Copper foil electrolytic cell

Abstract

The application provides a copper foil electrolytic cell, which comprises a cell body, an anode and at least two rib plates; the cell body has a circular arc-shaped bottom plate; the anode is arranged on the bottom plate and has a circular arc shape matched with the bottom plate; the rib plates are arranged between the cell body and the anode, extend along the radial direction of the anode and are distributed along the circumferential direction of the anode, and the rib plates are in conductive connection with the anode. The rib plates and the lower surface of the anode are in line contact along the circumferential direction of the anode, so that the rib plates and the anode are better fitted, the uniformity of the electric conduction of the anode is improved, the problems of uneven electrode coating loss and oxidation of the electrode conduction part caused by uneven electric conduction distribution due to the fact that the anode and the cell body base cannot be completely fitted in the traditional electrolytic cell are effectively prevented, and the service life of the anode is ensured and the quality of the produced copper foil is improved. Meanwhile, the rib plates are connected with the anode, and the strength of the anode is increased, so that the anode is protected.

Description

Technical Field

[0001] This invention relates to the field of electrolysis application technology, and more particularly to copper foil electrolytic cells. Background Technology

[0002] As the demand for lithium batteries increases, the demand for copper foil, one of the main materials used in lithium battery production, is also rising. However, the electrolytic cell, the main equipment used in copper foil production, has many problems.

[0003] In traditional electrolytic cells, the anode is typically installed on the cell base using an embedded or back-pull method, making assembly and disassembly very cumbersome. Furthermore, the fit between the anode and the base determines the current distribution within the electrolytic cell. However, due to varying degrees of dimensional and shape errors in the manufacturing process of curved anodes and bases, assembly errors are introduced during installation. Consequently, the curved anode and base often cannot fit perfectly together. This can lead to uneven electrode coating wear and oxidation of conductive parts due to uneven conductivity distribution, ultimately affecting the anode's lifespan and the quality of the produced copper foil.

[0004] Furthermore, traditional electrolytic cells typically introduce liquid from an inlet located in the middle of the cell bottom, which can mechanically scour the anode and cathode, thereby reducing the lifespan of the anode and affecting the quality of the copper foil generated on the cathode.

[0005] Therefore, it is necessary to develop new types of copper foil electrolytic cells and optimize the distribution of electrolyte and current to improve anode lifespan, copper foil product quality, and production efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a copper foil electrolytic cell to improve the service life of the anode and the quality of copper foil products.

[0007] According to one aspect of the present invention, a copper foil electrolytic cell is provided, comprising:

[0008] A trough having an arc-shaped bottom plate;

[0009] An anode, disposed on the base plate and having an arc shape matching the base plate; and

[0010] At least two stiffeners are disposed between the tank and the anode, the stiffeners extending radially along the anode and distributed circumferentially along the anode, and the stiffeners are electrically connected to the anode.

[0011] According to the scheme, by arranging the rib plate extending along the radial direction of the anode and distributed along the circumferential direction of the anode between the tank body and the anode, the rib plate and the anode are in conductive connection, and linear contact is achieved between one side of the rib plate and the lower surface of the anode, which can make the rib plate and the anode better fit, improve the uniformity of anode conduction, which can effectively prevent the problems of uneven electrode coating loss and electrode conduction site oxidation caused by uneven conduction between the anode and the tank body base in the traditional electrolytic cell, thereby ensuring the service life of the anode and improving the quality of the produced copper foil. At the same time, the rib plate connected with the anode can also increase the strength of the anode and protect the anode.

[0012] In one embodiment, the tank body also has a first side wall and a second side wall on both sides thereof;

[0013] The first side wall and the second side wall are symmetrically arranged on both sides of the axial direction of the bottom plate and connected with the bottom plate;

[0014] The two ends of the rib plate respectively protrude from the first inner wall surface of the first side wall and the second inner wall surface of the second side wall, and respectively form a first end and a second end;

[0015] The copper foil electrolytic cell further comprises a copper bar arranged on at least one side of the first side wall and the second side wall, and the copper bar is in conductive connection with the first end or the second end.

[0016] In one embodiment, the first side wall and the second side wall each have a hollow cavity, the first end is arranged in the hollow cavity of the first side wall, and the second end is arranged in the hollow cavity of the second side wall;

[0017] The copper bar is arranged in the hollow cavity of the first side wall or the hollow cavity of the second side wall.

