Cathode and anode plate packaging structure

Abstract

The utility model discloses a cathode and anode plate packaging structure which comprises a plurality of cathode plates and anode plates which are arranged in a penetrating mode, a partition plate is arranged between each anode plate and the adjacent cathode plate, the cathode plates comprise two first cathode plates and a plurality of second cathode plates, the two first cathode plates are located on the two sides of the second cathode plates respectively, and the second cathode plates are located on the two sides of the first cathode plates respectively. The thickness of the first cathode plate is greater than that of the second cathode plate; a locking bolt for fixing the cathode plate and the spacing plate is arranged between the cathode plate and the spacing plate in a penetrating manner, and at least one elastic element propped against the outer side of the first cathode plate is arranged on the locking bolt. According to the utility model, the problems that the existing packaging structure is poor in stability and easy to be affected by heat are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical device technology, and in particular to a cathode and anode plate packaging structure. Background Technology

[0002] In electrochemical device packaging technology, the anode and cathode plate packaging structure is a common structural form, widely used in batteries, electrolyzers, capacitors, and other equipment. Traditional anode and cathode plate packaging structures use alternating anode and cathode plates, separated by separators, and utilize locking bolts and conductive strips to ensure effective current transmission. However, existing packaging structures suffer from poor stability, are susceptible to heat, and the plastic separators are prone to deformation during assembly, leading to uneven spacing between the anode and cathode plates and potentially causing short circuits. Furthermore, thermal expansion and contraction during operation can cause components to loosen, affecting efficiency and lifespan. Utility Model Content

[0003] The main purpose of this invention is to provide a cathode and anode plate packaging structure, which aims to solve the problems of poor stability and susceptibility to heat in existing packaging structures.

[0004] To achieve the above objectives, this utility model proposes a cathode and anode plate encapsulation structure, comprising a plurality of interleaved cathode plates and anode plates, wherein a spacer plate is provided between the anode plate and an adjacent cathode plate, and the cathode plate comprises two first cathode plates and a plurality of second cathode plates, wherein the two first cathode plates are respectively located on both sides of the plurality of second cathode plates, and the thickness of the first cathode plate is greater than the thickness of the second cathode plate; a locking bolt for fixing the cathode plate and the spacer plate is provided between the cathode plate and the spacer plate, and the locking bolt is provided with at least one elastic element that abuts against the outer side of the first cathode plate.

[0005] Optionally, the cathode plate and the spacer plate are respectively provided with reserved holes for the locking bolts to pass through.

[0006] Optionally, the locking bolt includes a screw head, a screw body, and a nut. The screw body is used to pass through the reserved hole, and the two ends of the screw body are respectively located on the outer sides of the two first cathode plates. The screw head and the nut are respectively located at the two ends of the screw body.

[0007] Optionally, the elastic element includes a first elastic element and a second elastic element, wherein the first elastic element is provided between the first cathode plate on one side and the screw head, and the second elastic element is provided between the first cathode plate on the other side and the screw nut.

[0008] Optionally, both the first elastic element and the second elastic element are composed of multiple butterfly springs working together.

[0009] Optionally, a gasket is provided between the screw head and the first elastic element, and between the screw nut and the second elastic element.

[0010] Optionally, the spacer plate is provided with a conductive strip, which is located on the side of the spacer plate closest to the anode plate.

[0011] Optionally, the spacer is made of an insulating material.

[0012] Optionally, the thickness of the first cathode plate is 3 mm.

[0013] Optionally, the anode plate is a boron-doped diamond electrode plate.

[0014] The beneficial effects of this utility model are as follows: it improves the packaging structure of the existing anode and cathode plates. By increasing the thickness of the first cathode plate, the rigidity of the first cathode plate is increased, preventing arching during the pre-tightening process and reducing the risk of short circuits. At the same time, the use of a butterfly spring in the locking bolt allows the deformation of the butterfly spring to absorb the displacement caused by thermal expansion and contraction during the locking process, thereby maintaining the stability and tightness of the locking bolt and avoiding loosening of components and poor conductivity caused by thermal expansion and contraction, thus extending the service life of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of a cathode and anode plate packaging structure according to the present invention;

[0017] Label Explanation:

[0018] 1. Cathode plate; 11. First cathode plate; 12. Second cathode plate; 2. Anode plate; 3. Spacer plate; 41. First elastic element; 42. Second elastic element; 51. Screw head; 52. Screw body; 53. Nut; 6. Washer; 7. Conductive strip;

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] One embodiment of this utility model provides a packaging structure for the anode and cathode plates 2, as shown in the reference. Figure 1 The device includes several cathode plates 1 and anode plates 2 arranged in an interlaced manner. A spacer plate 3 is provided between the anode plate 2 and the adjacent cathode plate 1. The cathode plate 1 includes two first cathode plates 11 and several second cathode plates 12. The two first cathode plates 11 are respectively located on both sides of the several second cathode plates 12. The thickness of the first cathode plate 11 is greater than the thickness of the second cathode plate 12. A locking bolt for fixing the cathode plate 1 and the spacer plate 3 is provided between the cathode plate 1 and the spacer plate 3. The locking bolt is provided with at least one elastic element that abuts against the outer side of the first cathode plate 11.

