
Optionally, the cell plating anode assembly further comprises a separation bracket;
the partition holder is provided inside the anode container, and is used for forming a gap through which the plating solution flows between the granular anode metals.
Optionally, the side wall and the bottom plate are both provided with meshes for the circulation of the plating solution.
Optionally, the cell plating anode assembly further comprises a strainer disposed inside or outside the anode container.
Optionally, the mesh has a density of at least 250/dm 2 。
Optionally, the aperture of the mesh is 3mm to 5mm.
The embodiment of the utility model provides an in, still provide a battery piece plating bath, the battery piece plating bath includes aforementioned any kind of battery piece electroplating anode assembly.
Optionally, the plating tank further comprises a liquid supply box and a liquid supply pipe;
a liquid outlet hole communicated with the inner cavity of the liquid supply box is formed in one surface of the liquid supply box, the liquid supply pipe is connected to the surface of the liquid supply box, which is not provided with the liquid outlet hole, and is communicated with the inner cavity of the liquid supply box, and the liquid supply pipe is used for injecting plating solution into the liquid supply box;
the battery piece electroplating anode assembly is placed inside the liquid supply box, and the bottom plate is close to the liquid outlet hole.
The embodiment of the utility model provides an in, still provide a battery piece electroplating device, battery piece electroplating device includes aforementioned any kind of battery piece plating bath.
In the anode assembly for electroplating the battery piece, the anode assembly for electroplating the battery piece comprises an anode container, wherein the anode container is used for containing anode metal required by electroplating the battery piece; the anode container comprises four side walls and a bottom plate, wherein the four side walls are opposite to each other in pairs, are connected one by one, enclose and are all connected with the bottom plate to form a space for containing anode metal; at least one set of two opposite side walls are obliquely arranged, and the distance between the two obliquely arranged side walls is gradually increased along the direction far away from the bottom plate. The anode container with the structure is beneficial to reducing the edge effect when the battery piece is plated at the beginning, avoids the phenomena of thicker grid lines or burrs and the like at the edge of the battery piece, and is beneficial to improving the uniformity and the electroplating quality of the grid lines.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a first cell plating anode assembly according to an embodiment of the present invention;
fig. 2 shows a schematic view of fig. 1 along the X-direction according to an embodiment of the present invention;
fig. 3 shows a schematic view of fig. 1 along the Y-direction according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second cell plating anode assembly according to an embodiment of the present invention;
fig. 5 shows a schematic view of fig. 4 along the X-direction according to an embodiment of the present invention;
fig. 6 shows a schematic view of fig. 4 along the Y direction according to an embodiment of the present invention;
FIG. 7 is a schematic view of a third embodiment of an anode assembly for electroplating a cell plate;
FIG. 8 is a schematic view of a cell plating bath according to an embodiment of the present invention;
fig. 9 is a schematic view of a battery plate electroplating apparatus according to an embodiment of the present invention.
Description of reference numerals:
an anode container-10, a battery piece-20, a side wall-101, a bottom plate-102, a separation bracket-103, a liquid supply box-30 and a liquid supply pipe-31.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1, an embodiment of the present invention provides a battery plate electroplating anode assembly, which includes an anode container 10, where the anode container 10 is used for containing anode metal required by battery plate electroplating;
the anode container 10 comprises four side walls 101 and a bottom plate 102, wherein the four side walls 101 are opposite to each other in pairs, are connected one by one, enclose and are all connected with the bottom plate 102 to form a space for accommodating the anode metal;
at least one set of two opposite side walls 101 are obliquely arranged, and the distance between the two obliquely arranged side walls 102 is gradually increased along the direction away from the bottom plate 102.
Particularly, the utility model discloses anode assembly is electroplated to battery piece for the anode assembly that solar wafer electroplates and prepares grid line in-process and use, like the schematic of fig. 1, this anode assembly includes anode container 10, and anode container 10 is used for holding the required anode metal of battery piece electroplating, and the anode metal that holds in the anode container 10 is connected with the power positive pole to and under the effect of plating solution, can form electroplating return circuit jointly through electroplating negative pole and battery piece. The anode container 10 includes four sidewalls 101 and a bottom plate 102, wherein the four sidewalls 101 are opposite to each other in pairs, are connected one by one to surround and are all connected with the bottom plate 102 to form a space for accommodating anode metal. As shown in fig. 1, at least one set of two opposite sidewalls 101 is obliquely arranged, and the distance between the obliquely arranged sidewalls 102 is gradually increased in a direction away from the bottom plate 102. With reference to the schematic illustration of fig. 1, it can be easily understood that the anode container 10 has a smaller cross-sectional size on the side close to the bottom plate 102 and a larger cross-sectional size on the side far from the bottom plate 102, and has an approximately open horn shape.