[0018] According to the above two schemes, by conductive connection between the copper bar and the first end or the second end, the electric current can be directly and uniformly conducted to the surface of the anode, improving the uniformity of the electric current.

[0019] In one embodiment, the rib plate is connected with the bottom plate of the tank body.

[0020] According to the scheme, by connecting the rib plate to the bottom plate of the tank body, the uniformity of the conduction of the copper foil electrolytic cell can be improved, thereby uniformly distributing the electric current in the electrolytic cell and improving the electrolysis efficiency. In addition, the rib plate can also support the arc-shaped space between the tank body and the anode.

[0021] In one embodiment, the rib plate further has at least one through hole configured to fluidly connect the areas on both sides of the rib plate.

[0022] According to the scheme, by setting the through hole on the rib plate, the electrolyte in the two side areas of the rib plate can flow to each other, and the electrolysis efficiency is improved.

[0023] In an embodiment, the rib plate is a titanium-copper composite plate.

[0024] In an embodiment, the anode is a mesh structure.

[0025] According to the above two schemes, the titanium-copper composite plate has good electrical conductivity, which can make the current uniformly distributed and improve the efficiency of electrolysis. At the same time, the anode with a mesh structure is easy to process and has a large specific surface area, which can make the current density of the anode more uniform, improve the water permeability of the anode to increase the mass transfer of the solution system, and thus improve the efficiency of electrolysis.

[0026] In an embodiment, the copper foil electrolytic cell further comprises a support net; the support net is arranged between the tank body and the anode, and the anode is supported by the support net.

[0027] In an embodiment, the bottom plate, the anode and the support net are coaxially arranged.

[0028] According to the above two schemes, by arranging the support net between the tank body and the anode, the anode is fixed and supported by the support net, which can protect the anode and improve the service life of the anode.

[0029] In an embodiment, the copper foil electrolytic cell further comprises at least two liquid distribution pipes, which are arranged on the bottom plate of the tank body and uniformly distributed along the circumferential direction of the bottom plate, and the axial direction of the liquid distribution pipe is the same as the axial direction of the bottom plate.

[0030] In an embodiment, the liquid distribution pipe and the rib plate are alternately arranged along the circumferential direction of the bottom plate.

[0031] In an embodiment, the material of the liquid distribution pipe is titanium, PTFE or PVDF.

[0032] According to the above three schemes, a plurality of liquid distribution pipes are arranged on the bottom plate of the tank body, and the liquid distribution is completed by uniform distribution, which can greatly reduce or avoid the mechanical scouring effect of the electrolyte on the anode and the cathode, ensure the service life of the anode, and improve the quality of the copper foil generated on the cathode. At the same time, it can also make the electrolyte in the tank body uniformly distributed, thereby ensuring the uniformity of the concentration and temperature of the electrolyte inside the tank body, and improving the efficiency of the electrolysis reaction.

[0033] In an embodiment, the copper foil electrolytic cell further comprises a discharge pipe arranged at the center of the bottom plate.

[0034] According to the scheme, compared with the traditional electrolytic cell, the liquid inlet and emptying of the electrolytic cell are completed by the liquid inlet located at the middle position of the bottom surface of the cell body, and the copper foil electrolytic cell in the scheme can respectively and independently realize the liquid inlet and emptying of the electrolyte through the independently arranged liquid distribution pipe and emptying pipe. BRIEF DESCRIPTION OF DRAWINGS

[0035] For better understanding of the above and other objects, features, advantages and functions of the present application, reference can be made to the preferred embodiments shown in the accompanying drawings. The same reference signs in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to illustrate the preferred embodiments of the present application, and have no limiting effect on the scope of the present application, and the various parts in the drawings are not drawn to scale.

