Electrode assembly and electrolytic bath

Abstract

The electrode assembly comprises a plurality of plate frames and a conducting rod, the plurality of plate frames are sequentially arranged along a first direction, each plate frame is provided with two through holes, anode plates and cathode plates are alternately arranged among the plurality of plate frames, and the conducting rod is arranged between the plurality of plate frames. The anode plate is provided with a first abutting part corresponding to one through hole, the cathode plate is provided with a second abutting part corresponding to the other through hole, the two conducting rods penetrate through the two through holes respectively, one conducting rod abuts against the multiple first abutting parts, and the other conducting rod abuts against the multiple second abutting parts. The other conducting rod abuts against the multiple second abutting parts, and the two conducting rods are used for being connected with the positive electrode and the negative electrode of a power source respectively. The power connection mode of the anode plate and the cathode plate is changed from the outside of the plate frame to the inside of the plate frame, so that the exposed area of a conductive part of the device is reduced, the wind direction of electric shock short circuit is reduced, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, in particular to an electrode assembly and an electrolytic cell. Background Art

[0002] Cobalt is a shiny steel-gray metal that is relatively hard and brittle. It is ferromagnetic and loses its magnetism when heated to 1150°C. Cobalt has two valences: divalent and trivalent. It does not react with water at room temperature and is also stable in humid air. When heated to above 300°C in air, it oxidizes to form CoO and burns to form CO at white heat. 3 O 4 The fine metallic cobalt powder produced by hydrogen reduction can spontaneously combust in the air to generate cobalt oxide. Electrolytic cobalt requires an electrolytic cell for electrolytic operation.

[0003] Patent CN101250726A discloses a closed electrolytic cell and electrolytic system, which comprises: two end plates, an anode assembly, a cathode assembly, a seal and a clamping device; both end plates are provided with liquid flow ports, the anode assembly and the cathode assembly are provided with liquid flow through holes correspondingly, the anode assembly and the cathode assembly are arranged between the two end plates at intervals, an electrode chamber is formed between the anode assembly and the cathode assembly, seals are arranged at the contact points between the anode assembly, the cathode assembly and the end plates, and the anode assembly, the cathode assembly and the end plates are clamped by the clamping device to form a closed structure.

[0004] In the above-mentioned prior art, conductive bars are arranged at the upper ends of the anode plate and the cathode plate, and the conductive bars are used to be electrically connected to an external power source. However, all the conductive bars are located outside the plate frame, and there are certain safety hazards when the conductive bars are charged during operation. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and to propose an electrode assembly to solve the technical problem that in the prior art, conductive bars are provided at the upper ends of the anode plate and the cathode plate, the conductive bars are used to be electrically connected to an external power supply, and all the conductive bars are located outside the plate frame, and there are certain safety hazards caused by the charged conductive bars during operation.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an electrode assembly, comprising:

[0008] A plurality of plate frames are sequentially arranged along a first direction, the plate frames are provided with two through holes, anode plates and cathode plates are alternately arranged between the plurality of plate frames, the anode plate is provided with a first abutting portion corresponding to one of the through holes, and the cathode plate is provided with a second abutting portion corresponding to another through hole;

[0009] Two conductive rods are respectively inserted into two through holes, wherein one of the conductive rods abuts against the first abutting portions, and the other conductive rod abuts against the second abutting portions, and the two conductive rods are respectively connected to the positive and negative electrodes of the power supply.

[0010] In some embodiments, the conductive rod is provided with threads on its outer circumference;

[0011] The electrode assembly further includes two nuts, which are respectively threadedly connected to two ends of the conductive rod to press the plate frame, the anode plate and the cathode plate.

[0012] In some embodiments, the diameter of the through hole is greater than the diameter of the conductive rod;

[0013] The anode plate is provided with a first through hole, the first through hole is used for the conductive rod to pass through, one end of the first abutment portion is provided in the first through hole, and the other end of the first abutment portion is bent along a first direction and extends into one of the through holes;

[0014] The cathode plate is provided with a second through hole, the second through hole is used for the conductive rod to pass through, one end of the second abutting portion is provided in the second through hole, and the other end of the second abutting portion is bent along the first direction and extends into another through hole.