With reference to the schematic diagram of fig. 3, when the cell 20 moves through the anode container 10 in a posture parallel to the bottom plate 102, as the cell 20 gradually approaches the anode container 10 from a far distance, the distance between any part of the cell 20 to be plated and the side wall 102 gradually decreases from large to small along the illustrated Z direction until the distance between the part and the bottom plate 102 is kept constant after the part moves into the projection area of the bottom plate 102. The anode container 10 of the above-described type can achieve a gradual change in pitch regardless of which side the cell sheet 20 moves to the opposite side because at least one set of the opposite two side walls 101 is arranged obliquely.
Therefore, the anode container 10 with the structure is beneficial to reducing the edge effect when the battery piece is plated at the beginning, avoiding phenomena such as thicker grid lines or burrs and the like at the edge of the battery piece, and being beneficial to improving the uniformity and the electroplating quality of the grid lines.
Alternatively, referring to fig. 4 to 6, four sidewalls 101 are each obliquely arranged to form a quadrangular frustum shape.
Specifically, in one embodiment, as shown in fig. 4 to 6, the four side walls 101 of the anode container 10 are inclined with respect to the bottom plate 102, and the four side walls 101 and the bottom plate 102 are connected to form a quadrangular frustum shape, so that when the rectangular battery piece 20 is moved in a translational manner under the anode container 10, the uniformity and uniformity of the grid lines on the four sides of the battery piece 20 are improved.
Optionally, referring to fig. 7, the cell plating anode assembly further comprises a partition bracket 103;
the partition holder 103 is provided inside the anode container 10, and forms a gap through which the plating solution flows between the granular anode metals.
Specifically, in one embodiment, as shown in fig. 7, a partition holder 103 may be attached and fixed to the inside of the anode container 10 in order to prevent the granular anode metal from being deposited too densely and blocking the flow of the plating solution, thereby affecting the plating quality. The partition holder 103 may have a grid-like frame structure, and may partition the internal space of the anode container 10, partition granular anode metals into a plurality of different spaces, and form large gaps between the anode metals to promote the flow of the plating solution.
Optionally, the side wall 101 and the bottom plate 102 are both provided with meshes for the circulation of the plating solution.
Specifically, in one embodiment, the side wall 101 and the bottom plate 102 may be provided with mesh openings for allowing the plating solution to flow therethrough, so that the plating solution can rapidly flow to the surface of the cell 20 outside the anode container 10 through the mesh openings provided in the side wall 101 and the bottom plate 102, thereby ensuring the supply amount of the plating solution.
Optionally, the cell plating anode assembly further comprises a screen disposed inside or outside the anode container 10.
Specifically, in one embodiment, in order to further improve the electroplating quality, a smaller and denser filter screen may be installed inside or outside the anode container 10 to filter impurities in the electroplating solution, so as to avoid embedding impurities on grid lines on the surface of the battery cell to affect the conductivity of the grid lines, and meanwhile, the filter screen may also avoid the blockage of the mesh holes for the circulation of the electroplating solution.
Optionally, the mesh has a density of at least 250/dm 2 。
Specifically, in one embodiment, the mesh is not too sparse, which may result in poor flow of the plating solution, and has a density of at least 250 pieces/dm 2 For example, it may be 250/dm 2 275 pieces/dm 2 300/dm 2 325/dm 2 350 pieces/dm 2 375 pieces/dm 2 And the like. The denser the mesh is, the better the particulate anode metal will be in the condition of being leak-freePromotes the circulation of the electroplating solution, can ensure the full contact of the electroplating solution and the anode metal, and has higher electroplating speed.
Optionally, the aperture of the mesh is 3mm to 5mm.
Specifically, in one embodiment, besides controlling the mesh density, the aperture can be designed to be any one of 3mm, 3.5mm, 4mm, 4.5mm and 5mm, which also helps to ensure sufficient contact between the plating solution and the anode metal and faster plating speed.
The embodiment of the utility model provides an in, still provide a battery piece plating bath, the battery piece plating bath includes aforementioned any kind of battery piece electroplating anode assembly.
Particularly, the embodiment of the utility model provides a still provide a battery piece plating bath, can place foretell arbitrary kind of battery piece electroplating anode assembly in the plating bath, make the liquid level of plating solution submerge the positive pole metal that holds in the positive pole container, can make the cation of plating solution obtain supplementing, this kind of plating bath is when being used for the electroplating of battery piece grid line, helps improving electroplating edge effect equally, can promote electroplating quality.
Optionally, referring to fig. 8, the plating bath further includes a supply cartridge 30 and a supply tube 31;
a liquid outlet hole communicated with the inner cavity of the liquid supply box 30 is formed in one surface of the liquid supply box 30, the liquid supply pipe 31 is connected to the surface of the liquid supply box 30, where the liquid outlet hole is not formed, and is communicated with the inner cavity of the liquid supply box 30, and the liquid supply pipe 31 is used for injecting plating solution into the liquid supply box;
the anode assembly for electroplating the battery piece is placed inside the liquid supply box 30, and the bottom plate 102 is close to the liquid outlet hole.