[0024] This embodiment improves the existing packaging structure of anode and cathode plates. By increasing the thickness of the first cathode plate 11, the rigidity of the first cathode plate 11 is increased. This allows the first cathode plate 11 to maintain its original planar shape even under greater pressure during the pre-tightening process, preventing arching and reducing the risk of short circuits caused by deformation of the first cathode plate 11. This ensures the stability and reliability of the entire packaging structure. At the same time, a butterfly spring is used in the locking bolt. The deformation of the butterfly spring absorbs the displacement caused by thermal expansion and contraction during the locking process, thereby maintaining the stability and tightness of the locking bolt. This avoids loosening of components and poor conductivity caused by thermal expansion and contraction, extending the service life of the equipment.

[0025] Furthermore, both the cathode plate 1 and the spacer plate 3 have pre-drilled holes for the locking bolts to pass through. The locking bolts can pass through the pre-drilled holes to the cathode plate 1 and the spacer plate 3, forming a stable connection structure between the cathode plate 1, the spacer plate 3, and the anode plate 2, ensuring the stability and reliability of the encapsulation structure. The pre-drilled holes also allow for easy removal of the locking bolts to facilitate maintenance or component replacement, improving maintenance efficiency and reducing maintenance costs.

[0026] Furthermore, the locking bolt includes a screw head 51, a screw body 52, and a nut 53. The screw body 52 is used to pass through the reserved hole, and the two ends of the screw body 52 are respectively located on the outer side of the two first cathode plates 11. The screw head 51 and the nut 53 are respectively located at the two ends of the screw body 52.

[0027] Furthermore, the elastic element includes a first elastic element 41 and a second elastic element 42, wherein the first elastic element 41 is provided between the first cathode plate 11 on one side and the screw head 51, and the second elastic element 42 is provided between the first cathode plate 11 on the other side and the nut 53.

[0028] Specifically, when the anode and cathode plate 2 encapsulation structure is subjected to temperature changes or external forces during use, the first elastic element 41 and the second elastic element 42 can work together to absorb and regulate the displacement changes caused by thermal expansion and contraction or external forces. Through mutual cooperation and coordinated work, they ensure that the locking bolts always maintain a stable preload, preventing the occurrence of component loosening and poor conductivity.

[0029] In this embodiment, a first elastic element 41 is fitted onto the screw head 51, and then the screw body 52 is passed through the first and second pre-drilled holes, so that the first elastic element 41 is located between the first cathode plate 11 and the screw head 51 on one side. Then, the second elastic element 42 is fitted onto the screw body 52, and the nut 53 is tightened, so that the second elastic element 42 is located between the first cathode plate 11 and the nut 53 on the other side. This fixes the anode plate 2, the cathode plate 1, and the spacer plate 3 together to form a modular integrated structure. Furthermore, during the tightening process of the locking bolt, the first elastic element 41 and the second elastic element 42 provide elastic force, ensuring close contact between the locking bolt and the cathode plate 1, thus enhancing the fastening effect.

[0030] Furthermore, both the first elastic element 41 and the second elastic element 42 are composed of multiple butterfly springs working together. The first elastic element 41 and the second elastic element 42 can be a single butterfly spring, or multiple butterfly springs connected in series or parallel, depending on the elasticity and preload requirements of the packaging structure. In addition, the cooperation of multiple butterfly springs improves the reliability and durability of the elastic elements; that is, when one or more butterfly springs wear out or fail due to long-term use, the other butterfly springs can still function, maintaining the stability and safety of the packaging structure.

[0031] It should be noted that, in other embodiments, the first elastic element 41 and the second elastic element 42 may also be other elastic elements that have similar functions to a disc spring.