[0036] Figure 1 A schematic view of a copper foil electrolytic cell according to an embodiment of the present application;

[0037] Figure 2 A schematic view of the structure of a copper foil electrolytic cell according to an embodiment of the present application;

[0038] Figure 3 A schematic view of the structure of a copper foil electrolytic cell according to an embodiment of the present application;

[0039] Figure 4 A schematic view of the structure of a copper foil electrolytic cell according to an embodiment of the present application; Figure 3 An enlarged schematic view of the rib plate in

[0040] Figure 5 A side view of a copper foil electrolytic cell according to an embodiment of the present application;

[0041] Figure 6 A schematic view of the structure of a copper foil electrolytic cell according to an embodiment of the present application;

[0042] Figure 7 A front view of a copper foil electrolytic cell according to an embodiment of the present application;

[0043] Figure 8 A top view of a copper foil electrolytic cell according to an embodiment of the present application.

[0044] Reference signs:

[0045] 100 - copper foil electrolytic cell 1 - cell body 11 - bottom plate

[0046] 12 - bent edge 13 - first side wall 131 - first inner wall surface

[0047] 132 - first outer wall surface 133 - first upper wall surface 134 - first opening

[0048] 14 - second side wall 141 - second inner wall surface 142 - second outer wall surface

[0049] 143 - second upper wall surface 144 - second opening 15 - accommodating cavity

[0050] 16 - first cross beam 17 - second cross beam 2 - anode

[0051] 3 - rib plate 31 - first end 32 - second end

[0052] 4 - copper bar 41 - first copper bar 42 - second copper bar

[0053] 5 - liquid distribution pipe 6 - emptying pipe 7 - liquid outlet pipe

[0054] 8 - exhaust pipe DETAILED DESCRIPTION

[0055] The specific embodiments of the present application will now be described in detail with reference to the accompanying drawings. The preferred embodiments described herein are merely exemplary and those skilled in the art can conceive other ways to achieve the present application on the basis of the preferred embodiments, and the other ways also fall within the scope of the present application.

[0056] The embodiment of the present application provides a copper foil electrolytic cell 100. As shown in the figure, the electrolytic cell 100 is overall arc-shaped. Of course, the electrolytic cell 100 can also be designed only with an internal arc shape, and the external shape is not limited. The electrolytic cell 100 can include a cell body 1 and an anode 2. Figure 1 As shown in the figure, the bottom plate 11 inside the cell body 1 is arc-shaped, and the inside of the cell body 1 is used to accommodate the electrolyte and is used to accommodate the anode 2. The bottom plate 11 extends to the inside of the cell body 1 at both ends in the length direction of the cell body 1, forming a bent edge 12.

[0057] Figure 2 Returning to , the cell body 1 also has a first side wall 13 and a second side wall 14 on both sides, the first side wall 13 and the second side wall 14 are symmetrically arranged on both sides of the axial direction of the bottom plate 11, and are connected with the bottom plate 11. The bottom plate 11, the bent edge 12, the first side wall 13 and the second side wall 14 jointly form an accommodating cavity 15 inside the cell body 1, as shown in the figure.

[0058] Figure 1 Figure 2

[0059] ​​​The shape of the anode 2 can be a circular arc shape that is adapted to the shape of the bottom plate 11 of the tank body 1, for causing the electrolyte to undergo an oxidation reaction. The anode 2 and the bottom plate 11 of the tank body 1 can each preferably be provided in a semicircular arc shape structure. The anode 2 is arranged on the bottom plate 11 of the tank body 1 and is connected with the bent edge 12, the first side wall 13 and the second side wall 14 of the tank body 1, so that the accommodating cavity 15 inside the tank body 1 becomes a closed space. It should be noted that the above-mentioned “closed space” is intended to illustrate that the structure and connection relationship of the tank body 1 and the anode 2 has the effect of forming a hollow accommodating cavity 15 in space, but does not exclude the possibility that the electrolyte in the “closed space” reaches other spaces outside the “closed space” through the anode 2.

[0060] As shown in Figures 2 to 4 The electrolytic tank 100 can further include at least two rib plates 3. The rib plates 3 are arranged between the tank body 1 and the anode 2, i.e. in the accommodating cavity 15 of the tank body 1. The shape of the rib plate 3 can be a long strip shape, and the rib plate 3 extends along the radial direction of the anode 2 and is distributed along the circumferential direction of the anode 2. The rib plate 3 is in conductive connection with the anode 2.