[0015] In some embodiments, the first abutting portion and the second abutting portion are arranged to be inclined toward the middle of the through hole.

[0016] In some embodiments, the first abutting portion and the second abutting portion are elastically telescopically arranged along a direction approaching and away from a middle portion of the conductive rod.

[0017] In some embodiments, the first abutting portion and the second abutting portion are both arranged in an arc shape to match the conductive rod.

[0018] In some embodiments, the two through holes include a first through hole and a second through hole, the first abutting portion corresponds to the first through hole, and the second abutting portion corresponds to the second through hole;

[0019] The anode plate is provided with a first avoidance hole corresponding to the second through hole, and the cathode plate is provided with a second avoidance hole corresponding to the first through hole. The diameters of the first avoidance hole and the second avoidance hole are both larger than the diameter of the conductive rod.

[0020] In some embodiments, an insulating coating is provided around the first avoidance hole and the second avoidance hole.

[0021] In some embodiments, the electrode assembly further comprises two end plates, the two end plates being arranged at both ends of the plurality of plate frames along the first direction, the end plates being provided with mounting holes corresponding to the through holes, the mounting holes being used for the conductive rods to pass through; and / or,

[0022] One side of the anode plate and the cathode plate is provided with a positioning protrusion, and the positioning protrusion is used to fit with the positioning groove of the frame.

[0023] In addition, the utility model also provides an electrolytic cell, which includes a frame and the electrode assembly described in the above technical solution. A positioning groove is provided on one side of the frame, and the positioning groove extends along a first direction. The plate frame, the anode plate and the cathode plate are all placed on the frame, and the positioning protrusion extends into the positioning groove to limit the movement of the anode plate and the cathode plate along a second direction. The first direction and the second direction are perpendicular to each other.

[0024] Compared with the prior art, the utility model provides an electrode assembly, in which a plurality of plate frames are arranged in sequence along a first direction, the plate frame is provided with two through holes, anode plates and cathode plates are alternately arranged between the plurality of plate frames, the anode plate is provided with a first abutting portion corresponding to one of the through holes, the cathode plate is provided with a second abutting portion corresponding to the other through hole, two conductive rods are respectively passed through the two through holes, one of the conductive rods abuts against a plurality of the first abutting portions, and the other conductive rod abuts against a plurality of the second abutting portions, the two conductive rods are used to be respectively connected to the positive and negative poles of a power source, the anode plate and the cathode plate are of comparable size to the plate frame, the conductive rods are arranged in the through holes, and only the two ends of the conductive rods extend out of the channel and are located outside the plate frame, so that the power connection mode of the anode plate and the cathode plate is changed from outside the plate frame to inside the plate frame, thereby reducing the area of ​​the conductive parts of the device exposed to the outside, reducing the risk of electric shock and short circuit, and having high safety.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of an electrolytic cell provided by the utility model;

[0027] Figure 2 yes Figure 1 The front view of the electrolytic cell;

[0028] Figure 3 It is a three-dimensional schematic diagram of the electrode assembly provided by the utility model;

[0029] Figure 4 yes Figure 3 a top cross-sectional view of the middle electrode assembly;

[0030] Figure 5 yes Figure 3 A partial left-side sectional view of the middle electrode assembly;

[0031] Figure 6 yes Figure 3 A three-dimensional schematic diagram of the middle plate frame;

[0032] Figure 7 yes Figure 3 A three-dimensional schematic diagram of the anode plate;

[0033] Figure 8 yes Figure 7 Partial schematic diagram of the anode plate.

