Electrode optimization mechanism for battery piece coating equipment

Abstract

The utility model discloses an electrode optimization mechanism for battery piece coating equipment, which comprises a battery piece, a clamp assembly, an upper anode titanium mesh, a lower anode titanium mesh and a cathode conductive track, the upper anode titanium mesh is fixed on an upper anode support after being welded with an upper conductive flat, the upper conductive flat is connected with a power anode through an upper anode titanium copper-clad flat, and the lower anode titanium mesh is fixed on a lower anode support through a lower anode titanium copper-clad flat. The lower anode titanium mesh and the lower conductive flat are fixed on the lower anode bracket after being welded together, the lower conductive flat is connected with another power anode through the lower anode titanium copper-clad flat, and the upper anode titanium mesh and the lower anode titanium mesh are respectively and independently conducted with the power anode through the independent upper anode titanium copper-clad flat and the independent lower anode titanium copper-clad flat. And the cathode conductive rail is fixed in the rail fixing plate groove, and is connected with the cathode titanium clad copper flat at a preset position of the cathode conductive rail. By controlling the current of the upper layer and the lower layer, a uniform and effective electric field condition can be provided, an effective metal film layer is generated on the grid line on the surface of the battery piece, and the production yield of the battery piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to an electrode optimization mechanism for battery cell coating equipment. Background Art

[0002] At present, the industry prefers horizontal structure to realize metal grid formation of battery cells: generally, multiple rows of battery cells are directly flowed into the roller conveyor mechanism, and after passing through the set process environment in turn, the required conductive film layer is generated on the surface of the battery cell; in this way, the battery cell is prone to a series of problems such as broken pieces, deviation, stacking, and carding during the transmission process; at the same time, related equipment manufacturers mostly use brushes or roller brushes as the coal medium between the negative electrode of the power supply and the grid electrode of the battery cell. With the above scheme, on the one hand, as the grid line of the battery cell is generated, the brush or roller brush material will be deposited with corresponding metal particles synchronously, thereby scratching the subsequent grid line film layer of the battery cell, which is not conducive to the mass production of the battery cell; on the other hand, the brush or roller brush mechanism, as an in-line device, needs to be shut down, replaced and maintained periodically, which brings many hidden dangers to the continuous production of the production line; the brush or roller brush mechanism is a floating contact, and as the production progresses, its tip characteristics will change all the time, which will cause the contact to be occasional, which brings great challenges to the quality of battery cell coating.

[0003] At present, in the photovoltaic field, the industry prefers horizontal coating structure to realize metal grid formation of battery cells. At the same time, related equipment manufacturers mostly use brushes or rollers as the medium between the negative electrode of the power supply and the grid electrode of the battery cell. In this way, in order to reduce or even avoid direct contact between the brushes or rollers and the liquid medicine, thereby extending their service life, it is generally necessary to arrange the spacing between adjacent brushes or rollers according to the specifications of the battery cell, and set anode titanium mesh between adjacent brushes or rollers. Therefore, the arranged anode titanium mesh must be processed in multiple pieces, and at the same time, it is necessary to avoid the interference of the transmission roller, which brings great challenges to the installation and horizontal adjustment of the titanium mesh, and easily brings troubles to the quality of the generated battery cell coating. Utility Model Content

[0004] In response to the above problems, the utility model provides an electrode optimization mechanism for a cell coating device, which can provide uniform and effective electric field conditions for the cell to be plated passing through a plating tank by controlling the current of the upper and lower layers, thereby generating an effective metal film layer on the surface grid lines of the cell.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an electrode optimization mechanism for battery cell coating equipment, including a battery cell, a fixture assembly for carrying the battery cell, and an upper anode titanium mesh, a lower anode titanium mesh, and a cathode conductive rail arranged in a plating tank, wherein the upper anode titanium mesh and the lower anode titanium mesh are arranged at a certain height above and below the effective space channel of the wafer carrier fixture assembly through which the plating solution flows, and the upper anode titanium mesh is welded together with the upper conductive flat and fixed to the upper anode bracket, and the upper conductive flat is connected to the power anode on the pedestrian side through the upper anode titanium clad copper flat fixed to the side of the tank body, and the lower anode titanium mesh is welded together with the lower conductive flat and fixed to the lower anode bracket, and the lower conductive flat is connected to another power anode on the pedestrian side through the lower anode titanium clad copper flat fixed to the side of the tank body, and the upper anode titanium mesh and the lower anode titanium mesh are respectively connected to the power anode through the independent upper anode titanium clad copper flat and the lower anode titanium clad copper flat, and the cathode conductive rail is fixed in the rail fixing plate slot and connected to the cathode titanium clad copper flat at a preset position of the cathode conductive rail.

[0006] Furthermore, the brushes preset on the fixture assembly are always in sliding contact with the lower surface of the cathode conductive rail.