[0061] In a conventional copper foil electrolytic tank, the anode is usually installed on the electrolytic tank base in an embedded or back-pulled manner, which is very cumbersome to disassemble and assemble. Moreover, the fit between the anode and the base determines the distribution state of the current in the electrolytic tank, but due to the existence of different degrees of dimensional and shape errors in the processing of the arc-shaped anode and the arc-shaped base, a certain degree of assembly error will also be introduced in the installation process. Therefore, the arc-shaped anode and the arc-shaped base in the conventional electrolytic tank often cannot be completely fitted, which may cause uneven electrode coating loss and oxidation of the electrode conductive part due to uneven conductive distribution, thereby affecting the service life of the anode and the quality of the produced copper foil.

[0062] The copper foil electrolytic tank 100 provided by the embodiment of the present application has the rib plate 3 arranged between the tank body 1 and the anode 2, which extends along the radial direction of the anode 2 and is distributed along the circumferential direction of the anode 2. The rib plate 3 is in conductive connection with the anode 2, and linear contact is achieved between one side of the rib plate 3 and the lower surface of the anode 2, which can make the rib plate 3 and the anode 2 better fitted, improve the uniformity of the conductive of the anode 2, and effectively prevent the problems of uneven electrode coating loss and oxidation of the electrode conductive part caused by uneven conductive distribution due to the incomplete fit between the anode and the tank base in the conventional electrolytic tank, thereby ensuring the service life of the anode 2 and improving the quality of the produced copper foil. At the same time, the connection of the rib plate 3 and the anode 2 can also increase the strength of the anode 2 and protect the anode 2.

[0063] The rib plate 3 can be a titanium-copper composite plate. Preferably, the rib plate 3 is uniformly distributed along the circumferential direction of the anode 2.

[0064] The titanium-copper composite plate has good electrical conductivity, and the plurality of rib plates 3 arranged on the bottom plate 11 of the tank body 1 in a uniform distribution manner can uniformly distribute the current and improve the efficiency of electrolysis.

[0065] As shown in Figure 1 and Figure 4 , the first side wall 13 has a first inner wall surface 131, and the second side wall 14 has a second inner wall surface 141, and the first inner wall surface 131 and the second inner wall surface 141 are respectively connected with the bottom plate 11 of the tank body 1. The two ends of the rib plate 3 respectively extend out of the first inner wall surface 131 of the first side wall 13 and the second inner wall surface 141 of the second side wall 14, and respectively form the first end 31 and the second end 32.

[0066] As shown in Figure 5 and Figure 6 , the copper foil electrolytic tank 100 can further include a copper bar 4 arranged on at least one side of the first side wall 13 and the second side wall 14, and the copper bar 4 is in conductive connection between the first end 31 or the second end 32.

[0067] The shape of the copper bar 4 can be a circular arc similar to the shape of the anode 2. The copper bar 4 can include a first copper bar 41 and a second copper bar 42. The first copper bar 41 is connected with the first end 31 of the rib plate 3, and the second copper bar 42 is connected with the second end 32 of the rib plate 3.

[0068] As shown in Figure 1 and Figure 5 , the first side wall 13 and the second side wall 14 can also be provided as a hollow structure and have a hollow cavity. The first end 31 and the first copper bar 41 can be arranged in the hollow cavity of the first side wall 13, and the second end 32 and the second copper bar 42 can be arranged in the hollow cavity of the second side wall 14.

[0069] The copper foil electrolytic tank 100 provided by the embodiment of the present application can directly and uniformly guide the current to the surface of the anode 2 through the conductive connection between the copper bar 4 and the first end 31 or the second end 32, thereby improving the uniformity of the current.

[0070] In an exemplary embodiment, as shown in Figure 1 , the first side wall 13 can also have a first outer wall surface 132 and a first upper wall surface 133, wherein the first outer wall surface 132 is located away from the bottom plate 11. The first inner wall surface 131 and the first outer wall surface 132 can be symmetrically arranged in the thickness direction of the first side wall 13, and the shapes of the two can be provided as "T" shape.

[0071] The first side wall 13 also has a first opening 134. The shape of the first opening 134 is preferably provided as a circular arc. The first opening 134 is arranged on the side of the first side wall 13 close to the internal center of the tank body 1, and extends from the first inner wall surface 131 to the first outer wall surface 132 and intersects with the first upper wall surface 133.