[0034] Description of reference numerals:

[0035] 100-electrode assembly, 1-plate frame, 11-through hole, 12-first flow channel, 13-second flow channel, 14-gas channel, 2-conductive rod, 3-anode plate, 31-first abutment portion, 32-first through hole, 33-first avoidance hole, 34-positioning protrusion, 4-cathode plate, 41-second abutment portion, 42-second through hole, 43-second avoidance hole, 5-nut, 6-end plate, 7-screw connection, 200-frame. DETAILED DESCRIPTION

[0036] 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.

[0037] In order to solve the technical problem that in the prior art, conductive bars are provided at the upper ends of the anode plate and the cathode plate, the conductive bars are used to be electrically connected to an external power source, while all the conductive bars are located outside the plate frame, and there are certain safety hazards caused by the charged conductive bars during operation, the utility model provides an electrode assembly, which changes the power connection method of the anode plate and the cathode plate from outside the plate frame to inside the plate frame, thereby reducing the area of ​​the conductive parts of the device exposed to the outside, reducing the risk of electric shock and short circuit, and having high safety.

[0038] See also Figure 1 to Figure 2The utility model provides an electrolytic cell, which includes a frame 200 and the electrode assembly 100 described in the above technical solution. A positioning groove is provided on one side of the frame 200, and the positioning groove is extended along a first direction. The plate frame 1, the anode plate 3 and the cathode plate 4 are all placed on the frame 200, and the positioning protrusion 34 extends into the positioning groove to limit the movement of the anode plate 3 and the cathode plate 4 along a second direction. The first direction and the second direction are perpendicular to each other.

[0039] See also Figure 3 , Figure 3 It is a structural schematic diagram of an electrode assembly in one embodiment of the utility model.

[0040] The utility model provides an electrode assembly 100, comprising a plurality of plate frames 1 and conductive rods 2, wherein the plurality of plate frames 1 are arranged in sequence along a first direction, the plate frames 1 are provided with two through holes 11, anode plates 3 and cathode plates 4 are alternately arranged between the plurality of plate frames 1, the anode plate 3 is provided with a first abutting portion 31 corresponding to one of the through holes 11, the cathode plate 4 is provided with a second abutting portion 41 corresponding to the other through hole 11, two conductive rods 2 are respectively penetrated through the two through holes 11, one of the conductive rods 2 abuts against a plurality of the first abutting portions 31, and the other conductive rod 2 abuts against a plurality of the second abutting portions 41, and the two conductive rods 2 are used to be respectively connected to the positive and negative poles of a power source.

[0041] In this embodiment, a plurality of the plate frames 1 are arranged in sequence along a first direction, the plate frame 1 is provided with two through holes 11, anode plates 3 and cathode plates 4 are alternately arranged between the plurality of the plate frames 1, the anode plate 3 is provided with a first abutting portion 31 corresponding to one of the through holes 11, the cathode plate 4 is provided with a second abutting portion 41 corresponding to the other through hole 11, two conductive rods 2 are respectively penetrated through the two through holes 11, one of the conductive rods 2 abuts against a plurality of the first abutting portions 31, and the other conductive rod 2 abuts against a plurality of the second abutting portions 41, the two conductive rods 2 are used to be respectively connected to the positive and negative poles of a power source, the anode plate 3 and the cathode plate 4 are of comparable size to the plate frame 1, the conductive rod 2 is arranged in the through hole 11, and only the two ends of the conductive rod 2 extend out of the channel and are located outside the plate frame 1, and the power connection mode of the anode plate 3 and the cathode plate 4 is changed from outside the plate frame 1 to inside the plate frame 1, thereby reducing the area of ​​the conductive parts of the device exposed to the outside, reducing the risk of electric shock and short circuit, and having high safety.