[0007] Furthermore, the two sides of the upper anode bracket are locked with the upper anode bracket adjustment code, and the bracket adjustment code is provided with an elliptical hole, which is fixed to the slot partition plate by screws.

[0008] Furthermore, the front and rear surfaces of the lower anode support are locked with the lower anode support adjustment code and fixed to the capacity reduction box by screws.

[0009] Furthermore, the upper anode titanium-clad copper flat, the lower anode titanium-clad copper flat, and the cathode titanium-clad copper flat are respectively fixed to the side wall of the plating tank through titanium-clad copper flat fixing codes.

[0010] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0011] 1. After the upper and lower anode titanium meshes of the utility model are fixed to the titanium mesh support frame, they are fixed to the slot partition plate by screws, which is conducive to the spatial position adjustment and the corresponding maintenance work can be completed without stopping the machine, thereby improving the UPTIME of the coating equipment.

[0012] 2. The anode mesh of the utility model is processed in one piece and fixed on the titanium mesh support frame, which ensures the convenience of installation and fixation of the anode titanium mesh, is conducive to electric field regulation, and forms a more stable and reliable electric field, thereby improving the production yield of the battery cell; the cathode conductive rail is fixed in the rail fixing plate groove, and during the transmission process, the brush is always slid and connected with the lower surface of the cathode conductive rail, which ensures the effective conduction between the cathode current and the battery cell grid line, and solves the problem that the cathode conductive device needs to be replaced frequently due to its life; this structure can provide uniform and effective electric field conditions by controlling the upper and lower layer currents, and generate an effective metal film layer on the grid line on the surface of the battery cell, which can greatly enhance the market competitiveness of the coating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative 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:

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a side structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example

[0019] refer to Figure 1-Figure 3, An electrode optimization mechanism for a cell film coating device, comprising a cell 1, a fixture assembly 2 for carrying the cell, an upper anode titanium mesh 3, a lower anode titanium mesh 11, and a cathode conductive track 9 arranged in a coating tank, wherein the upper anode titanium mesh 3 and the lower anode titanium mesh 11 are arranged at a certain height above and below the effective space channel through which the plating solution flows through the cell holder assembly 2, the upper anode titanium mesh 3 is welded together with an upper conductive flat 31 and fixed to an upper anode bracket 4, the upper conductive flat 31 is connected to a power source anode on the pedestrian side through an upper anode titanium copper-clad flat 6 fixed to the side of the tank body, the lower anode titanium mesh 11 is welded together with a lower conductive flat 111 and fixed to the lower anode bracket 4, The anode bracket 12 and the lower conductive flat 111 are connected to another power anode on the pedestrian side through the lower anode titanium clad copper flat 7 fixed to the side of the trough body. The upper anode titanium mesh 3 and the lower anode titanium mesh 11 are separately connected to the power anode through the independent upper anode titanium clad copper flat 6 and the lower anode titanium clad copper flat 7, so as to effectively control and adjust the electric field strength of the upper and lower layers of the battery cell 1. The cathode conductive rail 9 is fixed in the groove of the rail fixing plate 10 and is connected to the cathode titanium clad copper flat 8 at the preset position of the cathode conductive rail 9. The upper anode titanium clad copper flat 6, the lower anode titanium clad copper flat 7, and the cathode titanium clad copper flat 8 are respectively fixed to the side wall of the plating tank through the titanium clad copper flat fixing code 61.

[0020] Both sides of the upper anode bracket 4 are locked with the bracket adjustment code 41, and the bracket adjustment code 41 is provided with an elliptical hole 5, which is fixed to the slot partition plate 14 by screws; the front and back surfaces of the lower anode bracket 12 are locked with the bracket adjustment code 121 and fixed to the reduction box 13 by screws; after the upper and lower anode titanium meshes are fixed to the titanium mesh support frame, they are fixed to the slot partition plate by screws, which is conducive to the adjustment of their spatial position and can complete the corresponding maintenance work without stopping the machine, thereby improving the UPTIME of the coating equipment.

[0021] The anode titanium mesh and the conductive flat are welded together, which can effectively solve the problem of uneven current distribution caused by the poor conductivity of the titanium mesh itself and objective limitations; the layout of the conductive flat and the anode titanium mesh can be adjusted accordingly according to the actual current distribution conditions, thereby forming a better electric field condition.

[0022] The upper and lower anode nets can use titanium, zirconium or other suitable metals as the base material according to the different process environments in the plating tank, and their surfaces can be coated with iridium oxide or other precious metal oxide films; the conductive flat can use copper, stainless steel or other suitable metals as the base material according to the different process environments in the plating tank, and its surface can be coated with titanium, zirconium or other suitable metals for corrosion protection.

[0023] The brush 21 can be made of stainless steel, graphite or other better materials according to the process environment, so that the cathode current can be more smoothly connected to the fixture assembly 2 to reduce the power loss during the coating process.