[0072] The second side wall 14 also has a second outer wall surface 142, which is located on the side away from the bottom plate 11. The second inner wall surface 141 and the second outer wall surface 142 can be symmetrically arranged in the thickness direction of the second side wall 14, and their shapes can be arranged as "T" shapes.

[0073] The second side wall 14 also has a second opening 144. The shape of the second opening 144 is preferably arranged as a circular arc. The second opening 144 is arranged on the side of the second side wall 14 close to the inner center of the tank body 1, and extends from the second inner wall surface 141 to the second outer wall surface 142 and intersects with the second upper wall surface 143.

[0074] The first opening 134 and the second opening 144 are used together to accommodate the cathode.

[0075] In the Figure 5 , the first end 31 of the rib plate 3 extends along the axial direction of the anode 2 and protrudes from the first inner wall surface 131 of the first side wall 13, is located between the first inner wall surface 131 and the first outer wall surface 132, and is connected with the first copper bar 41. The second end 32 of the rib plate 3 extends along the axial direction of the anode 2 and protrudes from the second inner wall surface 141 of the second side wall 14, is located between the second inner wall surface 141 and the second outer wall surface 142, and is connected with the second copper bar 42.

[0076] In addition, the rib plate 3 can be connected with the bottom plate 11 of the tank body 1. Preferably, the rib plate 3 can also pass through the bottom plate 11 of the tank body 1, as shown in Figure 7 The bottom plate 11 of the tank body 1 has a through plate hole, and the shape of the through plate hole is adapted to the cross-sectional shape of the rib plate 3, so that the rib plate 3 can pass through. The rib plate 3 and the bottom plate 11 of the tank body 1 can be fixed and sealed by welding. The welding method is preferably full welding.

[0077] The copper foil electrolytic tank 100 provided in the embodiment adopts a welding method to fixedly connect the rib plate 3 on the bottom plate 11 of the tank body 1, which can improve the uniformity of the electric conduction of the copper foil electrolytic tank 100, and further make the current in the electrolytic tank 100 uniformly distributed, thereby improving the electrolysis efficiency. In addition, the rib plate 3 can also support the arc-shaped space between the tank body 1 and the anode 2.

[0078] The rib plate 3 also includes at least one through hole, which is arranged through in the thickness direction of the rib plate 3, for fluid communication between the areas on both sides of the rib plate 3. By arranging the through hole on the rib plate 3, the electrolyte in the areas on both sides of the rib plate 3 can flow into each other, thereby improving the electrolysis efficiency.

[0079] In the example embodiment, the anode 2 can be provided in a mesh structure. The mesh structure of the anode 2 is easy to process and has a large specific surface area, which can make the current density of the anode 2 more uniform and improve the water permeability of the anode 2 to increase the mass transfer of the solution system, thereby improving the electrolysis efficiency.

[0080] The material of the tank body 1 and the anode 2 can be titanium, which has good corrosion resistance. Preferably, the surface of the anode 2 can be provided with an iridium tantalum coating, which can significantly improve the electrocatalytic activity and mass transfer of the electrolyte of the anode 2.

[0081] The electrolytic tank 100 can further include a support net for fixing and supporting the anode 2. The shape of the support net can be a circular arc similar to the shape of the tank body 1. The support net is arranged on the bottom plate 11 of the tank body 1, and the support net is connected with the rib plate 3, the bent edge 12 of the tank body 1, the first side wall 13 and the second side wall 14. The support net is located between the tank body 1 and the anode 2, and the anode 2 is arranged on the side of the support net away from the tank body 1 and covers the surface of the support net. The anode 2 is fixed on the support net, that is, the anode 2 is supported by the support net.

[0082] The shape of the support net is preferably the same as that of the anode 2. The thickness of the support net can be greater than or equal to the thickness of the anode 2 to provide more stable support for the anode 2.

[0083] By arranging the support net between the tank body 1 and the anode 2 and fixing and supporting the anode 2 by the support net, the anode 2 can be protected and the service life of the anode 2 can be improved. The anode 2, the support net, the rib plate 3 and the bottom plate 11 of the tank body 1 are arranged in order from top to bottom, which can improve the reaction efficiency and service life of the anode 2.

[0084] The material of the support net can be titanium. In addition, the bottom plate 11, the anode 2 and the support net can also be coaxially arranged.