[0042] In this example, see Figure 6The plate frame 1 is made of insulating material, and the middle part of the plate frame 1 is hollow. Multiple plate frames 1, multiple anode plates 3 and multiple cathode plates 4 are alternately abutted in sequence along the first direction, that is, the two opposite sides of each plate frame 1 along the first direction are respectively the anode plate 3 and the cathode plate 4, and the anode plate 3, the plate frame 1 and the cathode plate 4 are jointly enclosed to form an electrolysis chamber, so that the device forms a plurality of electrolysis chambers arranged at intervals along the first direction, and the upper and lower ends of each plate frame 1 are respectively provided with a first flow channel 12 and a second flow channel 13 for connecting the plurality of electrolysis chambers in series, that is, the electrolysis chamber is connected to the previous electrolysis chamber through the first flow channel 12, and is connected to the next electrolysis chamber through the second flow channel 13, so that the solution passes through the plurality of electrolysis chambers in sequence to complete the reaction.

[0043] In this embodiment, the first flow channel 12 is arranged in an L shape, the first end of the first flow channel 12 is located above the electrolysis chamber, and the second end of the first flow channel 12 is located on one side of the plate frame 1 along the first direction and corresponds to the first flow channel 12 of another plate frame 1.

[0044] In this embodiment, for the sake of convenience of explanation, the two adjacent plate frames 1 are the first plate frame and the second plate frame, the first plate frame and the second plate frame are abutted in sequence along the liquid flow direction, the second side of the first plate frame is abutted against the first side of the second plate frame, the second end of the first flow channel 12 on the first plate frame is located on the second side, and the second end of the first flow channel 12 on the second plate frame is located on the first side, and the two first flow channels 12 correspond to each other, so that the two adjacent electrolysis chambers can be connected through the two first flow channels 12.

[0045] The specific form of the first flow channel 12 is not limited, and can be square, circular or waist-shaped. In the present embodiment, the first flow channel 12 is circular.

[0046] In this embodiment, in order to increase the flow rate of the liquid, a plurality of first flow channels 12 are provided, and the plurality of first flow channels 12 are arranged at intervals along the second direction, and the first direction and the second direction are perpendicular to each other. Specifically, five first flow channels 12 are provided.

[0047] In this embodiment, the second flow channel 13 includes a first section and a second section, the first section is located below the electrolysis chamber and penetrates the plate frame 1 along a first direction, and the second section connects the electrolysis chamber and the first section.

[0048] In this embodiment, the first sections of two adjacent plate frames 1 correspond to each other, so that multiple first sections can be connected in sequence to form a liquid channel. Such an arrangement can simultaneously transport the solution to multiple electrolytic chambers through the liquid channel, thereby improving the reaction efficiency. The second section is located in the middle of the plate frame 1, and the second section extends in a vertical direction to connect the electrolytic chamber and the first section. The diameter of the first section is greater than the diameter of the second section.

[0049] In this embodiment, the plate frame 1 is further provided with a gas channel 14, and the gas channel 14 includes a first channel and a second channel, the first channel is located above the electrolysis chamber and passes through the plate frame 1 along a first direction, and the second channel connects the electrolysis chamber and the first channel.

[0050] In this embodiment, cobalt chloride solution produces metallic cobalt and chlorine during electrolysis, and the electrolysis chamber is a sealed cavity. In order to discharge chlorine in time, the plate frame 1 is also provided with a gas channel 14. The first channels of the plurality of plate frames 1 are connected in sequence to form a main channel, and the second channel connects the electrolysis chamber and the main channel, and then the generated chlorine is discharged in time through the gas channel 14 to ensure that the electrolysis reaction continues.

[0051] For the sake of convenience, in the following embodiments, the anode plate 3 and the cathode plate 4 are both referred to as pole plates.

[0052] In this embodiment, the length and width of the plate frame 1 are consistent with the length and width of the electrode plate. In order to avoid interference between the electrode plate and the first flow channel 12 and the second flow channel 13, the electrode plate is provided with a first liquid through hole and a second liquid through hole. The first liquid through hole is arranged corresponding to the first flow channel 12, and the second liquid through hole is arranged corresponding to the second flow channel 13.