Specifically, as illustrated in fig. 8, the plating tank further includes a liquid supply cassette 30 and a liquid supply tube 31. The liquid supply box 30 can be a box body container with six enclosed sides and closed, one surface of the liquid supply box is provided with a liquid outlet hole communicated with the inner cavity of the liquid supply box 30, and the surface is parallel to the battery piece when the battery piece is electroplated.
In addition, the plating tank further includes a liquid supply tube 31 connected to the other surface of the liquid supply box 30, and the liquid supply tube 31 is communicable with an external plating solution pumping device to inject the plating solution into the inner cavity of the liquid supply box 30 through the liquid supply tube 31. For example, a heat-resistant and corrosion-resistant metal pipe may be welded to the surface of liquid supply box 30 made of metal, or a flange structure may be attached to the surface of liquid supply box 30 for connecting liquid supply pipe 31. When the anode assembly is mounted inside the liquid supply box 30, the bottom plate 102 is close to the liquid outlet hole. Thus, the plating solution after being sufficiently contacted with the anode metal in the anode container 10 can flow to the surface of the cell 20 through the liquid outlet hole.
Referring to fig. 9, in an embodiment of the present invention, a battery piece electroplating apparatus is further provided, where the battery piece electroplating apparatus includes any one of the foregoing battery piece electroplating baths.
Particularly, the embodiment of the utility model provides a battery piece electroplating device is still provided, can adopt the battery piece plating bath buffer memory plating solution that any preceding embodiment provided in this kind of electroplating device, when the battery piece entered into this electroplating device, the battery piece can contact with the plating solution in the battery piece plating bath, accomplishes the electroplating of grid line. With reference to the schematic diagram of fig. 9, two electroplating baths may be arranged in a mirror symmetry manner from top to bottom, and the electroplating anode assembly as described above is installed and disposed in each electroplating bath, so that double-sided electroplating of the battery piece may be achieved. By using the cell electroplating bath, the electroplating equipment is beneficial to improving the electroplating edge effect, and the electroplating quality can be improved.
Need explain, in electroplating process, the battery piece can be relative battery piece plating bath translation motion under other actuating mechanism's drive to, form the grid line at the different positions on battery piece surface, the utility model discloses the explanation is not being repeated to this.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (10)
1. The anode assembly for electroplating the battery piece is characterized by comprising an anode container, a cathode container and a cathode container, wherein the anode container is used for containing anode metal required by electroplating the battery piece;
the anode container comprises four side walls and a bottom plate, wherein the four side walls are opposite to each other in pairs, are connected one by one, enclose and are all connected with the bottom plate to form a space for containing the anode metal;
at least one set of two opposite side walls are obliquely arranged, and the distance between the two obliquely arranged side walls is gradually increased along the direction far away from the bottom plate.
2. The battery plate electroplating anode assembly of claim 1, wherein each of the four side walls is obliquely arranged to form a quadrangular frustum shape.
3. The cell plating anode assembly of claim 1, further comprising a separator bracket;
the separation support is arranged in the anode container and is used for forming a gap for the circulation of electroplating liquid between granular anode metals.
4. The anode assembly for electroplating a battery piece according to claim 1, wherein the side wall and the bottom plate are provided with meshes for the circulation of a plating solution.
5. The battery tab plating anode assembly of claim 4, further comprising a screen disposed inside or outside the anode container.
6. The anode assembly of claim 5, wherein the mesh has a density of at least 250 meshes/dm 2 。
7. The battery plate electroplating anode assembly according to claim 5, wherein the mesh openings have a pore size of 3mm to 5mm.
8. A cell plating bath comprising the cell plating anode assembly of any of claims 1 to 7.
9. The plating cell of claim 8, further comprising a supply cassette and a supply tube;
a liquid outlet hole communicated with the inner cavity of the liquid supply box is formed in one surface of the liquid supply box, the liquid supply pipe is connected to the surface of the liquid supply box, which is not provided with the liquid outlet hole, and is communicated with the inner cavity of the liquid supply box, and the liquid supply pipe is used for injecting plating solution into the liquid supply box;
the battery piece electroplating anode assembly is placed inside the liquid supply box, and the bottom plate is close to the liquid outlet hole.
10. A cell plating apparatus, characterized in that the plating apparatus comprises a cell plating bath according to claim 8 or 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159372.1U CN217973475U (en) | 2022-08-16 | 2022-08-16 | Anode assembly is electroplated to battery piece, battery piece plating bath and electroplating equipment |
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| CN202222159372.1U CN217973475U (en) | 2022-08-16 | 2022-08-16 | Anode assembly is electroplated to battery piece, battery piece plating bath and electroplating equipment |
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| CN217973475U true CN217973475U (en) | 2022-12-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067514A1 (en) * | 2022-09-26 | 2024-04-04 | 隆基绿能科技股份有限公司 | Solar cell electroplating device and solar cell electroplating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024067514A1 (en) * | 2022-09-26 | 2024-04-04 | 隆基绿能科技股份有限公司 | Solar cell electroplating device and solar cell electroplating method |
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