[0085] As shown in Figure 2 and Figure 7 The electrolytic tank 100 can further include a liquid distribution pipe 5 for introducing electrolyte into the tank body 1, and the number of the liquid distribution pipe 5 is at least two. The shape of the liquid distribution pipe 5 can be cylindrical.

[0086] The liquid distribution pipe 5 is arranged on the bottom plate 11 of the tank body 1 and is distributed along the circumferential direction of the bottom plate 11, preferably uniformly distributed. Preferably, the axial direction of the liquid distribution pipe 5 is the same as the axial direction of the bottom plate 11 of the tank body 1.

[0087] At least one through hole is formed on the outer circumferential surface of the liquid distribution pipe 5, and the through hole is in communication with the inside of the tank body 1 to introduce electrolyte into the tank body 1.

[0088] Traditional electrolytic cells typically introduce liquid from an inlet located in the middle of the cell bottom. This can cause mechanical scouring of the anode and cathode, which can reduce the lifespan of the anode and affect the quality of the copper foil produced on the cathode.

[0089] The copper foil electrolytic cell 100 of this embodiment of the invention has multiple liquid distribution pipes 5 arranged on the bottom plate 11 of the cell body 1. The electrolyte is introduced in a dispersed manner. Especially when the spacing is uniform, the mechanical scouring effect of the electrolyte on the anode 2 and cathode can be greatly reduced or avoided, ensuring the service life of the anode 2 and improving the quality of the copper foil generated on the cathode. At the same time, it also ensures the uniform distribution of the electrolyte entering the cell body 1, thereby ensuring the uniformity of electrolyte concentration and temperature inside the cell body 1 and improving the efficiency of the electrolytic reaction.

[0090] Preferably, the liquid distribution pipe 5 and the stiffening plate 3 are arranged alternately along the circumferential direction of the base plate 11.

[0091] The liquid distribution tube 5 can be made of titanium, PTFE or PVDF.

[0092] In addition, such as Figure 2 As shown, the copper foil electrolytic cell 100 may also include a drain pipe 6, which can drain the electrolyte in the electrolytic cell 100 during equipment maintenance. The drain pipe 6 may be located at the center of the bottom plate 11 of the cell body 1.

[0093] Compared to traditional electrolytic cells where the inlet located in the middle of the bottom surface of the cell is used to complete the filling and emptying of the electrolytic cell, the copper foil electrolytic cell 100 provided in this embodiment of the invention can realize the filling and emptying of the electrolyte separately through the independently arranged liquid distribution pipe 5 and the drain pipe 6.

[0094] like Figure 8 As shown, the copper foil electrolytic cell 100 may also include an outlet pipe 7, which can discharge the electrolyte in the electrolytic cell 100 during the electrolysis reaction.

[0095] The copper foil electrolytic cell 100 may also include an exhaust pipe 8, which can vent the gases generated by the electrolytic reaction and the evaporation of the electrolyte during the electrolytic reaction.

[0096] exist Figure 8 In the tank, the tank body 1 may also have a first crossbeam 16 and a second crossbeam 17. The first crossbeam 16 and the second crossbeam 17 are both disposed between the first sidewall 13 and the second sidewall 14 of the tank body 1 and are connected to the first sidewall 13 and the second sidewall 14 to form a frame structure with a rectangular cross-section. The bottom plate 11, the first sidewall 13, the second sidewall 14, the first crossbeam 16 and the second crossbeam 17 together form the internal space of the tank body 1 for accommodating the electrolyte and housing the anode 2.

[0097] The liquid outlet pipe 7 is arranged on the first cross beam 16 and / or the second cross beam 17, for example, the liquid outlet pipe 7 can be located at the middle position of the first cross beam 16 and / or the second cross beam 17 in the axial direction of the bottom plate 11. The liquid outlet pipe 7 can circulate the electrolyte inside the tank 1 and maintain the stable state of the electrolyte.

[0098] The air exhaust pipe 8 is also arranged on the first cross beam 16 and / or the second cross beam 17, for example, the air exhaust pipe 8 can be located on the side of the liquid outlet pipe 7 close to the first side wall 13 and / or the second side wall 14 of the tank 1.