[0032] Furthermore, washers 6 are provided between the screw head 51 and the first elastic element 41, and between the nut 53 and the second elastic element 42. In this embodiment, the washers 6 increase the contact area between the screw head 51 and the first elastic element 41, and between the nut 53 and the second elastic element 42, resulting in a more uniform pressure distribution. This helps reduce local deformation or damage caused by pressure concentration, thereby improving the stability of the entire connection structure. Furthermore, by increasing the contact area, the washers 6 provide better friction, helping to prevent the nut 53 from loosening under temperature changes or external forces, enhancing the fastening effect and ensuring the reliability of the connection.

[0033] Furthermore, a conductive strip 7 is provided on the spacer 3, and the conductive strip 7 is disposed on the side of the spacer 3 near the anode plate 2. In this embodiment, the conductive strip 7 is adhered to the spacer 3 for transmitting current. When the conductive strip 7 contacts the anode plate 2, a current path is formed, allowing current to flow from the anode plate 2 through the conductive strip 7 to other parts of the device.

[0034] In this embodiment, the conductive strip 7 is a titanium sheet structure. Titanium has excellent hardness, heat resistance, and electrical and thermal conductivity, and is highly corrosion resistant, which can ensure the service life of the encapsulation structure.

[0035] Furthermore, the spacer 3 is made of an insulating material. An insulating spacer 3 can effectively prevent current leakage along paths where it should not flow, thus helping to prevent short circuits. In this embodiment, the spacer 3 is preferably a plastic spacer.

[0036] Furthermore, the thickness of the first cathode plate 11 is 3mm. In the prior art, the thickness of the cathode plate 1 is usually 1.5mm. In this solution, the thickness of the first cathode plate 11 (i.e., the outer cathode plate) is increased to 3mm, which increases the rigidity of the first cathode plate 11, enabling it to better resist deformation caused by external pressure or internal stress during pre-tightening or operation, and avoid arching.

[0037] Furthermore, the anode plate 2 is configured as a boron-doped diamond electrode plate. The boron-doped diamond electrode plate has high mechanical strength, chemical inertness, excellent electrochemical performance, and strong corrosion resistance. Even under harsh acid and alkaline conditions, it can still maintain electrode activity and stability. Under the same current density, it can efficiently generate hydroxyl radicals, thereby enabling the rapid removal of organic matter. It can work stably for a long time in highly corrosive media. Compared with other electrochemical oxidation electrodes (such as PbO2, shape-stabilized electrodes (DSA), IrO2, etc.), it has a higher mineralization effect on organic pollutants in water.

[0038] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A positive and negative electrode plate packaging structure, characterized in that, The application relates to a battery, which comprises a plurality of interleaved cathode plates and anode plates, and a spacer plate arranged between the adjacent cathode plate and anode plate, wherein the cathode plate comprises two first cathode plates and a plurality of second cathode plates, the two first cathode plates are respectively arranged on the two sides of the plurality of second cathode plates, the thickness of the first cathode plate is greater than that of the second cathode plate; locking bolts are arranged between the cathode plate and the spacer plate for fixing the cathode plate and the spacer plate, and at least one elastic element is arranged on the locking bolt and abuts against the outer side of the first cathode plate.

2. The anode-cathode plate packaging structure of claim 1, wherein, Reserve holes are respectively arranged on the cathode plate and the spacer plate for the locking bolts.

3. The anode-cathode plate packaging structure of claim 2, wherein, The locking bolt comprises a screw head, a screw body and a screw cap, the screw body is arranged through the reserve hole, and the two ends of the screw body are respectively arranged on the outer sides of the two first cathode plates; the screw head and the screw cap are respectively arranged at the two ends of the screw body.

4. The anode-cathode plate packaging structure of claim 3, wherein, The elastic element comprises a first elastic element and a second elastic element, the first elastic element is arranged between the first cathode plate on one side and the screw head, and the second elastic element is arranged between the first cathode plate on the other side and the screw cap.

5. The anode-cathode plate packaging structure of claim 4, wherein, The first elastic element and the second elastic element are respectively composed of a plurality of butterfly springs.

6. The anode-cathode plate packaging structure of claim 4, wherein, A gasket is arranged between the screw head and the first elastic element and between the screw cap and the second elastic element.

7. The anode-cathode plate packaging structure of claim 1, wherein, The spacer plate is provided with a conductive strip, and the conductive strip is arranged on the spacer plate close to the anode plate.

8. The anode-cathode plate packaging structure of claim 1, wherein, The spacer plate is made of insulating material.

9. The anode-cathode plate packaging structure of claim 1, wherein, The thickness of the first cathode plate is 3 mm.

10. The anode-cathode plate packaging structure of claim 1, wherein, The anode plate is a boron-doped diamond electrode plate.

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