[0053] In one embodiment, see Figure 1 Character Figure 2 The conductive rod 2 is provided with threads on its outer periphery; the electrode assembly 100 further includes two nuts 5, which are respectively threadedly connected to the two ends of the conductive rod 2 to press the plate frame 1, the anode plate 3 and the cathode plate 4.

[0054] In this embodiment, the sealing of the electrolytic chamber is generally achieved by pressing a plurality of the plate frames 1, the outer periphery of the conductive rod 2 is provided with a thread, the conductive rod 2 is passed through the through hole 11 and its two ends extend out of the plate frame 1, and the two nuts 5 are respectively threadedly connected to the two ends of the conductive rod 2. In this arrangement, not only can the electrode plate be energized through the conductive rod 2, but the conductive rod 2 can also be used as a screw connection 7 to press the plate frame 1, the anode plate 3 and the cathode plate 4, thereby ensuring the sealing of the electrolytic chamber, without the need to additionally set up a pressing mechanism, the structure is simple, and the cost is reduced.

[0055] In this embodiment, in order to improve the sealing of the electrolysis chamber, a plurality of screw connectors 7 may be additionally provided, through which a plurality of plate frames 1 are passed through the plurality of screw connectors 7 to cooperate with the two conductive rods 2 to jointly press the plate frame 1, the anode plate 3 and the cathode plate 4.

[0056] In one embodiment, see Figures 3 to 7 , the diameter of the through hole 11 is greater than the diameter of the conductive rod 2; the anode plate 3 is provided with a first through hole 32, the first through hole 32 is used for the conductive rod 2 to pass through, one end of the first abutting portion 31 is provided at the first through hole 32, and the other end of the first abutting portion 31 is bent along the first direction and extends into one of the through holes 11; the cathode plate 4 is provided with a second through hole 42, the second through hole 42 is used for the conductive rod 2 to pass through, one end of the second abutting portion 41 is provided at the second through hole 42, and the other end of the second abutting portion 41 is bent along the first direction and extends into another of the through holes 11.

[0057] In this embodiment, for the sake of convenience of explanation, the two through holes 11 are respectively the first through hole and the second through hole, the first through holes of the plurality of plate frames 1 constitute the first mounting channel, the second through holes of the plurality of plate frames 1 constitute the second mounting channel, the two conductive rods 2 are divided into the first conductive rod and the second conductive rod, the first conductive rod is inserted into the first mounting channel, the second conductive rod is inserted into the second mounting channel, and the diameter of the first mounting channel is greater than the diameter of the first conductive rod, and the diameter of the second mounting channel is greater than the diameter of the second conductive rod.

[0058] Since the size of the electrode plate is consistent with that of the plate frame 1, in order to avoid interference, the anode plate 3 is provided with a first through hole 32 corresponding to the first through hole, one end of the first abutting portion 31 is provided at the first through hole 32, and the other end of the first abutting portion 31 is bent along the first direction and located in the first mounting channel, and the cathode plate 4 is provided with a second through hole 42 corresponding to the second through hole, one end of the second abutting portion 41 is provided at the second through hole 42, and the other end of the second abutting portion 41 is bent along the first direction and located in the second mounting channel. Such an arrangement can increase the contact area between the first abutting portion 31 and the first conductive rod and between the second abutting portion 41 and the second conductive rod, thereby avoiding poor contact.

[0059] In this embodiment, the lengths of the first abutting portion 31 and the second abutting portion 41 are both smaller than the thickness of the plate frame 1 , that is, the bent portions of the first abutting portion 31 and the second abutting portion 41 are both located in the through hole 11 of the single plate frame 1 .

[0060] In this embodiment, in order to facilitate the insertion of the conductive rod 2 , the bending directions of the first abutting portion 31 and the second abutting portion 41 are kept consistent.

[0061] In one embodiment, see Figure 3 , Figure 8 The first abutting portion 31 and the second abutting portion 41 are inclined toward the middle of the through hole 11 .