[0099] The copper foil electrolytic tank 100 provided by the embodiment of the present application, the anode 2, the rib plate 3, the copper bar 4, the liquid distribution pipe 5, the emptying pipe 6, the liquid outlet pipe 7, the air exhaust pipe 8 and the support net are all arranged on the tank 1, and an integrated design is adopted, which can improve the uniformity of the electrolyte and the current and the stability of production.

[0100] The above description of various embodiments of the present application is provided to a person of ordinary skill in the relevant art for the purpose of description. The present application is not intended to be exclusive or limited to a single disclosed embodiment. As above, a person of ordinary skill in the art of the above teachings will understand various alternatives and modifications of the present application. Therefore, although some alternative embodiments are specifically described, a person of ordinary skill in the art will understand or relatively easily develop other embodiments. The present application is intended to include all alternatives, modifications and variations of the present application described herein, and other embodiments falling within the spirit and scope of the present application described above.

Claims

1. A copper foil electrolytic cell (100) characterized by, The application relates to a copper foil electrolytic cell (100) comprising: a groove body (1) having a circular-arc-shaped bottom plate (11); an anode (2) arranged on the bottom plate (11) and having a circular-arc shape matching the bottom plate (11); and at least two rib plates (3) arranged between the groove body (1) and the anode (2), the rib plates (3) being long-strip-shaped, extending along the radial direction of the anode (2) and distributed along the circumferential direction of the anode (2), and being electrically connected with the anode (2). The groove body (1) further has a first side wall (13) and a second side wall (14) on both sides thereof. The first side wall (13) and the second side wall (14) are symmetrically arranged on both sides of the axial direction of the bottom plate (11) and connected with the bottom plate (11). The two ends of the rib plate (3) respectively extend out of the first inner wall surface (131) of the first side wall (13) and the second inner wall surface (141) of the second side wall (14), and form a first end (31) and a second end (32) respectively. The copper foil electrolytic cell (100) further comprises a copper bar (4) arranged on at least one side of the first side wall (13) and the second side wall (14), and the copper bar (4) is electrically connected with the first end (31) or the second end (32). The first side wall (13) and the second side wall (14) each have a hollow cavity, the first end (31) is arranged in the hollow cavity of the first side wall (13), and the second end (32) is arranged in the hollow cavity of the second side wall (14).

2. The copper foil electrolytic cell (100) according to claim 1, characterized in that, The copper bar (4) is arranged in the hollow cavity of the first side wall (13) or the hollow cavity of the second side wall (14). The rib plate (3) is connected with the bottom plate (11) of the groove body (1).

3. The copper foil electrolytic cell (100) according to claim 2, characterized in that, The rib plate (3) further has at least one through hole configured to fluidly communicate the areas on both sides of the rib plate (3).

4. The copper foil electrolytic cell (100) according to claim 3, characterized in that, The rib plate (3) is a titanium-copper composite plate.

5. The copper foil electrolytic cell (100) of claim 1, wherein, The anode (2) is a mesh structure.

6. The copper foil electrolytic cell (100) of claim 1, wherein, The copper foil electrolytic cell (100) further comprises a support mesh.

7. The copper foil electrolytic cell (100) of claim 1, wherein, The support mesh is arranged between the groove body (1) and the anode (2), and the anode (2) is supported by the support mesh. The bottom plate (11), the anode (2) and the support mesh are coaxially arranged.

8. The copper foil electrolytic cell (100) according to claim 7, characterized in that, The copper foil electrolytic cell (100) further comprises at least two liquid distribution pipes (5) arranged on the bottom plate (11) of the groove body (1) and uniformly distributed along the circumferential direction of the bottom plate (11), and the axial direction of the liquid distribution pipes (5) is the same as the axial direction of the bottom plate (11).

9. The copper foil electrolytic cell (100) of claim 1, wherein, The liquid distribution pipes (5) and the rib plates (3) are alternately arranged along the circumferential direction of the bottom plate (11).

10. The copper foil electrolytic cell (100) according to claim 9, characterized in that, The liquid distribution pipes (5) are made of titanium, PTFE or PVDF.

11. The copper foil electrolytic cell (100) according to claim 9, characterized in that, The copper foil electrolytic cell (100) further comprises an emptying pipe (6) arranged at the center of the bottom plate (11).

12. The copper foil electrolytic cell (100) of claim 1, wherein, ​

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