[0024] During the production process, the fixture assembly 2 carrying the battery cell 1 is driven by the transmission mechanism to be transferred in the plating tank at a certain liquid level height. An upper anode titanium mesh 3 and a lower anode titanium mesh 11 are respectively arranged at a certain height above and below the effective space channel through which the plating solution flows from the wafer carrier fixture assembly 2; the upper anode titanium mesh 3 is welded with the upper conductive flat 31 and then fixed to the upper anode bracket 4. The upper conductive flat 31 is connected to the power anode on the pedestrian side through the upper anode titanium-clad copper flat 6 fixed to the side of the tank body; the lower anode titanium mesh 11 is welded with the lower conductive flat 111 and then connected to the power anode. , fixed to the lower anode bracket 12, the lower conductive flat 111 is connected to another power anode on the pedestrian side through the lower anode titanium-clad copper flat 7 fixed to the side of the tank body; the cathode conductive rail 9 is fixed in the groove of the rail fixing plate 10, and at the same time, it is connected to the cathode titanium-clad copper flat 8 at a preset position of the cathode conductive rail 9; when the fixture assembly 2 carrying the battery cell 1 is transferred in the plating tank, the preset brush 21 on the fixture assembly 2 is always in sliding contact with the lower surface of the cathode conductive rail 9, thereby realizing effective conduction between the grid line electrode on the surface of the battery cell 1 and the power cathode.

[0025] The present invention is applicable to an anode titanium mesh arranged at a certain height above and below the effective space channel of the wafer carrier fixture through which the plating solution flows. The anode titanium mesh can be made into a whole titanium mesh according to the slot partition plate of the plating slot section and the processing limitation of the titanium mesh, and fixed on the titanium mesh support frame, thus ensuring the convenience of installation and fixation of the anode titanium mesh and facilitating the subsequent electric field regulation; at the same time, the cathode conductive track is fixed in the track fixing plate slot, and during the transmission process, the preset brush on the fixture is always slidably connected with the lower surface of the cathode conductive track, thereby realizing effective conduction between the grid line electrode on the surface of the battery cell and the cathode of the power supply; thus, effective conduction between the cathode current and the grid line of the battery cell is ensured, and the problem of frequent replacement of the cathode conductive device due to its life is solved.

[0026] By adopting this preferred electrode structure and controlling the current of the upper and lower layers, uniform and effective electric field conditions can be provided for the battery cells to be plated passing through the plating tank, thereby generating an effective metal film layer on the surface grid lines of the battery cells, which can greatly enhance the market competitiveness of the coating equipment.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrode optimization mechanism for a cell coating device, characterized in that: The invention comprises a battery cell (1), a fixture assembly (2) for carrying the battery cell, an upper anode titanium mesh (3), a lower anode titanium mesh (11), and a cathode conductive track (9) arranged in a plating tank, wherein the upper anode titanium mesh (3) and the lower anode titanium mesh (11) are arranged at a certain height from the upper and lower layers of an effective space channel through which the plating solution flows in the carrier fixture assembly (2), the upper anode titanium mesh (3) and the upper conductive flat (31) are welded together and fixed to the upper anode bracket (4), the upper conductive flat (31) is connected to the power source anode on the pedestrian side through the upper anode titanium copper-clad flat (6) fixed to the side of the tank body, and the lower anode titanium mesh (11) is connected to the power source anode on the pedestrian side. After the anode titanium mesh (11) and the lower conductive flat (111) are welded together, they are fixed to the lower anode bracket (12). The lower conductive flat (111) is connected to another power source anode on the pedestrian side through a lower anode titanium-clad copper flat (7) fixed to the side of the trough body. The upper anode titanium mesh (3) and the lower anode titanium mesh (11) are separately connected to the power source anode through independent upper anode titanium-clad copper flats (6) and lower anode titanium-clad copper flats (7). The cathode conductive rail (9) is fixed in the groove of the rail fixing plate (10) and is connected to the cathode titanium-clad copper flat (8) at a preset position of the cathode conductive rail (9).

2. According to claim 1, an electrode optimization mechanism for a cell film coating device is characterized in that: The preset brush (21) on the clamp assembly (2) is always in sliding contact with the lower surface of the cathode conductive track (9).

3. The electrode optimization mechanism for a cell film coating device according to claim 1, characterized in that: The two sides of the upper anode support (4) are locked with the upper anode support adjustment code (41), and the support adjustment code (41) is provided with an elliptical hole (5) which is fixed to the slot partition plate (14) by screws.

4. The electrode optimization mechanism for a cell film coating device according to claim 1, characterized in that: The front and rear surfaces of the lower anode support (12) are locked with the lower anode support adjustment code (121) and fixed to the capacity reduction box (13) by screws.

5. The electrode optimization mechanism for a cell film coating device according to claim 1, characterized in that: The upper anode titanium-clad copper flat (6), the lower anode titanium-clad copper flat (7), and the cathode titanium-clad copper flat (8) are respectively fixed to the side wall of the plating tank through titanium-clad copper flat fixing codes (61).

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