[0062] In this embodiment, the diameter of the first via hole 32 is slightly larger than the diameter of the first conductive rod. To ensure that the first abutting portion 31 and the second abutting portion 41 abut against the conductive rod 2 , the first abutting portion 31 and the second abutting portion 41 are inclined toward the middle of the through hole 11 .

[0063] In one embodiment, the first abutting portion 31 and the second abutting portion 41 are both elastically telescopically arranged in a direction approaching and away from a middle portion of the conductive rod 2 .

[0064] In the present embodiment, the first abutting portion 31 and the second abutting portion 41 are both metal spring sheets, one end of the first abutting portion 31 is arranged at the first through hole 32, and the other end of the first abutting portion 31 can be elastically arranged along the direction close to and away from the middle of the conductive rod 2, one end of the second abutting portion 41 is arranged at the second through hole 42, and the other end of the second abutting portion 41 can be elastically arranged along the direction close to and away from the middle of the conductive rod 2, such an arrangement can avoid poor contact between the first abutting portion 31, the second abutting portion 41 and the conductive rod 2.

[0065] In one embodiment, see Figure 8 The first abutting portion 31 and the second abutting portion 41 are both arranged in an arc shape to adapt to the conductive rod 2.

[0066] In this embodiment, since the conductive rod 2 is cylindrical, in order to increase the contact area between the first abutting portion 31 and the second abutting portion 41 and the conductive rod 2 , the first abutting portion 31 and the second abutting portion 41 are both arc-shaped.

[0067] In one embodiment, see Figure 7 The two through holes 11 include a first through hole and a second through hole, the first abutting portion 31 corresponds to the first through hole, and the second abutting portion 41 corresponds to the second through hole; the anode plate 3 is provided with a first avoidance hole 33 corresponding to the second through hole, and the cathode plate 4 is provided with a second avoidance hole 43 corresponding to the first through hole, and the diameters of the first avoidance hole 33 and the second avoidance hole 43 are both larger than the diameter of the conductive rod 2.

[0068] In this embodiment, the anode plate 3 is connected to the first conductive rod and connected to the positive pole of the power supply, and the cathode plate 4 is connected to the second conductive rod and connected to the negative pole of the power supply. In order to avoid the anode plate 3 and the cathode plate 4 from being short-circuited due to the conductive rod 2, the anode plate 3 is provided with a first avoidance hole 33 corresponding to the second through hole, and the cathode plate 4 is provided with a second avoidance hole 43 corresponding to the first through hole. The diameters of the first avoidance hole 33 and the second avoidance hole 43 are both larger than the diameter of the conductive rod 2. By providing the first avoidance hole 33 and the second avoidance hole, the anode plate 3 can avoid the second conductive rod, and the cathode plate 4 can avoid the first conductive rod, so as to avoid a short circuit.

[0069] In one embodiment, an insulating coating is provided around the first avoidance hole 33 and the second avoidance hole 43. The insulating coating can further improve the insulation performance and extend the service life.

[0070] In one embodiment, see Figure 2 The electrode assembly 100 further includes two end plates 6, which are disposed at both ends of the plurality of plate frames 1 along the first direction, and the end plates 6 are provided with mounting holes corresponding to the through holes 11, and the mounting holes are used for the conductive rods 2 to pass through.

[0071] In this embodiment, the two end plates 6 are the first end plate and the second end plate, and the first end plate and the second end plate are respectively arranged at the two ends of the plurality of plate frames 1 along the first direction, and the first end plate is used to be fixedly installed on the frame 200, and the first end plate is provided with a liquid inlet hole connected to the first flow channel 12, and the second end plate is provided with a liquid outlet hole connected to the second flow channel 13 and an air outlet hole connected to the gas channel 14, and the first end plate and the second end plate are both provided with holes corresponding to the conductive rod 2 and the screw connection 7, and the material of the first end plate and the second end plate is insulating material.

[0072] In this embodiment, the first end plate, the plurality of plate frames 1 and the second end plate are arranged in sequence along the direction of the liquid flow path, and the conductive rod 2 and the screw connector 7 pass through the first end plate, the plurality of plate frames 1 and the second end plate to press the above components to form a sealing structure, which is conducive to the collection of electrolysis products.

[0073] In one embodiment, a positioning protrusion 34 is provided on one side of the anode plate 3 and the cathode plate 4 , and the positioning protrusion 34 is used to fit with a positioning groove of the frame 200 .

[0074] In this embodiment, an insulating coating is provided on the surface of the positioning protrusion 34 .

[0075] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An electrode assembly, characterized in that: It includes: A plurality of plate frames are sequentially arranged along a first direction, the plate frames are provided with two through holes, anode plates and cathode plates are alternately arranged between the plurality of plate frames, the anode plate is provided with a first abutting portion corresponding to one of the through holes, and the cathode plate is provided with a second abutting portion corresponding to another through hole; Two conductive rods are respectively inserted into two through holes, wherein one of the conductive rods abuts against the first abutting portions, and the other conductive rod abuts against the second abutting portions, and the two conductive rods are respectively connected to the positive and negative electrodes of the power supply.

2. The electrode assembly according to claim 1, characterized in that: The outer circumference of the conductive rod is provided with threads; The electrode assembly further includes two nuts, which are respectively threadedly connected to two ends of the conductive rod to press the plate frame, the anode plate and the cathode plate.

3. The electrode assembly according to claim 1, characterized in that: The diameter of the through hole is greater than the diameter of the conductive rod; The anode plate is provided with a first through hole, the first through hole is used for the conductive rod to pass through, one end of the first abutment portion is provided in the first through hole, and the other end of the first abutment portion is bent along a first direction and extends into one of the through holes; The cathode plate is provided with a second through hole, the second through hole is used for the conductive rod to pass through, one end of the second abutting portion is provided in the second through hole, and the other end of the second abutting portion is bent along the first direction and extends into another through hole.

4. The electrode assembly according to claim 3, characterized in that: The first abutting portion and the second abutting portion are arranged to be inclined toward the middle of the through hole.

5. The electrode assembly according to claim 1, characterized in that: The first abutting portion and the second abutting portion are both elastically telescopically arranged along a direction approaching and away from the middle of the conductive rod.

6. The electrode assembly according to claim 1, characterized in that: The first abutting portion and the second abutting portion are both arranged in an arc shape to be matched with the conductive rod.

7. The electrode assembly according to claim 1, characterized in that: The two through holes include a first through hole and a second through hole, the first abutting portion corresponds to the first through hole, and the second abutting portion corresponds to the second through hole; The anode plate is provided with a first avoidance hole corresponding to the second through hole, and the cathode plate is provided with a second avoidance hole corresponding to the first through hole. The diameters of the first avoidance hole and the second avoidance hole are both larger than the diameter of the conductive rod.

8. The electrode assembly according to claim 7, characterized in that: An insulating coating is provided around the first avoidance hole and the second avoidance hole.

9. The electrode assembly according to claim 1, characterized in that: The electrode assembly further comprises two end plates, the two end plates being arranged at two ends of the plurality of plate frames along the first direction, the end plates being provided with mounting holes corresponding to the through holes, the mounting holes being used for the conductive rods to pass through; and / or, One side of the anode plate and the cathode plate is provided with a positioning protrusion, and the positioning protrusion is used to fit with the positioning groove of the frame.

10. An electrolytic cell, characterized in that: The electrolytic cell includes a frame and an electrode assembly as described in any one of claims 1 to 9, a positioning groove is provided on one side of the frame, and the positioning groove is extended along a first direction. The plate frame, the anode plate and the cathode plate are all placed on the frame, and the positioning protrusion extends into the positioning groove to limit the movement of the anode plate and the cathode plate along a second direction, and the first direction and the second direction are perpendicular to each other.

Images